ADR4520ARZ

ADR4520 is a precision ultra-low noise bandgap voltage reference with fixed 2.0 V output. ARZ refers to 8-lead SOIC narrow body surface mount package, shipped in tube packaging for prototype development and small batch assembly.

This high-stability voltage reference is designed for precision measurement circuits and high-resolution data acquisition systems. It delivers a fixed 2.000 V accurate output voltage with outstanding long-term stability and minimal temperature drift.

The initial output voltage tolerance is strictly controlled, while the typical temperature drift coefficient is merely 2 ppm/°C across the whole operating temperature range, guaranteeing steady reference voltage output amid ambient temperature changes. The device features extremely low output noise voltage, which effectively prevents noise degradation of conversion accuracy for high-bit ADC and DAC devices.

The input supply voltage ranges from 2.8 V to 18 V, compatible with common single-sided analog power supplies in industrial instruments. Typical quiescent supply current is kept low to minimize overall system power consumption. It can source and sink small load currents directly without buffer amplifiers in most low-current applications. Integrated thermal hysteresis suppression design further enhances long-term output consistency after repeated temperature cycling. Load regulation and line regulation performance are excellent, resisting disturbances from power supply fluctuation and load variation.

Packaged in compact 8-pin SOIC surface mount housing, occupying little PCB space for miniaturized analog front-end modules. Moisture Sensitivity Level is MSL3; all reflow soldering operations shall be completed within 168 hours once the original vacuum package is opened. Tube delivery mode supports manual breadboard testing and small-volume trial production conveniently.

Industrial operating temperature range spans -40 °C to +125 °C, enabling reliable continuous operation in industrial process instruments, portable precision test equipment, medical analytical devices and laboratory signal conversion systems under harsh temperature conditions. Manufactured with lead-free production technology, the component complies with global RoHS environmental directives. The simple peripheral circuit configuration reduces auxiliary passive components and simplifies high-precision analog circuit layout.

Precision voltage reference for 16-bit to 24-bit SAR and sigma-delta ADCs

Stable reference power supply for industrial digital-to-analog converters

Portable handheld measuring instruments and battery-powered sensor nodes

Laboratory precision calibration sources and voltage standard circuits

Medical diagnostic equipment analog signal conditioning modules