ADG3247 is a 2.5 V or 3.3 V 16-bit, 2-port digital switch. Designed in Analog Devices' low voltage CMOS process, it provides low power dissipation but achieves high switching speed and very low on resistance, enabling its use in a variety of high performance applications.
The ADG3247 from Analog Devices is a dual‑8‑bit digital bus switch that can operate from a 2.5 V or 3.3 V supply. It provides bidirectional level translation between 3.3 V, 2.5 V and 1.8 V domains, making it suitable for mixed‑voltage systems, hot‑plug, and bus‑isolation applications.
The device is offered in a 40‑lead LFCSP package and a 38‑lead TSSOP package, delivering a typical propagation delay of 0.225 ns, a maximum data rate of 1.244 Gbps, and on‑resistance as low as 4.5 Ω. It includes bus‑enable control pins for low‑capacitance bus isolation and supports hot‑swap scenarios.
| Supply Voltage Range (VCC) | 2.3 V to 3.6 V |
|---|---|
| Input High Voltage (VINH) | 2.0 V (VCC = 2.7 V‑3.6 V) |
| Input Low Voltage (VINL) | 0.8 V (VCC = 2.7 V‑3.6 V) |
| Propagation Delay | 0.225 ns |
| Maximum Data Rate | 1.244 Gbps |
It can translate 3.3 V to 2.5 V, 3.3 V to 1.8 V, 2.5 V to 1.8 V, and bidirectionally between 3.3 V and 2.5 V.
The typical propagation delay is 0.225 ns (225 ps).
It is offered in a 40‑lead LFCSP package and a 38‑lead TSSOP package.