Datasheet AD524 (Analog Devices)

Precision Instrumentation Amplifier AD524 FEATURES FUNCTIONAL BLOCK DIAGRAM Low noise: 0.3 μV p-p at 0.1 Hz to 10 Hz Low nonlinearity: 0.003% (G = 1) – INPUT 1 PROTECTION High CMRR: 120 dB (G = 1000) 4.44kΩ AD524 G = 10 13 Low offset voltage: 50 μV 404Ω G = 100 12 Low offset voltage drift: 0.5 μV/°C Vb 40Ω 20kΩ SENSE Gain bandwidth product: 25 MHz G = 1000 11 20kΩ 20kΩ Pin programmable gains of 1, 10, 100, 1000 RG1 16 OUTPUT Input protection, power-on/power-off RG2 3 20kΩ 20kΩ No external components required 20kΩ REFERENCE Internally compensated + INPUT 2 PROTECTION
01 0
MIL-STD-883B and chips available
0- 50 00
16-lead ceramic DIP and SOIC packages and 20-terminal
Figure 1.
leadless chip carrier available Available in tape and reel in accordance with EIA-481A standard Standard military drawing also available GENERAL DESCRIPTION
The AD524 is a precision monolithic instrumentation amplifier higher linearity C grade are specified from −25°C to +85°C. designed for data acquisition applications requiring high accu- The S grade guarantees performance to specification over the racy under worst-case operating conditions. An outstanding extended temperature range −55°C to +125°C. The AD524 is combination of high linearity, high common-mode rejection, available in a 16-lead ceramic DIP, 16-lead SBDIP, 16-lead SOIC low offset voltage drift, and low noise makes the AD524 suitable wide packages, and 20-terminal leadless chip carrier. for use in many data acquisition systems.
PRODUCT HIGHLIGHTS
The AD524 has an output offset voltage drift of less than 1. The AD524 has guaranteed low offset voltage, offset 25 μV/°C, input offset voltage drift of less than 0.5 μV/°C, CMR voltage drift, and low noise for precision high gain above 90 dB at unity gain (120 dB at G = 1000), and maximum applications. nonlinearity of 0.003% at G = 1. In addition to the outstanding 2. The AD524 is functionally complete with pin program- dc specifications, the AD524 also has a 25 kHz bandwidth mable gains of 1, 10, 100, and 1000, and single resistor (G = 1000). To make it suitable for high speed data acquisition programmable for any gain. systems, the AD524 has an output slew rate of 5 V/μs and settles in 15 μs to 0.01% for gains of 1 to 100. 3. Input and output offset nulling terminals are provided for As a complete amplifier, the AD524 does not require any exter- very high precision applications and to minimize offset voltage changes in gain ranging applications. nal components for fixed gains of 1, 10, 100 and 1000. For other gain settings between 1 and 1000, only a single resistor is required. 4. The AD524 is input protected for both power-on and The AD524 input is fully protected for both power-on and power-off fault conditions. power-off fault conditions. 5. The AD524 offers superior dynamic performance with a The AD524 IC instrumentation amplifier is available in four gain bandwidth product of 25 MHz, full power response of different versions of accuracy and operating temperature range. 75 kHz and a settling time of 15 μs to 0.01% of a 20 V step The economical A grade, the low drift B grade, and lower drift, (G = 100).
Rev. F 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 ©2007 Analog Devices, Inc. All rights reserved.
Document Outline FEATURES FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS CONNECTION DIAGRAMS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS TEST CIRCUITS THEORY OF OPERATION INPUT PROTECTION INPUT OFFSET AND OUTPUT OFFSET GAIN INPUT BIAS CURRENTS COMMON-MODE REJECTION GROUNDING SENSE TERMINAL REFERENCE TERMINAL PROGRAMMABLE GAIN AUTOZERO CIRCUITS ERROR BUDGET ANALYSIS OUTLINE DIMENSIONS ORDERING GUIDE