FEATURES

D BANDWIDTH: 20MHz

D SLEW RATE: 30V/µs

D FAST 16-BIT SETTLING TIME

D LOW NOISE: 6nV/√Hz (typ) at 100kHz

D EXCELLENT CMRR, PSRR, and AOL

D RAIL-TO-RAIL OUTPUT

D CM RANGE INCLUDES GND

D THD+N: 0.0003% (typ) at 1kHz

D QUIESCENT CURRENT: 5.5mA/ch (max)

D SUPPLY VOLTAGE: 4V to 12V

D SHUTDOWN MODE (OPAx726): 6µA/ch

APPLICATIONS

D OPTICAL NETWORKING

D TRANSIMPEDANCE AMPLIFIERS

D INTEGRATORS

D ACTIVE FILTERS

D A/D CONVERTER BUFFERS

D I/V CONVERTER FOR DACs

D PORTABLE AUDIO

D PROCESS CONTROL

D TEST EQUIPMENT

OPA725 RELATED PRODUCTS

FEATURES

PRODUCT

10MHz, 16V, 16V/

µs, 8.5nV/√Hz at 1kHz

TLC080

8MHz, 36V, FET Input, 20V/

µs, 8.5nV/√Hz at 1kHz

OPA132

100MHz, 5.5V, Precision Transimpedance Amplifier

OPA380

500MHz,

±5V, FET Input, 290V/µs, 7nV/√Hz at 100kHz

OPA656

7MHz, 12V, RRIO, 10V/

µs, 30nV/√Hz at 10kHz

OPA743

16-Bit, 250kSPS, 4-Channel, Parallel Output ADC

ADS8342

DESCRIPTION

The OPA725 and OPA726 series op amps use a

state-of-the-art 12V analog CMOS process, and combine

outstanding ac performance with low bias current and

excellent

CMRR,

PSRR,

and

AOL. The 20MHz

Gain-Bandwidth (GBW) Product is achieved by using a

proprietary and patent-pending output stage design.

These characteristics allow excellent 16-bit settling times

for driving 16-bit Analog-to-Digital converters (ADCs).

Excellent ac characteristics, such as 20MHz GBW, 30V/

µs

slew rate and 0.0003% THD+N make the OPA725 and

OPA726 well-suited for communication, high-end audio,

and active filter applications. With a bias current of less

than

200pA,

they

are

well-suited

for

use

as

transimpedance (I/V-conversion) amplifiers for monitoring

optical power in ONET applications.

The OPA725 and OPA726 op amps can be used in

single-supply applications from 4V up to 12V, or

dual-supply from

±2V to ±6V. The output swings to within

150mV of the rails, maximizing dynamic range. The

shutdown versions (OPAx726) reduce the quiescent

current to less than 6

µA and feature a reference pin for

easy shutdown operation with standard CMOS logic in

dual-supply applications.

The OPA725 (single) is available in SOT23-5 and SO-8

packages, and the OPA2725 (dual) is available in MSOP-8

and SO-8 packages. The OPA726 (single with shutdown)

is available in MSOP-8 and SO-8. The OPA2726 (dual with

shutdown) is available in MSOP-10. All versions are

specified for operation from −40

°C to +125°C.

−V

B

V

OUT

+12V

Enable

OPA 726

λ

75

Ω

OPA725

ADS8342

16−Bit ADC

AIN

Common

330pF

V

IN

±2.5V

+5V

−5V

+5V

−5V

OPA725, OPA2725

OPA726, OPA2726

SBOS278B − SEPTEMBER 2003 − REVISED JANUARY 2004

Very Low Noise, High-Speed, 12V CMOS

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.

www.ti.com

Copyright

 2003−2004, Texas Instruments Incorporated

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.

All trademarks are the property of their respective owners.