DATASHEET
ISL43840
Low-Voltage, Single and Dual Supply, Dual 4 to 1 Multiplexer Analog Switch with
Enable
The Intersil ISL43840 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 п‚±2V to п‚±6V supply. The device has two
enable bar pins to simultaneously open all signal paths of
bank A and B.
ON resistance of 39пЃ— with a п‚±5V supply and 125пЃ— with a
+3.3V supply. Each switch can handle rail to rail analog
signals. The off-leakage current is only .01nA at +25В°C or
2.5nA at +85В°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 п‚±5V supplies.
The ISL43840 is a dual 4 to 1 multiplexer device. Table 1
summarizes the performance of this part.
TABLE 1. FEATURES AT A GLANCE
CONFIGURATION DUAL 4:1 MUX Features Fully Specified at 3.3V, 5V, п‚±5V, and 12V Supplies for 10%
Tolerances ON Resistance (RON) Max, VS = п‚±4.5V . 50пЃ— ON Resistance (RON) Max, VS = +3V . 155пЃ— RON Matching Between Channels, VS = п‚±5V <2пЃ—пЂ Low Charge Injection, VS = п‚±5V . 1pC (Max) Single Supply Operation . +2V to +12V Dual Supply Operation . п‚±2V to п‚±6V Fast Switching Action (VS = +5V)
-tON 38ns …