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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
February 2007
FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Features at +5V
0.4mA supply current 70MHz bandwidth at unity gain Power down to 30A Output voltage range at RL = 1k : 0.07V to 4.8V Input extends below negative rail: -0.3V to 4V 50V/s slew rate 12nV/Hz input voltage noise Small SOT23-6 and MicroPakTM -6 package options Fully specified at +2.7V, +5V, and 5V supplies
Description
The FHP3131 is a high-performance, voltage-feedback amplifier that consumes only 0.4mA of supply current while providing 70MHz of bandwidth and 50V/s slew rate. The FHP3131 is designed to operate from 2.5V to 12V (6V) supplies. The common mode voltage range extends below the negative rail and the output provides rail-to-rail performance. The FHP3131 is fabricated on a complementary bipolar process. The combination of low power, rail-to-rail performance, low voltage operation, and tiny package options make this amplifier well suited for use in many generalpurpose, high-speed applications. For power sensitive applications, the FHP3131 offers unparalleled dynamic performance. It also offers a shutdown feature to lower the supply current draw below 30A. The FHP3131 is available in space-saving 6-lead SOT23 or MicroPakTM packages and operates from -40C to +85C.
1
Applications
Portable/battery-powered applications A/D buffer Active filters Portable test instruments Set-top box HDTV DVD players and recorders Coaxial cable drivers Video driver
Normalized Gain (dB)
0 -1 -2 -3 -4 -5 -6 -7 0.1 1 10 100
G=2 Vs = +5V VO = 4Vpp VO = 2Vpp VO = 1Vpp
Frequency (MHz)
Ordering Information
Part Number
FHP3131IS6X FHP3131IL6X
Moisture sensitivity level for all parts is MSL-1. MicroPakTM is a trademark of Fairchild Semiconductor Corporation.
Package
SOT23-6 MicroPak-6
Pb-Free
Yes Yes
Operating Temperature Range
-40C to +85C -40C to +85C
Packaging Method
Reel Reel
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Pin Configurations
FHP3131 SOT23 OUT -Vs +IN
1 2 3 6
FHP3131 MicroPakTM
+Vs DIS -IN
+Vs DIS -IN
1 2 3
6 5 4
OUT -Vs +IN
+
-
5 4
Top View
Pin Assignments
Pin # SOT/MicroPak
1/6 2/5 3/4 4/3 5/2 6/1
Name
OUT -Vs +IN -IN DIS +Vs Output Negative supply Positive input Negative input
Description
Leave floating or pull high to enable. Pull low to disable. Positive supply
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.
Parameter
Supply Voltage Input Voltage Range
Min.
0 -Vs -0.5V
Max.
12.6 +Vs +0.5V
Unit
V V
Reliability Information
Parameter
Junction Temperature Storage Temperature Range Reflow Temperature (Soldering) Package Thermal Resistance 6-Lead SOT23
(1)
Min.
-65
Typ.
Max.
150 150 260
Unit
C C C C/W C/W
302 440
6-Lead MicroPakTM(1)
Notes: 1. Package thermal resistance (JA), JEDEC standard, multi-layer test boards, still air.
ESD Protection
Product
Human Body Model (HBM) Charged Device Model (CDM)
FHP3131
4kV 2kV
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings.
Parameter
Operating Temperature Range Supply Voltage Range
Min.
-40 2.5
Typ.
Max.
+85 12
Unit
C V
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Electrical Characteristics at +2.7V
TA = 25C, Vs = 2.7V, Rf = 1k, RL = 1k to Vs/2, G = 2, unless otherwise noted. Symbol
UGBW BWss BWLs tR, tF tS OS SR HD2 HD3 THD en VIO dVIO Ib dIb IIO PSRR AOL IS TON / TOFF OFFISO VOFF VON ISD RIN CIN CMIR CMRR
Parameter
-3dB Bandwidth Small Signal Bandwidth Large Signal Bandwidth Rise and Fall Time Settling Time to 0.1% Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion Total Harmonic Distortion Input Voltage Noise Input Offset Voltage Average Drift Input Bias Current Average Drift Input Offset Current Power Supply Rejection Ratio Open-Loop Gain Supply Current Turn-On/Turn-Off Time Off Isolation Power Down Input Voltage Enable Input Voltage Disabled Supply Current Input Resistance Input Capacitance Input Common Mode V Range Common Mode Rejection Ratio DC DC
Conditions
G = +1, VOUT = 0.2Vpp G = +2, VOUT = 0.2Vpp G = +2, VOUT = 2Vpp VOUT = 0.2V step VOUT = 1V step VOUT = 1V step VOUT = 2V step, G = -1 VOUT = 1Vpp, 1MHz VOUT = 1Vpp, 1MHz VOUT = 1Vpp, 1MHz > 100kHz
Min.
Typ.
70 28 10 11 85 4 45 67 65 63 12 1 10 1.4 3.5 30 100 95 0.4 0.4/2.2
Max.
Units
MHz MHz MHz ns ns % V/s dBc dBc dB nV/Hz mV V/C A nA/C nA dB dB mA s dB V V A M pF V dB
Frequency Domain Response
Time Domain Response
Distortion/Noise Response
DC Performance
Disable Characteristics 5MHz, RL = 100 Disabled if pin is grounded or pulled below VOFF Enabled if pin is floating or pulled above VON DIS pin grounded 65 Vs-1.75 Vs-1.1 15 14 1.1 -0.3 to 1.7 DC, VCM = 0V to Vs - 1.5 RL = 1k to Vs/2, G = -1 VOUT IOUT ISC Output Voltage Swing RL = 150 to Vs/2, G = -1 Linear Output Current Short-Circuit Output Current VOUT = Vs/2 95 0.05 to 2.59 0.15 to 2.3 +20,-11 +25,-14
Input Characteristics
Output Characteristics V V mA mA
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Electrical Characteristics at +5V
TA = 25C, Vs = 5V, Rf = 1k, RL = 1k to Vs/2, G = 2, unless otherwise noted. Symbol
UGBW BWss BWLs tR, tF tS OS SR HD2 HD3 THD en DG DP VIO dVIO Ib dIb IIO PSRR AOL IS TON / TOFF OFFISO VOFF VON ISD RIN CIN CMIR CMRR
Parameter
-3dB Bandwidth Small Signal Bandwidth Large Signal Bandwidth Rise and Fall Time Settling Time to 0.1% Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion Total Harmonic Distortion Input Voltage Noise Differential Gain Differential Phase Input Offset Voltage(1) Average Drift Input Bias Current(1) Average Drift Input Offset Current(1) Power Supply Rejection Ratio(1) Open-Loop Gain(1) Supply Current(1) Turn-On/Turn-Off Time Off Isolation Power Down Input Voltage(1) Enable Input Voltage(1) Disabled Supply Current(1) Input Resistance Input Capacitance Input Common Mode V Range Common Mode Rejection Ratio
(1)
Conditions
G = +1, VOUT = 0.2Vpp G = +2, VOUT = 0.2Vpp G = +2, VOUT = 2Vpp VOUT = 0.2V step VOUT = 2V step VOUT = 0.2V step VOUT = 2V step, G = -1 VOUT = 2Vpp, 1MHz VOUT = 2Vpp, 1MHz VOUT = 2Vpp, 1MHz > 100kHz NTSC (3.58MHz); AC-coupled NTSC (3.58MHz); AC-coupled
Min.
Typ.
70 28 11 11 80 2 50 64 58 57 12 0.04 0.13
Max.
Units
MHz MHz MHz ns ns % V/s dBc dBc dB nV/Hz %
Frequency Domain Response
Time Domain Response
Distortion / Noise Response
DC Performance -5 -3.5 1 10 1.4 3.5 30 DC DC 70 65 100 100 0.40 0.5/1.9 5MHz, RL = 100 Disabled if pin is grounded or pulled below VOFF Enabled if pin is floating or pulled above VON DIS pin grounded 65 Vs-1.9 Vs-1.2 30 20 1 -0.3 to 4 DC, VCM = 0V to Vs - 1.5 RL = 1k to Vs/2(1) RL = 150 to Vs/2 VOUT = Vs/2 78 0.2 100 0.07 to 4.8 0.25 to 4.4 +30,-18 +35,-24 4.65 45 0.62 350 3.5 5 mV V/C A nA/C nA dB dB mA s dB V V A M pF V dB V V mA mA
Disable Characteristics
Input Characteristics
Output Characteristics VOUT IOUT ISC Output Voltage Swing Linear Output Current Short-Circuit Output Current
Note: 1. 100% tested at 25C.
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Electrical Characteristics at 5V
TA = 25C, Vs = 5V, Rf = 1k, RL = 1k to GND, G = 2, unless otherwise noted. Symbol
UGBW BWss BWLs tR, tF tS OS SR HD2 HD3 THD en DG DP VIO dVIO Ib dIb IIO PSRR AOL IS TON / TOFF OFFISO VOFF VON ISD RIN CIN CMIR CMRR
Parameter
-3dB Bandwidth Small Singal Bandwidth Large Signal Bandwidth Rise and Fall Time Settling Time to 0.1% Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion Total Harmonic Distortion Input Voltage Noise Differential Gain Differential Phase Input Offset Voltage Average Drift Input Bias Current Average Drift Input Offset Current Power Supply Rejection Ratio Open-Loop Gain Supply Current per Amplifier Turn-On/Turn-Off Time Off Isolation Power Down Input Voltage Enable Input Voltage Disabled Supply Current Input Resistance Input Capacitance Input Common Mode V Range Common Mode Rejection Ratio DC DC
Conditions
G = +1, VOUT = 0.2Vpp G = +2, VOUT = 0.2Vpp G = +2, VOUT = 2Vpp VOUT = 0.2V step VOUT = 2V step VOUT = 0.2V step VOUT = 2V step, G = -1 VOUT = 2Vpp, 5MHz VOUT = 2Vpp, 5MHz VOUT = 2Vpp, 5MHz > 100kHz NTSC (3.58MHz); AC-coupled NTSC (3.58MHz); AC-coupled
Min.
Typ.
70 28 11 11 80 2 45 64 58 57 12 0.08 0.16 1 10 1.4 3.5 30 100 100 0.4 0.5/2
Max.
Units
MHz MHz MHz ns ns % V/s dBc dBc dB nV/Hz % mV V/C A nA/C nA dB dB mA s dB V V A M pF V dB V V mA mA
Frequency Domain Response
Time Domain Response
Distortion/Noise Response
DC Performance
Disable Characteristics 5MHz, RL = 100 Disabled if pin is grounded or pulled below VOFF Enabled if pin is floating or pulled above VON DIS pin grounded 65 Vs-2.9 Vs-1.4 45 25 1 -5.3 to 4 DC, VCM = -5V to 3.5V RL = 1k RL = 150 VOUT = 0V 100 4.8 +2.9,-4.23 +35,-25 +43,-33
Input Characteristics
Output Characteristics VOUT IOUT ISC Output Voltage Swing Linear Output Current Short-Circuit Output Current
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Typical Performance Characteristics
TA = 25C, RL = 1k to Vs/2 for Vs = 5V and 2.7V, RL = 1k to GND for Vs = 5V, G = 2 and Rf = Rg = 1k, unless otherwise noted.
1 1
G=1
Normalized Gain (dB)
-1 -2 -3 -4 -5 -6 -7 0.1
Normalized Gain (dB)
0
G = 10 G=5 G=2
0 -1 -2 -3 -4 -5 -6 -7
Vo = 0.2Vpp G = -10 G = -5 G = -2
G = -1
Vo = 0.2Vpp
1
10
100
0.1
1
10
100
Frequency (MHz)
Frequency (MHz)
Figure 1. Non-Inverting Freq. Response (5V)
Figure 2. Inverting Freq. Response (5V)
1
1
G=1
Normalized Gain (dB)
-1 -2 -3 -4 -5 -6 -7 0.1
Normalized Gain (dB)
0
G = 10 G=5 G=2
0 -1 -2 -3 -4 -5 -6 -7
Vo = 0.2Vpp G = -10 G = -5 G = -2
G = -1
Vo = 0.2Vpp
1
10
100
0.1
1
10
100
Frequency (MHz)
Frequency (MHz)
Figure 3. Non-Inverting Freq. Response (+5V)
Figure 4. Inverting Freq. Response (+5V)
1
1
G=1
Normalized Gain (dB)
-1 -2 -3 -4 -5 -6 -7 0.1
Normalized Gain (dB)
0
G = 10 G=5 G=2
0 -1 -2 -3 -4 -5 -6 -7
Vo = 0.2Vpp G = -10 G = -5 G = -2
G = -1
Vo = 0.2Vpp
1
10
100
0.1
1
10
100
Frequency (MHz)
Frequency (MHz)
Figure 5. Non-Inverting Freq. Response (+2.7V)
Figure 6. Inverting Freq. Response (+2.7V)
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Typical Performance Characteristics - Continued
TA = 25C, RL = 1k to Vs/2 for Vs = 5V and 2.7V, RL = 1k to GND for Vs = 5V, G = 2 and Rf = Rg = 1k, unless otherwise noted.
1 1
Vo = 0.2Vpp CL = 1000pF RS = 15 CL = 500pF RS = 20 CL = 100pF RS = 75
+ 1k 1k Rs CL RL
Normalized Gain (dB)
Normalized Gain (dB)
0 -1 -2 -3 -4 -5 -6 -7 0.1 1 10 100
0 -1 -2 -3 -4 -5 -6 -7 0.1 1 10 100
Vo = 0.2Vpp RL = 5k RL = 50 RL = 150 RL = 1k
CL = 50pF RS = 75 CL = 10pF RS = 0
Frequency (MHz)
Frequency (MHz)
Figure 7. Frequency Response vs. CL (+5V)
Figure 8. Frequency Response vs. RL (+5V)
1
1
Normalized Gain (dB)
-1 -2 -3 -4 -5 -6 -7 0.1
Normalized Gain (dB)
0
VO = 4Vpp VO = 2Vpp VO = 1Vpp
0 -1 -2 -3 -4 -5 -6 -7
VO = 4Vpp VO = 2Vpp VO = 1Vpp
1
10
100
0.1
1
10
100
Frequency (MHz)
Frequency (MHz)
Figure 9. Large Signal Freq. Response (5V)
Figure 10. Large Signal Freq. Response (+5V)
0.2
120
90
Gain Phase
Normalized Gain (dB)
0 -0.1 -0.2 -0.3 -0.4 -0.5 0.1 1 10 100
Vo = 2Vpp RL = 150 VS = 5V VS = 5V
Open Loop Gain (dB)
0.1
Open Loop Phase (deg)
100 80 60 40 20 0 1
45 0 -45 -90 -135 -180
10
100
1k
10k 100k 1M 10M 100M 1G
Frequency (MHz)
Frequency (Hz)
Figure 11. Gain Flatness vs. Frequency
Figure 12. Open-Loop Gain and Phase (+5V)
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Typical Performance Characteristics - Continued
TA = 25C, RL = 1k to Vs/2 for Vs = 5V and 2.7V, RL = 1k to GND for Vs = 5V, G = 2 and Rf = Rg = 1k, unless otherwise noted.
-30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.1 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.1
Harmonic Distortion (dBc)
HD3 RL = 150
Harmonic Distortion (dBc)
Vo = 2Vpp
Vo = 2Vpp
HD3 RL = 150
HD2 RL = 150 HD2 RL = 1k HD3 RL = 1k
HD2 RL = 150 HD2 RL = 1k HD3 RL = 1k
1
5
1
5
Frequency (MHz)
Frequency (MHz)
Figure 13. HD vs. Frequency (5V)
Figure 14. HD vs. Frequency (+5V)
-30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.5
Freq = 5MHz
Freq = 1MHz
Freq = 500kHz Freq = 100kHz
-30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.5
Freq = 5MHz
HD2 (dBc)
HD3 (dBc)
Freq = 1MHz
Freq = 500kHz
Freq = 100kHz
0.75
1
1.25
1.5
1.75
2
2.25
2.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
Amplitude (Vpp)
Amplitude (Vpp)
Figure 15. HD2 vs. VOUT (5V)
Figure 16. HD3 vs. VOUT (5V)
-30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.5
Freq = 5MHz
Freq = 1MHz
Freq = 500kHz Freq = 100kHz
-30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.5
Freq = 5MHz
HD2 (dBc)
HD3 (dBc)
Freq = 1MHz
Freq = 500kHz
Freq = 100kHz
0.75
1
1.25
1.5
1.75
2
2.25
2.5
0.75
1
1.25
1.5
1.75
2
2.25
2.5
Amplitude (Vpp)
Amplitude (Vpp)
Figure 17. HD2 vs. VOUT (+5V)
Figure 18. HD3 vs. VOUT (+5V)
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Typical Performance Characteristics - Continued
TA = 25C, RL = 1k to Vs/2 for Vs = 5V and 2.7V, RL = 1k to GND for Vs = 5V, G = 2, and Rf = Rg = 1k, unless otherwise noted.
0.225 0.2 0.175 0.15 0.125 0.1 0.075 0.05 0.025 0 -0.025 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.25 2.0 1.75 1.5 1.25 1.0 0.75 0.5 0.25 0 -0.25 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Output Voltage (V)
Time (s)
Output Voltage (V)
Time (s)
Figure 19. Small Signal Pulse Response (+2.7V)
Figure 20. Large Signal Pulse Response (+2.7V)
0.225 0.2 0.175 0.15 0.125 0.1 0.075 0.05 0.025 0 -0.025 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 -0.5 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Output Voltage (V)
Time (s)
Output Voltage (V)
Time (s)
Figure 21. Small Signal Pulse Response (+5V)
Figure 22. Large Signal Pulse Response (+5V)
5.0 4.0 3.0 2.0 1.0 0 -1.0 -2.0 -3.0 -4.0 -5.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
2.7
Output Voltage (0.5V/div)
0 0 5 10 15 20 25 30 35 40 45 50
Output Voltage (V)
Time (s)
Time (s)
Figure 23. Large Signal Pulse Response (5V)
Figure 24. Output Swing: VS = +2.7V; G = 1
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Typical Performance Characteristics - Continued
TA = 25C, RL = 1k to Vs/2 for Vs = 5V and 2.7V, RL = 1k to GND for Vs = 5V, G = 2, and Rf = Rg = 1k, unless otherwise noted.
7 0.7 7 0.7 0.6 0.5 0.4 0.3
2.35s Disable Disable Pulse Output
VIN = 0.25Vpp
VIN = 0.25Vpp
Disable Amplitude (V)
Disable Amplitude (V)
6 5 4 3 2 1 0 -1
570ns Enable Enable Pulse
0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1
6 5 4 3 2 1 0 -1
Output Amplitude (V)
Output Amplitude (V)
0.2 0.1 0 -0.1
Output
Time (0.25s/div)
Time (1s/div)
Figure 25. Enable Time to 10% Settling (+5V)
Figure 26. Disable Time to 10% Settling (+5V)
0.2 0.15
0.2 0.15
Phase
0.2 0.15
0.2 0.15
Phase
Differential Phase (deg)
Differential Phase (deg)
Differential Gain (%)
0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 -0.7
0.1 0.05
Differential Gain (%)
0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 -0.7
0.1 0.05 0 -0.05 -0.1
Gain
Gain
0 -0.05 -0.1
AC-Coupled into 220F RL = 150
-0.15 -0.2 0.1 0.3 0.5 0.7
AC-Coupled into 220F RL = 150
-0.15 -0.2 0.1 0.3 0.5 0.7
-0.5
-0.3
-0.1
-0.5
-0.3
-0.1
Input Amplitude (V)
Input Amplitude (V)
Figure 27. Differential Gain and Phase (5V)
Figure 28. Differential Gain and Phase (2.5V)
100
120
Input Voltage Noise (nV/Hz)
80 70 60 50 40 30 20 10 0 0.001 0.01 0.1 1 10 100
PSRR and CMRR (dB)
90
100 80 60
CMRR
PSRR
40 20 0 -20 1 10 100 1k 10k 100k 1M 10M
Frequency (MHz)
Frequency (Hz)
Figure 29. Input Voltage Noise (+5V)
Figure 30. PSRR and CMRR (+5V)
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Application Information
Driving Capacitive Loads
The Frequency Response vs. C L Figure 7 on page 8, illustrates the response of the FHP3131. A small series resistance (Rs) at the output of the amplifier, illustrated in Figure 31, improves stability and settling performance. Rs values in the Frequency Response vs. C L figure were chosen to achieve maximum bandwidth with less than 1dB of peaking. For maximum flatness, use a larger Rs.
Output Current (V)
6 4 2 0 -2 -4 -6 -0.045 -0.030 -0.015
+ Rg Rf
Rs CL RL
0
0.015
0.030
0.045
Output Voltage (V)
Figure 32. Output Current vs. Output Voltage
Power Dissipation
The maximum internal power dissipation allowed is directly related to the maximum junction temperature. If the maximum junction temperature exceeds 150C for an extended time, device failure may occur. While the FHP3131 is short-circuit protected, this may not guarantee that the maximum junction temperature (+150C) is not exceeded under all conditions. RMS Power Dissipation can be calculated using the following equation: Power Dissipation = Is * (Vs+ - Vs-) + (Vs+ - VOUT(RMS)) * IOUT(RMS) EQ. 1 where Is is the supply current, Vs+ is the positive supply pin voltage, Vs- is the negative supply pin voltage, VOUT(RMS) is the RMS output voltage, and IOUT(RMS) is the RMS output current delivered to the load. Follow the maximum power derating curves shown in Figure 33 below to ensure proper operation.
Maximum Power Dissipation (W)
0.7 0.6 0.5 0.4 0.3
MicroPak-6 SOT23-6
Figure 31. Typical Topology for Driving Capactive Loads
Enable/Disable Function
The FAN3131 offers an active-low disable pin that can be used to lower its supply current. Leave the pin floating to enable the part. Pull the disable pin to the negative supply (which is ground in a single-supply application) to disable the output. VON and VOFF thresholds are listed in the table below. During the disable condition, the nominal supply current drops to below 33A and the output is at high impedance with about 2.8pF capacitance.
At 2.7V
VON Vs-1.1 VOFF Vs-1.75
At 5V
VON Vs-1.2 VOFF Vs-1.9
At 5V
VON Vs-1.4 VOFF Vs-2.9
5V Drive Capability
Figure 32 illustrates the drive capability of the FHP3131 during 5V supply voltage operation. The two examples below demonstrate the use of this graph: 1. To adequately drive 2Vpp into a 150 ground-centered load, the FHP3131 must supply 6.67mA of output current. From the graph, the points created by (-6.7mA, -1V) and (+6.7mA, +1V) both lie within the linear region of the curve. So, the FHP3131 can drive 2Vpp into a 150 ground-centered load. 2. To adequately drive 5Vpp into a 100 load, the FHP3131 must supply 25mA of output current. From the graph, the point created by (+25mA, +2.5V) lies within the linear region of the curve; however, the point created by (-25mA, -2.5V) does not. So, the FHP3131 is not capable of driving 5Vpp into a 100 ground-centered load at 5V.
0.2 0.1 0 -40 -20 0 20 40 60 80
Ambient Temperature (C)
Figure 33. Maximum Power Derating
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
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FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Overdrive Recovery
For an amplifier, an overdrive condition occurs when the output and/or input ranges are exceeded. The recovery time varies based on whether the input or output is overdriven and by how much the ranges are exceeded. The FHP3131 typically recovers in less than 25ns from an overdrive condition. Figure 34 shows the FHP3131 in an overdriven condition.
5.0 4.0
Vs = 5V G=5 RL = 1k VIN = 1.5Vpp
Output
Amplitude (V)
3.0 2.0 1.0 0 -1.0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Input
Time (s)
Figure 34. Overdrive Recovery
Layout Considerations
General layout and supply bypassing play major roles in high-frequency performance. Fairchild has evaluation boards to guide high-frequency layout and aid device testing and characterization. Follow the guidelines below as a basis for high-frequency layout: Include 6.8F and 0.01F ceramic capacitors. Place the 6.8F capacitor within 0.75 inches of the power pin. Place the 0.01F capacitor within 0.1 inches of the power pin. Remove the ground plane under and around the part, especially near the input and output pins, to reduce parasitic capacitance. Minimize all trace lengths to reduce series inductances. Refer to the evaluation board layouts shown in Figures 36-39 for more information.
Evaluation Board Schematic
Evaluation Board Information
The following evaluation boards are available to aid testing and layout of these devices: Figure 35. KEB002/KEB029 Schematic
Evaluation Board
KEB002 KEB029
Products
FHP3131IS6X FHP3131IL6X
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
www.fairchildsemi.com 13
FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Evaluation Board Layouts
Figure 36. KEB002 (Top-side)
Figure 38. KEB029 (Top-side)
Figure 37. KEB002 (Bottom-side)
Figure 39. KEB029 (Bottom-side)
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
www.fairchildsemi.com 14
FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Mechanical Dimensions
C D
2.9 1.9
0.15 C A-B
2X
SYMM C L
(0.95) D (1.00MIN)
1.4
(0.95)
A
C
D
1.6
2.8
(2.60) (0.70MIN)
0.15 C D
2X
PIN 1 INDEX AREA
0.15 C
0.95
2X 3 TIPS
B
2X 0.3-0.5
0.20 C A-B D
(1.90)
LAND PATTERN RECOMMENDATION
SEE DETAIL A 1.45 MAX
1.30 0.95
C 0.15 0.05 6X 0.10 C NOTES:
0.20 0.08
R0.10MIN
GAGE PLANE A. THIS PACKAGE CONFORMS TO JEDEC MO-178, VARIATION AB. B. ALL DIMENSIONS ARE IN MILLIMETERS. C. DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. D. DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. E. DIMENSIONS AND TOLERANCING AS PER ASME Y14.5M-1994
R0.10MIN
0.25 8 0 0.55 0.35 SEATING PLANE 0.60 REF
MA06EREVA
DETAIL A
SCALE: 2:1
Figure 40. 6-Lead SOT23 Package
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
www.fairchildsemi.com 15
FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
Mechanical Dimensions
2X 0.05 C 1.45 B 2X 0.05 C (1)
1.00
(0.49) 5X (0.75) (0.52) 1X (0.30) 6X RECOMMENED LAND PATTERN 0.05 C 0.45 0.35
TOP VIEW 0.55MAX 0.05 C 0.05 0.00 C 0.25 0.15 6X 0.10 0.05
A
PIN 1
0.10 0.00 6X CBA C
DETAIL A
1.0
0.40 0.30
0.35 5X 0.25 0.40 5X 0.30 (0.05) 6X 0.5 BOTTOM VIEW (0.13) 4X
0.075 X 45 CHAMFER
DETAIL A PIN 1 TERMINAL
Notes:
1. CONFORMS TO JEDEC STANDARD M0-252 VARIATION UAAD 2. DIMENSIONS ARE IN MILLIMETERS 3. DRAWING CONFORMS TO ASME Y14.5M-1994
MAC06AREVC
Figure 41. 6-Lead MicroPakTM Package
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
www.fairchildsemi.com 16
FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier
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DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD'S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Preliminary Product Status Formative or In Design First Production Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only.
Rev. I23
2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
No Identification Needed
Full Production
Obsolete
Not In Production
(c) 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2
www.fairchildsemi.com 17

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