Duke CE 281 - Precision Instrumentation Amplifier (16 pages)

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Precision Instrumentation Amplifier



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Precision Instrumentation Amplifier

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Pages:
16
School:
Duke University
Course:
Ce 281 - Experimental Systems
Experimental Systems Documents

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a FEATURES Low Noise 0 3 V p p 0 1 Hz to 10 Hz Low Nonlinearity 0 003 G 1 High CMRR 120 dB G 1000 Low Offset Voltage 50 V Low Offset Voltage Drift 0 5 V C Gain Bandwidth Product 25 MHz Pin Programmable Gains of 1 10 100 1000 Input Protection Power On Power Off No External Components Required Internally Compensated MIL STD 883B and Chips Available 16 Lead Ceramic DIP and SOIC Packages and 20 Terminal Leadless Chip Carriers Available Available in Tape and Reel in Accordance with EIA 481A Standard Standard Military Drawing Also Available Precision Instrumentation Amplifier AD524 FUNCTIONAL BLOCK DIAGRAM INPUT PROTECTION 4 44kV AD524 G 10 404V G 100 40V Vb 20kV SENSE G 1000 20kV 20kV 20kV 20kV RG1 VOUT RG2 20kV REFERENCE INPUT PROTECTION PRODUCT DESCRIPTION PRODUCT HIGHLIGHTS The AD524 is a precision monolithic instrumentation amplifier designed for data acquisition applications requiring high accuracy under worst case operating conditions An outstanding combination of high linearity high common mode rejection low offset voltage drift and low noise makes the AD524 suitable for use in many data acquisition systems 1 The AD524 has guaranteed low offset voltage offset voltage drift and low noise for precision high gain applications The AD524 has an output offset voltage drift of less than 25 V C input offset voltage drift of less than 0 5 V C CMR above 90 dB at unity gain 120 dB at G 1000 and maximum nonlinearity of 0 003 at G 1 In addition to the outstanding dc specifications the AD524 also has a 25 kHz gain bandwidth product G 1000 To make it suitable for high speed data acquisition systems the AD524 has an output slew rate of 5 V s and settles in 15 s to 0 01 for gains of 1 to 100 2 The AD524 is functionally complete with pin programmable gains of 1 10 100 and 1000 and single resistor programmable for any gain 3 Input and output offset nulling terminals are provided for very high precision applications and to minimize offset voltage changes in gain ranging applications



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