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Burr-Brown - Precision High-Speed Difet OPERATIONAL AMPLIFIERS

Numéro de référence OPA637BM
Description Precision High-Speed Difet OPERATIONAL AMPLIFIERS
Fabricant Burr-Brown 
Logo Burr-Brown 





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OPA637BM fiche technique
®
OPA627
OPA627
OPA627
OPA637
Precision High-Speed
Difet ® OPERATIONAL AMPLIFIERS
FEATURES
q VERY LOW NOISE: 4.5nV/Hz at 10kHz
q FAST SETTLING TIME:
OPA627—550ns to 0.01%
OPA637—450ns to 0.01%
q LOW VOS: 100µV max
q LOW DRIFT: 0.8µV/°C max
q LOW IB: 5pA max
q OPA627: Unity-Gain Stable
q OPA637: Stable in Gain 5
APPLICATIONS
q PRECISION INSTRUMENTATION
q FAST DATA ACQUISITION
q DAC OUTPUT AMPLIFIER
q OPTOELECTRONICS
q SONAR, ULTRASOUND
q HIGH-IMPEDANCE SENSOR AMPS
q HIGH-PERFORMANCE AUDIO CIRCUITRY
q ACTIVE FILTERS
DESCRIPTION
The OPA627 and OPA637 Difet operational amplifi-
ers provide a new level of performance in a precision
FET op amp. When compared to the popular OPA111
op amp, the OPA627/637 has lower noise, lower offset
voltage, and much higher speed. It is useful in a broad
range of precision and high speed analog circuitry.
The OPA627/637 is fabricated on a high-speed, dielec-
trically-isolated complementary NPN/PNP process. It
operates over a wide range of power supply voltage—
±4.5V to ±18V. Laser-trimmed Difet input circuitry
provides high accuracy and low-noise performance
comparable with the best bipolar-input op amps.
High frequency complementary transistors allow in-
creased circuit bandwidth, attaining dynamic perform-
ance not possible with previous precision FET op
amps. The OPA627 is unity-gain stable. The OPA637
is stable in gains equal to or greater than five.
Difet fabrication achieves extremely low input bias
currents without compromising input voltage noise
performance. Low input bias current is maintained
over a wide input common-mode voltage range with
unique cascode circuitry.
The OPA627/637 is available in plastic DIP, SOIC
and metal TO-99 packages. Industrial and military
temperature range models are available.
Trim
1
Trim
5
7
+VS
Output
6
+In –In
32
Difet ®, Burr-Brown Corp.
–VS
4
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
©1989 Burr-Brown Corporation
PDS-998H
Printed in U.S.A. March, 1998

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