This document is about DAC1020 and DAC1220, which are respectively 10- and 12-bit binary multiplying digital-to-analog converters with excellent temperature tracking characteristics. They use CMOS current switches and drive circuitry to achieve low power consumption and low output leakage.
This document is a datasheet for the National Semiconductor DAC1020, DAC1021, DAC1022, DAC1220, and DAC1222 devices. These are 10-bit and 12-bit binary multiplying digital-to-analog converters (DACs) designed for applications requiring high linearity and low power consumption. The devices utilize a deposited thin film R-2R resistor ladder and CMOS current switches to achieve excellent temperature tracking and low output leakage.
| Resolution | 10 or 12 Bits |
|---|---|
| Power Dissipation | 10 mW @15V typ |
| Settling Time | 500 ns typ |
| Operating Temperature | -40 to +85 °C |
| Supply Voltage Range | 5 to 15 V |
The DAC1020, DAC1021, and DAC1022 are direct replacements for the 10-bit resolution AD7520.
Yes, combined with an external amplifier and voltage reference, they can be used as a standard D/A converter.
The maximum output leakage current is 200 nA when all digital inputs are low or high.