LMP7732

更新时间： 2024-11-22 05:42:27

品牌	Logo	应用领域
美国国家半导体 - NSC		放大器
页数	文件大小	规格书
20页	751K
描述
2.9 nV/sqrt(Hz) Low Noise, Precision, RRIO Amplifier

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LMP7732 数据手册

June 16, 2008

LMP7732

2.9 nV/sqrt(Hz) Low Noise, Precision, RRIO Amplifier

General Description

Features

The LMP7732 is a dual low noise, low offset voltage, rail-to-

rail input and output, low voltage precision amplifier. The

LMP7732 is part of the LMP^®precision amplifier family and is

ideal for precision and low noise applications with low voltage

requirements.

(Typical values, T_A= 25°C, V_S= 5V)

Input voltage noise

■

f = 3 Hz

3.3 nV/√Hz

2.9 nV/√Hz

±40 µV

±1.3 µV/°C

130 dB

—

f = 1 kHz

Offset voltage (max)

Offset voltage drift (max)

CMRR

Open loop gain

GBW

Slew rate

THD @ f = 10 kHz, A_V= 1, R_L= 2 kΩ

Supply current

Supply voltage range

Operating temperature range

Input bias current

RRIO

■

This operational amplifier offers low voltage noise of 2.9 nV/

with a 1/f corner of only 3 Hz and low DC offset with a

maximum value of ±40 µV, targeting high accuracy, low fre-

quency applications. The LMP7732 has bipolar junction input

stages with a bias current of only 1.5 nA. This low input bias

current, complemented by the very low AC and DC levels of

voltage noise, makes the LMP7732 an excellent choice for

photometry applications.

130 dB

22 MHz

2.4 V/µs

0.001%

4.4 mA

1.8V to 5.5V

−40°C to 125°C

±1.5 nA

The LMP7732 provides a wide GBW of 22 MHz while con-

suming only 4 mA of current. This high gain bandwidth along

with the high open loop gain of 130 dB enables accurate sig-

nal conditioning in applications with high closed loop gain

requirements.

The LMP7732 has a supply voltage range of 1.8V to 5.5V,

making it an ideal choice for battery operated portable appli-

cations.

Applications

Thermopile amplifier

■

Gas analysis instruments

The LMP7732 is offered in the 8-Pin SOIC and MSOP pack-

ages.

Photometric instrumentation

Medical instrumentation

■

The LMP7731 is the single version of this product and is of-

fered in the 5-Pin SOT-23 and 8-Pin SOIC packages.

Typical Application

Thermopile Signal Amplifier

30015001

LMP^®is a registered trademark of National Semiconductor Corporation.

300150

www.national.com

12 3 4 5 6 7...20

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与LMP7732相关器件

型号	品牌	获取价格	描述	数据表
LMP7732_15	TI	获取价格	2.9 nV/sqrt(Hz) Low Noise, RRIO Amplifier
LMP7732MA	NSC	获取价格	2.9 nV/sqrt(Hz) Low Noise, Precision, RRIO Amplifier
LMP7732MA	TI	获取价格	2.9 nV/sqrt(Hz) Low Noise, RRIO Amplifier
LMP7732MA/NOPB	NSC	获取价格	IC DUAL OP-AMP, 21 MHz BAND WIDTH, PDSO8, LEAD FREE, SOIC-8, Operational Amplifier
LMP7732MA/NOPB	TI	获取价格	2.9 nV/sqrt(Hz) Low Noise, RRIO Amplifier
LMP7732MAX	NSC	获取价格	2.9 nV/sqrt(Hz) Low Noise, Precision, RRIO Amplifier
LMP7732MAX	TI	获取价格	2.9 nV/sqrt(Hz) Low Noise, RRIO Amplifier
LMP7732MAX/NOPB	TI	获取价格	2.9 nV/sqrt(Hz) Low Noise, RRIO Amplifier
LMP7732MM	NSC	获取价格	2.9 nV/sqrt(Hz) Low Noise, Precision, RRIO Amplifier
LMP7732MM	TI	获取价格	2.9 nV/sqrt(Hz) Low Noise, RRIO Amplifier

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