AD9866 is a low cost 3.3V CMOS MxFE from Analog Devices for broadband modems, with 12-bit DAC, 2×/4× interpolation filter, 200 MSPS DAC update rate, integrated 23 dBm line driver with 19.5 dB gain control, 12-bit, 80 MSPS ADC, -12 dB to +48 dB low noise RxPGA (<2.5 nV/√Hz), third order programmable low-pass filter, flexible digital data path interface, half- and full-duplex operation, backward compatible with AD9975 and AD9876, various power-down/reduction modes, internal clock multiplier (PLL), 2 auxiliary programmable clock outputs, available in 64-lead chip scale package or bare die
The AD9866 integrates a 12‑bit DAC, 12‑bit ADC, programmable gain amplifiers, and a PLL‑based clock multiplier in a 64‑lead LFCSP package. It supports half‑ and full‑duplex operation, 3.3 V CMOS supply, and offers flexible digital interfaces for both half‑ and full‑duplex data paths.
The datasheet provides detailed specifications for the Tx and Rx paths, power‑supply requirements, digital timing, and pin configurations, along with ordering information and mechanical dimensions.
| DAC Resolution | 12 bits |
|---|---|
| DAC Update Rate | 200 MSPS |
| ADC Resolution | 12 bits |
| ADC Conversion Rate | 80 MSPS |
| Supply Voltage (AVDD) | 3.3 V ±5 % |
| Total Supply Current (typ) | 475 mA |
| Operating Temperature Range | -40 °C to +85 °C |
| Package | 64‑lead LFCSP (LFCSP_VQ) |
The DAC can update at up to 200 MSPS.
It operates from –40 °C to +85 °C.
The TxDAC gain can be adjusted in 0.5 dB steps.
The device is offered in a 64‑lead LFCSP package (CP‑64‑3).