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| 型号： | VRE310AD |
| 厂商： | Apex Microtechnology |
| 文件页数： | 3/4页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES PREC 10V 8-DIP |
| 标准包装： | 1 |
| 基准类型： | 串联，精度 |
| 输出电压： | 10V |
| 容差： | ±1mV |
| 温度系数： | 0.6ppm/°C |
| 输入电压： | 13.5 V ~ 22 V |
| 通道数： | 1 |
| 电流 - 静态： | 7mA |
| 电流 - 输出： | 10mA |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.400"，10.16mm） |
| 供应商设备封装： | 8-DIP |
| 包装： | 管件 |
VRE310
2. TYPICAL PERFORMANCE CURVES
V OUT vs. TEMPERATURE
Temperature o C
VRE310A
V OUT vs. TEMPERATURE
Temperature o C
VRE310J
QUIESCENT CURRENT VS. TEMP
Temperature o C
JUNCTION TEMP. RISE VS. OUTPUT CURRENT
Output Current (mA)
PSRR VS. FREQUENCY
Frequency (Hz)
3. THEORY OF OPERATION
The following discussion refers to the block diagram in Figure 1. In operation, approximately 6.3 V is applied to
the noninverting input of the op amp. The voltage is amplified by the op amp to produce a 10 V output. The gain is
determined by the networks R1 and R2: G=1 + R2/R1. The 6.3 V zener diode is used because it is the most stable
diode over time and temperature.
The zener operating current is derived from the regulated output voltage through R3. This feedback arrangement
provides a closely regulated zener current. This current determines the slope of the references’ voltage vs. tempera-
ture function. By trimming the zener current a lower drift over temperature can be achieved. But since the voltage
vs. temperature function is nonlinear this compensation technique is not well suited for wide temperature ranges.
A nonlinear compensation network of thermistors and resistors is used in the VRE series voltage references. This
proprietary network eliminates most of the nonlinearity in the voltage vs. temperature function. By then adjusting the
slope, a very stable voltage is produced over wide temperature ranges.
This network is less than 2% of the overall network resistance so it has a negligible effect on long term stability.
By using highly stable resistors in our network, we produce a voltage reference that also has very good long term
stability.
VRE310DS
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| VRE310AS | 功能描述:基准电压& 基准电流 Ref. +10V, 0/70C 0.6ppm 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 |
| VRE310B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Low Cost Precision Reference |
| VRE310BD | 功能描述:基准电压& 基准电流 Ref. +10V, 0/70C 1ppm 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 |
| VRE310BS | 功能描述:基准电压& 基准电流 Ref. +10V, -55/125C 1ppm 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 |
| VRE310C | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Low Cost Precision Reference |
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