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LMP7721中文资料

厂家型号

LMP7721

文件大小

747.56Kbytes

页面数量

35

功能描述

LMP7721 3-Femtoampere Input Bias Current Precision Amplifier

3 Femtoampere Input Bias Current Precision Amplifier

数据手册

原厂下载下载地址一下载地址二到原厂下载

生产厂商

TI2

LMP7721数据手册规格书PDF详情

1 Features

1• Unless Otherwise Noted, Typical Values at TA =

25°C, V S = 5 V.

• Input Bias Current (VCM = 1 V)

– Maximum at 25°C ±20 fA

– Maximum at 85°C ±900 fA

• Offset Voltage ±26 μV

• Offset Voltage Drift −1.5 μV/°C

• DC Open-Loop Gain 120 dB

• DC CMRR 100 dB

• Input Voltage Noise (at f = 1 kHz) 6.5 nV/√Hz

• THD 0.0007%

• Supply Current 1.3 mA

• GBW 17 MHz battery•

Slew Rate (Falling Edge) 12.76 V/μs

• Supply Voltage 1.8 V to 5.5 V

• Operating Temperature Range −40°C to 125°C

• 8-Pin SOIC

2 Applications

• Photodiode Amplifier

• High Impedance Sensor Amplifier

• Ion Chamber Amplifier

• Electrometer Amplifier

• pH Electrode Amplifier

• Transimpedance Amplifier

3 Description

The LMP7721 is the industry’s lowest specified input

bias current precision amplifier. The ultra-low input

bias current is 3 fA, with a specified limit of ±20 fA at

25°C and ±900 fA at 85°C. This is achieved with the

latest patent-pending technology of input bias current

cancellation amplifier circuitry. This technology also

maintains the ultra-low input bias current over the entire input common-mode voltage range of the

amplifier.

Other outstanding features, such as low voltage noise

(6.5 nV/√Hz), low DC-offset voltage (±150 μV

maximum at 25°C) and low-offset voltage

temperature coefficient (−1.5 μV/°C), improve system sensitivity and accuracy in high-precision

applications. With a supply voltage range of 1.8 V to

5.5 V, the LMP7721 is the ideal choice for battery•

operated, portable applications. The LMP7721 is part

of the LMP™ precision amplifier family.

As part of Texas Instruments' PowerWise™ products, the LMP7721 provides the remarkably wide-gain

bandwidth product (GBW) of 17 MHz while

consuming only 1.3 mA of current. This wide GBW

along with the high open-loop gain of 120 dB enables

accurate signal conditioning. With these

specifications, the LMP7721 has the performance to

excel in a wide variety of applications such as

electrochemical cell amplifiers and sensor interface

circuits.

The LMP7721 is offered in an 8-pin SOIC package

with a special pinout that isolates the amplifier’s input

from the power supply and output pins. With proper

board layout techniques, the unique pinout of the

LMP7721 will prevent PCB leakage current from

reaching the input pins. Thus system error will be

further reduced.

LMP7721产品属性

  • 类型

    描述

  • 型号

    LMP7721

  • 制造商

    NSC

  • 制造商全称

    National Semiconductor

  • 功能描述

    3 Femtoampere Input Bias Current Precision Amplifier

更新时间:2025-10-14 14:08:00
供应商 型号 品牌 批号 封装 库存 备注 价格
NS
25+
SOP8
550
百分百原装正品 真实公司现货库存 本公司只做原装 可
TI
21+
SOP-8
17500
只做原装正品!现货库存!可开13点增值税票
24+
SOP8
6000
美国德州仪器TEXASINSTRUMENTS原厂代理辉华拓展内地现
24+
N/A
2500
爱立购只做原装,样品支持终端工厂
TI(德州仪器)
24+
标准封装
7068
原厂直销,大量现货库存,交期快。价格优,支持账期
TI
24+
SOIC8
5630
TI一级代理原厂授权渠道实单支持
TI
SOIC8
56371
提供BOM表配单
TI
15+
SOIC8
32500
全新原装现货供应2
TI/德州仪器
23+
SOIC8
18204
原装正品代理渠道价格优势
NS
2021+
SOP8
9450
原装现货。

LMP7721MAEVALMF/NOPB 价格

参考价格:¥1034.9167

型号:LMP7721MAEVALMF/NOPB 品牌:TEXAS 备注:这里有LMP7721多少钱,2025年最近7天走势,今日出价,今日竞价,LMP7721批发/采购报价,LMP7721行情走势销售排排榜,LMP7721报价。

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