Datasheet ADR510 (Analog Devices)

1.0 V Precision Low Noise Shunt Voltage Reference ADR510 FEATURES PIN CONFIGURATION Precision 1.000 V voltage reference ADR510 Ultracompact 3 mm × 3 mm SOT-23 package V+ 1 No external capacitor required 3 TRIM/NC Low output noise: 4 μV p-p (0.1 Hz to 10 Hz) V– 2 Initial accuracy: ±0.35% maximum TOP VIEW (Not to Scale)
-001
Temperature coefficient: 70 ppm/°C maximum
270
NC = NO CONNECT
03
Operating current range: 100 μA to 10 mA
Figure 1. 3-Lead SOT-23-3
Output impedance: 0.3 Ω maximum Temperature range: −40°C to +85°C APPLICATIONS Precision data acquisition systems Battery-powered equipment Cellular phone Notebook computer PDA GPS 3 V/5 V, 8-/12-bit data converters Portable medical instruments Industrial process control systems Precision instruments GENERAL DESCRIPTION
Designed for space critical applications, the ADR510 is a low
VS
voltage (1.000 V), precision shunt-mode voltage reference in an
IL + IQ RBIAS
ultracompact (3 mm × 3 mm) SOT-23-3 package. The ADR510
IL
features low temperature drift (70 ppm/°C), high accuracy
VOUT = 1.0V
(±0.35%), and ultralow noise (4 μV p-p) performance.
I ADR510 Q COUT (OPTIONAL)
The ADR510 advanced design eliminates the need for an external
VS – VOUT
-002 capacitor, yet it is stable with any capacitive load. The minimum
RBIAS = I
70
L + IQ
32 0 operating current increases from 100 μA to a maximum of 10 mA. Figure 2. Typical Operating Circuit This low operating current and ease of use make the ADR510 ideally suited for handheld battery-powered applications.
Table 1. ADR510 Output Temperature
A TRIM terminal is available on the ADR510 to provide
Part Voltage, VOUT Initial Accuracy Coefficient
adjustment of the output voltage over ±0.5% without affecting ADR510A 1.000 V 3.5 mV 0.35% 70 ppm/°C the temperature coefficient of the device. This feature provides users with the flexibility to trim out any system errors.
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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2003–2007 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES APPLICATIONS PIN CONFIGURATION GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS PARAMETER DEFINITIONS TEMPERATURE COEFFICIENT THERMAL HYSTERESIS APPLICATIONS INFORMATION ADJUSTABLE PRECISION VOLTAGE SOURCE OUTPUT VOLTAGE TRIM USING THE ADR510 WITH PRECISION DATA CONVERTERS PRECISE NEGATIVE VOLTAGE REFERENCE OUTLINE DIMENSIONS ORDERING GUIDE