ISL84581_14 Datasheet, PDF (1/15 Pages) Intersil Corporation – Low-Voltage, Single and Dual Supply,8-to-1 Multiplexer

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Data Sheet
April 13, 2009
ISL84581
FN6416.3
Low-Voltage, Single and Dual Supply,
8-to-1 Multiplexer
The Intersil ISL84581 device contains precision,
bidirectional, analog switches configured as an 8-to-1
multiplexer/demultiplexer. It was designed to operate from a
single +2V to +12V single supply or from dual ±2V to ±6V
supplies. The device has an inhibit pin to simultaneously
open all signal paths.
The ISL84581 has an ON-resistance of 39Ω with a dual ±5V
supply and 125Ω with a single +3.3V supply. Each switch
can handle rail-to-rail analog signals. The off-leakage current
is only 0.02nA at +25°C or 0.2nA 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 ISL84581 is a single 8-to-1 multiplexer device. Table 1
summarizes the performance of the part.
TABLE 1. FEATURES AT A GLANCE
CONFIGURATION
SINGLE 8:1 MUX
±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
39Ω
32ns/18ns
32Ω
23ns/15ns
65Ω
38ns/19ns
125Ω
70ns/32ns
16 Ld TSSOP, 16 Ld QSOP
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 . . . . . . . . . . . 50Ω
• ON-Resistance (r_ON) Max, V_S = +3V. . . . . . . . . . . . 155Ω
• r_ON Matching Between Channels, V_S = ±5V . . . . . . . . . <2Ω
• 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 (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
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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