OPA634 Datasheet, PDF (1/17 Pages) Burr-Brown (TI) – Wideband, Single Supply OPERATIONAL AMPLIFIERS

®
OPA634
OPA634
OPA635
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TM _{Wideband, Single Supply}
OPERATIONAL AMPLIFIERS
FEATURES
q HIGH BANDWIDTH: 150MHz (G = +2)
q +3V AND +5V OPERATION
q ZERO POWER DISABLE (OPA635)
q INPUT RANGE INCLUDES GROUND
q 4.8V OUTPUT SWING ON +5V SUPPLY
q HIGH OUTPUT CURRENT: 80mA
q HIGH SLEW RATE: 250V/µs
q LOW INPUT VOLTAGE NOISE: 5.6nV/√HZ
q AVAILABLE IN SOT23 PACKAGES
APPLICATIONS
q SINGLE SUPPLY ADC INPUT BUFFER
q SINGLE SUPPLY VIDEO LINE DRIVER
q WIRELESS LAN IF AMPLIFIER
q CCD IMAGING CHANNELS
q LOW POWER ULTRASOUND
DESCRIPTION
The OPA634 and OPA635 are low power, voltage-
feedback, high-speed amplifiers designed to operate on
+3V or +5V single-supply voltages. Operation on ±5V
or +10V supplies is also supported. The input range
extends below ground and to within 1.2V of the positive
supply. Using complementary common-emitter outputs
provides an output swing to within 30mV of ground and
140mV of positive supply. The high output drive cur-
rent, low differential gain and phase errors make them
ideal for single-supply composite video line driving.
Low distortion operation is ensured by the high gain
bandwidth (140MHz) and slew rate (250V/µs). This
makes the OPA634 and OPA635 ideal input buffer
stages to 3V and 5V CMOS converters. Unlike other low
power, single-supply operational amplifiers, distortion
performance improves as the signal swing is decreased.
A low 5.6nV input voltage noise supports wide dynamic
range operation. Multiplexing or system power reduc-
tion can be achieved using the high-speed disable line
with the OPA635. Power dissipation can be reduced to
zero by taking the disable line High.
The OPA634 and OPA635 are available in an industry
standard SO-8 package. The OPA634 is also available in
an ultra-small SOT23-5 package, while the OPA635 is
available in the SOT23-6. Where lower supply current
and speed are required, consider the OPA631 and
OPA632.
RELATED PRODUCTS
SINGLES
DUALS
Medium Speed, No Disable
With Disable
OPA631
OPA632
OPA2631
—
High Speed, No Disable
With Disable
OPA634
OPA635
OPA2634
—
+3V
2.26kΩ
Disable
+3V
374Ω
V_IN
562Ω
DIS
OPA635
Pwrdn
100Ω
750Ω
22pF
ADS900
10-Bit
20Msps
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© 1999 Burr-Brown Corporation
PDS-1465A
Printed in U.S.A. June, 1999