Datasheet AD589 (Analog Devices)

2-Terminal IC 1.2 V Reference AD589 FEATURES FUNCTIONAL BLOCK DIAGRAMS Superior Replacement for Other 1.2 V References Wide Operating Range: 50

A to 5 mA Low Power: 60 SOIC (R-8) Metal Can (H-02)

W Total PD at 50

A Low Temperature Coeffi cient: �� 10 ppm/

C Max, 0

C to 70

C (AD589M) 1 8 +V 2-Terminal Zener Operation 2 7 Low Output Impedance: 0.6

3 6 No Frequency Compensation Required –V 4 5 Low Cost AD589 �� TOP VIEW MIL-STD-883 Compliant Versions Available (Not to Scale) ������ ���� PRODUCT DESCRIPTION PRODUCT HIGHLIGHTS
The AD589 is a 2-terminal, low cost, temperature compensated 1. The AD589 is a 2-terminal device that delivers a constant band gap voltage reference that provides a fi xed 1.23 V output reference voltage for a wide range of input current. voltage for input currents between 50 A and 5.0 mA. 2. Output impedance of 0.6  and temperature coeffi cients as The high stability of the AD589 is primarily dependent upon low as 10 ppm/°C ensure stable output voltage over a wide the matching and thermal tracking of the on-chip components. range of operating conditions. Analog Devices’ precision bipolar processing and thin-fi lm tech- 3. The AD589 can be operated as a positive or negative refer- nology combine to provide excellent performance at low cost. ence. Floating operation is also possible. Additionally, the active circuit produces an output impedance 10 4. The AD589 will operate with a total current as low as 50 A lower than the typical low-TC Zener diodes. This feature allows (60 W total power dissipation), ideal for battery-powered operation with no external components required to maintain full instrument applications. accuracy under changing load conditions. 5. The AD589 is an exact replacement for other 1.2 V references, The AD589 is available in seven versions. The AD589J, AD589K, offering superior temperature performance and reduced sensi- AD589L, and AD589M grades are specifi ed for 0°C to +70°C tivity to capacitive loading. operation, while the AD589S and AD589T grades are rated for the full –55°C to +125°C temperature range. All grades are avail- 6. The AD589 is available in versions compliant with MIL- able in a metal can (H-02) package. The AD589J is also available STD-883. Consult factory for 883 data sheet. in an 8-lead SOIC package. REV. C Information furnished by Analog Devices is be lieved to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or oth-
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
erwise under any patent or patent rights of Analog Devices. Trademarks
Tel: 781/329-4700 www.analog.com
and registered trademarks are the property of their respective owners.
Fax: 781/326-8703 © 2004 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES PRODUCT DESCRIPTION FUNCTIONAL BLOCK DIAGRAMS PRODUCT HIGHLIGHTS SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS AD589 CHIP DIMENSIONS AND PAD LAYOUT ORDERING GUIDE UNDERSTANDING THE SPECIFICATIONS Voltage Variation Versus Temperature Dynamic Performance APPLICATION INFORMATION OUTLINE DIMENSIONS Revision History