Analog Devices ADV3221
ADV3221 is a pin-for-pin upgrade to the HA4344 Gain = +1 (ADV3221) or gain = +2 (ADV3222) Low all hostile crosstalk of −85 dB @ 5 MHz, and −58 dB @ 100 MHz Latched control lines for synchronous switching High impedance output disable allows connection of multiple devices without loading the output bus 16-lead SOIC CS D FUNCTIONAL BLOCK DIAGRAM Q D Q ENABLE LATCH A0 D Q LATCH D Q DECODE LATCH A1 CK1 CK2 100kΩ D Q LATCH D Q IN0 IN1 IN2 IN3 G = +1 (G = +2) OUT LATCH LATCH 100kΩ Figure 1. They offer a −3 dB signal bandwidth greater than 800 MHz and channel switch times of less than 20 ns with 1% settling. With lower than −58 dB of crosstalk and −67 dB isolation (at 100 MHz), the ADV3221 and ADV3222 are useful in many high speed applications.