OPA642 Datasheet, PDF (1/15 Pages) Burr-Brown (TI) – Wideband, Low Distortion, Low Gain OPERATIONAL AMPLIFIER

®
OPA642
O^O_P^P_A^A6₆⁴₅2 ₈
OPA642
Wideband, Low Distortion, Low Gain
OPERATIONAL AMPLIFIER
FEATURES
q LOW DISTORTION: –95dBc 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/√Hz
q HIGH OUTPUT CURRENT: ±60mA
q VERY LOW DIFF GAIN/PHASE ERROR:
0.007%/0.008°
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 “classic” 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—a higher gain-
bandwidth and lower noise version of the OPA642
+5V
1Vp-p
5MHz
+5V
OPA642
2Vp-p ^0.1µF
5kΩ
REFT
0.1µF
clk
ADS804
24Ω
10MSPS
Analog
Input
12-Bit
10MSPS
100pF
Measured
80dB SFDR
–5V
402Ω
402Ω
5kΩ
REFB
0.1µF
High Dynamic Range 10MSPS Digitizer
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone] • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: [phone] (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
©_{1993 Burr-Brown Corporation}
PDS-11¹90F
®
OPA642 _{Printed in U.S.A. February, 1998}