GXSC Voltage Reference Source Replacement for REF34xx/MAX6070/71A/ADR34xx in Communication Modules

Communication modules serve as the critical hub of modern communication systems, primarily comprising RF front-ends, baseband processors, ADC/DAC data conversion units, power management units, and interface circuits. The precise operation of these core components relies on stable and accurate reference voltages. Even minor fluctuations in reference voltage can cause signal distortion, increased transmission error rates, and reduced communication accuracy. GXSC‘s high-precision voltage reference source offers ultra-high initial accuracy, 6ppm/°C low temperature drift, low power consumption, and a compact package, making it the preferred choice for reference circuits in communication modules.

The ADC/DACs in communication modules are typically high-resolution devices (14-bit to 16-bit). They require a reference voltage with ultra-high initial accuracy to ensure precise conversion between analog and digital signals, preventing signal distortion caused by conversion errors. GXSC‘s voltage reference source achieves an initial accuracy of ±0.08% (Maximum), featuring low temperature drift (3ppm/°C), low power consumption, and high-precision CMOS technology. This device maintains an initial accuracy of ±0.08% with low operating current, consuming less than 125μA.

Additionally, the chip delivers an extremely low output noise of 15μVp-p/V, enabling high signal integrity for high-resolution data converters in noise-critical systems. Its low-temperature coefficient voltage reference maintains stable output across a wide temperature range (-40°C to 125°C).

The GXSC voltage reference source delivers industry-leading long-term stability, with a typical change of 45ppm after 1000 hours of initial power-up, ensuring sustained system accuracy. Simultaneously, its power consumption is exceptionally low—typically 125μA at room temperature and less than 150μA across the full temperature range. This reduces overall system power consumption while minimizing chip self-heating effects, thereby safeguarding output voltage precision.

GXSC Voltage Reference Performance Specifications:

• Initial Accuracy: ±0.08% (Max)

• Temperature Coefficient: 3 ppm/°C

• Operating Temperature Range: -40°C to 125°C

• Output Current: ±10 mA

• Low Quiescent Current: 125 μA

• Ultra-Low Zero-Load Dropout: 200 mV

• Input voltage: 2.7~5.5V

• Output 1/f noise (0.1Hz to 10Hz): 15μVp-p/V

• Long-term stability: 45ppm/1000 hours

• Supports compact SOT-23(6) package

• Pin-to-pin replacement for REF34xx/MAX6070/71A/ADR34xx