OPA634 Datasheet, PDF (1/18 Pages) Burr-Brown (TI) – Wideband, Single Supply OPERATIONAL AMPLIFIERS

OPA634
OPA635
OPA634
www.ti.com
TM _{Wideband, Single-Supply}
OPERATIONAL AMPLIFIERS
FEATURES
q HIGH BANDWIDTH: 150MHz (G = +2)
q +3V TO +10V SUPPLY 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 PACKAGE
APPLICATIONS
q SINGLE-SUPPLY ADC INPUT BUFFERS
q SINGLE SUPPLY VIDEO LINE DRIVERS
q WIRELESS LAN IF AMPLIFIERS
q CCD IMAGING CHANNELS
q LOW-POWER ULTRASOUND
+3V
2.26kΩ
Disable
+3V
374Ω
V_IN
DIS
OPA635
100Ω
Pwrdn
22pF
ADS900
10-Bit
20Msps
562Ω
750Ω
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 product (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, distor-
tion performance improves as the signal swing is de-
creased.
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
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
SBOS097A
Printed in U.S.A. February, 2001