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FSA3357 Low Voltage SP3T Analog Switch (3:1 Multiplexer/Demultiplexer)
December 2002 Revised December 2002
FSA3357 Low Voltage SP3T Analog Switch (3:1 Multiplexer/Demultiplexer)
General Description
The FSA3357 is a high performance, single-pole/triplethrow (SP3T) Analog Switch or 3:1 Multiplexer/Demultiplexer. The device is fabricated with advanced sub-micron CMOS technology to achieve high speed enable and disable times and low On Resistance. The break before make select circuitry prevents disruption of signals on the B0, B1, or B2 Ports due to the switches temporarily being enabled during select pin switching. The device is specified to operate over the 1.65 to 5.5V VCC operating range. The control input tolerates voltages up to 5.5V independent of the VCC operating range.
Features
s Useful in both analog and digital applications s Space saving US8 8-lead surface mount package s Low On Resistance; < 9 on typ @ 3.3V VCC s Broad VCC operating range; 1.65V to 5.5V s Rail-to-Rail signal handling s Power down high impedance control input s Overvoltage tolerance of control input to 7.0V s Break before make enable circuitry s 250 MHz - 3dB bandwidth
Ordering Code:
Product Order Number FSA3357K8X Package MAB08A Code A357 Package Description Supplied As Number Top Mark 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel
Analog Symbol
Connection Diagram
(Top View)
Function Table
S1 0 1 0 1 S2 0 0 1 1 Function No Connection B0 Connected to A B1 Connected to A B2 Connected to A
Pin Descriptions
Pin Names A1 , B0 , B1 , B2 S1 , S2 Description Data Ports Control Input
(c) 2002 Fairchild Semiconductor Corporation
DS500805
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FSA3357
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) DC Switch Voltage (VS) (Note 2) DC Input Voltage (VIN) (Note 2) DC Input Diode Current (IIK) @ (IIK) VIN < 0V DC Output Current (IOUT) DC VCC or Ground Current (ICC/IGND) Storage Temperature Range (TSTG) Junction Temperature under Bias (TJ) Junction Lead Temperature (TL) (Soldering, 10 seconds) Power Dissipation (PD) @ +85C 260C 180 mW
-0.5V to +7.0V -0.5V to VCC +0.5V -0.5V to +7.0V -50 mA
128 mA
Recommended Operating Conditions (Note 3)
Supply Voltage Operating (VCC) Control Input Voltage (VIN) Switch Input Voltage (VIN) Output Voltage (VOUT) Operating Temperature (TA) Input Rise and Fall Time (tr, tf) Control Input VCC = 2.3V - 3.6V Control Input VCC = 4.5V - 5.5V Thermal Resistance (JA) 0 ns/V to 10 ns/V 0 ns/V to 5 ns/V 250C/W 1.65V to 5.5V 0V to VCC 0V to VCC 0V to VCC
-40C to +85C
100 mA -65C to +150C
150C
Note 1: Absolute maximum ratings are DC values beyond which the device may be damaged or have its useful life impaired. The datasheet specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation outside datasheet specifications. Note 2: The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. Note 3: Control inputs must be held HIGH or LOW, they must not float.
DC Electrical Characteristics
Symbol VIH VIL IIN IOFF RON Parameter HIGH Level Input Voltage LOW Level Input Voltage Input Leakage Current Switch On Resistance (Note 4) 3.0 2.3 1.65 ICC ASR RON Quiescent Supply Current All Channels ON or OFF Analog Signal Range On Resistance Match Between Channels (Note 4)(Note 5)(Note 6) Rflat On Resistance Flatness (Note 4)(Note 5)(Note 7) VCC (V) 2.3 - 5.5 1.65 - 1.95 2.3 - 5.5 0 - 5.5 4.5 5.0 6.0 7.0 6.5 9.0 8.0 11.0 10.0 17.0 5.5 VCC 4.5 3.0 2.3 1.65 5.0 3.3 2.5 1.8 0.0 0.15 0.22 0.31 0.62 6.0 12.0 40.0 140.0 Min 0.7 VCC 0.25 VCC 0.3 VCC 0.1 0.1 7.0 12.0 15.0 9.0 20.0 12.0 30.0 20.0 50.0 1.0 VCC 0.0 1.65 - 1.95 0.75 VCC TA = +25C Typ Max TA = -40C to +85C Min 0.75 VCC 0.7 VCC 0.25 VCC 0.3 VCC 1.0 1.0 7.0 12.0 15.0 9.0 20.0 12.0 30.0 20.0 50.0 10.0 VCC A V IA = -30 mA, VBn = 3.15 IA = -24 mA, VBn = 2.1 IA = -8 mA, VBn = 1.6 IA = -4 mA, VBn = 1.15 IA = -30 mA, 0 VBn VCC IA = -24 mA, 0 VBn VCC IA = -8 mA, 0 VBn V CC IA = -4 mA, 0 VBn V CC Max V V A A 0 VIN 5.5V 0 A, Bn VCC VIN = 0V, IO = 30 mA VIN = 2.4V, IO = -30 mA VIN = 4.5V, IO = -30 mA VIN = 0V, IO = 24 mA VIN = 3V, IO = -24 mA VIN = 0V, IO = 8 mA VIN = 2.3V, IO = -8 mA VIN = 0V, IO = 4 mA VIN = 1.65V, IO = -4 mA VIN = VCC or GND IOUT = 0 Units Conditions
OFF State Leakage Current 1.65 - 5.5
Note 4: Measured by the voltage drop between A and Bn pins at the indicated current through the switch. On Resistance is determined by the lower of the voltages on the two (A or Bn Ports). Note 5: Parameter is characterized but not tested in production. Note 6: RON = RON max - RON min measured at identical VCC, temperature and voltage levels. Note 7: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of conditions.
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FSA3357
AC Electrical Characteristics
Symbol tPHL tPLH Parameter Propagation Delay Bus to Bus (Note 8) tPZL tPZH Output Enable Time Turn on Time (A to Bn) tPLZ tPHZ Output Disable Time Turn Off Time (A Port to Bn Port) tB-M VCC (V) 1.65 - 1.95 2.3 - 2.7 3.0 - 3.6 4.5 - 5.5 1.65 - 1.95 2.3 - 2.7 3.0 - 3.6 4.5 - 5.5 1.65 - 1.95 2.3 - 2.7 3.0 - 3.6 4.5 - 5.5 Break Before Make Time 1.65 - 1.95 (Note 9) 2.3 - 2.7 3.0 - 3.6 4.5 - 5.5 Q OIRR Xtalk BW THD Charge Injection (Note 9) Off Isolation (Note 10) Crosstalk -3dB Bandwidth Total Harmonic Distortion (Note 9) 5.0 .01 % 5.0 3.3 1.65 - 5.5 1.65 - 5.5 1.65 - 5.5 5.0 3.0 2.0 1.5 3.0 2.0 1.5 0.8 0.5 0.5 0.5 0.5 3.0 2.0 -58.0 -60.0 250.0 Min TA = +25C Typ 2.0 1.1 0.7 0.4 32.0 15.0 9.5 6.5 14.0 7.2 5.1 3.7 5.0 3.0 2.0 1.5 3.0 2.0 1.5 0.8 0.5 0.5 0.5 0.5 pC dB dB MHz CL = 0.1 nF, VGEN = 0V RGEN = 0 RL = 50 f = 10MHz RL = 50 f = 10MHz RL = 50 RL = 600 0.5 VP-P f = 600 Hz to 20 KHz
Note 8: This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On Resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance). Note 9: Guaranteed by Design. Note 10: Off Isolation = 20 log10 [VA / VBn]
TA = -40C to +85C Max Min Max
Units
Conditions
Figure Number
ns
VI = OPEN
Figures 1, 2
34.0 16.5 11.0 7.0 14.5 7.8 5.5 4.0 ns VI = 2 x VCC for tPLZ VI = 0V for tPHZ Figures 1, 2 ns VI = 2 x VCC for tPZL VI = 0V for tPZH Figures 1, 2
ns
Figure 3
Figure 4 Figure 5 Figure 6 Figure 9
3
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FSA3357
Capacitance
Symbol CIN CIO-B CIOA-ON
(Note 11)
Parameter Typ 2.0 3.6 14.5 Max Units pF pF pF Conditions VCC = 0V VCC = 5.0V VCC = 5.0V Figure 7 Figure 8 Figure Number
Control Pin Input Capacitance B Port Off Capacitance A Port Capacitance When Switch Is Enabled
Note 11: TA = +25C, f = 1 MHz, Capacitance is characterized but not tested in production.
AC Loading and Waveforms
Note: Input driven by 50 source terminated in 50 Note: CL includes load and stray capacitance Note: Input PRR = 1.0 MHz; tW = 500 ns
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
FIGURE 3. Break Before Make Interval Timing
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FSA3357
AC Loading and Waveforms
(Continued)
FIGURE 4. Charge Injection Test
FIGURE 5. Off Isolation
FIGURE 6. Crosstalk
FIGURE 7. Channel Off Capacitance
FIGURE 8. Channel On Capacitance
FIGURE 9. Bandwidth
5
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FSA3357
Tape and Reel Specification
TAPE FORMAT Package Designator K8X Tape Section Leader (Start End) Carrier Trailer (Hub End) TAPE DIMENSIONS inches (millimeters) Number Cavities 125 (typ) 250 75 (typ) Cavity Status Empty Filled Empty Cover Tape Status Sealed Sealed Sealed
REEL DIMENSIONS inches (millimeters)
Tape Size 8 mm
A 7.0 (177.8)
B 0.059 (1.50)
C 0.512 (13.00)
D 0.795 (20.20)
N 2.165 (55.00)
W1 0.331 + 0.059/-0.000 (8.40 + 1.50/-0.00)
W2 0.567 (14.40)
W3 W1 + 0.078/-0.039 (W1 + 2.00/-1.00)
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FSA3357 Low Voltage SP3T Analog Switch (3:1 Multiplexer/Demultiplexer)
Physical Dimensions inches (millimeters) unless otherwise noted
8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide Package Number MAB08A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. 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 THE PRESIDENT 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 to the user. 7 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. www.fairchildsemi.com
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