This datasheet provides details about the features and functions of the ADRF6516 device, including a 6-pole Butterworth filter, a variable gain amplifier, and an internal offset compensation loop.
The ADRF6516 is a matched pair of fully differential, low‑noise, low‑distortion programmable filters and variable gain amplifiers (VGAs) designed for quadrature‑based receivers, ADC drivers, and other high‑performance RF applications. It offers a 6‑pole Butterworth response with programmable corner frequencies from 1 MHz to 31 MHz in 1 MHz steps and a continuous gain range of –5 dB to +45 dB.
Key features include SPI‑programmable filter corners and gain steps, differential input and output, optional DC‑offset compensation, a single 3.3 V supply operation, and low power‑down current. The device operates over –40 °C to +85 °C and is supplied in a 32‑lead LFCSP package.
| Low‑Pass Corner Frequency Range | 1 MHz to 31 MHz (1 MHz steps) |
|---|---|
| Supply Voltage | 3.15 V to 3.45 V (single 3.3 V supply) |
| Maximum Supply Current (31 MHz) | 360 mA |
| Differential Input Impedance | 1600 Ω |
| Power‑Down Current | <9 mA |
| Operating Temperature Range | –40 °C to +85 °C |
The filters can be programmed from 1 MHz to 31 MHz in 1 MHz steps.
It operates from a single 3.3 V supply with a permissible range of 3.15 V to 3.45 V.
At the 31 MHz corner frequency the device draws up to 360 mA.