參數(shù)資料
型號(hào): V62/07602-02XE
廠商: TEXAS INSTRUMENTS INC
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDSO6
封裝: GREEN, PLASTIC, SOT-23, 6 PIN
文件頁(yè)數(shù): 5/19頁(yè)
文件大?。?/td> 510K
代理商: V62/07602-02XE
www.ti.com
APPLICATION CIRCUITS
Negative Reference Voltage
+2.5V
+5V
1
2
5
6
3
4
Note:Bypasscapacitorisnotshown.
R
1
10kW R
2
10kW
+5V
OPA735
REF3225
-2.5V
-5V
Data Acquisition
ADS7822
REF3233
V
CC
CS
D
OUT
DCLOCK
V
REF
+In
-In
GND
V
IN
V
S
+
5 W
1
Fto10
F
m
0.1
F
m
V+
3.3V
2
1
3
5
6
4
Microcontroller
1
Fto10
F
m
0.47
F
m
4 ppm/
°C, 100 A SOT23-6 SERIES VOLTAGE REFERENCES
SBVS078A – OCTOBER 2006 – REVISED APRIL 2007
For applications requiring a negative and positive reference voltage, the REF32xx and OPA735 can be used to
provide a dual-supply reference from a 5-V supply. Figure 5 shows the REF3225 used to provide a 2.5-V 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 R1 and R2.
Figure 5. REF3225 Combined With OPA735 to Create Positive and Negative Reference Voltages
Data acquisition systems often require stable voltage references to maintain accuracy. The REF32xx family
features stability and a wide range of voltages suitable for most microcontrollers and data converters. Figure 6,
Figure 7, and Figure 8 show basic data acquisition systems.
Figure 6. Basic Data Acquisition System 1
Copyright 2006–2007, Texas Instruments Incorporated
13
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