AD8376 is a dual channel digitally controlled VGA from Analog Devices with ultralow distortion. It has a bandwidth of 700 MHz, gain range of -4 dB to +20 dB, step size of 1 dB ± 0.2 dB, differential input and output, noise figure of 8.7 dB @ maximum gain, output IP3 of ~50 dBm at 200 MHz, output P1dB of 20 dBm at 200 MHz, dual parallel 5-bit control interface, provides constant SFDR vs. gain, power-down control, single 5 V supply operation, and a 32-lead, 5 mm x 5 mm LFCSP package. It is suitable for differential ADC drivers, main and diversity IF sampling receivers, wideband multichannel receivers, and instrumentation.
The AD8376 is an ultralow‑distortion, dual independent VGA designed for IF applications. It offers a 24 dB gain range (‑4 dB to +20 dB), 1 dB step size, differential I/O, and a single‑supply 5 V operation in a compact 32‑lead LFCSP package. Key performance figures include a 700 MHz –3 dB bandwidth, 8.7 dB noise figure at maximum gain, and an output IP3 of roughly 50 dBm at 200 MHz.
The document details functional block diagrams, pin configurations, absolute maximum ratings, and typical performance characteristics across temperature and frequency. It also includes an ordering guide, layout considerations, and an evaluation board description for designers integrating the AD8376 into receiver front‑ends, ADC drivers, and instrumentation.
| Gain range | -4 dB to +20 dB |
|---|---|
| Bandwidth (‑3 dB) | 700 MHz |
| Noise figure (max gain) | 8.7 dB |
| Output IP3 (200 MHz) | ~50 dBm |
| Output P1dB (200 MHz) | 20 dBm |
The AD8376 provides a gain range from –4 dB to +20 dB.
The AD8376 achieves an output IP3 of approximately 50 dBm at 200 MHz.