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OPA642UB Datasheet

  • OPA642UB

  • Wideband, Low Distortion, Low Gain OPERATIONAL AMPLIFIER

  • 15頁

  • BB

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廬
OPA
642
A
OPA
642
658
OP
OPA642
Wideband, Low Distortion, Low Gain
OPERATIONAL AMPLIFIER
FEATURES
q
LOW DISTORTION: 鈥?5dBc at 5MHz
q
GAIN OF +1 BANDWIDTH: 400MHz
q
AVAILABLE IN SOT23-5 PACKAGE
q
HIGH OPEN LOOP GAIN: 95dB
q
HIGH COMMON-MODE REJECTION: 90dB
q
FAST 12-BIT SETTLING: 13ns (0.01%)
q
LOW NOISE: 2.7nV/鈭欻z
q
HIGH OUTPUT CURRENT:
鹵
60mA
q
VERY LOW DIFF GAIN/PHASE ERROR:
0.007%/0.008
擄
APPLICATIONS
q
ADC/DAC BUFFER AMPLIFIER
q
LOW DISTORTION IF AMPLIFIER
q
HIGH RESOLUTION IMAGING
q
MEDICAL IMAGING
q
LOW NOISE PREAMPLIFIER
q
HIGH CMR DIFFERENCING AMPLIFIER
q
TEST INSTRUMENTATION
q
PROFESSIONAL AUDIO
DESCRIPTION
The OPA642 provides a level of speed and dynamic
range previously unattainable in a monolithic op amp.
Using a unity gain stable voltage feedback architec-
ture with two internal gain stages, the OPA642 achieves
exceptionally low harmonic distortion over a wide
frequency range. The 鈥渃lassic鈥?differential input pro-
vides all the familiar benefits of precision op amps,
such as bias current cancellation and very low invert-
ing current noise compared with wideband current
feedback op amps. Fast settling time, excellent differ-
ential gain/phase performance, low voltage noise and
high output current drive make the OPA642 ideal for
most high dynamic range applications.
Unity gain stability makes the OPA642 particularly
suitable for low gain differential amplifiers,
transimpedance amplifiers, gain of +2 video line driv-
ers, wideband integrators and low distortion ADC buff-
ers. Where higher gain or even lower harmonic distor-
tion is required, consider the OPA643鈥攁 higher gain-
bandwidth and lower noise version of the OPA642
+5V
5k鈩?/div>
REFT
0.1碌F
+5V
1Vp-p
5MHz
clk
2Vp-p
0.1碌F
24鈩?/div>
100pF
鈥?V
402鈩?/div>
10MSPS
Analog
Input
12-Bit
10MSPS
ADS804
OPA642
Measured
80dB SFDR
5k鈩?/div>
REFB
0.1碌F
402鈩?/div>
High Dynamic Range 10MSPS Digitizer
International Airport Industrial Park 鈥?Mailing Address: PO Box 11400, Tucson, AZ 85734 鈥?Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 鈥?Tel: (520) 746-1111 鈥?Twx: 910-952-1111
Internet: http://www.burr-brown.com/ 鈥?FAXLine: (800) 548-6133 (US/Canada Only) 鈥?Cable: BBRCORP 鈥?Telex: 066-6491 鈥?FAX: (520) 889-1510 鈥?Immediate Product Info: (800) 548-6132
廬
漏
1993 Burr-Brown Corporation
1
PDS-1190F
Printed in U.S.A. February, 1998
OPA642

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