The ADG774A is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers with high impedance outputs. 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 voltage range.
The ADG774A is a monolithic CMOS quad 2:1 multiplexer/demultiplexer offering high‑speed data switching up to 400 MHz. It operates from a single 3 V or 5 V supply, is TTL/CMOS compatible, and is available in lead‑free 16‑lead QSSOP and 3 mm × 3 mm LFCSP packages.
The datasheet provides detailed electrical specifications, pin configurations, typical performance curves, and absolute maximum ratings. Key features include low on‑resistance (2.2 Ω typical), fast switching (tON ≈ 6 ns, tOFF ≈ 3 ns), break‑before‑make operation, and low leakage currents (≈ 0.001 nA).
| Bandwidth | >400 MHz |
|---|---|
| On‑Resistance (Ron) | 2.2 Ω typical |
| Quiescent Supply Current | 1 nA typical |
| Switching Times | tON ≈ 6 ns, tOFF ≈ 3 ns |
| Input High Voltage (Vint) | 2.0 V min |
| Input Low Voltage (Vint) | 0.8 V max |
| Break‑Before‑Make Delay | 3 ns typical |
| Off Isolation | -65 dB at 10 MHz |
| Crosstalk | -70 dB at 10 MHz |
| Lead‑Free Packages | Available |
The typical on‑resistance is 2.2 Ω.
The device switches with a typical turn‑on time of 6 ns and turn‑off time of 3 ns.
Yes, the device is offered in Pb‑free packages.