OPA832
SBOS266E − JUNE 2003 − REVISED AUGUST 2008
Low-Power, Single-Supply, Fixed-Gain
Video Buffer Amplifier
FD EATURES
DESCRIPTION
HIGH BANDWIDTH: 80MHz (G = +2)
LOW SUPPLY CURRENT: 3.9mA
FLEXIBLE SUPPLY RANGE:
+2.8V to +11V Single Supply
1.4V to 5.5V Dual Supply
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 sup-
ported. 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 sup-
ply. The high output drive current and low differential
gain and phase errors also make it ideal for single-sup-
ply consumer video products.
D
D
D
INPUT RANGE INCLUDES GROUND ON
SINGLE SUPPLY
D
D
D
D
4.9V
OUTPUT SWING ON +5V SUPPLY
PP
HIGH SLEW RATE: 350V/µsec
LOW INPUT VOLTAGE NOISE: 9.3nV/√Hz
Pb-FREE SOT23 PACKAGE
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 im-
proves as the signal swing is decreased. A low 9.3nV/√
Hz input voltage noise supports wide dynamic range op-
eration.
AD PPLICATIONS
SINGLE-SUPPLY VIDEO LINE DRIVERS
D
D
D
CCD IMAGING CHANNELS
LOW-POWER ULTRASOUND
PORTABLE CONSUMER ELECTRONICS
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
TRIPLES
QUADS
Medium Speed
Medium Speed,
Fixed Gain
OPA830
OPA2830
—
OPA4830
—
OPA2832
OPA3832
—
LARGE−SIGNAL BANDWIDTH
(1VPP AT MATCHED LOAD)
+3.3V
0
Video DAC
Ω
976
VI
Ω
75
Ω
80.6
−
−
−
3
6
9
I I
OPA832
VO
Ω
75 Load
Ω
400
VO
= 1V/V
VI
Ω
400
1
10
100
Single-Supply, Low-Cost Video Line Driver
Frequency (MHz)
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.
ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆꢇ ꢂꢈ ꢃ ꢉꢆꢉ ꢊꢋ ꢌꢍ ꢎ ꢏꢐ ꢑꢊꢍꢋ ꢊꢒ ꢓꢔ ꢎ ꢎ ꢕꢋꢑ ꢐꢒ ꢍꢌ ꢖꢔꢗ ꢘꢊꢓ ꢐꢑꢊ ꢍꢋ ꢙꢐ ꢑꢕꢚ ꢀꢎ ꢍꢙꢔ ꢓꢑꢒ
ꢓ ꢍꢋ ꢌꢍꢎ ꢏ ꢑꢍ ꢒ ꢖꢕ ꢓ ꢊ ꢌꢊ ꢓ ꢐ ꢑꢊ ꢍꢋꢒ ꢖ ꢕꢎ ꢑꢛꢕ ꢑꢕ ꢎ ꢏꢒ ꢍꢌ ꢆꢕꢜ ꢐꢒ ꢇꢋꢒ ꢑꢎ ꢔꢏ ꢕꢋꢑ ꢒ ꢒꢑ ꢐꢋꢙ ꢐꢎ ꢙ ꢝ ꢐꢎ ꢎ ꢐ ꢋꢑꢞꢚ
ꢀꢎ ꢍ ꢙꢔꢓ ꢑ ꢊꢍ ꢋ ꢖꢎ ꢍ ꢓ ꢕ ꢒ ꢒ ꢊꢋ ꢟ ꢙꢍ ꢕ ꢒ ꢋꢍꢑ ꢋꢕ ꢓꢕ ꢒꢒ ꢐꢎ ꢊꢘ ꢞ ꢊꢋꢓ ꢘꢔꢙ ꢕ ꢑꢕ ꢒꢑꢊ ꢋꢟ ꢍꢌ ꢐꢘ ꢘ ꢖꢐ ꢎ ꢐꢏ ꢕꢑꢕ ꢎ ꢒꢚ
Copyright 2003−2008, Texas Instruments Incorporated
www.ti.com