REF195ESZ-REEL Integrated Circuits (ICs)

Noise - 0.1Hz to 10Hz:	50µVp-p
Base Part Number:	REF195
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 - Supply:	45µA
Voltage - Input:	5.1 V ~ 15 V
Noise - 10Hz to 10kHz:	--
Series:	REF19
Temperature Coefficient:	5ppm/°C
Tolerance:	±0.04%
Current - Output:	30mA
Voltage - Output (Min/Fixed):	5V
Output Type:	Fixed
Reference Type:	Series
Part Status:	Active
Packaging:	Tape & Reel (TR)

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REF195ESZ-REEL Voltage Reference Application Field and Working Principle

The REF195ESZ-REEL is a precision voltage reference module developed by Texas Instruments and a member of its REF19x voltage reference family. It is a single-chip voltage reference in an industry-standard, automotive-grade 5-pin SOT-23 package, designed to minimize DRV errors and improve system accuracy while operating within a wide temperature range in space-limited automotive designs. This device has an excellent voltage reference accuracy, low noise and low offset voltage, making it an ideal choice for automotive applications where long term reliability and high performance are required. Applications of REF195ESZ-REEL Voltage ReferenceThis chip operates within a temperature range of -40°C to 125°C and has an output voltage range of 2.5V to 15V. It is used in a variety of automotive applications, including automotive sensors, automotive electronic control units (ECU), fuel injectors, electronic ignition systems, airbag controllers and body control modules. In addition, it is also used in precision motor control applications, such as motor speed and position control, motor torque and current control, and speed and acceleration control.Working Principle of REF195ESZ-REEL Voltage ReferenceThe REF195ESZ-REEL voltage reference is constructed using a combination of two distinct components: an output buffer buffer and a temperature-compensated high accuracy band gap reference. The band gap reference, which is the heart of the chip, uses an on-chip splitter resistor network to generate a very precise voltage reference and is temperature-stabilized through on-chip thermal insulation. This achieves excellent line and load regulation, low drift and low noise operation.The output buffer, which is connected to the band gap reference, is designed to buffer the output voltage and provide a low impedance voltage source that is less sensitive to external noise. This results in improved accuracy compared to unbuffered references, making it excellent for systems requiring multiple references. The output voltage is adjustable through an external resistor divider.In summary, the REF195ESZ-REEL is a high precision, automotive-grade single-chip voltage reference that provides excellent temperature stability and low noise performance in space-limited applications. It is used in a variety of automotive applications and motor control applications, where accuracy, reliability and long-term performance are required.

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