Low power regulator reference
The described voltage reference circuit is designed to deliver a consistent output voltage while minimizing the influence of fluctuations in the supply voltage, a characteristic referred to as power supply rejection ratio (PSRR). A PSRR exceeding 100 dB indicates that the circuit is highly effective at filtering out noise and variations from the power supply, ensuring that the output voltage remains stable under varying load conditions.
The circuit typically employs a bandgap reference or a zener diode to establish a stable reference voltage. The use of op-amps can further enhance the performance by buffering the output, providing additional isolation from load variations. Key components may include resistors for setting gain, capacitors for filtering, and possibly a voltage regulator to maintain output stability.
In practical applications, this type of voltage reference circuit is crucial for precision analog circuits, such as analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), where stable reference voltages are necessary for accurate signal processing. The high PSRR allows the circuit to function effectively in environments with significant electrical noise, making it suitable for use in industrial and consumer electronics where power supply variations are common.
Design considerations include the selection of components that can withstand the expected range of operating conditions, as well as thermal stability to ensure that the reference voltage does not drift with temperature changes. Overall, this voltage reference circuit is an essential building block in the design of reliable electronic systems.This simple reference circuit provides a stable voltage reference almost totally free of supply voltage hash Typical power supply rejection exceeds 100 dB. 🔗 External reference
Related Circuits
The major disadvantages of usual linear power supplies are high power dissipation, the size and the appropriated weight. When looking for an alternative solution, I decided to use a switch mode power supply (SMPS). The efficiency of such power...
This document outlines the layout considerations for switch-mode DC-DC converter printed circuit boards (PCBs) aimed at minimizing switching noise and electromagnetic interference (EMI). The layout of switch-mode DC-DC converter PCBs is critical in ensuring efficient operation and compliance with electromagnetic...
The following circuit illustrates the BUZ902DP 300 Watt Audio Power Amplifier Circuit Diagram. Features include audio frequency linearity from 20 Hz to 20 kHz. The BUZ902DP is a high-performance audio power amplifier designed to deliver up to 300 watts of...
The circuit diagram presented is a triac-diac electronic fan regulator designed to reduce power consumption of electric fans, even at low speeds. Traditional resistor-inductor fan regulators tend to generate excess heat, wasting energy when the fan operates at lower...
The IEEE 802.3af standard defines the interaction between power-sourcing equipment and powered devices within a power-over-Ethernet system. The IEEE 802.3af standard, also known as Power over Ethernet (PoE), specifies the mechanisms by which electrical power is transmitted alongside data over...
This circuit conducts a rapid battery test without requiring an external power supply or costly moving-coil voltmeters. It offers two testing ranges: when switch SW1 is configured as indicated in the circuit diagram, it can evaluate batteries ranging from...
Warning: include(partials/cookie-banner.php): Failed to open stream: Permission denied in /var/www/html/nextgr/view-circuit.php on line 713
Warning: include(): Failed opening 'partials/cookie-banner.php' for inclusion (include_path='.:/usr/share/php') in /var/www/html/nextgr/view-circuit.php on line 713