24-bit synchronous sampling analog-to-digital converter GX131E0X replaces ADS131E0X for application in signal analyzers

Signal analyzers are primarily used in electronic measurements, communication testing, and industrial diagnostics to test and verify parameters such as frequency, power, phase noise, and harmonic distortion of signal sources. Depending on their purpose and functionality, signal analyzers can be categorized into various types, including spectrum analyzers, network analyzers, and logic analyzers. They require precise acquisition of weak signals while handling multi-channel synchronous measurements. This article recommends the use of a 24-bit synchronous sampling analog-to-digital converter, the GX131E0X, for signal analyzers, as its performance fully meets the requirements of signal acquisition.

The GX131E0X analog-to-digital converter features a programmable gain amplifier, internal reference, and on-board oscillator. With its wide dynamic range, scalable data transfer rate, and internal fault detection monitoring, it is favored for industrial power monitoring and protection as well as test and measurement applications. The true high-impedance input allows the GX131E0X to be directly connected to resistor voltage divider networks or voltage transformers for line voltage measurement, or to current transformers or Rogowski coils for current measurement.

The high integration and outstanding performance of the GX131E0X allow it to pin-to-pin replace TI‘s ADS131E0X. The GX131E0X reduces size, power consumption, and overall solution costs, making it a highly suitable replacement option currently. GXSC provides comprehensive technical support and stable supply channels throughout the entire process.

The characteristics of the GX131E0X are as follows:

• Four/Six/Eight-Channel Differential Analog-to-Digital Converter Input

• Dynamic range: 120dB at 1kSPS; Crosstalk: -125dB; Total harmonic distortion: -108dB at 50Hz and 60Hz

• Unipolar power supply range: Analog power supply 3V to 5V, digital power supply 1.8V to 3.6V

• Low power consumption: 2.3mW per channel

• Data rate: 0.25, 0.5, 1, 2, 4, 8, 16, 32, and 64 kSPS

• Programmable gain: 1, 2, 3, 4, 6, 8, 12, and 24

• Fault detection and device testing functions

• SPITM data interface and four general-purpose input/output interfaces

• Outstanding ESD capability

• Packaging: QFP-64, BGA-64

• Operating temperature range: -40°C to +105°C