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ROHM's Selection Operational Amplifier/Comparator Series
Operational Amplifiers: High Speed
BA3472F,BA3472FV,BA3472FVM
No.09049EBT01
Description General-purpose BA3472 family integrate two Independent Op-amps and phase compensation capacitors on a single chip and have some features of high-gain, low power consumption, and wide operating voltage range of +3[V]+36[V](single power supply). Especially, characteristics are high slew rate and high unity gain frequency. General-purpose Dual BA3472F,BA3472FV,BA3472FVM
Characteristics 1) Operable with a single power supply 2) Wide operating supply voltage 3.0[V]36.0[V](single supply) 1.5[V]18.0[V](split supply) 3) Standard Op-Amp. Pin-assignments 4) Internal phase compensation 5) High slew rate10[V/s] 6) Unity gain frequency4[MHz] 7) High open loop voltage gain 8) Internal ESD protection Human body model (HBM) 5000[V](Typ.) 9) Operable low input voltage around GND level 10) Wide output voltage range VEE+0.3[V]VCC-1.0[V](Typ.) with VCC-VEE=30[V] Pin Assignment
SSOP-B14
VQFN16
OUT1 -IN1 +IN1 VEE
1 2 3 4
CH2 CH1
8 7
VCC OUT2 -IN2 +IN2
6 5
SOP8 BA3472F
SSOP-B8 BA3472FV
MSOP8 BA3472FVM
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1/9
2009.11 - Rev.B
BA3472F,BA3472FV,BA3472FVM
Absolute Maximum Ratings (Ta=25[]) Rating Parameter Supply Voltage Differential Input Voltage
(*1)
Technical Note
Symbol BA3472F,BA3472FV,BA3472FVM VCC-VEE Vid Vicm Topr Tstg Tjmax +36 +36 VEE-0.3 VCC -40+85 -55+150 +150
Unit V V V
Input Common-mode Voltage Range Operating Temperature Range Storage Temperature Range Maximum Junction Temperature
Note absolute maximum rating item indicates the condition which must not be exceeded. Application if voltage in excess of absolute maximum rating or use out of absolute maximum rated temperature environment may cause deterioration of characteristics. (*1) The voltage difference between inverting input and non-inverting input is the differential input voltage. Then input terminal voltage is set to more than VEE.
Electric Characteristics Unless otherwise specifiedVCC=+15[V], VEE=-15[V], Ta=25[] Guaranteed limit Temperature Parameter Symbol range Min. Typ. Max. Input Offset Voltage (*2) Input Offset Current (*2) Input Bias Current Supply Current High Level Output Voltage
(*2)
Unit
Condition Vicm=0[V],VOUT=0[V]
1 1.5 6 100 4 4 14 0.1 -14.7 100 97 97 30
10 mV 10 75 500 5.5 0.3 -14.3 -13.5 VCC-2.0 dB V dB dB V V nA nA
Vio Iio Ib ICC VOH
25 25 25 25 25 3.7 13.7 13.5 -
VCC=5[V],VEE=0[V], Vicm=0[V],VOUT=VCC/2 Vicm=0[V],VOUT=0[V] Vicm=0[V],VOUT=0[V] VCC=5[V],RL=2[k] RL=10[k] RL=2[k] VCC=5[V],RL=2[k] RL=10[k] RL=2[k] RL2[k],VOUT=10 [V] VCC=5[V],VEE=0[V], VOUT=VCC/2 Vicm=0[V],VOUT=0[V] Vicm=0[V],VOUT=0[V]
mA RL=
Low Level Output Voltage Large Single Voltage Gain Input Common-mode Voltage Range Common-mode Rejection Ratio Power Supply Rejection Ratio Output Source Current (*3)
VOL AV Vicm CMRR PSRR IOH
25 25 25 25 25 25
80 0 60 60 10
Output Sink Current (*3) Unity Gain Frequency Slew Rate Channel Separation
IOL ft SR CS
25 25 25 25
20 -
30 4 10 120
-
VIN+=1[V],VIN-=0[V], mA VOUT=0[V], Only 1ch is short circuit VIN+=0[V],VIN-=1[V], mA VOUT=5[V], Only 1ch is short circuit MHz V/s dB Av=1,Vin=-10 to +10[V],RL=2[k]
(*2) Absolute value (*3) Under high temperatures, please consider the power dissipation when selecting the output current. When the output terminal is continuously shorted the output current reduces the internal temperature by flushing.
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2/9
2009.11 - Rev.B
BA3472F,BA3472FV,BA3472FVM
Reference Data
Technical Note
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3/9
2009.11 - Rev.B
BA3472F,BA3472FV,BA3472FVM
Technical Note
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4/9
2009.11 - Rev.B
BA3472F,BA3472FV,BA3472FVM
Schematic diagram
VCC
Technical Note
VIN-
VOUT
VIN+
VEE
Fig24. Schematic diagram (one channel only) Test circuit1 NULL method VCC,VEE,EK,Vicm Unit : [V] Parameter Input Offset Voltage Input Offset Current Input Bias Current Large Signal Voltage Gain Common-mode Rejection Ratio (Input Common-mode Voltage Range) Power Supply Rejection Ratio Calculation 1. Input Offset Voltage (Vio)
| VF1 | Vio = 1 + Rf / Rs [V]
C2 0.1[F]
VF VF1 VF2 VF3 VF4 VF5 VF6 VF7 VF8 VF9 VF10
S1 ON OFF OFF ON ON ON ON
S2 ON OFF ON OFF ON ON ON
S3 OFF OFF OFF ON OFF OFF
BA3472 family VCC 15 15 15 15 15 15 15 2 18 VEE -15 -15 -15 -15 -15 -15 -15 -2 -18 EK 0 0 0 10 -10 0 0 0 0 Vicm 0 0 0 0 0 -15 13 0 0
Calculation 1 2 3 4 5 6
2. Input Offset Current (Iio)
| VF2VF1 | Iio = Ri x(1 + Rf / Rs) [A]
Rf 50[k] RK S1 Rs 50[] 50[] Ri 10[k] 10[k] Ri S2 VEE RK 500[k] DUT VCC EK 500[k]
C1 0.1[F] +15[V] NULL
3. Input Bias Current (Ib)
| VF4VF3 | Ib = 2xRix (1 + Rf / Rs) [A]
4. Large Signal Voltage Gain (Av)
Av = 20xLog EKx(1+Rf /Rs) |VF5-VF6| [dB]
Vicm
Rs
S3 C3 1000[pF] -15[V]
V VF
RL
5. Common-mode Rejection Ratio (CMRR)
CMRR = 20xLog Vicmx(1+Rf /Rs) |VF8-VF7|
Fig.25 Test circuit 1 (one channel only)
[dB]
6. Power Supply Rejection Ratio (PSRR)
PSRR = 20xLog Vccx(1+Rf /Rs) |VF10-VF9| [dB]
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5/9
2009.11 - Rev.B
BA3472F,BA3472FV,BA3472FVM
Test circuit2 switch condition Unit : [V] SW No. Supply Current High Level Output Voltage Low Level Output Voltage Output Source Current Output Sink Current Slew Rate Gain Bandwidth Product Equivalent Input Noise Voltage
SW4
Technical Note
SW 1
SW 2
SW 3
SW 4 ON
SW 5 OFF
SW 6 ON ON ON ON ON ON ON
SW 7
SW 8
SW 9
SW 10
SW 11
SW 12
SW 13
SW 14
OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON ON
OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF ON OFF OFF OFF ON ON OFF OFF ON ON OFF OFF OFF OFF OFF OFF
OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON
OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON OFF OFF
OFF OFF OFF
OFF OFF OFF
OFF OFF OFF OFF OFF OFF OFF OFF ON OFF OFF OFF
OFF OFF
OFF OFF OFF
OFF OFF OFF OFF
voltage
SW5
R2
VH
VCC
A
VL
SW1 SW2 SW3 SW6 RS R1 SW7 SW8 VEE
Input Voltage Waveform voltage
SW9 SW10 SW11 SW12 SW13 SW14
time
SRV/t
VH V
A
VIN-
VIN+
RL
CL
V
V
VOUT
VL t
time Output Voltage Waveform
Fig26. Test circuit2 (one channel only) Test circuit3 Channel separation
VCC
Fig27. Slew rate input output wave
VCC
R1//R2
R1//R2
OTHER CH
VEE
VEE
R1 VIN
R2
V VOUT1
R1
R2
V
=0.5[Vrms]
VOUT2
CS20xlog
100xVOUT1 VOUT2
Fig28. Test circuit3
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6/9
2009.11 - Rev.B
BA3472F,BA3472FV,BA3472FVM
Notes for use 1)Unused circuits When there are unused circuits it is recommended that they are connected as in Fig.29, setting the non-inverting input terminal to a potential within input common-mode voltage range (Vicm). 2) Input terminal voltage Applying GND + 36V to the input terminal is possible without causing deterioration of the electrical characteristics or destruction, irrespective of the supply voltage. However, this does not ensure normal circuit operation. Please note that the circuit operates normally only when the input voltage is within the common mode input voltage range of the electric characteristics. 3) Power supply (single / dual) The op-amp operates when the specified voltage supplied is between VCC and VEE. Therefore, the single supply op-amp can be used as dual supply op-amp as well.
Please keep this potential in Vicm
Technical Note
VCC

VEE
Fig.29Unused circuit example
1
4) Power dissipation Pd Using the unit in excess of the rated power dissipation may cause deterioration in electrical characteristics due to a rise in chip temperature, including reduced current capability. Therefore, please take into consideration the power dissipation (Pd) under actual operating conditions and apply a sufficient margin in thermal design. Refer to the thermal derating curves for more information. 5) Short-circuit between pins and erroneous mounting Incorrect mounting may damage the IC. In addition, the presence of foreign particles between the outputs, the output and the power supply, or the output and GND may result in IC destruction. 6) Operation in a strong electromagnetic field Operation in a strong electromagnetic field may cause malfunctions. 7) Radiation This IC is not designed to withstand radiation. 8) IC handing Applying mechanical stress to the IC by deflecting or bending the board may cause fluctuations in the electrical characteristics due to piezoelectric (piezo) effects. 9) Board inspection Connecting a capacitor to a pin with low impedance may stress the IC. Therefore, discharging the capacitor after every process is recommended. In addition, when attaching and detaching the jig during the inspection phase, ensure that the power is turned OFF before inspection and removal . Furthermore, please take measures against ESD in the assembly process as well as during transportation and storage. 10)Output capacitor Discharge of the external output capacitor to VCC is possible via internal parasitic elements when VCC is shorted to VEE, causing damage to the internal circuitry due to thermal stress. Therefore, when using this IC in circuits where oscillation due to output capacitive load does not occur, such as in voltage comparators, use an output capacitor with a capacitance less than 0.1F.
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7/9
2009.11 - Rev.B
BA3472F,BA3472FV,BA3472FVM
Ordering part number
Technical Note
B
A
3
Part No.
4
7
2
F
V
-
E
2
Part No.
Package F: SOP8 FV: SSOP-B8 FVM: MSOP8
Packaging and forming specification E2: Embossed tape and reel (SOP8/SSOP-B8) TR: Embossed tape and reel (MSOP8)
SOP8

5.00.2 (MAX 5.35 include BURR)
8 7 6 5
+6 4 -4
Tape Quantity
0.90.15 0.3MIN
Embossed carrier tape 2500pcs E2
The direction is the 1pin of product is at the upper left when you hold
6.20.3
4.40.2
Direction of feed
( reel on the left hand and you pull out the tape on the right hand
)
12
3
4
0.595
1.50.1
+0.1 0.17 -0.05 S
0.11
1.27 0.420.1
1pin
(Unit : mm)
Direction of feed
Reel
Order quantity needs to be multiple of the minimum quantity.
SSOP-B8

3.0 0.2 (MAX 3.35 include BURR)
876 5
Tape Quantity
0.3MIN
Embossed carrier tape 2500pcs E2
The direction is the 1pin of product is at the upper left when you hold
6.40.3
4.40.2
Direction of feed
( reel on the left hand and you pull out the tape on the right hand
)
1234
1.150.1
0.15 0.1 S 0.1 +0.06 0.22 -0.04 0.08
M
0.1
(0.52)
0.65
1pin
(Unit : mm)
Direction of feed
Reel
Order quantity needs to be multiple of the minimum quantity.
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8/9
2009.11 - Rev.B
BA3472F,BA3472FV,BA3472FVM
Technical Note
MSOP8

2.90.1 (MAX 3.25 include BURR)
8765
Tape
0.290.15 0.60.2
+6 4 -4
Embossed carrier tape 3000pcs TR
The direction is the 1pin of product is at the upper right when you hold
Quantity Direction of feed
4.00.2
2.80.1
( reel on the left hand and you pull out the tape on the right hand
1pin
)
1 234
1PIN MARK 0.475 S +0.05 0.22 -0.04 0.08 S 0.65
+0.05 0.145 -0.03
0.9MAX 0.750.05
0.080.05
Direction of feed
(Unit : mm)
Reel
Order quantity needs to be multiple of the minimum quantity.
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9/9
2009.11 - Rev.B
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law.
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