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OPA2211-EP

SBOS761 – NOVEMBER 2015

OPA2211-EP 1.1-nV/

√Hz Noise, Low-Power, Precision Operational Amplifier

1 Features

3 Description

The OPA2211-EP series of precision operational

1

•

Low Voltage Noise: 1.1 nV/

√Hz at 1 kHz

amplifiers achieves very-low 1.1-nV/

√Hz noise density

•

with a supply current of only 3.6 mA. This series also

•

THD+N: –136 dB (G = 1, ƒ = 1 kHz)

offers rail-to-rail output swing, which maximizes

dynamic range.

•

Offset Voltage: 180

μV (Max)

•

Offset Voltage Drift: 0.35

μV/°C (Typ)

The extremely low voltage and low current noise,

high speed, and wide output swing of the OPA2211-

•

Low Supply Current: 3.6 mA/Ch (Typ)

EP series make these devices an excellent choice as

•

Unity-Gain Stable

a loop filter amplifier in PLL applications.

•

Gain Bandwidth Product:

In

precision

data

acquisition

applications,

the

80 MHz (G = 100)

OPA2211-EP

series

of

operational

amplifiers

45 MHz (G = 1)

provides 700-ns settling time to 16-bit accuracy

•

Slew Rate: 27 V/

μs

throughout 10-V output swings. This AC performance,

•

16-Bit Settling: 700 ns

combined with only 125

μV of offset and 0.35 μV/°C

of drift over temperature, makes the OPA2211-EP

•

Wide Supply Range:

ideal for driving high-precision 16-bit analog-to-digital

±2.25 V to ±18 V, +4.5 V to +36 V

converters (ADCs) or buffering the output of high-

•

Rail-to-Rail Output

resolution digital-to-analog converters (DACs).

•

Output Current: 30 mA

The OPA2211-EP is specified over a wide dual-power

•

Supports Defense, Aerospace, and Medical

supply range of ±2.25 V to ±18 V, or for single-supply

Applications

operation from 4.5 to 36 V.

–

Controlled Baseline

The OPA2211-EP is available in a small DFN-8 (3-

–

One Assembly and Test Site

mm × 3-mm) package. These operational amplifiers

–

One Fabrication Site

–

Available in Military (–55°C to 125°C)

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

–

Extended Product Life Cycle

OPA2211-EP

WSON (8)

3.00 mm × 3.00 mm

–

Extended Product-Change Notification

(1) For all available packages, see the orderable addendum at

–

Product Traceability

the end of the data sheet.

Voltage Noise Density vs Frequency

2 Applications

•

PLL Loop Filter

•

Low-Noise, Low-Power Signal Processing

•

16-Bit ADC Drivers

•

DAC Output Amplifiers

•

Active Filters

•

Low-Noise Instrumentation Amplifiers

•

Ultrasound Amplifiers

•

Professional Audio Preamplifiers

•

Low-Noise Frequency Synthesizers

•

Infrared Detector Amplifiers

•

Hydrophone Amplifiers

•

Geophone Amplifiers

•

Medical

(1)

Additional temperature ranges available - contact factory

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. PRODUCTION DATA.