OPA211 Datasheet, PDF (1/9 Pages) Texas Instruments – 1.1nV/Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package

BurrĆBrown Products
from Texas Instruments
OPA211
OPA211
OPA2211
OPA2211
OPA211
OPA2211
SBOS377A – OCTOBER 2006 – REVISED FEBRUARY 2007
1.1nV/√Hz Noise, Low Power, Precision
Operational Amplifier in Tiny DFN-8 Package
FEATURES
• LOW-VOLTAGE NOISE: 1.1nV/√Hz at 1kHz
• 100nV_PP 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
• GAIN BANDWIDTH PRODUCT:
80MHz (G = 100)
• SLEW RATE: 27V/µs
• WIDE SUPPLY RANGE:
±2.25V to ±18V, +4.5V to +36V
• RAIL-TO-RAIL OUTPUT
• OUTPUT CURRENT: 30mA
• SHUTDOWN: 20µA (max)
• AVAILABLE IN TINY DFN-8 (3x3mm), MSOP-8,
SO-8
APPLICATIONS
• PLL LOOP FILTER
• LOW-NOISE, LOW-POWER SIGNAL
PROCESSING
• HIGH-PERFORMANCE ADC DRIVERS
• HIGH-PERFORMANCE DAC OUTPUT
AMPLIFIER
• ACTIVE FILTERS
• LOW-NOISE INSTRUMENTATION AMPS
• ULTRASOUND AMPLIFIERS
• PROFESSIONAL AUDIO PREAMPLIFIERS
• LOW-NOISE FREQUENCY SYNTHESIZERS
• INFRARED DETECTOR AMPLIFIERS
• HYDROPHONE AMPLIFIERS
• MEDICAL
DESCRIPTION
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.
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
OPA211 highly suitable for driving fast,
high-precision analog-to-digital converters (ADCs) or
buffering the outputs of high-resolution
digital-to-analog converters (DACs).
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.
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.
OPA211
NC 1
-IN 2
+IN 3
V- 4
8 Enable
7 V+
6 OUT
5 NC
MSOP-8
OPA2211
OUT A 1
-IN A 2
+IN A 3
V- 4
A
B
8 V+
7 OUT B
6 -IN B
5 +IN B
MSOP-8
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