FEATURES

− Excellent THD+N: 0.0004%

− CMRR: 100dB (min)

− Rail-to-Rail Input and Output

− Input 100mV Beyond Supply Rail

− Low Offset: 100

µV

− Low Input Bias Current: 0.2pA

APPLICATIONS

DESCRIPTION

The OPAx365 zer

performance, CMOS operational amplifiers are opti-

mized for very low voltage, single-supply applications.

Rail-to-rail input/output, low-noise (4.5nV/

√Hz) and

high-speed operation (50MHz Gain Bandwidth) make

these devices ideal for driving sampling analog-to-digi-

tal converters (ADCs). Applications incude audio, sig-

nal conditioning, and sensor amplification. The OPA365

family of op amps are also well-suited for cell phone

power amplifier control loops.

Special features include an excellent common-mode

rejection ratio (CMRR), no input stage crossover distor-

tion, high input impedance, and rail-to-rail input and out-

put swing. The input common-mode range includes

both the negative and positive supplies. The output volt-

age swing is within 10mV of the rails.

The OPA365 (single version) is available in the micro-

SIZE SOT23-5 and SO-8 packages. The OPA2365

(dual version) is offered in the SO-8 package. All ver-

sions are specified for operation from −40

°C to +125°C.

Single and dual versions have identical specifications

for maximum design flexibility.

Fast Settling Peak Detector

V

IN

V

OUT

C

2

2.2pF

R

2

2k

Ω

SD1

BAT17

C

1

10nF

R

1

7.5

Ω

V

−

V

+

U1

U2

V

−

V

+

OPA365

OPA365

OPA365

OPA2365

SBOS365D − JUNE 2006 − REVISED JUNE 2009

50MHz, Low-Distortion, High CMRR,

RRI/O, Single-Supply

OPERATIONAL AMPLIFIER

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

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 2006−2009, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments

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