Datasheet > OPAx349

OPAx349

更新时间： 2022-04-25 18:57:32

品牌	Logo	应用领域
德州仪器 - TI		运算放大器
页数	文件大小	规格书
29页	1485K
描述
1.8V, 2.9mA, 90kHz, Rail-to-Rail I/O OPERATIONAL AMPLIFIERS

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OPAx349 数据手册

OPA379

OPA2379

OPA4379

www.ti.com ................................................................................................................................................... SBOS347D–NOVEMBER 2005–REVISED MAY 2008

1.8V, 2.9µA, 90kHz, Rail-to-Rail I/O

OPERATIONAL AMPLIFIERS

FEATURES

DESCRIPTION

•

LOW NOISE: 2.8µV_PP(0.1Hz - 10Hz)

The OPA379 family of micropower, low-voltage

operational amplifiers is designed for battery-powered

applications. These amplifiers operate on a supply

voltage as low as 1.8V (±0.9V). High-performance,

single-supply operation with rail-to-rail capability

(10µV max) makes the OPA379 family useful for a

wide range of applications.

microPower: 5.5µA (max)

LOW OFFSET VOLTAGE: 1.5mV (max)

DC PRECISION:

–

CMRR: 100dB

PSRR: 2µV/V

A_OL: 120dB

In addition to microSize packages, the OPA379 family

of op amps features impressive bandwidth (90kHz),

low bias current (5pA), and low noise (80nV/√Hz)

relative to the very low quiescent current (5.5µA

max).

•

WIDE SUPPLY VOLTAGE RANGE: 1.8V to 5.5V

microSize PACKAGES:

–

SC70-5, SOT23-5, SOT23-8, SO-8, TSSOP-14

APPLICATIONS

The OPA379 (single) is available in SC70-5,

SOT23-5, and SO-8 packages. The OPA2379 (dual)

comes in SOT23-8 and SO-8 packages. The

OPA4379 (quad) is offered in a TSSOP-14 package.

All versions are specified from –40°C to +125°C.

•

BATTERY-POWERED INSTRUMENTS

PORTABLE DEVICES

MEDICAL INSTRUMENTS

HANDHELD TEST EQUIPMENT

xxx

V_S

Table 1. OPAx379 RELATED PRODUCTS

FEATURES

PRODUCT

OPAx349

TLV240x

TLV224x

TLV27Lx

TLV238x

OPAx347

TLV276x

OPAx348

1/2

C₂

OPA2379

1µA, 70kHz, 2mV V_OS, 1.8V to 5.5V Supply

1µA, 5.5kHz, 390µV V_OS, 2.5V to 16V Supply

1µA, 5.5kHz, 0.6mV V_OS, 2.5V to 12V Supply

7µA, 160kHz, 0.5mV V_OS, 2.7V to 16V Supply

20µA, 350kHz, 2mV V_OS, 2.3V to 5.5V Supply

20µA, 500kHz, 550µV V_OS, 1.8V to 3.6V Supply

45µA, 1MHz, 1mV V_OS, 2.1V to 5.5V Supply

C₁

R_F

REF

V_S

R_B

R_L

1/2

OPA2379

R₁

V_OUT

R₁

Figure 1. OPA2379 in Portable Gas Meter

Application

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...29

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