AD524ARZ-16

Manufacturer Part NumberAD524ARZ-16
DescriptionIC AMP INST 1MHZ PREC LN 16SOIC
ManufacturerAnalog Devices Inc
AD524ARZ-16 datasheet
 


Specifications of AD524ARZ-16

Amplifier TypeInstrumentationNumber Of Circuits1
Slew Rate5 V/µsGain Bandwidth Product1MHz
-3db Bandwidth1MHzCurrent - Input Bias50nA
Voltage - Input Offset250µVCurrent - Supply3.5mA
Voltage - Supply, Single/dual (±)±6 V ~ 18 VOperating Temperature-25°C ~ 85°C
Mounting TypeSurface MountPackage / Case16-SOIC (0.300", 7.5mm Width)
No. Of Amplifiers5Input Offset Voltage250µV
Gain Db Min1dBBandwidth25MHz
Amplifier OutputSingle EndedCmrr110dB
Supply Voltage Range± 6V To ± 18VRohs CompliantYes
Lead Free Status / RoHS StatusLead free / RoHS CompliantOutput Type-
Current - Output / Channel-  
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FEATURES
Low noise: 0.3 μV p-p at 0.1 Hz to 10 Hz
Low nonlinearity: 0.003% (G = 1)
High CMRR: 120 dB (G = 1000)
Low offset voltage: 50 μV
Low offset voltage drift: 0.5 μV/°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 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
designed for data acquisition applications requiring high accu-
racy 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.
The AD524 has an output offset voltage drift of less than
25 μV/°C, input offset voltage drift of less than 0.5 μV/°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 bandwidth
(G = 1000). To make it suitable for high speed data acquisition
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.
As a complete amplifier, the AD524 does not require any exter-
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.
The AD524 input is fully protected for both power-on and
power-off fault conditions.
The AD524 IC instrumentation amplifier is available in four
different versions of accuracy and operating temperature range.
The economical A grade, the low drift B grade, and lower drift,
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
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.
Trademarks and registered trademarks are the property of their respective owners.
Instrumentation Amplifier
FUNCTIONAL BLOCK DIAGRAM
PROTECTION
– INPUT
1
4.44kΩ
G = 10
13
404Ω
G = 100
12
V
b
40Ω
G = 1000
11
20kΩ
20kΩ
RG
16
1
RG
3
2
20kΩ
20kΩ
+ INPUT
PROTECTION
2
Figure 1.
higher linearity C grade are specified from −25°C to +85°C.
The S grade guarantees performance to specification over the
extended temperature range −55°C to +125°C. The AD524 is
available in a 16-lead ceramic DIP, 16-lead SBDIP, 16-lead SOIC
wide packages, and 20-terminal leadless chip carrier.
PRODUCT HIGHLIGHTS
1.
The AD524 has guaranteed low offset voltage, offset
voltage drift, and low noise for precision high gain
applications.
2.
The AD524 is functionally complete with pin program-
mable 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.
4.
The AD524 is input protected for both power-on and
power-off fault conditions.
5.
The AD524 offers superior dynamic performance with a
gain bandwidth product of 25 MHz, full power response of
75 kHz and a settling time of 15 μs to 0.01% of a 20 V step
(G = 100).
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
©2007 Analog Devices, Inc. All rights reserved.
Precision
AD524
AD524
20kΩ
SENSE
OUTPUT
20kΩ
REFERENCE
www.analog.com

AD524ARZ-16 Summary of contents

  • Page 1

    FEATURES Low noise: 0.3 μV p Low nonlinearity: 0.003 High CMRR: 120 1000) Low offset voltage: 50 μV Low offset voltage drift: 0.5 μV/°C Gain bandwidth product: 25 ...

  • Page 2

    AD524 TABLE OF CONTENTS Features .............................................................................................. 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 8 Connection Diagrams .................................................................. 8 ESD Caution .................................................................................. 8 ...

  • Page 3

    SPECIFICATIONS @ V = ± kΩ and T = +25°C, unless otherwise noted All min and max specifications are guaranteed. Specifications shown in boldface are tested on all production units at the final ...

  • Page 4

    AD524 Parameter INPUT Input Impedance Differential Resistance Differential Capacitance Common-Mode Resistance Common-Mode Capacitance Input Voltage Range Maximum Differential Input Linear (V Maximum Common-Mode Linear (V Common-Mode Rejection with 1 kΩ Source Imbalance ...

  • Page 5

    Parameter TEMPERATURE RANGE Specified Performance Storage POWER SUPPLY Power Supply Range Quiescent Current 1 Does not include effects of external resistor the maximum differential input voltage for specified nonlinearity ...

  • Page 6

    AD524 Parameter INPUT CURRENT Input Bias Current vs. Temperature Input Offset Current vs. Temperature INPUT Input Impedance Differential Resistance Differential Capacitance Common-Mode Resistance Common-Mode Capacitance Input Voltage Range Maximum Differential Input Linear (V Maximum Common-Mode Linear (V Common-Mode Rejection DC ...

  • Page 7

    Parameter REFERENCE INPUT Voltage Range Gain to Output TEMPERATURE RANGE Specified Performance Storage POWER SUPPLY Power Supply Range Quiescent Current 1 Does not include effects of external resistor the maximum ...

  • Page 8

    AD524 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Supply Voltage Internal Power Dissipation 1 Input Voltage (Either Input Simultaneously Output Short-Circuit Duration Storage Temperature Range (R) (D, E) Operating Temperature Range AD524A/AD524B/AD524C AD524S Lead Temperature (Soldering, ...

  • Page 9

    TYPICAL PERFORMANCE CHARACTERISTICS +25° SUPPLY VOLTAGE (±V) Figure 5. Input Voltage Range vs. Supply Voltage SUPPLY VOLTAGE (±V) Figure 6. Output ...

  • Page 10

    AD524 INPUT VOLTAGE (±V) Figure 11. Input Bias Current vs. Input Voltage WARM-UP TIME (Minutes) ...

  • Page 11

    S 1V p-p SINEWAVE 140 120 100 100 1k 10k FREQUENCY (Hz) Figure 17. Positive PSRR vs. Frequency 160 – p-p SINEWAVE 140 120 100 ...

  • Page 12

    AD524 –12 TO +12 1% 0.1% – – OUTPUT STEP ( – –8 1% 0.1% +12 TO – SETTLING TIME (µs) Figure 23. Settling Time, Gain = 1 1mV ...

  • Page 13

    TO +12 1% 0.1% – – OUTPUT STEP ( – –8 1% 0.1% +12 TO – SETTLING TIME (µs) Figure 29. Settling Time, Gain = ...

  • Page 14

    AD524 TEST CIRCUITS INPUT 20V p-p –IN 10kΩ 0.01% 100kΩ +V 0.1% – 100 AD524 12 11kΩ 1kΩ 100Ω 1000 0.1% 0.1% 0. ...

  • Page 15

    THEORY OF OPERATION The AD524 is a monolithic instrumentation amplifier based on the classic 3-op amp circuit. The advantage of monolithic construction is the closely matched components that enhance the performance of the input preamplifier. The preamplifier section develops the ...

  • Page 16

    AD524 Voltage offset and drift comprise two components each; input and output offset and offset drift. Input offset is the component of offset that is directly proportional to gain, that is, input offset as measured at the output at G ...

  • Page 17

    The AD524 can also be configured to provide gain in the output stage. Figure 37 shows an H pad attenuator connected to the reference and sense lines of the AD524. R1, R2, and R3 should be made as low as ...

  • Page 18

    AD524 GROUNDING Many data acquisition components have two or more ground pins that are not connected together within the device. These grounds must be tied together at one point, usually at the system power-supply ground. Ideally, a single solid ground ...

  • Page 19

    S SENSE AD524 REF 7 V – –V S AD711 Figure 45. Use of Reference Terminal to Provide Output Offset An instrumentation amplifier can be turned into ...

  • Page 20

    AD524 PROGRAMMABLE GAIN Figure 47 shows the AD524 being used as a software program- mable gain amplifier. Gain switching can be accomplished with mechanical switches such as DIP switches or reed relays. It should be noted that the on resistance ...

  • Page 21

    S + +INPUT AD524 G = 100 1000 – –INPUT 1 –V 39kΩ REF –V S AD589 + ...

  • Page 22

    AD524 Table 5. Error Budget Analysis AD524C Error Source Specifications Gain Error ±0.25% Gain Instability 25 ppm Gain Nonlinearity ±0.003% Input Offset Voltage ±50 μV, RTI Input Offset Voltage Drift ±0.5 μV/°C – 1 Output Offset Voltage ±2 ...

  • Page 23

    Figure 53 shows a simple application in which the variation of the cold-junction voltage of a Type J thermocouple-iron ± constantan is compensated for by a voltage developed in series by the temperature-sensitive output current of an AD590 semiconductor temperature ...

  • Page 24

    AD524 OUTLINE DIMENSIONS 0.358 (9.09) 0.342 (8.69) CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 0.005 (0.13) MIN ...

  • Page 25

    ... AD524AR-16 −40°C to +85°C AD524AR-16-REEL −40°C to +85°C AD524AR-16-REEL7 −40°C to +85°C 1 AD524ARZ-16 −40°C to +85°C 1 AD524ARZ-16-REEL7 −40°C to +85°C AD524BD −40°C to +85°C AD524BDZ 1 −40°C to +85°C AD524BE −40°C to +85°C AD524CD − ...

  • Page 26

    AD524 NOTES Rev Page ...

  • Page 27

    NOTES Rev Page AD524 ...

  • Page 28

    AD524 NOTES ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00500-0-11/07(F) Rev Page ...