The REF102BUG4 should be placed close to the analog-to-digital converter (ADC) or digital-to-analog converter (DAC) it is supplying, and the input and output pins should be routed away from noisy digital signals. A low-impedance, low-inductance path should be used to connect the REF102BUG4 to the power supply, and a 0.1 μF to 1 μF decoupling capacitor should be placed close to the device.
The REF102BUG4 has a built-in power-on reset (POR) circuit that ensures the output voltage is stable and accurate after power-up. During power-down, the output voltage will decay slowly to prevent any voltage spikes or oscillations. It is recommended to sequence the power supply to the REF102BUG4 after the main power supply has stabilized.
The REF102BUG4 has a typical temperature coefficient of 10 ppm/°C, which means that the output voltage will change by 10 ppm for every 1°C change in temperature. The device is specified to operate from -40°C to 125°C, and the output voltage will remain stable and accurate within the specified tolerance over this temperature range.
The REF102BUG4 has a bandwidth of 500 kHz and is suitable for most analog-to-digital converter (ADC) and digital-to-analog converter (DAC) applications. However, for high-speed or high-frequency applications, a higher-bandwidth voltage reference such as the REF3030 or REF3040 may be required.
The REF102BUG4 has a high power supply rejection ratio (PSRR) of 90 dB at 1 kHz, which helps to reject noise and interference from the power supply. Additionally, the device has a low output impedance, which helps to reduce the impact of EMI and RFI on the output voltage. However, it is still recommended to use proper shielding and filtering techniques to minimize the impact of EMI and RFI on the overall system.
REF102BUG4 datasheet
by Texas Instruments
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