
FEATURES
HIGH BANDWIDTH:
250MHz (G = +1)
110MHz (G = +2)
LOW SUPPLY CURRENT: 3.9mA (V
S
= +5V)
FLEXIBLE SUPPLY RANGE:
±
1.4V to
±
5.5V Dual Supply
+2.8V to +11V Single Supply
INPUT RANGE INCLUDES GROUND ON
SINGLE SUPPLY
4.88V OUTPUT SWING ON +5V SUPPLY
HIGH SLEW RATE: 550V/ns
LOW INPUT VOLTAGE NOISE: 9.2nV/
√
Hz
Pb-FREE SOT23 PACKAGE
APPLICATIONS
SINGLE-SUPPLY ANALOG-TO-DIGITAL
CONVERTER (ADC) INPUT BUFFERS
SINGLE-SUPPLY VIDEO LINE DRIVERS
CCD IMAGING CHANNELS
LOW-POWER ULTRASOUND
PLL INTEGRATORS
PORTABLE CONSUMER ELECTRONICS
OPA830
V
IN
750
562
2.26k
374
22pF
+3V
100
+3V
THS1040
10Bit
30MSPS
DC-Coupled, +3V ADC Driver
DESCRIPTION
The OPA830 is a low-power, single-supply, wideband,
voltage-feedback amplifier designed to operate on a single
+3V or +5V supply. Operation on
±
5V or +10V supplies is also
supported. The input range extends below the negative
supply and to within 1.7V of the positive supply. Using
complementary common-emitter outputs provides an output
swing to within 25mV of either supply while driving 150
. High
output drive current (
±
80mA) and low differential gain and
phase errors also make them ideal for single-supply
consumer video products.
Low distortion operation is ensured by the high gain
bandwidth product (110MHz) and slew rate (550V/
μ
s), making
the OPA830 an ideal input buffer stage to 3V and 5V CMOS
ADCs. Unlike other low-power, single-supply amplifiers,
distortion performance improves as the signal swing is
decreased. A low 9.2nV/
√
Hz input voltage noise supports
wide dynamic range operation.
The OPA830 is available in an industry-standard SO-8
package. The OPA830 is also available in an ultra-small
SOT23-5 package. For fixed-gain line driver applications,
consider the OPA832.
RELATED PRODUCTS
DESCRIPTION
SINGLES
DUALS
TRIPLES
QUADS
Rail-to-Rail
Rail-to-Rail Fixed Gain
General-Purpose
(1800V/
μ
s slew rate)
Low-Noise,
High DC Precision
—
OPA2830
OPA2832
—
OPA4830
—
OPA832
OPA3832
OPA690
OPA2690
OPA3690
—
OPA820
OPA2822
—
OPA4820
OPA830
SBOS263B AUGUST 2004 REVISED JANUARY 2005
Low-Power, Single-Supply, Wideband
Operational Amplifier
!
!
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Copyright
20042005, Texas Instruments Incorporated
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