1
FN6055.1
ISL43841
Low-Voltage, Single and Dual Supply,
Dual 4 to 1 Multiplexer Analog Switch with
Latch
The Intersil ISL43841 device is a precision, bidirectional,
analog switches configured as a a dual 4 channel multiplexer/
demultiplexer designed to operate from a single +2V to +12V
supply or from a
2V to 6V supply. The device 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 0.1nA at +25
o
C or
2.5nA at +85
o
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 ISL43841 is a dual 4 to 1 multiplexer device. Table 1
summarizes the performance of this part.
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”
Features
• Fully 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
) Max, V
S
= +3V . . . . . . . . . . . 155
•R
ON
Matching Between Channels, V
S
= 5V . . . . . . . . <2
• Low Charge Injection, V
S
= 5V . . . . . . . . . . . . . 1pC (Max)
• 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
• Guaranteed Break-Before-Make
• TTL, CMOS Compatible
• Pb-free available
Applications
• 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
TABLE 1. FEATURES AT A GLANCE
CONFIGURATION DUAL 4:1 MUX
5V R
ON
39
5V t
ON
/t
OFF
32ns/18ns
12V R
ON
32
12V t
ON
/t
OFF
23ns/15ns
5V R
ON
65
5V t
ON
/t
OFF
38ns/19ns
3.3V R
ON
125
3.3V t
ON
/t
OFF
70ns/32ns
Package 20 Ld 4x4 QFN
Data Sheet August 2004
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003, 2004. All Rights Reserved
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