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ISL43231

Description
Low-Voltage, Single and Dual Supply, Triple SPDT Analog Switch
File Size803KB,16 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
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ISL43231 Overview

Low-Voltage, Single and Dual Supply, Triple SPDT Analog Switch

OBSOLETE PRODUCT
RECOMMENDED REPLACEMENT PART
ISL84053
DATASHEET
FN6054
Rev 3.00
Oct 28, 2010
ISL43231
Low-Voltage, Single and Dual Supply, Triple SPDT Analog Switch
The Intersil ISL43231 device is a precision, bidirectional,
analog switch configured as a a triple single pole/double throw
(SPDT) switch, designed to operate from a single +2V to
+12V supply or from a
2V to
6V supply. The device has an
inhibit and inhibit bar pin to simultaneously open all signal
paths. The device also has a latch bar pin to lock in the last
switch address.
ON-resistance of 39 with a
5V supply and 125 with a
+3.3V supply. Each switch can handle rail-to-rail analog
signals. The off-leakage current is only 2.5nA at +85°C
.
All digital inputs have 0.8V to 2.4V logic thresholds, ensuring
TTL/CMOS logic compatibility when using a single +3.3V or
+5V supply or dual
5V supplies.
The ISL43231 is a committed triple SPDT, which is perfect for
use in 2-to-1 multiplexer applications. Table 1 summarizes the
performance of this part.
TABLE 1. FEATURES AT A GLANCE
CONFIGURATION
5V
R
ON
5V
t
ON
/t
OFF
12V R
ON
12V t
ON
/t
OFF
5V R
ON
5V t
ON
/t
OFF
3.3V R
ON
3.3V t
ON
/t
OFF
Package
TRIPLE SPDT
39
32ns/18ns
32
23ns/15ns
65
38ns/19ns
125
70ns/32ns
20 Ld 4x4 QFN
Features
• Specified at 3.3V, 5V,
5V, and 12V Supplies for 10%
Tolerances
• ON-resistance (R
ON
) Max, V
S
=
4.5V . . . . . . . . . . . 50
• ON-resistance (R
ON
), V
S
= +3V . . . . . . . . . . . . . . . 135
• R
ON
Matching Between Channels, V
S
=
5V. . . . . . . . . <2
• Low Charge Injection, V
S
=
5V . . . . . . . . . . . . . . . . . 0.3pC
• Single Supply Operation. . . . . . . . . . . . . . . . . . . +2V to +12V
• Dual Supply Operation . . . . . . . . . . . . . . . . . . . . .
2V to
6V
• Fast Switching Action (V
S
= +5V)
- t
ON
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38ns
- t
OFF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19ns
• Guaranteed Max Off-leakage . . . . . . . . . . . . . . . . . . . 2.5nA
• Break-Before-Make
• TTL, CMOS Compatible
• Pb-Free (RoHS Compliant)
Applications
• Battery Powered, Handheld, and Portable Equipment
• Communications Systems
- Radios
- Telecom Infrastructure
- ADSL, VDSL Modems
• Test Equipment
- Medical Ultrasound
- Magnetic Resonance Image
- CT and PET Scanners (MRI)
- ATE
- Electrocardiograph
• Audio and Video Signal Routing
• Various Circuits
- +3V/+5V DACs and ADCs
- Sample and Hold Circuits
- Operational Amplifier Gain Switching Networks
- High Frequency Analog Switching
- High Speed Multiplexing
- Integrator Reset Circuits
Related Literature
• Technical Brief
TB363
“Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note
AN557
“Recommended Test Procedures
for Analog Switches”
• Application Note
AN520
“CMOS Analog Multiplexers and
Switches; Specifications and Application Considerations.”
• Application Note
AN1034
“Analog Switch and Multiplexer
Applications”
FN6054 Rev 3.00
Oct 28, 2010
Page 1 of 16

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