Voltage Reference Source GX4520/4525/4540 Replaces ADR4520/4525/4540 for High-Precision Industrial Applications

In high-precision industries, the accuracy and stability of equipment ensure product quality and production efficiency. Accuracy determines whether products can meet design requirements and satisfy the demands of high-end application scenarios, while stability guarantees the continuity and consistency of the production process, reducing production costs. To achieve these goals, high-precision industries impose stringent requirements on various electronic devices and systems, among which voltage reference sources can provide stable and accurate voltage references.

The high-precision, low-temperature drift, low-noise, and low-power voltage references GX4520/4525/4540 from GXSC can meet the demanding requirements of high-precision industrial applications. These devices achieve an absolute voltage accuracy of within ±0.1%. Within the operating temperature range of -55°C to 125°C, the typical temperature drift of GX4520/4525/4540 is 5ppm/°C, while the ultra-low temperature drift version exhibits a drift as low as 3ppm/°C. At an output voltage of 2.5V, the 1/f noise voltage is 9uVpp, and the power supply rejection ratio (PSRR) of the device reaches up to 60dB within the 0Hz~1KHz range.

The GX4520/4525/4540 offers three output voltage options: 2.048V, 2.5V, and 4.096V, and can replace the corresponding counterparts ADR4520, ADR4525, and ADR4540. Among them, the operating voltage range for ADR4520 and ADR4525 counterparts is 3.1V~5.5V, while for the ADR4540 counterpart, it is 4.75V~5.5V. The typical quiescent operating current is 900A, and the maximum load current is ±10mA.

The series product features an 8-pin SOIC package, compatible with imported products such as the ADR4520/25/40, and operates within a temperature range of -55°C to 125°C. The performance specifications are as follows:

Input voltage range: 2.3~6.5V

Ultra-low temperature drift, down to 3ppm/°C

The initial voltage absolute accuracy reaches ±0.1%

0Hz~1kHz, 60dB power supply ripple rejection

0.1Hz~10Hz, 1/f noise as low as 9μVpp

900μA low quiescent current

±10mA drive current

Small Outline Integrated Circuit (SOIC) 8-pin package

Multiple voltage options: 2.048V, 2.500V, 4.096V

The ESD protection rating is 6kV (HBM)

The operating temperature range is -55°C to 125°C