Datasheet > LMP7312

LMP7312

更新时间： 2024-11-27 11:13:43

品牌	Logo	应用领域
德州仪器 - TI		放大器运算放大器
页数	文件大小	规格书
32页	1852K
描述
单路、5.5V、1MHz 运算放大器

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LMP7312 数据手册

LMP7312

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SNOSB32B –MARCH 2010–REVISED MARCH 2013

LMP7312 Precision SPI-Programmable AFE with Differential/Single-Ended Input/Output

Check for Samples: LMP7312

FEATURES

DESCRIPTION

•

Typical Values, T_A= 25°C, V⁺=5V, V^-=0V.

The LMP7312 is a digitally programmable variable

gain amplifier/attenuator. Its wide input voltage range

and superior precision make it a prime choice for

applications requiring high accuracy such as data

acquisition systems for IO modules in programmable

•

Gain Bandwidth 1 MHz

Input Voltage Range (G= 0.096 V/V) -15V to

+15V

logic control (PLC). The LMP7312 provides

•

Core Op-Amp Input Offset Voltage 100 µV

(Max)

differential output to maximize dynamic range and

signal to noise ratio, thereby reducing the overall

system error. It can also be configured to handle

single ended input data converters by means of the

V_OCMpin (see Application Section for details). The

inputs of LMP7312 can be configured in attenuation

mode to handle large input signals of up to +/- 15V,

as well as in amplification mode to handle current

loops of 0-20mA and 4-20mA.The LMP7312 is

equipped with a null switch to evaluate the offset of

the internal amplifier. A ensured 0.035% maximum

gain error (for all gains) and a maximum gain drift of

5ppm over the extended industrial temperature range

(-40° to 125°C) make the LMP7312 very attractive for

high precision systems even under harsh conditions.

A low input offset voltage of 100µV and low voltage

•

Supply Current 2 mA (Max)

Gain (Attenuation Mode) 0.096 V/V, 0.192

V/V0.384 V/V, 0.768 V/V

•

Gain (Amplification Mode) 1 V/V, 2 V/V

Gain Error 0.035% (Max)

Core Op-Amp PSRR 90 dB (Min)

CMRR 80 dB (min)

Adjustable Output Common Mode 1V to 4V

Temperature Range −40 to 125°C

Package 14-Pin SOIC

APPLICATIONS

noise of 3µVpp give the LMP7312

a superior

•

Signal Conditioning AFE

±10V; ±5V; 0-5V; 0-10V; 0-20mA; 4-20mA

performance. The LMP7312 is fully specified from -

40° to 125°C and is available in SOIC-14 package.

–

•

Data Acquisition Systems

Motor Control

Instrument and Process Control

Remote Sensing

Programmable Automation Control

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...32

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与LMP7312相关器件

型号	品牌	获取价格	描述	数据表
LMP7312MA	NSC	获取价格	Precision SPI-Programmable AFE with Differential/Single-Ended Input/Output
LMP7312MA/NOPB	TI	获取价格	单路、5.5V、1MHz 运算放大器 \| D \| 14 \| -40 to 125
LMP7312MAX	NSC	获取价格	Precision SPI-Programmable AFE with Differential/Single-Ended Input/Output
LMP7312MAX/NOPB	TI	获取价格	Single, 5.5-V, 1-MHz operational amplifier \| D \| 14 \| -40 to 125
LMP7701	NSC	获取价格	Precision, CMOS Input, RRIO, Wide Supply Range Amplifier
LMP7701	TI	获取价格	LMP7701/LMP7702/LMP7704 Precision, CMOS Input, RRIO, Wide Supply Range Amplifiers
LMP7701_06	NSC	获取价格	Precision, CMOS Input, RRIO, Wide Supply Range Amplifiers
LMP7701MA	TI	获取价格	LMP7701/LMP7702/LMP7704 Precision, CMOS Input, RRIO, Wide Supply Range Amplifiers
LMP7701MA/NOPB	TI	获取价格	精密 CMOS 输入 RRIO 宽电源电压范围单通道放大器 \| D \| 8
LMP7701MAX	TI	获取价格	LMP7701/LMP7702/LMP7704 Precision, CMOS Input, RRIO, Wide Supply Range Amplifiers

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