OPA832
SBOS266B 鈭?JUNE 2003 鈭?REVISED SEPTEMBER 2004
Low-Power, Single-Supply, Fixed-Gain
Video Buffer Amplifier
FEATURES
D
HIGH BANDWIDTH: 80MHz (G = +2)
D
LOW SUPPLY CURRENT: 3.9mA
D
FLEXIBLE SUPPLY RANGE:
D
D
D
D
D
+2.8V to +11V Single Supply
鹵1.4V
to
鹵5.5V
Dual Supply
INPUT RANGE INCLUDES GROUND ON
SINGLE SUPPLY
4.9V
PP
OUTPUT SWING ON +5V SUPPLY
HIGH SLEW RATE: 350V/碌sec
LOW INPUT VOLTAGE NOISE: 9.3nV/鈭欻z
AVAILABLE IN AN SOT23 PACKAGE
DESCRIPTION
The OPA832 is a low-power, high-speed, fixed-gain amplifier
designed to operate on a single +3.3V or +5V supply.
Operation on
鹵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 provides 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
it ideal for single-supply consumer video products.
Low distortion operation is ensured by the high gain
bandwidth product (200MHz) and slew rate (850V/碌s), making
the OPA832 an ideal input buffer stage to 3V and 5V CMOS
converters. Unlike other low-power, single-supply amplifiers,
distortion performance improves as the signal swing is
decreased. A low 9.3nV/鈭欻z input voltage noise supports
wide dynamic range operation.
The OPA832 is available in an industry-standard SO-8
package. The OPA832 is also available in an ultra-small
SOT23-5 package. For gains other than +1, 鈭?, or +2,
consider using the OPA830.
APPLICATIONS
D
D
D
D
SINGLE-SUPPLY VIDEO LINE DRIVERS
CCD IMAGING CHANNELS
LOW-POWER ULTRASOUND
PORTABLE CONSUMER ELECTRONICS
RELATED PRODUCTS
DESCRIPTION
Medium Speed
Medium Speed,
Fixed Gain
SINGLES
OPA830
鈥?/div>
DUALS
OPA2830
OPA2832
TRIPLES
鈥?/div>
OPA3832
QUADS
OPA4830
鈥?/div>
+3.3V
Video DAC
V
I
976
鈩?/div>
75
鈩?/div>
LARGE鈭扴IGNAL BANDWIDTH
(1V
PP
AT MATCHED LOAD)
0
80.6
鈩?/div>
I
I
OPA832
75
鈩?/div>
Load
400
鈩?/div>
V
O
400鈩?/div>
V
I
V
O
鈭?
Gain (dB)
鈭?
= 1V/V
鈭?
Single-Supply, Low-Cost Video Line Driver
1
10
Frequency (MHz)
100
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright
錚?/div>
2003鈭?004, Texas Instruments Incorporated
www.ti.com
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