LT1004IDG4-1-2

Noise - 0.1Hz to 10Hz:	--
Base Part Number:	LT1004-1.2
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Current - Cathode:	10µA
Current - Supply:	--
Voltage - Input:	--
Noise - 10Hz to 10kHz:	60µVrms
Series:	--
Temperature Coefficient:	20ppm/°C Typical
Tolerance:	±0.32%
Current - Output:	20mA
Voltage - Output (Min/Fixed):	1.235V
Output Type:	Fixed
Reference Type:	Shunt
Part Status:	Active
Packaging:	Tube

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Introduction of LT1004IDG4-1-2

The LT1004IDG4-1-2 is a Voltage Reference IC from the Analog Devices family of linear ICs. It is a two-terminal adjustable voltage reference circuit which requires minimal external components. The LT1004IDG4-1-2 consists of a precision zener reference with a high drive output current and low power consumption. It is used in applications to convert a precision reference voltage into a proportional output current.

Application Field of LT1004IDG4-1-2

The LT1004IDG4-1-2 device is a very useful tool for applications in many areas such as automotive, industrial, Aerospace and Medical. It finds application in battery powered devices, as well as in precision current sources. The device can also be used to monitor motor current or to measure battery current, as well as for current sensing in laptop computers and medical equipment.

Working Principle of LT1004IDG4-1-2

The device consists of a precision zener reference diode along with a series pass transistor, a current mirror and an output clamp. It operates on the principle of a Zener diode, which is a special type of diode which has a reverse breakdown voltage with precise characteristics. The zener diode is connected to the current mirror, which provides precise current copying of the reference diode. The output clamp is used to limit the output voltage.The LT1004IDG4-1-2 is designed to provide a highly accurate, stable and ripple-free reference voltage. The external components are used to set the reference voltage, where the zener diode sets the nominal reference voltage and the series pass transistor provides a way to adjust the reference voltage. This voltage reference can be adjusted from 3V to 12V and provides low output voltage (typically about 250uV). It is capable of supplying up to 8mA of output current.

Conclusion

The LT1004IDG4-1-2 is a voltage reference IC from the Analog Devices family and is used for many applications in various fields. It is capable of providing accurate reference voltage and low output voltage with a good load regulation. The device is suitable for low power applications, battery powered devices and precision current sources.

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