The AD7237A/AD7247A is a dual 12-bit DAC on a single chip. It features two 12-bit CMOS DACs, on-chip voltage reference, output amplifiers and reference buffer amplifiers. It supports 12V to 15V operation, single or dual supply operation, and has a low power consumption of 165mW. It supports 8-bit or 16-bit parallel interface
The AD7237A/AD7247A DACPORT is a complete dual 12‑bit voltage‑output digital‑to‑analog converter fabricated in Linear Compatible CMOS (LC 2MOS). It includes on‑chip 5 V reference, output amplifiers capable of driving 10 V into a 2 kΩ load, and selectable unipolar or bipolar output ranges.
The device operates from a single +12 V to +15 V supply or dual ±12 V to ±15 V supplies, offers fast interface times (30 ns typical data setup), and provides low power consumption (165 mW typ in single‑supply mode). Pin configurations are available in 24‑lead DIP and SOIC packages.
| Resolution | 12 bits |
|---|---|
| Supply Voltage Range (single supply) | +12 V to +15 V |
| Reference Voltage | 5 V ±30 mV (±50 mV for T version) |
| Output Current (typical) | 165 mW typ in single‑supply |
| Maximum Supply Current (IDD) | 15 mA max (output unloaded) |
It operates from +12 V to +15 V for single‑supply operation and from ±12 V to ±15 V for dual‑supply operation.
The device provides 12‑bit resolution.
The internal reference is 5 V, trimmed to ±30 mV (±50 mV for the T version).