The recommended input capacitor value is 10uF to 22uF, depending on the input voltage and desired noise rejection. A larger capacitor value can provide better noise rejection, but may also increase the startup time.
Yes, the LM385Z-1.2/LFT3 can be used as a voltage reference for an ADC. However, it's essential to ensure that the reference voltage is stable and accurate, and that the ADC's input range is compatible with the LM385Z-1.2/LFT3's output voltage.
To ensure stability and prevent oscillation, it's crucial to follow the recommended PCB layout guidelines, use a sufficient input capacitor, and avoid long traces or wires between the input and output pins. Additionally, decoupling capacitors on the input and output pins can help reduce noise and oscillation.
The maximum output current of the LM385Z-1.2/LFT3 is 10mA. Exceeding this current limit can cause the output voltage to droop or become unstable.
The LM385Z-1.2/LFT3 is rated for operation up to 125°C. However, the device's accuracy and stability may degrade at higher temperatures. It's essential to consider the device's temperature coefficient and ensure that the operating temperature is within the specified range.
LM385Z-1.2/LFT3 datasheet
by Texas Instruments
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