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| 型号： | LMP8277MAX/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 1/13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： | LMP8277MAX |
INDUCTIVE
LOAD
RSENSE
+
-
UP TO
16V
POWER
SWITCH
VS = 4.75V to 5.5V
OUT
LMP8277
+
-
A1
GND
+IN
-IN
A2
GAIN = 2
A1
A2
100 k:
GAIN = 7
PROPRIETARY
LEVEL - SHIFT
CIRCUITRY
OBSOLETE
SNOSAK3G – DECEMBER 2004 – REVISED MARCH 2007
High Common Mode, Gain of 14, Precision Voltage Difference Amplifier
Check for Samples: LMP8277
1
FEATURES
DESCRIPTION
The LMP8277 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 ±2 mV Max
a supply voltage range of 4.75V to 5.5V. The
TCVos ±30
μV/°C Max
LMP8277 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 14 and is
Bandwidth 80 kHz
adequate to drive an ADC to full scale in most cases.
This fixed gain is achieved in two separate stages, a
Operating Temperature Range (Ambient)
preamplifier with gain of +7 and a second stage
40°C to 125°C
amplifier with a 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
that provide a connection for a filter network.
The LMP8277 will function over an extended common
APPLICATIONS
mode input voltage range making the device suitable
Fuel Injection Control
for applications with load dump events such as
automotive systems.
High and Low Side Driver Configuration
Current Sensing
Power Management Systems
Typical Application
Figure 1. Low Side Current Sensing
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
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 2004–2007, 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 |
|---|---|
| LMP8278MMEVAL/NOPB | 制造商:Texas Instruments 功能描述:HIGH COMMON MODE, 14 X GAIN, PRECISION C - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:BOARD EVAL FOR LMP8278 制造商:Texas Instruments 功能描述:High Common Mode, 14 x Gain, Precision C |
| LMP8278Q | 制造商:TI 制造商全称:Texas Instruments 功能描述:High Common Mode, 14 x Gain, Precision Current Sensing Amplifier |
| LMP8278QMM/NOPB | 功能描述:电流灵敏放大器 Hi Common Md Prec Current Sensing Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| LMP8278QMME/NOPB | 功能描述:电流灵敏放大器 Hi Common Md Prec Current Sensing Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| LMP8278QMMX/NOPB | 功能描述:电流灵敏放大器 Hi Common Md Prec Current Sensing Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
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