The ADG791A/ADG791G is a 2:1 multiplexer from Analog Devices that supports the I2C interface, has a bandwidth of 325MHz, low insertion loss and on resistance, and can be used in S-video RGB/YPbPr video switches, HDTVs, projection TVs, DVD-R/RW AV receivers, etc.
The ADG791A/ADG791G are monolithic CMOS devices comprising four 2:1 multiplexers/demultiplexers controllable via a standard I²C serial interface. They offer a wide 325 MHz bandwidth, ultralow power dissipation (1 nA typical quiescent current), and low on‑resistance (2.6 Ω typical) in a compact 4 mm × 4 mm 24‑lead LFCSP package. The devices operate from a single 3 V or 5 V supply and include robust ESD protection.
The handbook includes detailed functional block diagrams, timing specifications for I²C operation, pin configurations, typical performance characteristics, and an ordering guide. It also provides application examples such as S‑video, RGB/YPbPr video switches, HDTVs, projection TVs, DVD‑R/RW, and AV receivers.
| Bandwidth | 325 MHz |
|---|---|
| On‑resistance (typical) | 2.6 Ω |
| Quiescent supply current | 1 nA typical |
| Supply voltage | 3 V or 5 V |
| Package | 24‑lead LFCSP, 4 mm × 4 mm |
| ESD protection (HBM) | 4 kV |
The ADG791A has a bandwidth of 325 MHz.
It operates from a single 3 V or 5 V supply voltage.
The typical on‑resistance is 2.6 Ω.
It is protected up to 4 kV HBM, 200 V MM, and 1 kV FICDM.