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参数资料
| 型号： | REF02BUE4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 5 V, PDSO8 |
| 封装： | ROHS COMPLIANT, PLASTIC, SOIC-8 |
| 文件页数： | 13/15页 |
| 文件大小： | 496K |
| 代理商： | REF02BUE4 |
REF02
7
SBVS003B
www.ti.com
OUTPUT ADJUSTMENT
The REF02 trim terminal can be used to adjust the voltage
over a 5V
±150mV range. This feature allows the system
designer to trim system errors by setting the reference to a
voltage other than 5V, including 5.12V(1) for binary applica-
tions (see circuit on page 1).
Adjustment of the output does not significantly affect the
temperature performance of the device. The temperature
coefficient change is approximately 0.7ppm/
°C for 100mV of
output adjustment.
NOTE: (1) 20mV LSB for 8-bit applications.
TYPICAL APPLICATIONS
5k
OPA177
10k
10k
–15V
+15V
–5V
+5V
Trim
GND
V
IN
35
4
2
REF02
0.1
F
V
O
Temp
6
FIGURE 2.
±5V Precision Reference.
REF02
GND
2
4
–18V
+18V
V
IN
FIGURE 1. Burn-In Circuit.
REFERENCE STACKING
PROVIDES OUTSTANDING LINE REGULATION
By stacking two REF01s and one REF02, a systems designer
can achieve 5V, 15V, and 25V outputs. One very important
advantage of this circuit is the near-perfect line regulation at
5V and 15V outputs. This circuit can accept a 27V to 55V
change to the input with less than the noise voltage as a
change to the output voltage. R
B, a load bypass resistor,
supplies current I
SY for the 15V regulator.
Any number of REF01s and REF02s can be stacked in this
configuration. For example, if ten devices are stacked in this
configuration, ten 5V or five 10V outputs are achieved. The
line voltage may range from 100V to 130V. Care should be
exercised to insure that the total load currents do not exceed
the maximum usable current, which is typically 21mA.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| REF02BUG4 | 功能描述:基准电压& 基准电流 +5V Precision Voltage Reference RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| REF02C | 制造商:BB 制造商全称:BB 功能描述:+5V Precision VOLTAGE REFERENCE |
| REF02CCSA | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage Reference |
| REF02CESA | 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| REF02CESA+ | 功能描述:基准电压& 基准电流 5V Precision Voltage Reference RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
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