ADG791A Datasheet | Analog Devices

.. I2C-patible, Wide Bandwidth, Quad, 2:1 Multiplexer ADG791A/ADG791G Features Bandwidth: 325 MHz Low insertion loss and on resistance: 2.6 Ω typical On resistance flatness: 0.3 Ω typical Single 3 V/5 V supply operation 3.3 V analog signal range (5 V supply, 75 Ω load) Low quiescent supply current: 1 n A typical Fast switching times: t ON = 186 ns, t OFF = 177 ns I2C®-patible interface pact 24-lead LFCSP ESD protection 4 k V human body model (HBM) 200 V machine model (MM) 1 k V field-induced charged device model (FICDM) FUNCTIONAL BLOCK DIAGRAM GND VDD GND S1A D1 S1B S2A D2 S2B S3A D3 S3B S4A D4 S4B I2C SERIAL INTERFACE S4B S3B S4A S2B S3A S1B S2A S1A ADG791G D1 D2 D3 D4 I2C SERIAL INTERFACE GPO1 06033-001 APPLICATIONS S-video RGB/YPb Pr video switches HDTVs Projection TVs DVD-R/RW AV receivers A0 A1 A2 SDA SCL A0 A1 A2 SDA SCL Figure 1. GENERAL DESCRIPTION The ADG791A/ADG791G are monolithic CMOS devices prising four 2:1 multiplexers/demultiplexers controllable via a standard I2C serial interface. The CMOS process provides ultralow power dissipation yet gives high switching speed and low on resistance. The on-resistance profile is very flat over the full analog input range and wide bandwidth ensures excellent linearity and low distortion. These Features , bined with a wide input signal range make the ADG791A/ADG791G the ideal switching solution for a wide range of TV applications including S-video, RGB, and YPb Pr video switches. The switches conduct equally well in both directions when on. In the off condition, signal levels up to the supplies are blocked. The ADG791A/ADG791G switches exhibit break-before-make switching action. The ADG791G has one general-purpose logic output pin controlled by the I2C interface that can also be used to control other non-I2C-patible devices such as video filters. The integrated I2C interface provides a large degree of flexibility in the system design. It has three configurable I2C...