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| 型号： | LMP8270MAX/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC AMP PREC VOLT DIFF 8-SOIC |
| 标准包装： | 2,500 |
| 系列： | LMP® |
| 放大器类型： | 差分 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 0.7 V/µs |
| 增益带宽积： | 80kHz |
| 电流 - 输入偏压： | 20pA |
| 电压 - 输入偏移： | 250µV |
| 电流 - 电源： | 1mA |
| 电压 - 电源，单路/双路(±)： | 4.75 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
| 其它名称： | 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMP8271 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:High Common Mode, Gain of 20, Bidirectional Precision Voltage Difference Amplifiers |
| LMP8271A E0A WAF | 制造商:Texas Instruments 功能描述: |
| LMP8271A E0B WAF | 制造商:Texas Instruments 功能描述: |
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| LMP8271MA/NOPB | 功能描述:IC AMP PREC DIFF 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:LMP® 标准包装:50 系列:LinCMOS™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.05 V/µs 增益带宽积:110kHz -3db带宽:- 电流 - 输入偏压:0.7pA 电压 - 输入偏移:210µV 电流 - 电源:57µA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:管件 产品目录页面:865 (CN2011-ZH PDF) 其它名称:296-1834296-1834-5 |
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