AD581: High Precision 10 V IC Reference

The AD5811 is a 3-pin, temperature compensated, monolithic, band gap voltage reference that provides a precise 10.00 V output from an unregulated input level ranging from 12 V to 30 V. Laser wafer trimming (LWT) is used to trim both the initial error at +25°C as well as the temperature coefficient, resulting in high precision performance previously available only in expensive hybrids or oven regulated modules. The 5 mV initial error tolerance and 5 ppm/°C guaranteed temperature coefficient of the AD581L is available in a monolithic voltage reference.

The band gap circuit design used in the AD581 offers several advantages over classical Zener breakdown diode techniques. Most important, no external components are required to achieve full accuracy and significant stability to low power systems. In addition, total supply current to the device, including the output buffer amplifier (which can supply up to 10 mA) is typically 750 μA. The long-term stability of the band gap design is equivalent to selected Zener reference diodes.

The AD581 is recommended for use as a reference for 8-, 10- or 12-bit digital-to-analog converters (DACs) that require an external precision reference. The device is also ideal for all types of analog-to-digital converters (ADCs) up to 14-bit accuracy, either successive approximation or integrating designs, and can generally offer better performance than that provided by standard self-contained references.

The AD581J, K, and L are specified for operation from 0°C to +70°C; the AD581S, T, and U are specified for the -55°C to +125°C range. All grades are packaged in a hermetically sealed three-terminal TO-5 metal can.

AD581 特点

Laser trimmed to high accuracy 10.000 V ±5 mV (L and U models)
Trimmed temperature coefficient
5 ppm/°C maximum, 0°C to 70°C (L model)
10 ppm/°C maximum, -55°C to +125°C (U model)
Excellent long-term stability 25 ppm/1000 hrs (noncumulative)
-10 V reference capability
Low quiescent current: 1.0 mA maximum
10 mA current output capability
3-pin TO-5 package
MIL-STD-883 compliant versions available

AD581 功能框图

AD581 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
5962-8688201XA	量产	3 ld TO-05	3	军用
5962-8688202XA	量产	3 ld TO-05	3	军用
5962-8688203XA	量产	3 ld TO-05	3	军用
AD581JH	量产	ROUND HEADER/METAL CAN	3	商业
AD581KH	量产	ROUND HEADER/METAL CAN	3	商业
AD581LH	量产	ROUND HEADER/METAL CAN	3	商业
AD581SH	量产	ROUND HEADER/METAL CAN	3	军用
AD581SH/883B	量产	ROUND HEADER/METAL CAN	3	军用
AD581TH	量产	ROUND HEADER/METAL CAN	3	军用
AD581TH/883B	量产	ROUND HEADER/METAL CAN	3	军用
AD581UH	量产	ROUND HEADER/METAL CAN	3	军用