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参数资料
| 型号： | VRE4110C |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 1.024 V, PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 5/7页 |
| 文件大小： | 223K |
| 代理商： | VRE4110C |
BASIC CIRCUIT CONNECTION
Figure 3 shows the proper connection of the
VRE4100 series voltage reference.
To achieve the specified performance, pay careful
attention
to
the
layout.
Commons
should
be
connected to a single point to minimize interconnect
resistances. This will reduce voltage errors, noise
pickup, and noise coupled from the power supply.
VRE4100DS REV. A MAY 01
Figure 2
External Connections
2
6
+ V
OUT
3
+ V
IN
VRE4100
NC
Enable
4
C
OUT 1F
Reference output
Vout
6
This pin must be left open
NC
1,5,7,8
Pulled to V
in for normal
operation.
Enable
3
Positive power supply input
These must be connected to
ground
Vin
GND
2
4
PIN DESCRIPTION
www.thaler.com
TEMPERATURE PERFORMANCE
The VRE4100 is designed for applications where
the initial error at room temperature and drift over
temperature are important to the user.
For many
instrument manufacturers, a voltage reference with
a temperature coefficient of 1ppm/°C makes it
possible
to
eliminate
a
system
temperature
calibration, a slow and costly process.
Of the three TC specification methods (slope,
butterfly, and box), the box method is most
commonly used. A box is formed by the min/max
limits for the nominal output voltage over the
operating temperature range. The equation follows:
This method corresponds more accurately to the
method of test and provides a closer estimate of
actual error than the other methods.
The box
method guarantees limits for the temperature error
but does not specify the exact shape or slope of the
device under test.
For example a designer who needs a 14-bit
accurate data acquisition system over the industrial
temperature range (-40°C to +85°C), will need a
voltage reference with a temperature coefficient
(TC) of 1.0ppm/°C if the reference is allowed to
contribute an error equivalent to 1LSB.
Figure 3
shows the required reference TC vs. T change from
25°C for resolution ranging from 8 bits to 20 bits.
0.01
0.1
1
10
100
1000
10000
1
10
100
20 BIT
18 BIT
16 BIT
14 BIT
12 BIT
10 BIT
8 BIT
ReferenceTC
(ppm/°C)
Figure 3
Reference TC vs. T change from 25°C for 1 LSB change
1,5,7,8
)
10
(
)
(
.
6
min
max
min
max
T
V
C
T
al
no
=
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相关代理商/技术参数 |
参数描述 |
|---|---|
| VRE4110K | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Low Cost, SOIC-8 Precision References |
| VRE4112 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Precision Voltage Reference |
| VRE4112B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Low Cost, SOIC-8 Precision References |
| VRE4112C | 功能描述:基准电压& 基准电流 Ref. +1.25V, 0/70C 2ppm 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 |
| VRE4112K | 功能描述:基准电压& 基准电流 Ref. +1.25V, -40/85C 3ppm 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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