®
OPA2631
OPA2631
For most current data sheet and other product
information, visit www.burr-brown.com
TM
Dual, Low Power, Single-Supply
OPERATIONAL AMPLIFIER
DESCRIPTION
FEATURES
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 complemen-
tary 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 differen-
tial gain and phase errors also make it ideal for single-
supply consumer video products.
● HIGH BANDWIDTH: 75MHz (G = +2)
● LOW SUPPLY CURRENT: 6mA/ch
● +3V AND +5V OPERATION
● INPUT RANGE INCLUDES GROUND
● 4.8V OUTPUT SWING ON +5V SUPPLY
● HIGH SLEW RATE: 100V/µs
● LOW INPUT VOLTAGE NOISE: 6nV/√Hz
Low distortion operation is ensured by the high gain
bandwidth (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 improves as
APPLICATIONS
● DIFFERENTIAL RECEIVERS/DRIVERS
● ACTIVE FILTERS
● MATCHED I AND Q CHANNEL AMPLIFIERS
● CCD IMAGING CHANNELS
the signal swing is decreased. A low 6nV/√Hz input
voltage noise supports wide dynamic range operation.
● LOW POWER ULTRASOUND
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.
● PORTABLE CONSUMER ELECTRONICS
SPICE model available at www.burr-brown.com
RELATED PRODUCTS
+3V
SINGLES
DUALS
2.26kΩ
+3V
Medium Speed, No Disable
With Disable
OPA631
OPA632
OPA2631
—
374Ω
VIN
100Ω
ADS901
10-Bit
High Speed, No Disable
With Disable
OPA634
OPA635
OPA2634
—
1/2
OPA2631
20Msps
22pF
562Ω
750Ω
International Airport Industrial Park
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Mailing Address: PO Box 11400, Tucson, AZ 85734
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Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706
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Tel: (520) 746-1111
Twx: 910-952-1111 Internet: http://www.burr-brown.com/
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Cable: BBRCORP Telex: 066-6491
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FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1999 Burr-Brown Corporation
PDS-1378A
Printed in U.S.A. August, 1999