ISL84581

Low-Voltage, Single and Dual Supply, 8 Multiplexer to 1 Multiplexer

OVERVIEW

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.

KEY FEATURES

  • Fully Specified at 3.3V, 5V, ±5V, and 12V Supplies for 10% Tolerances
  • ON-Resistance (rON) Max, VS = ±4.5V 50Ω
  • ON-Resistance (rON) Max, VS = +3V 155Ω
  • rON Matching Between Channels, VS = ±5V <2Ω
  • Low Charge Injection, VS = ±5V 1pC (Max)
  • Single Supply Operation +2V to +12V
  • Dual Supply Operation ±2V to ±6V
  • Fast Switching Action (VS = +5V)
  • tON 38ns
  • tOFF 19ns
  • Guaranteed Max Off-leakage 2.5nA
  • Guaranteed Break-Before-Make
  • TTL, CMOS Compatible
  • Pb-Free (RoHS Compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
ISL84581
Basic Information
Production Status
Mass Production
# of Devices/ Channels
8
Switch or MUX
MUX
Configuration
1 x 8:1
Type of Switch
N/A
RDS(ON)
39 Ω
Leakage
2.5 nA
Source Cap (pf)
3
IS
7 µA
VCC (Single) (min) (V)
2
VCC (Single) (max) (V)
12
Qualification Level
Standard
TON (ns)
38
TOFF (ns)
19
Charge Injection (pC)
1
Drain Capacitance
26 pF
Dual Supply Voltage (Min)
±2 V
Dual Supply Voltage (Max)
±6 V
Supply Voltage Vcc Range (V)
+2 to +12, ±2 to ±6
Can Sample
YES
Temperature Range
-40 to +85

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