Datasheet
OPA211
OPA2211
OPA211
OP
A2211
OPA211
1
FEATURES DESCRIPTION
APPLICATIONS
INPUTVOLTAGENOISEDENSITYvsFREQUENCY
VoltageNoiseDensity(nV/ )
ÖHz
0.1
100
1
Frequency(Hz)
100k101
10
100 1k 10k
OPA211
OPA2211
www.ti.com
...................................................................................................................................................... SBOS377G – OCTOBER 2006 – REVISED MAY 2009
1.1nV/ √ Hz Noise, Low Power, Precision
Operational Amplifier in Small DFN-8 Package
23
• LOW VOLTAGE NOISE: 1.1nV/ √ Hz at 1kHz
The OPA211 series of precision operational
amplifiers achieves very low 1.1nV/ √ Hz noise density
• INPUT VOLTAGE NOISE:
with a supply current of only 3.6mA. This series also
80nV
PP
(0.1Hz to 10Hz)
offers rail-to-rail output swing, which maximizes
• THD+N: – 136dB (G = 1, f = 1kHz)
dynamic range.
• OFFSET VOLTAGE: 125 µ V (max)
The extremely low voltage and low current noise,
• OFFSET VOLTAGE DRIFT: 0.35 µ V/ ° C (typ)
high speed, and wide output swing of the OPA211
• LOW SUPPLY CURRENT: 3.6mA/Ch (typ)
series make these devices an excellent choice as a
loop filter amplifier in PLL applications.
• UNITY-GAIN STABLE
• GAIN BANDWIDTH PRODUCT:
In precision data acquisition applications, the
OPA211 series of op amps provides 700ns settling
80MHz (G = 100)
time to 16-bit accuracy throughout 10V output swings.
45MHz (G = 1)
This ac performance, combined with only 125 µ V of
• SLEW RATE: 27V/ µ s
offset and 0.35 µ V/ ° C of drift over temperature, makes
• 16-BIT SETTLING: 700ns
the OPA211 ideal for driving high-precision 16-bit
analog-to-digital converters (ADCs) or buffering the
• WIDE SUPPLY RANGE:
output of high-resolution digital-to-analog converters
± 2.25V to ± 18V, +4.5V to +36V
(DACs).
• RAIL-TO-RAIL OUTPUT
The OPA211 series is specified over a wide
• OUTPUT CURRENT: 30mA
dual-power supply range of ± 2.25V to ± 18V, or for
• DFN-8 (3mm × 3mm), MSOP-8, AND SO-8
single-supply operation from +4.5V to +36V.
The OPA211 is available in the small DFN-8 (3mm ×
3mm), MSOP-8, and SO-8 packages. A dual version,
• PLL LOOP FILTER
the OPA2211, is available in the DFN-8 (3mm ×
• LOW-NOISE, LOW-POWER SIGNAL
3mm) or an SO-8 PowerPAD™ package. This series
PROCESSING
of op amps is specified from T
A
= – 40 ° C to +125 ° C.
• 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
1
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.
2 PowerPAD is a trademark of Texas Instruments.
3 All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006 – 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.