Datasheet 搜索 > 放大器、缓冲器 > ST Microelectronics（意法半导体） > TSZ124IPT 数据手册 > TSZ124IPT 产品描述及参数 1/7 页
器件3D模型￥ 11.608
TSZ124IPT 产品描述及参数 - ST Microelectronics（意法半导体）
制造商:
ST Microelectronics（意法半导体）
分类:
放大器、缓冲器
封装:
TSSOP-14
描述:
运算放大器, 轨至轨输入, 4个放大器, 400 kHz, 0.19 V/µs, 1.8V 至 5.5V, TSSOP, 14 引脚
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技术参数、封装参数在P7
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TSZ124IPT数据手册
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若手册格式错乱，请下载阅览PDF原文件
January 2014
DT0015 Rev 1
1/7
www.st.com
DT0015
Design tip
Chop away input offsets with TSZ121/TSZ122/TSZ124
By Preet Sibia
Main components
TSZ121
Single very high accuracy (5 μV) zero drift micropower 5 V
operational amplifier
TSZ122
Dual very high accuracy (5 μV) zero drift micropower 5 V
operational amplifiers
TSZ124
Quad very high accuracy (5 μV) zero drift micropower 5 V
operational amplifiers
Purpose and benefits
Review of input offset voltage
Overview of TSZ12x chopper design to provide highest precision
Example applications using TSZ family to achieve highest accuracy
Description
The TSZ121/TSZ122/TSZ124 series of high precision operational amplifiers
offer very low input offset voltages with virtually zero drift. These devices also
feature rail-to-rail input and output and an excellent speed/power consumption
ratio. The 5uV input offset voltage and near zero drift are key parameters of
interest for small signal precision system designs.
Input offset voltage basics:
For the textbook ideal op amp, if both inputs of an op amp are at exactly the same voltage,
then the output of the amplifier will be zero volts. In the real world, due to process
variations of each input stage, a small differential voltage is needed on the inputs to force
the output to zero. This voltage called the input offset voltage, V
OS
as shown in Figure 1.
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