AD588: High Precision Voltage Reference

The AD588 represents a major advance in the state-of-the-art in monolithic voltage references. Low initial error and low temperature drift give the AD588 absolute accuracy performance previously not available in monolithic form. The AD588 uses a proprietary ion-implanted buried Zener diode, and laser-wafer-drift trimming of high stability thin-film resistors to provide outstanding performance at low cost.

The AD588 includes the basic reference cell and three additional amplifiers which provide pin-programmable output ranges. The amplifiers are laser-trimmed for low offset and low drift to maintain the accuracy of the reference. The amplifiers are configured to allow Kelvin connections to the load and/or boosters for driving long lines or high-current loads, delivering the full accuracy of the AD588 where it is required in the application circuit.

The low initial error allows the AD588 to be used as a system reference in precision measurement applications requiring 12-bit absolute accuracy. In such systems, the AD588 can provide a known voltage for system calibration in software and the low drift allows compensation for the drift of other components in a system. Manual system calibration and the cost of periodic recalibration can therefore be eliminated. Furthermore, the mechanical instability of a trimming potentiometer and the potential for improper calibration can be eliminated by using the AD588 in conjunction autocalibration software.

The AD588 is available in seven versions. The AD588 JQ and KQ grades are packaged in a 16-pin cerdip and are specified for 0°C to +70°C operation. AD588AD and BD grades are packaged in a 16-pin side-brazed ceramic DIP and are specified for the -25°C to +85°C industrial temperature range. The ceramic AD588SD and TD grades are specified for the full military/ aerospace temperature range. For military surface mount applications, the AD588SE and TE grades will also be available in 20-pin LCC packages.

AD588 特点

Low Drift: 1.5 ppm/°C
Low Initial Error: 1 mV
Pin Programmable Output:
+10 V, +5 V, +65 V Tracking, -5 V, -10 V
Flexible Output Force and Sense Terminals
High Impedance Ground Sense
Machine Insertable DIP Packaging
MIL-STD-883 Compliant Versions Available

AD588 功能框图

AD588 芯片订购指南

产品型号	产品状态	封装	引脚	温度范围
5962-89728022A	量产	20 ld LCC	20	军用
AD588AQ	量产	16 ld CerDIP	16	工业
AD588ARWZ	量产	16 ld SOIC - Wide	16	工业
AD588BQ	量产	16 ld CerDIP	16	工业
AD588JQ	量产	16 ld CerDIP	16	商业
AD588KQ	量产	16 ld CerDIP	16	商业
AD588TE/883B	量产	20 ld LCC	20	军用
AD588TQ/883B	量产	16 ld CerDIP	16	军用