ISL43231

® ISL43231 Data Sheet September 2003 FN6054 Low-Voltage, Single and Dual Supply, Triple SPDT Analog Switch The Intersil ISL43231 device is a precision, bidirectional, analog switches configured as a a triple single pole/double throw (SPDT) switch, designed to operate from a single +2V to +12V supply or from a ±2V to ±6V supply. The device has an inhibit and inhibit bar pin to simultaneously open all signal paths. The device also has a latch bar pin to lock in the last switch address. ON resistance of 39Ω with a ±5V supply and 125Ω with a +3.3V supply. Each switch can handle rail to rail analog signals. The off-leakage current is only 0.1nA at +25oC or 2.5nA at +85oC. 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 ISL43231 is a committed triple SPDT, which is perfect for use in 2-to-1 multiplexer applications. Table 1 summarizes the performance of this part. TABLE 1. FEATURES AT A GLANCE CONFIGURATION ±5V RON ±5V tON/tOFF 12V RON 12V tON/tOFF 5V RON 5V tON/tOFF 3.3V RON 3.3V tON/tOFF Package TRIPLE SPDT 39Ω 32ns/18ns 32Ω 23ns/15ns 65Ω 38ns/19ns 125Ω 70ns/32ns 20 Ld 4x4 QFN 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...