FAIRCHILD FSA2257

Revised December 2004
FSA2257
Low RON Low Voltage Dual SPDT
Bi-Directional Analog Switch
General Description
Features
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 1.3Ω
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.
■ Maximum 1.15Ω ON Resistance (RON) for 4.5V supply
■ 0.3Ω max RON flatness for +5V supply
■ Space saving MicroPak packaging
■ Broad VCC operating range: 1.65V to 5.5V
■ Fast turn-on and turn-off time
■ Break-before-make enable circuitry
■ Over-voltage tolerant TTL compatible control input
Ordering Code:
Product
Order
Package
Code
Number
Number
Top Mark
MAC010A
EP
FSA2257L10X
Package Description
10-Lead MicroPak, 1.6 mm x 2.1mm
Supplied As
5K Units on Tape and Reel
Truth Table
Analog Symbols
Control Input(s)
Function
L
B0 Connected to A
H
B1 Connected to A
H = HIGH Logic Level
L = LOW Logic Level
Pin Descriptions
Pin Names
Function
A, B0, B1
Data Ports
S
Control Input
(Top Through View)
MicroPak is a trademark of Fairchild Semiconductor Corporation.
© 2004 Fairchild Semiconductor Corporation
DS500884
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FSA2257 Low RON Low Voltage Dual SPDT Bi-Directional Analog Switch
April 2004
FSA2257
Absolute Maximum Ratings(Note 1)
Recommended Operating
Conditions
−0.5V to +6.0V
Supply Voltage (VCC)
−0.5V to VCC + 0.5V
Switch Voltage (VS) (Note 2)
Supply Voltage (VCC)
−0.5V to +6.0V
Input Voltage (VIN ) (Note 2)
1.65V to 5.5V
Control Input Voltage (VIN) (Note 3)
0V to VCC
0V to VCC
Input Diode Current
−50 mA
Switch Input Voltage (VIN)
Switch Current
200 mA
Operating Temperature (TA)
−40°C to +85°C
Peak Switch Current (Pulsed at
1 ms duration, <10% Duty Cycle)
400 mA
Storage Temperature Range (TSTG)
−65°C to +150°C
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.
+150°C
Maximum Junction Temperature (TJ)
Lead Temperature (TL)
+260°C
Soldering, 10 seconds
Note 2: The input and output negative voltage ratings may be exceeded if
the input and output diode current ratings are observed.
ESD
Note 3: Unused inputs must be held HIGH or LOW. They may not float.
Human Body Model
8000V
DC Electrical Characteristics (All typical values are @ 25°C unless otherwise specified)
Symbol
Parameter
VCC
(V)
VIH
Input Voltage High
TA = +25°C
Min
Typ
TA= −40°C to +85°C
Max
Min
2.7 to 3.6
2.0
4.5 to 5.5
2.4
Input Voltage Low
2.7 to 3.6
IIN
Control Input Leakage
2.7 to 3.6
−1.0
1.0
4.5 to 5.5
−1.0
1.0
INO(OFF),
OFF-Leakage Current
INC(OFF)
of Port B0 and B1
IA(ON)
ON Leakage Current
of Port A
RON
∆RON
0.6
ICC
0.8
V
µA
5.5
-2.0
2.0
−20.0
20.0
nA
5.5
−4.0
4.0
−40.0
40.0
nA
Switch ON Resistance
2.7
2.6
4.0
4.3
(Note 4)
4.5
0.95
1.15
1.3
ON Resistance Matching
2.7
Between Channels (Note 5)
4.5
0.06
2.7
1.4
(Note 6)
4.5
Quiescent Supply Current
RFLAT(ON) ON Resistance Flatness
Conditions
V
VIL
4.5 to 5.5
Units
Max
0.12
0.15
0.2
0.3
0.4
3.6
0.1
0.5
1.0
5.5
0.1
0.5
1.0
Ω
Ω
Ω
µA
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
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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Symbol
tON
tOFF
tB-M
Q
OIRR
Xtalk
BW
THD
VCC
Parameter
Turn ON Time
Turn OFF Time
(V)
Max
60.0
35.0
40.0
2.7 to 3.6
20.0
30.0
4.5 to 5.5
15.0
20.0
2.7 to 3.6
1.0
20.0
2.7 to 3.6
20.0
4.5 to 5.5
10.0
2.7 to 3.6
−70.0
4.5 to 5.5
−70.0
2.7 to 3.6
−75.0
4.5 to 5.5
−75.0
2.7 to 3.6
350
4.5 to 5.5
350
Total Harmonic
2.7 to 3.6
0.002
Distortion
4.5 to 5.5
0.002
−3db Bandwidth
Min
50.0
4.5 to 5.5
Crosstalk
TA= −40°C to +85°C
Max
4.5 to 5.5
Break-Before-Make
OFF-Isolation
Typ
2.7 to 3.6
Time
Charge Injection
TA = +25°C
Min
Units
ns
ns
ns
1.0
pC
Figure
Conditions
Number
B0 or B1 = 1.5V, RL = 50Ω, CL = 35 pF
B0 or B1 = 3.0V, RL = 50Ω, CL = 35 pF
B0 or B1 = 1.5V, RL = 50Ω, CL = 35 pF
B0 or B1 = 3.0V, RL = 50Ω, CL = 35 pF
B0 or B1 = 1.5V, RL = 50Ω, CL = 35 pF
B0 or B1 = 3.0V, RL = 50Ω, CL = 35 pF
CL = 1.0 nF, VGEN = 0V,
Figure 1
Figure 1
Figure 2
Figure 4
RGEN = 0Ω
dB
f = 1MHz, RL = 50Ω
Figure 3
dB
f = 1MHz, RL = 50Ω
Figure 3
RL = 50Ω
Figure 6
MHz
%
RL = 600Ω, VIN = 0.5V P.P,
Figure 7
f = 20Hz to 20kHz
Capacitance
Symbol
Parameter
TA = +25°C
VCC
(V)
Min
Typ
TA = 40°C to +85°C
Max
Min
Units
Conditions
Max
CIN
Control Pin Input Capacitance
0.0
3.5
pF
f = 1MHz (see Figure 5)
COFF
B Port OFF Capacitance
4.5
12.0
pF
f = 1MHz (see Figure 5)
CON
A Port ON Capacitance
4.5
40.0
pF
f = 1MHz (see Figure 5)
3
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FSA2257
AC Electrical Characteristics (All typical value are @ 25°C unless otherwise specified)
FSA2257
AC Loading and Waveforms
Logic Input Waveforms Inverted
for Switches that have the Opposite Logic Sense
CL includes Fixture and Stray Capacitance
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
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FSA2257
Tape and Reel Specification
Tape Format For Micropak 10
Package
Tape
Number
Cavity
Section
Cavities
Status
Status
Leader (Start End)
125 (typ)
Empty
Sealed
Designator
L10X
Cover Tape
Carrier
5000
Filled
Sealed
Trailer (Hub End)
75 (typ)
Empty
Sealed
REEL DIMENSIONS inches (millimeters)
Tape
Size
8 mm
A
B
C
D
N
W1
W2
W3
7.0
0.059
0.512
0.795
2.165
0.331 + 0.059/−0.000
0.567
W1 + 0.078/−0.039
(177.8)
(1.50)
(13.00)
(20.20)
(55.00)
(8.40 + 1.50/−0.00)
(14.40)
(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:
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.
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.
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