The REF200AU should be placed close to the analog-to-digital converter (ADC) or digital-to-analog converter (DAC) it is referencing, with a low-impedance connection to the analog ground plane. The device should be oriented to minimize noise coupling, and a decoupling capacitor (e.g., 10nF) should be placed as close as possible to the device.
The REF200AU requires a stable power supply with a voltage range of 4.5V to 36V. A decoupling capacitor (e.g., 10uF) should be placed between the power supply pins (VCC and GND) to filter out noise. Additionally, the power supply should be able to provide a minimum of 1mA of current to ensure proper operation.
The REF200AU operates over a temperature range of -40°C to 125°C. The voltage reference output has a temperature coefficient of ±10ppm/°C, which means the output voltage will vary by ±10ppm for every 1°C change in temperature. This can be compensated for by using temperature compensation circuits or by using a temperature-stable voltage reference.
The output impedance of the REF200AU is typically around 0.2Ω. This can affect the accuracy of the voltage reference output, especially when driving high-impedance loads. To minimize the impact, it's recommended to buffer the output with an op-amp or use a low-impedance load.
The REF200AU is susceptible to electromagnetic interference (EMI) and radio-frequency interference (RFI). To minimize their impact, use a shielded enclosure, keep the device away from high-frequency sources, and use a low-pass filter or ferrite bead to filter out high-frequency noise.
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
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