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參數(shù)資料
| 型號： | REF102BU |
| 英文描述： | 10V Precision Voltage Reference |
| 中文描述： | 10V的高精度電壓基準 |
| 文件頁數(shù)： | 6/15頁 |
| 文件大?。?/td> | 370K |
| 代理商： | REF102BU |
REF102
SBVS022A
6
www.ti.com
INSTALLATION AND
OPERATING INSTRUCTIONS
BASIC CIRCUIT CONNECTION
Figure 2 shows the proper connection of the REF102. To
achieve the specified performance, pay careful attention to
layout. A low resistance star configuration will reduce voltage
errors, noise pickup, and noise coupled from the power
supply. Commons should be connected as indicated, being
sure to minimize interconnection resistances.
OPTIONAL OUTPUT VOLTAGE ADJUSTMENT
Optional output voltage adjustment circuits are shown in
Figures 3 and 4. Trimming the output voltage will change the
voltage drift by approximately 0.008ppm/
°
C per mV of trimmed
voltage. In the circuit in Figure 3, any mismatch in TCR
between the two sections of the potentiometer will also affect
drift, but the effect of the
TCR is reduced by a factor of five
by the internal resistor divider. A high quality potentiometer,
with good mechanical stability, such as a cermet, should be
REF102
1
μ
F
Tantalum
+
R
L 1
R
L 2
R
L 3
V+
(1)
2
(2)
(2)
(1)
4
6
NOTES: (1) Lead resistances here of up to a few ohms have
negligible effect on performance. (2) A resistance of 0.1
in
series with these leads will cause a 1mV error when the load
current is at its maximum of 10mA. This results in a 0.01%
error of 10V.
FIGURE 2. REF102 Installation.
REF102
1
μ
F
Tantalum
+
V+
2
4
20k
Output
Voltage
Adjust
Minimum range (
±
300mV) and minimal
degradation of drift.
+10V
5
V
TRIM
6
V
OUT
FIGURE 3. REF102 Optional Output Voltage Adjust.
REF102
V+
2
4
20k
Output
Voltage
Adjust
Higher resolution, reduced range (typically
±
25mV).
+10V
5
V
TRIM
6
V
OUT
R
S
1M
1
μ
F
Tantalum
+
FIGURE 4. REF102 Optional Output Voltage, Fine Adjust.
used. The circuit in Figure 3 has a minimum trim range of
±
300mV. The circuit in Figure 4 has less range but provides
higher resolution. The mismatch in TCR between R
S
and the
internal resistors can introduce some slight drift. This effect
is minimized if R
S
is kept significantly larger than the 50k
internal resistor. A TCR of 100ppm/
°
C is normally sufficient.
相關PDF資料 |
PDF描述 |
|---|---|
| REF102CP | 10V Precision Voltage Reference |
| REF102CU | 10V Precision Voltage Reference |
| REF102SM | 10V Precision Voltage Reference |
| REF10JM | Precision VOLTAGE REFERENCE |
| REF10KM | Precision VOLTAGE REFERENCE |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| REF102BU/2K5 | 制造商:BB 制造商全稱:BB 功能描述:10V Precision Voltage Reference |
| REF102BUG4 | 功能描述:基準電壓& 基準電流 Precision Voltage Reference RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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 |
| REF102C | 制造商:BB 制造商全稱:BB 功能描述:Precision VOLTAGE REFERENCE |
| REF102CP | 功能描述:基準電壓& 基準電流 Precision Voltage Reference RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度: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 |
| REF102CP | 制造商:Texas Instruments 功能描述:IC VOLT REFERENCE 10V |
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