OPA832 Datasheet, PDF (1/26 Pages) Burr-Brown (TI) – Low-Power, Single-Supply, Fixed-Gain Video Buffer Amplifier

OPA832
SBOS266B − JUNE 2003 − 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:
+2.8V to +11V Single Supply
±1.4V to ±5.5V Dual Supply
D INPUT RANGE INCLUDES GROUND ON
SINGLE SUPPLY
D 4.9V_PP OUTPUT SWING ON +5V SUPPLY
D HIGH SLEW RATE: 350V/µsec
D LOW INPUT VOLTAGE NOISE: 9.3nV/√Hz
D AVAILABLE IN AN SOT23 PACKAGE
APPLICATIONS
D SINGLE-SUPPLY VIDEO LINE DRIVERS
D CCD IMAGING CHANNELS
D LOW-POWER ULTRASOUND
D PORTABLE CONSUMER ELECTRONICS
Video DAC
976Ω
V_I
80.6Ω
+3.3V
OPA832
400Ω
400Ω
75Ω
V_O
75Ω Load
V_O
= 1V/V
V_I
Single-Supply, Low-Cost Video Line Driver
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 ±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/µs), 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/√Hz 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, −1, or +2,
consider using the OPA830.
RELATED PRODUCTS
DESCRIPTION
SINGLES DUALS
Medium Speed
Medium Speed,
Fixed Gain
OPA830
—
OPA2830
OPA2832
TRIPLES
—
OPA3832
QUADS
OPA4830
—
LARGE−SIGNAL BANDWIDTH
(1V_PP AT MATCHED LOAD)
0
−3
−6
−9
1
10
100
Frequency (MHz)
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PRODUCTION DATA information is current as of publication date. Products
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Production processing does not necessarily include testing of all parameters.
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