The AD9704/AD9705/AD9706/AD9707 are the fourth-generation family in the TxDAC series of high performance, CMOS digital-to-analog converters. They feature a 175 MSPS update rate, low power dissipation, wide supply voltage range, adjustable full-scale current outputs, on-chip 1.0V reference, and more.
The AD9704, AD9705, AD9706 and AD9707 form a fourth‑generation TxDAC family of CMOS digital‑to‑analog converters. They are pin‑compatible, cover 8‑, 10‑, 12‑ and 14‑bit resolutions, and are optimized for low power operation while delivering high dynamic performance for communication‑system transmit paths.
Key features include a wide supply range of 1.7 V to 3.6 V, adjustable full‑scale output currents of 1 mA to 5 mA, an on‑chip 1.0 V reference, and an optional SPI interface for programmable operation. The devices achieve up to 175 MSPS update rates with power dissipation as low as 12 mW at 80 MSPS (1.8 V) and 50 mW at 175 MSPS (3.3 V).
| Resolution | 8‑14 bits |
|---|---|
| Maximum Update Rate | 175 MSPS |
| Supply Voltage Range | 1.7 V to 3.6 V |
| Power Dissipation (3.3 V) | 50 mW at 175 MSPS |
| Full‑Scale Output Current | 1 mA to 5 mA |
| Spurious‑Free Dynamic Range (AD9707) | 84 dBc at 5 MHz |
| On‑Chip Reference Voltage | 1.0 V |
The devices operate from 1.7 V up to 3.6 V.
All four parts support a maximum update rate of 175 MSPS.
At 175 MSPS and 3.3 V supply the power dissipation is about 50 mW.
Yes, an optional serial peripheral interface (SPI) provides programmable control of the DAC.