OPA37G Burr-Brown, OPA37G Datasheet

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OPA37G

Manufacturer Part Number
OPA37G
Description
Ultra-Low Noise Precision OPERATIONAL AMPLIFIERS
Manufacturer
Burr-Brown
Datasheet

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OPA37GU
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20 000
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
FEATURES
DESCRIPTION
The OPA27/37 is an ultra-low noise, high precision
monolithic operational amplifier.
Laser-trimmed thin-film resistors provide excellent
long-term voltage offset stability and allow superior
voltage offset compared to common zener-zap tech-
niques.
A unique bias current cancellation circuit allows bias
and offset current specifications to be met over the full
–55 C to +125 C temperature range.
The OPA27 is internally compensated for unity-gain
stability. The decompensated OPA37 requires a closed-
loop gain
The Burr-Brown OPA27/37 is an improved replace-
ment for the industry-standard OP-27/OP-37.
© 1984 Burr-Brown Corporation
LOW NOISE: 4.5nV/ Hz max at 1kHz
LOW OFFSET: 100 V max
LOW DRIFT: 0.4 V/ C
HIGH OPEN-LOOP GAIN: 117dB min
HIGH COMMON-MODE REJECTION:
100dB min
HIGH POWER SUPPLY REJECTION:
94dB min
FITS OP-07, OP-05, AD510, AD517
SOCKETS
5.
OPERATIONAL AMPLIFIERS
®
Ultra-Low Noise Precision
PDS-466M
1
Trim
Trim
–In
+In
APPLICATIONS
8
1
2
3
PRECISION INSTRUMENTATION
DATA ACQUISITION
TEST EQUIPMENT
PROFESSIONAL AUDIO EQUIPMENT
TRANSDUCER AMPLIFIER
RADIATION HARD EQUIPMENT
OPA27, 37
Printed in U.S.A. March, 1998
OPA27
OPA37
7
6
4
+V
Output
–V
CC
CC
®

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OPA37G Summary of contents

Page 1

... International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111 Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 © ...

Page 2

SPECIFICATIONS 15V and T = +25 C, unless otherwise noted PARAMETER (6) INPUT NOISE Voltage 10Hz 30Hz 1kHz 0.1Hz to 10Hz B (1) Current, ...

Page 3

... Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems ...

Page 4

... Offset Trim (2) OPA27GU NOTE: (1) Packages for OPA37 are same as for OPA27. (2) OPA27GU may + marked OPA27U. Likewise, OPA37GU may be marked OPA37U. (3) For 6 Output detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book OPA111 4.7µ ...

Page 5

TYPICAL PERFORMANCE CURVES + 15VDC, unless otherwise noted INPUT OFFSET VOLTAGE WARM-UP DRIFT + –5 – Time From Power Turn-On (min) INPUT VOLTAGE NOISE vs ...

Page 6

TYPICAL PERFORMANCE CURVES + 15VDC, unless otherwise noted INPUT CURRENT NOISE SPECTRAL DENSITY 10 8 Current Noise Test Circuit 6 4 100k 500k 2 500k 0 ...

Page 7

TYPICAL PERFORMANCE CURVES + 15VDC, unless otherwise noted COMMON-MODE REJECTION vs FREQUENCY 140 120 100 100 1k 10k Frequency (Hz) OPEN-LOOP VOLTAGE GAIN vs SUPPLY ...

Page 8

TYPICAL PERFORMANCE CURVES + 15VDC, unless otherwise noted OPA27 SMALL SIGNAL TRANSIENT RESPONSE +60 +40 +20 0 – VCL C = 15pF L –40 –60 0 0.5 1 1.5 ...

Page 9

... Above about 15k the Burr-Brown OPA111 low-noise FET operational amplifier is recommended for lower total noise than the OPA27 (see Figure 5). +V ...

Page 10

Input OPA37 3 250 500pF FIGURE 9. High Slew Rate Unity-Gain Inverting Amplifier. 6 Total Gain = 741 noise with circuit well-shielded from air currents and RFI. (Note scale change.) B. OP-07AH with circuit ...

Page 11

... 4.75k TTL DG188 In Offset Trim FIGURE 15. High Performance Synchronous Demodulator. Gain = 100 For gain = 1000 use INA106 differential amplifier. 6 Bandwidth 500kHz Burr-Brown INA105 Differential Amplifier 25k 25k 3 25k 6 0.1µF Output 2k FIGURE 14. Long-Wavelength Infrared Detector Amplifier. Balance 500 ...

Page 12

Input FIGURE 16. Ultra-Low Noise “N” Stage Parallel Amplifier. ® OPA27, 37 Gain = –1010V/V Full Power Bandwidth 180kHz Gain Bandwidth 500MHz Equivalent Noise Resistance 50 2k Signal-to-Noise Ratio since amplifier noise is 2 uncorrelated. ...

Page 13

OPA27 3 Input FIGURE 17. Unity-Gain Buffer. 200 VIRTEC V1000 2 50 Planar Tunnel Input 0.01µF Diode 3 RFC 200 500pF FIGURE 19. RF Detector and Video Amplifier. Airpax ...

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