Datasheet AD8553 (Analog Devices)

link to page 1
1.8 V to 5 V Auto-Zero, In-Amp with Shutdown AD8553 FEATURES PIN CONFIGURATION Low offset voltage: 20 μV max RGA 1 10 RGB Low input offset drift: 0.1 μV/°C max VINP 2 9 VINN AD8553 High CMR: 120 dB min @ G = 100 VCC 3 8 GND TOP VIEW Low noise: 0.7 μV p-p from 0.01 Hz to 10 Hz VO 4 (Not to Scale) 7 VREF
1 00 4-
Wide gain range: 0.1 to 10,000 VFB 5 6 ENABLE
47 05
Single-supply operation: 1.8 V to 5.5 V
Figure 1. 10-Lead MSOP
Rail-to-rail output Shutdown capability APPLICATIONS Strain gauge Weigh scales Pressure sensors Laser diode control loops Portable medical instruments Thermocouple amplifiers GENERAL DESCRIPTION
The AD8553 is a precision instrumentation amplifier featuring The small package and low power consumption allow low noise, rail-to-rail output and a power-saving shutdown maximum channel density and minimum board size for mode. The AD8553 also features low offset voltage and drift space-critical equipment and portable systems. coupled with high common-mode rejection. In shutdown mode, the total supply current is reduced to less than 4 μA. The AD8553 is specified over the industrial temperature range The AD8553 is capable of operating from 1.8 V to 5.5 V. from −40°C to +85°C. The AD8553 is available in a Pb-free, 10-lead MSOP. With a low offset voltage of 20 μV, an offset voltage drift of 0.1 μV/°C, and a voltage noise of only 0.7 μV p-p (0.01 Hz to 10 Hz), the AD8553 is ideal for applications where error sources cannot be tolerated. Precision instrumentation, position and pressure sensors, medical instrumentation, and strain gauge amplifiers benefit from the low noise, low input bias current, and high common-mode rejection. The small footprint and low cost are ideal for high volume applications.
Rev. A 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 © 2005–2010 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 THEORY OF OPERATION HIGH PSR AND CMR 1/f NOISE CORRECTION APPLICATIONS GAIN SELECTION (GAIN-SETTING RESISTORS) REFERENCE CONNECTION DISABLE FUNCTION OUTPUT FILTERING CLOCK FEEDTHROUGH LOW IMPEDANCE OUTPUT MAXIMIZING PERFORMANCE THROUGH PROPER LAYOUT POWER SUPPLY BYPASSING INPUT OVERVOLTAGE PROTECTION CAPACITIVE LOAD DRIVE CIRCUIT DIAGRAMS/CONNECTIONS OUTLINE DIMENSIONS ORDERING GUIDE