Description:The EL8170 and EL8173 are micropower instrumentation amplifiers optimized for single supply operation over the +2. 4V to +5. 5V range. Inputs and outputs can operate rail-to-rail. As with all instrumentation amplifiers, a pair of inputs provide very high common-mode rejection and are completely independent from a pair of feedback terminals. The feedback terminals allow zero input to be translated to any output offset, including ground. A feedback divider controls the overall gain of the amplifier. The EL817
A good PCB layout is crucial for the EL8170FSZ. Ensure a solid ground plane, keep the input and output traces short and separate, and use a common mode choke to reduce EMI. Refer to the application note 'EL8170FSZ PCB Layout Guidelines' for more details.
The input capacitor value depends on the input voltage, frequency, and desired ripple voltage. A general rule of thumb is to use a capacitor with a value between 1uF to 10uF, with a voltage rating at least 1.5 times the input voltage. Consult the datasheet and application notes for specific guidance.
The EL8170FSZ can deliver up to 2A of output current, but this depends on the input voltage, output voltage, and ambient temperature. Be sure to check the datasheet's electrical characteristics table and thermal derating curves to ensure safe operation.
The EL8170FSZ has a built-in overcurrent protection feature. Connect a sense resistor (Rs) between the output pin and GND, and set the overcurrent threshold voltage (Vocp) using an external resistor divider. Refer to the datasheet's overcurrent protection section for more information.
The EN (enable) pin is used to turn the regulator on or off. Connect the EN pin to a logic signal (e.g., from a microcontroller) to enable or disable the output. When EN is low, the regulator is in shutdown mode, and the output is disabled.
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EL8170FSZ Overview
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