OPA832
SBOS266B − JUNE 2003 − REVISED SEPTEMBER 2004
Low-Power, Single-Supply, Fixed-Gain
Video Buffer Amplifier
FD EATURES
DESCRIPTION
HIGH BANDWIDTH: 80MHz (G = +2)
LOW SUPPLY CURRENT: 3.9mA
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.
D
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
D
D
D
4.9V
OUTPUT SWING ON +5V SUPPLY
PP
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.
HIGH SLEW RATE: 350V/µsec
LOW INPUT VOLTAGE NOISE: 9.3nV/√Hz
AVAILABLE IN AN SOT23 PACKAGE
AD PPLICATIONS
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.
SINGLE-SUPPLY VIDEO LINE DRIVERS
D
D
D
CCD IMAGING CHANNELS
LOW-POWER ULTRASOUND
PORTABLE CONSUMER ELECTRONICS
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
VO
OPA832
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 2003−2004, Texas Instruments Incorporated
www.ti.com