OPA631 Datasheet, PDF (1/17 Pages) Burr-Brown (TI) – Low Power, Single-Supply OPERATIONAL AMPLIFIERS TM

®
OPA631
OPA631
OPA632
For most current data sheet and other product
information, visit www.burr-brown.com
TM _{Low Power, Single-Supply}
OPERATIONAL AMPLIFIERS
FEATURES
q HIGH BANDWIDTH: 75MHz (G = +2)
q LOW SUPPLY CURRENT: 6mA
q ZERO POWER DISABLE (OPA632)
q +3V AND +5V 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
q AVAILABLE IN SOT23 PACKAGE
APPLICATIONS
q SINGLE SUPPLY ADC INPUT BUFFER
q SINGLE SUPPLY VIDEO LINE DRIVER
q CCD IMAGING CHANNELS
q LOW POWER ULTRASOUND
q PLL INTEGRATORS
q PORTABLE CONSUMER ELECTRONICS
+3V
2.26kΩ
Disable
+3V
374Ω
V_IN
562Ω
DIS
OPA632
Pwrdn
100Ω
750Ω
22pF
ADS901
10-Bit
20Msps
DESCRIPTION
The OPA631 and OPA632 are low power, high-speed,
voltage-feedback amplifiers 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 complementary common-emitter outputs pro-
vides 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 them ideal for single-supply consumer video
products.
Low distortion operation is ensured by the high gain
bandwidth (68MHz) and slew rate (100V/µs), making
the OPA631 and OPA632 ideal input buffer stages 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
input voltage noise supports wide dynamic range op-
eration. Channel multiplexing or system power reduc-
tion can be achieved using the high speed disable line.
Power dissipation can be reduced to zero by taking the
disable line High.
The OPA631 and OPA632 are available in an industry-
standard SO-8 package. The OPA631 is also available
in an ultra-small SOT23-5 package, while the OPA632
is available in the SOT23-6. Where higher full-power
bandwidth and lower distortion are required in a single-
supply operational amplifier, consider the OPA634
and OPA635.
RELATED PRODUCTS
Medium Speed, No Disable
With Disable
High Speed, No Disable
With Disable
SINGLES
OPA631
OPA632
OPA634
OPA635
DUALS
OPA2631
—
OPA2634
—
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© 1999 Burr-Brown Corporation
PDS-1377A
Printed in U.S.A. June, 1999