AD5737 is a quad-channel, serial input, 12-bit DAC with dynamic power control and HART connectivity. It features 12-bit resolution and monotonicity, dynamic power control for thermal management or external PMOS mode, current output ranges of 0 mA to 20 mA, 4 mA to 20 mA, and 0 mA to 24 mA, ±0.1% total unadjusted error (TUE) maximum, user-programmable offset and gain, and is suitable for various applications.
The AD5737 is a quad‑channel, 12‑bit DAC that provides current outputs ranging from 0 mA to 20 mA (4 mA‑20 mA) and up to 24 mA. It operates from a 10.8 V to 33 V supply and includes on‑chip dynamic power control to minimize dissipation. Each channel features a CHART pin for HART network connectivity, and the device supports a versatile 3‑wire serial interface compatible with SPI, QSPI, Microwire, and other standards.
Key features include 12‑bit resolution, user‑programmable offset and gain, on‑chip diagnostics, an internal reference with ±10 ppm/°C accuracy, and a temperature range of –40 °C to +105 °C. Detailed specifications cover output current ranges, total unadjusted error, timing characteristics, and power‑on state information.
| Resolution | 12 bits |
|---|---|
| Supply voltage range | 10.8 V to 33 V |
| Output current range | 0–20 mA, 4–20 mA, up to 24 mA |
| Total Unadjusted Error (TUE) | ±0.1 % FSR |
| Operating temperature range | –40 °C to +105 °C |
| Reference input voltage | 4.95 V to 5.05 V |
The AD5737 operates with a power supply range from 10.8 V to 33 V.
The AD5737 provides 12‑bit resolution.
Yes, each channel has a CHART pin that allows HART signals to be coupled onto the current output.
The device can output up to 24 mA, with selectable ranges of 0‑20 mA or 4‑20 mA.