OPA211-EP_15 Datasheet, PDF (1/26 Pages) Texas Instruments – 1.1nV/√Hz NOISE, LOW POWER, PRECISION OPERATIONAL AMPLIFIER

OPA211-EP
SBOS638 – JUNE 2012
1.1nV/√Hz NOISE, LOW POWER, PRECISION
OPERATIONAL AMPLIFIER
Check for Samples: OPA211-EP
1 FEATURES
• LOW VOLTAGE NOISE: 1.1nV/√Hz at 1kHz
• INPUT VOLTAGE NOISE:
80nV_PP (0.1Hz to 10Hz)
• THD+N: –136dB (G = 1, f = 1kHz)
• OFFSET VOLTAGE: 180μV (max)
• OFFSET VOLTAGE DRIFT: 0.35μV/°C (typ)
• LOW SUPPLY CURRENT: 3.6mA/Ch (typ)
• UNITY-GAIN STABLE
• GAIN BANDWIDTH PRODUCT:
80MHz (G = 100)
45MHz (G = 1)
• SLEW RATE: 27V/μs
• 16-BIT SETTLING: 700ns
• WIDE SUPPLY RANGE:
±2.25V to ±18V, +4.5V to +36V
• RAIL-TO-RAIL OUTPUT
• OUTPUT CURRENT: 30mA
1
2 APPLICATIONS
• PLL LOOP FILTER
• LOW-NOISE, LOW-POWER SIGNAL
PROCESSING
• 16-BIT ADC DRIVERS
• DAC OUTPUT AMPLIFIERS
• ACTIVE FILTERS
• LOW-NOISE INSTRUMENTATION AMPS
• ULTRASOUND AMPLIFIERS
• PROFESSIONAL AUDIO PREAMPLIFIERS
• LOW-NOISE FREQUENCY SYNTHESIZERS
• INFRARED DETECTOR AMPLIFIERS
• HYDROPHONE AMPLIFIERS
• GEOPHONE AMPLIFIERS
• MEDICAL
3 SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
• CONTROLLED BASELINE
• ONE ASSEMBLY/TEST SITE
• ONE FABRICATION SITE
• AVAILABLE IN MILITARY (–55°C/125°C)
TEMPERATURE RANGE ⁽¹⁾
• EXTENDED PRODUCT LIFE CYCLE
• EXTENDED PRODUCT-CHANGE
NOTIFICATION
• PRODUCT TRACEABILITY
4 DESCRIPTION
(1) Additional temperature ranges available - contact factory
The OPA211 series of precision operational amplifiers achieves very low 1.1nV/√Hz noise density with a supply
current of only 3.6mA. This series also offers rail-to-rail output swing, which maximizes dynamic range.
The extremely low voltage and low current noise, high speed, and wide output swing of the OPA211 series make
these devices an excellent choice as a loop filter amplifier in PLL applications.
In precision data acquisition applications, the OPA211 series of op amps provides 700ns settling time to 16-bit
accuracy throughout 10V output swings. This ac performance, combined with only 125μV of offset and
0.35μV/°C of drift over temperature, makes the OPA211 ideal for driving high-precision 16-bit analog-to-digital
converters (ADCs) or buffering the output of high-resolution digital-to-analog converters (DACs).
The OPA211 is specified over a wide dual-power supply range of ±2.25V to ±18V, or for single-supply operation
from +4.5V to +36V.
The OPA211 is available in a small MSOP-8 package. This op amp is specified from T_A = –55°C to +125°C.
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
DATA.