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參數(shù)資料
| 型號(hào)： | LM134H-3 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Constant Current Source and Temperature Sensor |
| 中文描述： | 恒流源和溫度傳感器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 164K |
| 代理商： | LM134H-3 |
LM134 Series
1
APPLICATIU
DESCRIPTIOU
The LM134 is a three-terminal current source designed to
operate at current levels from 1
μ
A to 10mA, as set by an
external resistor. The device operates as a true two-
terminal current source, requiring no extra power connec-
tions or input signals. Regulation is typically 0.02%/V and
terminal-to-terminal voltage can range from 800mV to
40V.
Because the operating current is directly proportional to
absolute temperaturein degrees Kelvin, the device will
also find wide applications as a temperature sensor. The
temperature dependence of the operating current is
0.336%/
°
C at room temperature. For example, a device
operating at 298
μ
A will have a temperature coefficient of
1
μ
A/
°
C. The temperature dependence is extremely accu-
rate and repeatable. Devices specified as temperature
sensors in the 100
μ
A to 1mA range are the LM134-3,
LM234-3 and the LM134-6, LM234-6, with the dash
numbers indicating
±
3
°
C and
±
6
°
C accuracies, respec-
tively.
If a zero temperature coefficient current source is re-
quired, this is easily achieved by adding a diode and a
resistor.
FEATURES
TYPICAL APPLICATIOU
I
Current Mode Temperature Sensing
I
Constant Current Source for Shunt References
I
Cold Junction Compensation
I
Constant-Gain Bias for Bipolar Differential Stage
I
Micropower Bias Networks
I
Buffer for Photoconductive Cell
I
Current Limiter
I
1
μ
A to 10mA Operation
I
0.02%/V Regulation
I
0.8V to 40V Operating Voltage
I
Can be Used as Linear Temperature Sensor
I
Draws No Reverse Current
I
Supplied in Standard Transistor Packages
Constant Current Source
and Temperature Sensor
, LTC and LT are registered trademarks of Linear Technology Corporation.
Remote Temperature Sensor with Voltage Output
Operating Current vs Temperature
V
+
V
–
R
R
SET
226
V
IN
≥
5V
R1
10k
10mV/
°
K
LM234-3
TA01a
OPERATING CURRENT (
μ
A)
0
T
°
K
500
400
300
200
100
0
400
TA01b
100
200
300
500
225
125
25
–75
–175
–275
R
SET
= 226
T
°
C
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM134H-6 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LM134-LM234 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:THREE TERMINAL ADJUSTABLE CURRENT SOURCES |
| LM134Z | 制造商: 功能描述: 制造商:undefined 功能描述: |
| LM134ZT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Three terminal adjustable current sources |
| LM135 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Precision temperature sensors |
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