Datasheet AD580 (Analog Devices)

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High Precision, 2.5 V IC Reference AD580 FEATURES FUNCTIONAL BLOCK DIAGRAM Laser-trimmed to high accuracy: 2.500 V ±0.4% +E 3-terminal device: voltage in/voltage out Excellent temperature stability: 10 ppm/°C (AD580M, U) EOUT BOTTOM Excellent long-term stability: 250 μV (25 μV/month) VIEW Low quiescent current: 1.5 mA maximum
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Small, hermetic IC package: TO-52 can –E MIL-STD-883 compliant versions available
00525-B Figure 1.
GENERAL DESCRIPTION PRODUCT HIGHLIGHTS
The AD580 is a 3-terminal, low cost, temperature-compensated, 1. Laser-trimming of the thin film resistors minimizes the bandgap voltage reference, which provides a fixed 2.5 V output AD580 output error. For example, the AD580L output for inputs between 4.5 V and 30 V. A unique combination of tolerance is ±10 mV. advanced circuit design and laser-wafer trimmed thin film 2. The three-terminal voltage in/voltage out operation of the resistors provide the AD580 with an initial tolerance of ±0.4%, a AD580 provides regulated output voltage without any temperature stability of better than 10 ppm/°C, and long-term external components. stability of better than 250 μV. In addition, the low quiescent 3. The AD580 provides a stable 2.5 V output voltage for input current drain of 1.5 mA maximum offers a clear advantage over voltages between 4.5 V and 30 V. The capability to provide classical Zener techniques. a stable output voltage using a 5 V input makes the AD580 an ideal choice for systems that contain a single logic The AD580 is recommended as a stable reference for all 8-, 10-, power supply. and 12-bit D/A converters that require an external reference. In 4. Thin film resistor technology and tightly controlled bipolar addition, the wide input range of the AD580 allows operation processing provide the AD580 with temperature stabilities with 5 volt logic supplies, making the AD580 ideal for digital to 10 ppm/°C and long-term stability better than 250 μV. panel meter applications or whenever only a single logic power 5. The low quiescent current drain of the AD580 makes it supply is available. ideal for CMOS and other low power applications. 6. The AD580 is available in versions compliant with MIL- The AD580J, K, L, and M are specified for operation over the STD-883. Refer to the Analog Devices Military Products 0°C to +70°C temperature range; the AD580S, T, and U are Data Book or the current AD580/AD883B data sheet for specified for operation over the extended temperature range of detailed specifications. –55°C to +125°C.
Rev. B Information furnished by Analog Devices is believed 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. Specifications subject to change without notice. No license is granted by implication One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. or otherwise under any patent or patent rights of Analog Devices. Trademarks and Tel: 781.329.4700 www.analog.com registered trademarks are the property of their respective owners. Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS AD580 CHIP DIMENSIONS AND PAD LAYOUT ESD CAUTION THEORY OF OPERATION VOLTAGE VARIATION VERSUS TEMPERATURE NOISE PERFORMANCE THE AD580 AS A CURRENT LIMITER THE AD580 AS A LOW POWER, LOW VOLTAGE, PRECISION REFERENCE F OUTLINE DIMENSIONS ORDERING GUIDE