Datasheet 搜索 > 电压基准芯片 > TI（德州仪器） > REF3212AIDBVTG4 数据手册 > REF3212AIDBVTG4 数据手册 11/19 页
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REF3212AIDBVTG4 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
电压基准芯片
封装:
SOT-23-6
描述:
TEXAS INSTRUMENTS REF3212AIDBVTG4 电压基准, 微功率, 低压降, 系列 - 固定, REF3212系列, 1.25V, SOT-23-6
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3D模型
符号图
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引脚图
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页面导航:
引脚图在P2Hot
典型应用电路图在P11
原理图在P8
封装尺寸在P2P14P15
标记信息在P2P14P15
封装信息在P2P14P15P16
功能描述在P2P8
技术参数、封装参数在P2
应用领域在P1P4P16
电气规格在P3P4P8
导航目录
REF3212AIDBVTG4数据手册
Page:
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-2.5V
+2.5V
+5V
12
5
6
3 4
R
1
10kW
R
2
10kW
-5V
+5V
OPA735
REF3225
ADS7822
REF3233
V
CC
CS
D
OUT
DCLOCK
V
REF
+In
-In
GND
GND
V
IN
V
S
+
+
5W
1mFto10mF
0.47 Fm
1 Fto10 Fm m
0.1 Fm
Microcontroller
V+
3.3V
2 1
35
6
4
REF3212, REF3220
REF3225, REF3230
REF3233, REF3240
www.ti.com
SBVS058C –JUNE 2005– REVISED AUGUST 2011
APPLICATION CIRCUITS
NEGATIVE REFERENCE VOLTAGE
For applications requiring a negative and positive
reference voltage, the REF32xx and OPA735 can be
used to provide a dual-supply reference from a ±5V
supply. Figure 25 shows the REF3225 used to
provide a ±2.5V supply reference voltage. The low
drift performance of the REF32xx complements the
low offset voltage and zero drift of the OPA735 to
provide an accurate solution for split-supply
applications. Care must be taken to match the
temperature coefficients of R
1
and R
2
.
DATA ACQUISITION
Data acquisition systems often require stable voltage
references to maintain accuracy. The REF32xx family
features stability and a wide range of voltages
NOTE:: Bypass capacitor is not shown.
suitable for most microcontrollers and data
converters. Figure 26, Figure 27, and Figure 28 show
Figure 25. REF3225 Combined with OPA735 to
basic data acquisition systems.
Create Positive and Negative Reference Voltages
Figure 26. Basic Data Acquisition System 1
Copyright © 2005–2011, Texas Instruments Incorporated 11
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