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FSA2257 Low RON Low Voltage Dual SPDT Bi-Directional Analog Switch
April 2004 Revised December 2004
FSA2257 Low RON Low Voltage Dual SPDT Bi-Directional Analog Switch
General Description
The FSA2257 is a high performance bi-directional dual Single Pole Double Throw (SPDT) analog switch.This switch can be configured as either a multiplexer or a demultiplexer by select pins. The device features ultra low RON of 1.3 maximum at 4.5V VCC and will operate over the wide VCC range of 1.65V to 5.5V. The device is fabricated with submicron CMOS technology to achieve fast switching speeds and is designed for break-before-make operation. The select input is TTL level compatible.
Features
s Maximum 1.15 ON Resistance (RON) for 4.5V supply s 0.3 max RON flatness for +5V supply s Space saving MicroPak packaging s Broad VCC operating range: 1.65V to 5.5V s Fast turn-on and turn-off time s Break-before-make enable circuitry s Over-voltage tolerant TTL compatible control input
Ordering Code:
Product Order Number FSA2257L10X Package Number MAC010A Code Top Mark EP 10-Lead MicroPak, 1.6 mm x 2.1mm 5K Units on Tape and Reel Package Description Supplied As
Analog Symbols
Truth Table
Control Input(s) L H
H = HIGH Logic Level L = LOW Logic Level
Function B0 Connected to A B1 Connected to A
Pin Descriptions
Pin Names A, B0, B1 S Function Data Ports Control Input
(Top Through View)
MicroPak is a trademark of Fairchild Semiconductor Corporation.
(c) 2004 Fairchild Semiconductor Corporation
DS500884
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FSA2257
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) Switch Voltage (VS) (Note 2) Input Voltage (VIN ) (Note 2) Input Diode Current Switch Current Peak Switch Current (Pulsed at 1 ms duration, <10% Duty Cycle) Storage Temperature Range (TSTG) Maximum Junction Temperature (TJ) Lead Temperature (TL) Soldering, 10 seconds ESD Human Body Model 8000V 400 mA
-0.5V to +6.0V -0.5V to VCC + 0.5V -0.5V to +6.0V -50 mA
200 mA
Recommended Operating Conditions
Supply Voltage (VCC) Control Input Voltage (VIN) (Note 3) Switch Input Voltage (VIN) Operating Temperature (TA) 1.65V to 5.5V 0V to VCC 0V to VCC
-40C to +85C
-65C to +150C +150C +260C
Note 1: The "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The "Recommended Operating Conditions" table will define the conditions for actual device operation. Note 2: The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. Note 3: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics (All typical values are @ 25C unless otherwise specified)
Symbol VIH VIL IIN INO(OFF), INC(OFF) IA(ON) RON RON Parameter Input Voltage High Input Voltage Low Control Input Leakage OFF-Leakage Current of Port B0 and B1 ON Leakage Current of Port A Switch ON Resistance (Note 4) ON Resistance Matching Between Channels (Note 5) RFLAT(ON) ON Resistance Flatness (Note 6) ICC Quiescent Supply Current VCC (V) 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 5.5 5.5 2.7 4.5 2.7 4.5 2.7 4.5 3.6 5.5 0.06 1.4 0.2 0.1 0.1 0.3 0.5 0.5 0.4 1.0 1.0 0.12 0.15 -2.0 -4.0 2.6 0.95 2.0 4.0 4.0 1.15 -1.0 -1.0 -20.0 -40.0 TA = +25C Min Typ Max TA= -40C to +85C Min 2.0 2.4 0.6 0.8 1.0 1.0 20.0 40.0 4.3 1.3 Max V V A nA nA A VIN = 0V to VCC A = 1V, 4.5V B0 or B1 = 1V, 4.5V A = 1V, 4.5V B0 or B1 = 1V, 4.5V or Floating IOUT = 100 mA, B 0 or B1 = 1.5V IOUT = 100 mA, B 0 or B1 = 3.5V IOUT = 100 mA, B 0 or B1 = 1.5V IOUT = 100 mA, B 0 or B1 = 3.5V IOUT = 100 mA, B 0 or B1 = 0V, 0.75V, 1.5V IOUT = 100 mA, B 0 or B1 = 0V, 1V, 2V VIN = 0V or VCC, IOUT = 0V Units Conditions
Note 4: ON Resistance is determined by the voltage drop between A and B pins at the indicated current through the switch. Note 5: RON = RONmax - RONmin measured at identical VCC, temperature, and voltage. Note 6: 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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FSA2257
AC Electrical Characteristics (All typical value are @ 25C unless otherwise specified)
Symbol tON tOFF tB-M Q OIRR Xtalk BW THD Parameter Turn ON Time Turn OFF Time Break-Before-Make Time Charge Injection OFF-Isolation Crosstalk -3db Bandwidth Total Harmonic Distortion VCC (V) 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 20.0 20.0 10.0 -70.0 -70.0 -75.0 -75.0 350 350 0.002 0.002 TA = +25C Min Typ Max 50.0 35.0 20.0 15.0 1.0 1.0 TA= -40C to +85C Min Max 60.0 40.0 30.0 20.0 Units ns ns ns pC dB dB MHz % Conditions B0 or B1 = 1.5V, RL = 50, CL = 35 pF B0 or B1 = 3.0V, RL = 50, CL = 35 pF B0 or B1 = 1.5V, RL = 50, CL = 35 pF B0 or B1 = 3.0V, RL = 50, CL = 35 pF B0 or B1 = 1.5V, RL = 50, CL = 35 pF B0 or B1 = 3.0V, RL = 50, CL = 35 pF CL = 1.0 nF, VGEN = 0V, RGEN = 0 f = 1MHz, RL = 50 f = 1MHz, RL = 50 RL = 50 RL = 600, VIN = 0.5V P.P, f = 20Hz to 20kHz Figure Number Figure 1 Figure 1 Figure 2 Figure 4 Figure 3 Figure 3 Figure 6 Figure 7
Capacitance
Symbol CIN COFF CON Parameter Control Pin Input Capacitance B Port OFF Capacitance A Port ON Capacitance VCC (V) 0.0 4.5 4.5 Min TA = +25C Typ 3.5 12.0 40.0 Max TA = 40C to +85C Min Max pF pF pF f = 1MHz (see Figure 5) f = 1MHz (see Figure 5) f = 1MHz (see Figure 5) Units Conditions
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FSA2257
AC Loading and Waveforms
CL includes Fixture and Stray Capacitance
Logic Input Waveforms Inverted for Switches that have the Opposite Logic Sense
FIGURE 1. Turn-On/Turn-Off Timing
CL Includes Fixture and Stray Capacitance FIGURE 2. Break-Before-Make Timing
FIGURE 3. OFF Isolation and Crosstalk
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FSA2257
AC Loading and Waveforms
(Continued)
Q = (VOUT)(CL) FIGURE 4. Charge Injection
FIGURE 5. ON/OFF Capacitance Measurement Setup
FIGURE 6. Bandwidth
FIGURE 7. Harmonic Distortion 5 www.fairchildsemi.com
FSA2257
Tape and Reel Specification
Tape Format For Micropak 10 Package Designator L10X Tape Section Leader (Start End) Carrier Trailer (Hub End) Number Cavities 125 (typ) 5000 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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FSA2257 Low RON Low Voltage Dual SPDT Bi-Directional Analog Switch
Physical Dimensions inches (millimeters) unless otherwise noted
10-Lead MicroPak, 1.6 mm x 2.1mm Package Number MAC010A
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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