參數(shù)資料
型號： REF5045IDGKT
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, 4.5 V, PDSO8
封裝： PLASTIC, MSOP-8
文件頁數(shù)： 4/27頁
文件大?。?/td> 976K
代理商： REF5045IDGKT
ADS8326
REF5040
REF
V
OUT
GND
+IN
-
IN
V
IN
+5V
OPA365
Input
Signal
0Vto4V
+5V
V
DD
GND
C
BYPASS
1 F
m
R
1
50W
C
1
1.2nF
C
2
22 F
m
-
2.5V
+2.5V
+5V
NOTE:Bypasscapacitorsnotshown.
R
1
10kW
R
2
10kW
-
5V
OPA735
+5V
DNC
TEMP
V
OUT
V
IN
GND
DNC
NC
TRIM/NR
REF5025
1 F
m
SBOS410E – JUNE 2007 – REVISED JUNE 2010
www.ti.com
APPLICATION CIRCUITS
DATA ACQUISITION
NEGATIVE REFERENCE VOLTAGE
Data acquisition systems often require stable voltage
For applications requiring a negative and positive
references to maintain accuracy. The REF50xx family
reference voltage, the REF50xx and OPA735 can be
features low noise, very low drift, and high initial
used to provide a dual-supply reference from a 5V
accuracy
for
high-performance
data
converters.
supply. Figure 33 shows the REF5025 used to
Figure 34 shows the REF5040 in a basic data
provide a 2.5V supply reference voltage. The low drift
acquisition system.
performance of the REF50xx 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 34. Basic Data Acquisition System
Figure 33. The REF5025 and OPA735 Create
Positive and Negative Reference Voltages
12
Copyright 2007–2010, Texas Instruments Incorporated
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
REF5045IDR 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Lo Noise Very Low Drift Prec VLTG REF RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
REF5045IDRG4 功能描述:基準(zhǔn)電壓& 基準(zhǔn)電流 Low Noise Very Low Drift Prec Vltg Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓?fù)浣Y(jié)構(gòu):Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準(zhǔn)確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel
REF5045-Q1 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW NOISE, VERY LOW DRIFT,PRECISION VOLTAGE REFERENCE
REF5050 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Noise, Very Low Drift, Precision VOLTAGE REFERENCE
REF5050A 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Noise, Very Low Drift, Precision VOLTAGE REFERENCE
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