OP

A211

OP

A2211

OP

A211

OP

A2211

OP

A211

1

FEATURES

DESCRIPTION

APPLICATIONS

INPUTVOLTAGENOISEDENSITYvsFREQUENCY

0.1

100

1

Frequency(Hz)

100k

10

1

10

100

1k

10k

OPA211

OPA2211

www.ti.com

SBOS377D – OCTOBER 2006 – REVISED FEBRUARY 2008

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

offers rail-to-rail output swing, which maximizes

• THD+N: –136dB (G = 1, f = 1kHz)

dynamic range.

• OFFSET VOLTAGE: 125µV (max)

The extremely low voltage and low current noise,

• OFFSET VOLTAGE DRIFT: 0.35µV/°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

µV of

• SLEW RATE: 27V/µs

offset and 0.35

µV/°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

• DFN-8 (3×3mm), MSOP-8, AND SO-8

single-supply operation from +4.5V to +36V.

The OPA211 is available in the small DFN-8

(3

×3mm), MSOP-8, and SO-8 packages. A dual

• PLL LOOP FILTER

version, the OPA2211, is available in the DFN-8

• LOW-NOISE, LOW-POWER SIGNAL

(3

×3mm) or an SO-8 PowerPAD™ package. This

PROCESSING

• 16-BIT ADC DRIVERS

+125

°C.

• DAC OUTPUT AMPLIFIER

• 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 © 2006–2008, 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.