The DAC7621 is a 12-bit digital-to-analog converter (DAC) with guaranteed 12-bit monotonicity performance over the industrial temperature range. It requires a single +5V supply and contains an input register, latch, 2.435V reference, DAC, and high speed rail-to-rail output amplifier. For a full-scale step, the output will settle to 1 LSB within 7µs. The device consumes 2.5mW (0.5mA at 5V). The parallel interface is compatible with a wide variety of microcontrollers. The DAC7621 accepts a 12-bit parallel word, has a double-buffered input logic structure and provides data readback. In addition, two control pins provide a chip select (CS) function and asynchronous clear (CLR) input. The CLR input can be used to ensure that the DAC7621 output is 0V on power-up or as required by the application. The DAC7621 is available in a 20-lead SSOP package and is fully specified over the industrial temperature range of –40°C to +85°C.
The DAC7621 is a 12‑bit, parallel‑input digital‑to‑analog converter from Burr‑Brown. It operates from a single +5 V supply, offers rail‑to‑rail output, and is specified for industrial temperature ranges (‑40 °C to +85 °C). The document provides detailed electrical specifications, pin descriptions, timing diagrams, and typical performance curves.
Key sections include features, full specifications, pin configuration, timing diagrams, typical performance graphs, and packaging/ordering information, followed by legal notices and a Texas Instruments addendum.
| Resolution | 12 bits |
|---|---|
| Power Dissipation | 2.5 mW |
| Supply Voltage (Vop) | 4.75 V – 5.25 V |
| Settling Time (to 1 LSB) | 7 µs |
| Short‑Circuit Current | 20 mA |
| Package | 20‑lead SSOP |
The device operates from a Vop of 4.75 V to 5.25 V.
Typical settling time is 7 µs to reach 1 LSB of the final value.
The DAC7621 is supplied in a 20‑lead SSOP package.
It can tolerate a short‑circuit current of up to 20 mA.