The document introduces the AD9754 product from Analog Devices, which is a 14-bit, 125 MSPS high-performance TxDAC digital-to-analog converter. It features excellent spurious free dynamic range performance and can be used in wideband communication transmit channels, wireless basestations, digital synthesis instruments, and other applications.
The AD9754 is a 14‑bit, 125 MSPS TxDAC® digital‑to‑analog converter designed for wideband communication transmitters, direct‑IF base stations, wireless local loop, digital radio links, and DDS applications. It features a differential current output of 2 mA to 20 mA, on‑chip 1.20 V reference, and CMOS‑compatible digital interface.
The handbook details the device’s electrical specifications, absolute maximum ratings, pin functions, and typical application circuits. It also includes dynamic performance data such as settling time, rise/fall times, and spurious‑free dynamic range, along with ordering information for SOIC and TSSOP packages.
| Resolution | 14 Bits |
|---|---|
| Maximum Update Rate | 125 MSPS |
| Analog Supply Voltage (AVDD) | 4.5 V to 5.5 V |
| Digital Supply Voltage (DVDD) | 2.7 V to 5.5 V |
| Output Compliance Range | -1.0 V to 1.25 V |
| Output Noise (20 mA FS) | 50 pA/√Hz |
| Output Settling Time (0.1 %) | 135 ns |
| Output Rise Time (10‑90 %) | 12.5 ns |
The AD9754 can operate at a maximum output update rate of 125 MSPS.
The analog supply (AVDD) ranges from 4.5 V to 5.5 V and the digital supply (DVDD) from 2.7 V to 5.5 V.