The ADV7128 video DAC from Analog Devices provides a high‑speed 10‑bit digital‑to‑analog conversion for video applications. It operates from a single +5 V supply and requires an external 1.23 V reference voltage. The device supports RS‑343A, RS‑170 and HDTV video standards, delivering up to 22 mA of output current into a 75 Ω load.
The datasheet includes functional block diagrams, pin descriptions, absolute maximum ratings, timing characteristics, and layout recommendations. Detailed specifications cover static performance, dynamic performance, power requirements, and recommended PCB design practices to minimize noise and ensure reliable operation.
| Resolution | 10 Bits |
|---|---|
| Integral Nonlinearity (INL) | ±1 LSB max |
| Differential Nonlinearity (DNL) | ±1 LSB max |
| Input High Voltage (V_INH) | 2 V min |
| Input Low Voltage (V_INL) | 0.8 V max |
| Gray Scale Current Range | 15 mA – 22 mA |
| Output Compliance Voltage | 0 V to +1.4 V |
| Supply Voltage (VAA) | 5 V ±5 % |
| Power Dissipation (80 MHz) | 625 mW max |
| Reference Voltage (VREF) | 1.235 V |
The device operates from a single +5 V power supply (VAA).
An external 1.23 V reference voltage is required.
Gray scale current ranges from 15 mA minimum to 22 mA maximum.