The ISL43840 is a low-voltage, single and dual supply, dual 4 to 1 multiplexer analog switch with enable function. Produced by Intersil, this product is designed to operate from a single +2V to +12V supply or from a ±2V to ±6V supply. Each switch can handle rail to rail analog signals. It features low off-leakage current and a wide range of digital input logic thresholds, making it suitable for various application scenarios.
The Intersil ISL43840 is a precision, bidirectional analog switch configured as a dual 4 channel multiplexer/demultiplexer. It is designed to operate from a single +2V to +12V supply or from a +2V to +6V dual supply configuration.
The device features an ON resistance of 39Ω with a +5V supply and 125Ω with a +3.3V supply, capable of handling rail-to-rail analog signals. It includes two enable pins to simultaneously open all signal paths for both banks A and B.
| Configuration | Dual 4:1 MUX |
|---|---|
| ON Resistance (Ron) @ +5V | 39Ω Max |
| ON Resistance (Ron) @ +12V | 320Ω Max |
| Package Type | 20 Ld 4x4 QFN |
| Single Supply Operation Range | +2V to +12V |
The ON resistance is 39Ω with a +5V supply.
Yes, each switch can handle rail to rail analog signals.
The guaranteed max off-leakage current is 0.01nA at +25°C.