參數(shù)資料
型號(hào)： LMP8270MAX/NOPB
廠商： National Semiconductor
文件頁(yè)數(shù)： 1/17頁(yè)
文件大小： 0K
描述： IC AMP PREC VOLT DIFF 8-SOIC
標(biāo)準(zhǔn)包裝： 2,500
系列： LMP®
放大器類(lèi)型： 差分
電路數(shù)： 1
輸出類(lèi)型： 滿擺幅
轉(zhuǎn)換速率： 0.7 V/µs
增益帶寬積： 80kHz
電流 - 輸入偏壓： 20pA
電壓 - 輸入偏移： 250µV
電流 - 電源： 1mA
電壓 - 電源，單路/雙路(±)： 4.75 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOIC
包裝： 帶卷 (TR)
其它名稱(chēng)： LMP8270MAX
INDUCTIVE
LOAD
RSENSE
+
-
VS = 4.75V to 5.5V
OUT
LMP8270
+
-
A1
GND
+IN
-IN
A2
GAIN = 2
A1
A2
100 k:
GAIN = 10
PROPRIETARY
LEVEL - SHIFT
CIRCUITRY
POWER
SWITCH
UP TO
16V
OBSOLETE
SNOSAK1K – DECEMBER 2004 – REVISED APRIL 2013
High Common Mode, Gain of 20, Precision Voltage Difference Amplifier
Check for Samples: LMP8270
1
FEATURES
DESCRIPTION
The LMP8270 is a fixed gain differential amplifier with
23
Typical Values, TA = 25°C
a
2V to 16V input common mode voltage range and
Input Offset Voltage: ±1 mV Max
a supply voltage range of 4.75V to 5.5V. The
TCVOS: ±15 μV/°C Max
LMP8270 is part of the LMP precision amplifier
family which will detect, amplify and filter small
CMRR: 80 dB Min
differential signals in the presence of high common
Output Voltage Swing: Rail-to-Rail
mode voltages. The gain is fixed at 20 and is
Bandwidth: 80 kHz
adequate to drive an ADC to full scale in most cases.
This gain is achieved in two stages, a preamplifier
Operating Temperature Range (Ambient):
with a fixed gain of 10 and a second stage amplifier
40°C to 125°C
with a fixed gain of 2. The internal signal path
Supply Voltage: 4.75V to 5.5V
between these two stages is brought out on two pins,
Supply Current: 1 mA
A1 and A2, which provide a connection for a filter
network.
APPLICATIONS
The LMP8270 will function over an extended common
Fuel Injection Control
mode input voltage range making the device suitable
for applications with load dump events such as
High and Low Side Driver Configuration
automotive systems.
Current Sensing
Power Management Systems
TYPICAL APPLICATION
Figure 1. Low Side Current Sensing
1
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.
2
LMP is a trademark of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright 2004–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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LMP8271MA/NOPB 功能描述:IC AMP PREC DIFF 8-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:LMP® 標(biāo)準(zhǔn)包裝:50 系列:LinCMOS™ 放大器類(lèi)型:通用 電路數(shù):4 輸出類(lèi)型:- 轉(zhuǎn)換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁(yè)面:865 (CN2011-ZH PDF) 其它名稱(chēng):296-1834296-1834-5
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