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OPA211
OPA2211
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SBOS377A–OCTOBER 2006–REVISED FEBRUARY 2007
1.1nV/√Hz Noise, Low Power, Precision
Operational Amplifier in Tiny DFN-8 Package
FEATURES
DESCRIPTION
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LOW-VOLTAGE NOISE: 1.1nV/√Hz at 1kHz
100nVPP INPUT VOLTAGE NOISE, 0.1Hz–10Hz
LOW OFFSET VOLTAGE: 100µV (max)
LOW OFFSET VOLTAGE DRIFT: 0.2µV/°C (typ)
LOW SUPPLY CURRENT: 3.6mA/Ch
UNITY GAIN STABLE
The OPA211 series achieves very low 1.1nV/√Hz
noise density with a supply current of only 3.6mA. It
also offers rail-to-rail output swing, which helps to
maximize dynamic range.
The OPA211 series’ extremely low voltage and
current noise, high speed and wide output swing
make it an excellent choice as a loop filter amplifier
in PLL applications.
GAIN BANDWIDTH PRODUCT:
80MHz (G = 100)
In precision data acquisition applications, the
OPA211 series of op amps provide <1µs settling
time to 16-bit accuracy even for 10V output swings.
This ac performance, combined with only 100µV of
offset and low drift over temperature, make the
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SLEW RATE: 27V/µs
WIDE SUPPLY RANGE:
±2.25V to ±18V, +4.5V to +36V
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RAIL-TO-RAIL OUTPUT
OUTPUT CURRENT: 30mA
SHUTDOWN: 20µA (max)
OPA211
high-precision analog-to-digital converters (ADCs) or
buffering the outputs of high-resolution
digital-to-analog converters (DACs).
highly
suitable
for
driving
fast,
AVAILABLE IN TINY DFN-8 (3x3mm), MSOP-8,
SO-8
The OPA211 is specified over the very wide
dual-power supply range of ±2.25V to ±18V, or
single-supply operation from +4.5V to +36V.
APPLICATIONS
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PLL LOOP FILTER
LOW-NOISE, LOW-POWER SIGNAL
PROCESSING
HIGH-PERFORMANCE ADC DRIVERS
HIGH-PERFORMANCE DAC OUTPUT
AMPLIFIER
The OPA211 is available in the tiny DFN-8 (3×3mm)
and MSOP-8 and SO-8 packages. A dual version,
the OPA2211, is available in the DFN-8 (3×3mm) or
an MSOP-8 package. This series of op amps is
specified from –40°C to +125°C.
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OPA211
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ACTIVE FILTERS
NC
-IN
+IN
V-
1
2
3
4
8
7
6
5
Enable
V+
LOW-NOISE INSTRUMENTATION AMPS
ULTRASOUND AMPLIFIERS
PROFESSIONAL AUDIO PREAMPLIFIERS
LOW-NOISE FREQUENCY SYNTHESIZERS
INFRARED DETECTOR AMPLIFIERS
HYDROPHONE AMPLIFIERS
MEDICAL
OUT
NC
MSOP-8
OPA2211
OUT A
-IN A
+IN A
V-
1
2
3
4
8
7
6
5
V+
A
OUT B
-IN B
+IN B
B
MSOP-8
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.
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PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2006–2007, Texas Instruments Incorporated