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參數資料
| 型號： | LM334S8#PBF |
| 廠商： | Linear Technology |
| 文件頁數： | 1/12頁 |
| 文件大小： | 160K |
| 描述： | IC CURRENT SOURCE 8SOIC |
| 標準包裝： | 100 |
| 功能： | 電流源 |
| 輸入電壓： | 0.8 V ~ 40 V |
| 電流 - 輸出： | 10mA |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SOIC |
| 包裝： | 管件 |
LM134 Series
1
APPLICATIO S
DESCRIPTIO
FEATURES
TYPICAL APPLICATIO
s
Current Mode Temperature Sensing
s
Constant Current Source for Shunt References
s
Cold Junction Compensation
s
Constant-Gain Bias for Bipolar Differential Stage
s
Micropower Bias Networks
s
Buffer for Photoconductive Cell
s
Current Limiter
s
1礎 to 10mA Operation
s
0.02%/V Regulation
s
0.8V to 40V Operating Voltage
s
Can be Used as Linear Temperature Sensor
s
Draws No Reverse Current
s
Supplied in Standard Transistor Packages
Constant Current Source
and Temperature Sensor
The LM134 is a three-terminal current source designed to
operate at current levels from 1礎 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 temperature in degrees Kelvin, the device will
also find wide applications as a temperature sensor. The
temperature dependence of the operating current is
0.336%/癈 at room temperature. For example, a device
operating at 298礎 will have a temperature coefficient of
1礎/癈. The temperature dependence is extremely accu-
rate and repeatable. Devices specified as temperature
sensors in the 100礎 to 1mA range are the LM134-3,
LM234-3 and the LM134-6, LM234-6, with the dash
numbers indicating ?癈 and ?癈 accuracies, respec-
tively.
If a zero temperature coefficient current source is re-
quired, this is easily achieved by adding a diode and a
resistor.
, 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
e 5V
R1
10k
10mV/癒
LM234-3
TA01a
OPERATING CURRENT (礎)
0
500
400
300
200
100
0
400
TA01b
100
200
300
500
225
125
25
75
175
275
R
SET
= 226&
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相關代理商/技術參數 |
參數描述 |
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| LM334SM | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM334SM/NOPB | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM334SMX | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM334SMX/NOPB | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| LM334Z | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數（典型值）:100 PPM / C 串聯 VREF - 輸入電壓（最大值）: 串聯 VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
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