参数资料
| 型号： | VRE310JS |
| 厂商： | Apex Microtechnology |
| 文件页数： | 3/4页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES PREC 10V 8-SMT |
| 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： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SMD，扁平引线 |
| 供应商设备封装： | 8-SMT |
| 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
相关PDF资料 |
PDF描述 |
|---|---|
| W83310DG TR | IC REG BUS TERM 2A 8-SOIC |
| X40015V8I-CT1 | IC VOLTAGE MONITOR DUAL 8-TSSOP |
| X40021V14I-CT1 | IC VOLTAGE MONITOR DUAL 14-TSSOP |
| X40035V14I-CT1 | IC VOLTAGE MONITOR TRPL 14-TSSOP |
| X4005S8I-4.5A | IC SUPERVISOR CPU I2C 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| VRE310K | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Low Cost Precision Reference |
| VRE310KD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| VRE310KS | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| VRE310L | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Low Cost Precision Reference |
| VRE310LD | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
发布紧急采购，3分钟左右您将得到回复。