®
OPA634
OPA635
OPA634
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information, visit www.burr-brown.com
TM
Wideband, Single Supply
OPERATIONAL AMPLIFIERS
FEATURES
APPLICATIONS
● HIGH BANDWIDTH: 150MHz (G = +2)
● SINGLE SUPPLY ADC INPUT BUFFER
● +3V AND +5V OPERATION
● SINGLE SUPPLY VIDEO LINE DRIVER
● WIRELESS LAN IF AMPLIFIER
● CCD IMAGING CHANNELS
● ZERO POWER DISABLE (OPA635)
● INPUT RANGE INCLUDES GROUND
● 4.8V OUTPUT SWING ON +5V SUPPLY
● HIGH OUTPUT CURRENT: 80mA
● HIGH SLEW RATE: 250V/µs
● LOW POWER ULTRASOUND
● LOW INPUT VOLTAGE NOISE: 5.6nV/√HZ
● AVAILABLE IN SOT23 PACKAGES
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.
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.
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
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.
SINGLES
DUALS
Medium Speed, No Disable
With Disable
OPA631
OPA632
OPA2631
—
High Speed, No Disable
With Disable
OPA634
OPA635
OPA2634
—
+3V
Disable
+3V
2.26kΩ
374Ω
VIN
Pwrdn
DIS
100Ω
ADS900
10-Bit
OPA635
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-1465A
Printed in U.S.A. June, 1999