The ADG774A is a low voltage, 400 MHz, quad 2:1 mux with 3 ns switching time. The CMOS process provides low power dissipation yet offers high switching speed and low on resistance. The on resistance variation is typically less than 0.5 Ω over the input range.
The ADG774A is a monolithic CMOS quad 2:1 multiplexer/demultiplexer offering high‑speed switching, low insertion loss and flat on‑resistance across the full analog input range. It operates from a single 3 V or 5 V supply and is TTL/CMOS compatible, making it suitable for high‑speed data‑signal routing.
The datasheet provides detailed specifications, pin configurations for both QSSOP and LFCSP packages, typical performance curves (on‑resistance, leakage current, crosstalk, isolation), absolute maximum ratings, and ordering information. It also includes a functional block diagram and truth table for control logic.
| Bandwidth | >400 MHz |
|---|---|
| On‑Resistance (typical) | 2.2 Ω |
| Supply Voltage | Single 3 V or 5 V |
| Source Off Leakage Current | +0.001 nA typ |
| Input High Voltage | 2.0 V min |
| Off Isolation | -65 dB @ 10 MHz (typ) |
| Channel‑to‑Channel Crosstalk | -70 dB @ 10 MHz (typ) |
| Turn‑On Switching Time (ton) | 6 ns typ |
| Turn‑Off Switching Time (toff) | 3 ns typ |
| Operating Temperature Range (Industrial) | -40 °C to +85 °C |
The ADG774A provides a bandwidth greater than 400 MHz.
The typical on‑resistance is 2.2 Ω.
It operates from a single 3 V or 5 V supply.
Off‑isolation is typically –65 dB at 10 MHz.