Amplifier is suitable for cable set top boxes, cable modems, xDSL modems and xDSL central office line cards. The AD8376 is a dual channel, digitally controlled, variable gain wide bandwidth amplifier that provides precise gain control, high IP3, and low noise figure. The excellent distortion performance and high signal bandwidth make the AD8376 an excellent gain control device for a variety of receiver applications.
Using an advanced high speed SiGe process and incorporating proprietary distortion cancellation techniques, the AD8376 achieves 50 dBm output IP3 at 200 MHz.
The AD8376 provides a broad 24 dB gain range with 1 dB resolution. The gain of each channel is adjusted through dedicated 5-pin control interfaces and can be driven using standard TTL levels. The open-collector outputs provide a flexible interface, allowing the overall signal gain to be set by the loading impedance. Thus, the signal voltage gain is directly proportional to the load.
- Dual independent digitally controlled VGAs
- 700 MHz Bandwidth
- Differential input and output
- Dual parallel 5-bit control interface
- Provides constant SFDR vs gain
- Power-down control
- Single 5V supply operation
- Applications:
- Differential ADC drivers
- Main and diversity IF sampling receivers
- Wideband multichannel receivers
- Instrumentation
