LM136H-5.0 Integrated Circuits (ICs)

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The LM136H-5.0 integrated circuit (IC) is part of a family of reference devices manufactured by Texas Instruments and includes the LM236 and LM336 devices. The LM136H-5.0 is a 5-volt precision adjustable shunt voltage reference that can be used in a wide variety of applications. The device is an integrated circuit monolithic processor that has been designed to be small and easy to use. It is suitable for operation in extreme temperatures and can provide a stable reference voltage over a wide temperature range.

The LM136H-5.0 is designed to operate from a single supply of 5 volts and consumes only 250 μA of supply current. The nominal temperature coefficient of the output voltage is 25 μV/mV/°C, which is less than that of the LM136-1.0, which has a temperature coefficient of 50 μV/mV/°C. The device is also designed to have good power supply rejection characteristics, which makes it suitable for use in noisy power supplies.

The LM136H-5.0 is a three-terminal reference device that is adjustable over a range of 0.1 to 5.0 volts. The device also features a wide temperature operating range of -40°C to +85°C, a typically high emitter-base forward voltage of 0.85V, and an output impedance of 0.02 ohms. The device also features a low power supply rejection ratio (PSSR) of 30 dB compared to the LM138-1.0 which has a PSSR of 70 dB.

The LM136H-5.0, Output Voltage tuning feature is unique and allows the user to adjust the output voltage of the device in steps of 0.1V for any precision voltage between 0.1 and 5 V. The output voltage range can be adjusted by using a resistor divider (or potentiometer) connected between the ADJ pin and the output terminal. The adjustment range is such that the voltage at the ADJ pin can be varied from 0 to 5 volts, with 0.1V increments. When the voltage at the ADJ pin exceeds 5 volts,the device enters the regulated output mode and maintains a constant output voltage.

The working principle of the LM136H-5.0 is relatively simple. The device is an emitter coupled differential pair with a transistor active stage in the emitter circuit. The differential pair operates as a voltage reference, with the output current being proportional to the voltage difference between the base-emitter junction of each transistor, and the base-emitter junction of the active transistor. When the voltage at the ADJ pin exceeds 5 volts, the device enters a regulated output mode, and maintains a constant output voltage, regardless of changes in temperature and/or supply voltage. This ensures that the device\'s output is always within a predictable range.

The LM136H-5.0 has a wide range of applications, including precision voltage references, high accuracy voltage regulators, portable instrumentation, power supply regulators, and other systems requiring precise voltage regul ation. It is also suitable for use in portable instruments and systems requiring precision voltage regulation, as well as in low power applications. Additionally, the device can be used in applications in extreme temperatures, such as in automotive and aerospace applications.

In conclusion, the LM136H-5.0 is a 5-volt precision adjustable shunt voltage reference IC manufactured by Texas Instruments. It features a wide temperature operating range, PSSR of 30 dB, and a range of 0.1 to 5.0 volts. It is suitable for use in a wide variety of applications including precision voltage references, high accuracy regulators, and low power applications, as well as in automotive and aerospace applications. Thanks to its adjustable output, small size, and low current consumption, the LM136H-5.0 can be used for a variety of applications requiring precise voltage regulation.

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