LMP8277 datasheet(1/5 Pages) NSC

tên linh kiện	LMP8277

Giải thích chi tiết về linh kiện	High Common Mode, Gain of 14, Precision Voltage Difference Amplifiers

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nhà sản xuất	NSC [National Semiconductor (TI)]

Trang chủ	http://www.national.com

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LMP8272, LMP8277

High Common Mode, Gain of 14, Precision Voltage

Difference Amplifiers

General Description

The LMP™8272, LMP8277 are fixed gain differential ampli-

fiers with a -2V to 27V input common mode voltage range

and a supply voltage range of 4.5V to 5.5V. The LMP8272,

LMP8277 are precision amplifiers which will detect, amplify

and filter small differential signals in the presence of high

common mode voltages. The gain is fixed at 14 and is

adequate to drive an ADC to full scale in most cases. This

fixed gain is achieved in two separate stages, a pre-amplifier

with gain of +7 and a second stage amplifier with a gain of

+2. The internal signal path between these two stages is

brought out on two pins that provide a connection for a filter

network.

The LMP8272, LMP8277 will function with reduced specifi-

cations over the extended common mode input voltage

range of -5 to 36 Volts. This feature makes the device

suitable for applications with load dump in automotive sys-

tems.

Features

n

Typical Values, TA = 25˚C

n

Input Offset Voltage

1mV max

n

TCVos (LMP8272)

15µV/˚C max

n

TCVos (LMP8277)

30µV/˚C max

n

CMRR

80dB Min

n

Extended CMVR

-5V to 36V

n

Output Voltage Swing

Rail to Rail

n

Bandwidth

80KHz

n

Operating Temperature Range (Ambient) -40˚C to 125˚C

n

Operating Temperature Range (bare die) -40˚C to 150˚C

n

Supply Voltage

4.5V to 5.5V

n

Supply Current

1mA

Applications

n

Fuel Injection Control

n

Low Side Driver Configuration Current Sensing

n

Power Management Systems

Typical Application

Typical Application: Low side Current Sensing

20130901

LMP™ is a trademark of National Semiconductor Corporation.

PRELIMINARY

January 2005

DS201309

www.national.com

Số phần tương tự - LMP8277

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
National Semiconductor ...	LMP8270	458Kb / 5P	High Common Mode, Gain of 20, Precision Voltage Difference Amplifiers
Texas Instruments	LMP8270	438Kb / 17P	Precision Voltage Difference Amplifier
National Semiconductor ...	LMP8271	468Kb / 5P	High Common Mode, Gain of 20, Bidirectional Precision Voltage Difference Amplifiers
Texas Instruments	LMP8271	449Kb / 17P	Bidirectional Precision Voltage Difference Amplifier
Texas Instruments	LMP8272	357Kb / 16P	Precision Voltage Difference Amplifier

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Mô tả tương tự - LMP8277

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Analog Devices	AD629	302Kb / 12P	High Common-Mode Voltage Difference Amplifier REV.A
Analog Devices	AD628	247Kb / 20P	High Common-Mode Voltage Programmable Gain Difference Amplifier 4/04-Data Sheet Changed from Rev. B to Rev. C
National Semiconductor ...	LMP8270	458Kb / 5P	High Common Mode, Gain of 20, Precision Voltage Difference Amplifiers
National Semiconductor ...	LMP8271	468Kb / 5P	High Common Mode, Gain of 20, Bidirectional Precision Voltage Difference Amplifiers
Analog Devices	AD628	453Kb / 20P	High Common-Mode Voltage, Programmable Gain Difference Amplifier 3/06-Rev. E to Rev. F
	AD628	486Kb / 20P	High Common-Mode Voltage, Programmable Gain Difference Amplifier Rev. G
	AD8479	409Kb / 16P	Very High Common-Mode Voltage Precision Difference Amplifier REV. 0
	AD628	573Kb / 21P	High Common-Mode Voltage, Programmable Gain Difference Amplifier Rev. G
	AD8479	425Kb / 16P	Very High Common-Mode Voltage Precision Difference Amplifier 9/15-Rev. 0 to Rev. A
	AD8479-EP	226Kb / 7P	Very High Common-Mode Voltage Precision Difference Amplifier Rev. 0

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