Description:The VRE410 is a low cost, high precision, ±10V reference. Recommended for D/A and A/D converters which require and external precision reference. The device provides ultra-stable ±10V output with ±1.6mV initial accuracy and a temperature coefficient of 1.0 ppm/°C. This improvement in accuracy is made possible by a unique, patented multipoint laser compensation technique. Another key feature of this reference is the 3mV tracking error between the positive and negative output voltages over the full operating t
Apex Microtechnology recommends a 4-layer PCB with a solid ground plane, and a thermal pad connected to a heat sink or a thermal via to ensure efficient heat dissipation. A minimum of 1 oz copper thickness is recommended for the PCB.
To ensure stable and accurate output voltage, it's essential to decouple the input and output pins with ceramic capacitors (e.g., 10uF and 100nF) and use a low-ESR output capacitor (e.g., 10uF). Additionally, maintain a stable input voltage and minimize noise on the input lines.
The VRE410BS can tolerate up to 100mV of input voltage ripple and noise. However, it's recommended to keep the input voltage ripple and noise below 50mV to ensure optimal performance and stability.
Apex Microtechnology recommends using an external current limiting resistor or a fuse in series with the input voltage to protect the device from overcurrent conditions. Additionally, consider adding a short-circuit protection circuit, such as a current sense resistor and a comparator, to detect and respond to short-circuit conditions.
While the VRE410BS can operate with an input voltage range of 4.5V to 18V, Apex Microtechnology recommends an input voltage range of 5V to 15V for optimal performance and stability.
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VRE410BS Overview
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