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参数资料
| 型号： | REF102CM |
| 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, 10 V, MBCY8 |
| 封装： | METAL, TO-99, 8 PIN |
| 文件页数： | 17/19页 |
| 文件大小： | 608K |
| 代理商： | REF102CM |
REF102
7
SBVS022B
www.ti.com
OPTIONAL NOISE REDUCTION
The high-frequency noise of the REF102 is dominated by the
zener diode noise. This noise can be greatly reduced by
connecting a capacitor between the Noise Reduction pin and
ground. The capacitor forms a low-pass filter with R6 (refer to
the figure on page 1) and attenuates the high-frequency
noise generated by the zener. Figure 5 shows the effect of a
1
F noise reduction capacitor on the high-frequency noise of
the REF102. R6 is typically 7k so the filter has a –3dB
frequency of about 22Hz. The result is a reduction in noise
from about 800
V
PP to under 200VPP. If further noise
reduction is required, use the circuit in Figure 14.
APPLICATIONS INFORMATION
High accuracy, extremely low drift, outstanding stability, and
low cost make the REF102 an ideal choice for all instrumen-
tation and system reference applications. Figures 6 through
14 show a variety of useful application circuits.
6
b) Precision –10V Reference.
a) Resistor Biased –10V Reference
R
S
I
L
4
REF102
2
10V Out
See SBVA008 for more detail.
V+ (1.4V to 26V)
1.4mA <
< 5.4mA
(5V
I
L)
R
S
2
6
4
10V
OPA227
R
1
2k
C
1000pF
1
10V Out
15V
REF102
V+ (1.4V to 26V)
FIGURE 6. –10V Reference Using a) Resistor or b) OPA227.
NO C
N
C
N = 1F
FIGURE 5. Effect of 1
F Noise Reduction Capacitor on
Broadband Noise (f–3dB = 1MHz)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| REF102CP | 功能描述:基准电压& 基准电流 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 |
| REF102CP | 制造商:Texas Instruments 功能描述:IC VOLT REFERENCE 10V |
| REF102CPG4 | 功能描述:基准电压& 基准电流 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 |
| REF102CU | 功能描述:基准电压& 基准电流 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 |
| REF102CU/2K5 | 功能描述:基准电压& 基准电流 Prec Vltg Ref 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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