The AD9762 is a 12-bit resolution member of the TxDAC series of high performance differential analog-to-digital converters. It features 125 MSPS update rate, a bandwidth of 70 dBc at 5 MHz output frequency. It is single supply, low power, and small package. It is suitable for applications such as base stations, ADSL/HFC modems, direct digital synthesis (DDS), etc.
The AD9762 belongs to Analog Devices’ TxDAC family of high‑performance, low‑power CMOS DACs. It provides a 12‑bit resolution, 125 MSPS update rate, and differential current outputs that can be configured for single‑ended or differential applications. The device operates from a flexible single‑supply range (2.7 V to 5.5 V) and includes an on‑chip 1.20 V reference.
The datasheet lists detailed DC, dynamic and digital specifications, absolute maximum ratings, pin configurations, and typical AC characterization results. Typical applications include communication transmit channels, ADSL/HFC modems, direct‑digital‑synthesis (DDS) systems, and instrumentation.
| Resolution | 12 Bits |
|---|---|
| Maximum Update Rate | 125 MSPS |
| Full‑Scale Output Current | 2 mA – 20 mA |
| Output Compliance Range | -1.0 V to +1.25 V |
| Power Dissipation (5 V) | 175 mW |
| Power Dissipation (3 V) | 45 mW |
The AD9762 can update its output at up to 125 MSPS.
The DAC provides a selectable full‑scale output current from 2 mA up to 20 mA.
At 5 V supply the device dissipates 175 mW, and at 3 V it dissipates 45 mW.