Datasheet LT3092 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | 200mA 2-Terminal Programmable Current Source |
| 页数 / 页 | 24 / 1 — FeaTures. DescripTion. Programmable 2-Terminal Current Source. Maximum … |
| 文件格式/大小 | PDF / 460 Kb |
| 文件语言 | 英语 |
FeaTures. DescripTion. Programmable 2-Terminal Current Source. Maximum Output Current: 200mA
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LT3092 200mA 2-Terminal Programmable Current Source
FeaTures DescripTion
n
Programmable 2-Terminal Current Source
The LT®3092 is a programmable 2-terminal current n
Maximum Output Current: 200mA
source. It requires only two resistors to set an output n
Wide Input Voltage Range: 1.2V to 40V
current between 0.5mA and 200mA. A multitude of analog n
Input/Output Capacitors Not Required
techniques lend themselves to actively programming the n
Resistor Ratio Sets Output Current
output current. The LT3092 is stable without input and n
Initial Set Pin Current Accuracy: 1%
output capacitors, offering high DC and AC impedance. This n
Reverse-Voltage Protection
feature allows operation in intrinsically safe applications. n
Reverse-Current Protection
The SET pin features 1% initial accuracy and low tem- n <0.001%/ V Line Regulation Typical perature coefficient. Current regulation is better than n Current Limit and Thermal Shutdown Protection 10ppm/V from 1.5V to 40V. n Available in 8-Lead SOT-23, 3-Lead SOT-223 and 8-Lead 3mm × 3mm DFN Packages The LT3092 can operate in a 2-terminal current source configuration in series with signal lines. It is ideal for driv- ing sensors, remote supplies, and as a precision current
applicaTions
limiter for local supplies. n 2-Terminal Floating Current Source Internal protection circuitry includes reverse-battery and n GND Referred Current Source reverse-current protection, current limiting and thermal n Variable Current Source limiting. The LT3092 is offered in the 8-lead TSOT-23, n In-Line Limiter 3-lead SOT-223 and 8-lead 3mm × 3mm DFN packages. n Intrinsic Safety Circuits L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion Adjustable 2-Terminal Current Source SET Pin Current vs Temperature
VIN – VOUT = 1.2V TO 40V 10.100 LT3092 IN 10.075 10.050 10µA 10.025 + – 10.000 9.975 SET OUT SET PIN CURRENT (µA) 9.950 RSET ROUT 9.925 3092 TA01a 9.900–50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) ISOURCE = 10µA • RSET 3092 TA01b ROUT 3092fc For more information www.linear.com/LT3092 1 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Package Description Related Parts
FeaTures DescripTion
n
Programmable 2-Terminal Current Source
The LT®3092 is a programmable 2-terminal current n
Maximum Output Current: 200mA
source. It requires only two resistors to set an output n
Wide Input Voltage Range: 1.2V to 40V
current between 0.5mA and 200mA. A multitude of analog n
Input/Output Capacitors Not Required
techniques lend themselves to actively programming the n
Resistor Ratio Sets Output Current
output current. The LT3092 is stable without input and n
Initial Set Pin Current Accuracy: 1%
output capacitors, offering high DC and AC impedance. This n
Reverse-Voltage Protection
feature allows operation in intrinsically safe applications. n
Reverse-Current Protection
The SET pin features 1% initial accuracy and low tem- n <0.001%/ V Line Regulation Typical perature coefficient. Current regulation is better than n Current Limit and Thermal Shutdown Protection 10ppm/V from 1.5V to 40V. n Available in 8-Lead SOT-23, 3-Lead SOT-223 and 8-Lead 3mm × 3mm DFN Packages The LT3092 can operate in a 2-terminal current source configuration in series with signal lines. It is ideal for driv- ing sensors, remote supplies, and as a precision current
applicaTions
limiter for local supplies. n 2-Terminal Floating Current Source Internal protection circuitry includes reverse-battery and n GND Referred Current Source reverse-current protection, current limiting and thermal n Variable Current Source limiting. The LT3092 is offered in the 8-lead TSOT-23, n In-Line Limiter 3-lead SOT-223 and 8-lead 3mm × 3mm DFN packages. n Intrinsic Safety Circuits L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion Adjustable 2-Terminal Current Source SET Pin Current vs Temperature
VIN – VOUT = 1.2V TO 40V 10.100 LT3092 IN 10.075 10.050 10µA 10.025 + – 10.000 9.975 SET OUT SET PIN CURRENT (µA) 9.950 RSET ROUT 9.925 3092 TA01a 9.900–50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) ISOURCE = 10µA • RSET 3092 TA01b ROUT 3092fc For more information www.linear.com/LT3092 1 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Package Description Related Parts