OPA2631 Datasheet, PDF (1/18 Pages) Burr-Brown (TI) – Dual, Low Power, Single-Supply OPERATIONAL AMPLIFIER

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OPA2631
OPA2631
TM _{Dual, Low-Power, Single-Supply}
OPERATIONAL AMPLIFIER
FEATURES
q HIGH BANDWIDTH: 75MHz (G = +2)
q LOW SUPPLY CURRENT: 6mA/chan
q +3V TO +10V SUPPLY OPERATION
q INPUT RANGE INCLUDES GROUND
q 4.8V OUTPUT SWING ON +5V SUPPLY
q HIGH SLEW RATE: 100V/µs
q LOW INPUT VOLTAGE NOISE: 6nV/√Hz
APPLICATIONS
q DIFFERENTIAL RECEIVERS/DRIVERS
q ACTIVE FILTERS
q MATCHED I AND Q CHANNEL AMPLIFIERS
q CCD IMAGING CHANNELS
q LOW POWER ULTRASOUND
q PORTABLE CONSUMER ELECTRONICS
SPICE model available at www.ti.com
374Ω
V_IN
+3V
2.26kΩ
1/2
OPA2631
562Ω
750Ω
+3V
100Ω
22pF
ADS901
10-Bit
20Msps
DESCRIPTION
The OPA2631 is a dual, low-power, voltage-feedback
amplifier designed to operate on a single +3V or +5V
supply. Operation on ±5V or +10V supplies is also
supported. The input range extends below ground and
to within 1V of the positive supply. Using comple-
mentary common-emitter outputs provides an output
swing to within 30mV of ground and 130mV of the
positive supply. The high output drive current and low
differential gain and phase errors also make it ideal for
single-supply consumer video products.
Low-distortion operation is ensured by the high gain
bandwidth product (68MHz) and slew rate (100V/µs),
making the OPA2631 an ideal input buffer stage to 3V
and 5V CMOS converters. Unlike other low-power,
single-supply amplifiers, distortion performance im-
proves as the signal swing is decreased. A low
6nV/√Hz input voltage noise supports wide dynamic-
range operation.
The OPA2631 is available in an industry standard
SO-8 package. Where a single-channel, single-supply
operational amplifier is required, consider the OPA631
and OPA632. Where higher full-power bandwidth and
lower distortion are required, consider the OPA2634.
RELATED PRODUCTS
DESCRIPTION
Medium Speed, No Disable
With Disable
High Speed, No Disable
With Disable
SINGLES
OPA631
OPA632
OPA634
OPA635
DUALS
OPA2631
—
OPA2634
—
Copyright © 1999, Texas Instruments Incorporated
SBOS067A
Printed in U.S.A. February, 2001