The AD7846 is a 16-bit, low-power, microprocessor-compatible, single-ended or dual-supply DAC. The device uses a segmented architecture comprised of a 12-bit DAC and a 16-bit resistor string. The 16-bit resistor string is programmed by a 16-bit register to provide a single-ended output range of 0 V to +5 V, 0 V to +10 V, or a dual-supply output range of ±5 V or ±10 V.
The AD7846 is a 16‑bit voltage‑output DAC built with Analog Devices’ LC*MOS process. It offers unipolar or bipolar output, low power consumption (100 mW typical), and a microprocessor‑compatible interface with read‑back capability and multiple control lines (CS, RAW, LDAC, CLR). The device uses a segmented architecture with a 16‑resistor string and three internal DACs to achieve monotonicity over temperature.
The document provides full electrical specifications, absolute maximum ratings, pin‑out tables for DIP, PLCC and ceramic packages, timing diagrams, and typical performance curves. Ordering information for the various package options and mechanical dimensions are also included.
| Resolution | 16 bits |
|---|---|
| Power Dissipation | 100 mW typ |
| Lead Soldering Temperature | +300 °C |
The AD7846 dissipates about 100 mW typical.
The device provides 16 data I/O pins plus control lines.
It has a 16‑bit resolution.
The lead temperature rating for soldering is +300 °C.