GXSC ADC Replaces ADS8354 in Relay Protectors

Power relay protectors are core protective devices in distribution networks and industrial power supply and distribution systems, ensuring grid operational stability and preventing power supply incidents. Due to the complex operating conditions of distribution lines, where surge loads and transient faults occur frequently, higher standards are set for the sampling synchronization, measurement accuracy, and fault response speed of relay protectors. Taking these requirements into account, the GXSC ADC replaces the ADS8354 in relay protectors

Power relay protectors are core protective devices in distribution networks and industrial power supply and distribution systems, ensuring grid operational stability and preventing power supply incidents. Due to the complex operating conditions of distribution lines, where surge loads and transient faults occur frequently, higher standards are set for the sampling synchronization, measurement accuracy, and fault response speed of relay protectors. Taking these requirements into account, the GXSC dual-channel 16-bit 2MSPS analog-to-digital converter fully meets the application needs of relay protectors.

The GXSC high-performance 16-bit dual-channel synchronous sampling SAR analog-to-digital converter is specifically designed for high-reliability applications such as power protection, power quality monitoring, and three-phase power control. It features 16-bit lossless high precision, dual-channel synchronous sampling, 700 kSPS high-speed conversion, fully differential noise-immune inputs, a built-in reference source, and wide-temperature high stability. It can simultaneously perform lossless and precise acquisition of power voltage and current signals.

1. Dual-channel synchronous sampling requirements: Power protection relies on the phase relationship between voltage and current to calculate power, impedance, and power factor. It is essential to ensure that voltage and current sampling occur at exactly the same time to eliminate false fault judgments and parameter inaccuracies caused by phase shifts.

2. Ultra-high-precision quantification requirements: Distribution systems experience gradual faults such as slight overloads, hidden harmonics, and minor voltage deviations. A high-resolution ADC is required to accurately capture minute signal changes, enabling precise fault identification and preventing the missed detection of minor faults.

4. Strong anti-interference acquisition requirements: Power generation sites are rife with electromagnetic interference, power-frequency ripple, and switching noise. A differential input architecture is required to suppress common-mode interference and ensure stable, jitter-free sampling data under complex operating conditions.

GXSC ADC Features:

Dual-channel synchronous sampling with fully differential inputs

Pin-to-pin replacement for the ADS8354

16-bit Non-Missing Code (NMC) Differential Nonlinearity (DNL), ±2.5 LSBs, Maximum Integral Nonlinearity (INL)

93 dB Signal-to-Noise Ratio (SNR), -100 dB Total Harmonic Distortion (THD)

– 88 dB SNR, -95 dB THD

Dual, programmable, and buffered 2.5 V internal reference voltage

Fully rated for operation over an extended industrial temperature range of -40°C to 125°C

SPI interface, TSSOP16 package

The GXSC dual-channel 16-bit 2 MSPS analog-to-digital converter fully meets the application requirements of relay protectors.

The GXSC high-performance 16-bit dual-channel synchronous-sampling SAR analog-to-digital converter is specifically designed for high-reliability applications such as power protection, power quality monitoring, and three-phase power control. It features 16-bit lossless high precision, dual-channel synchronous sampling, 700 kSPS high-speed conversion, fully differential noise-immune inputs, an internal reference source, and wide-temperature high stability, enabling the lossless and precise simultaneous acquisition of power voltage and current signals.

1. Dual-channel synchronous sampling requirements: Power protection relies on the phase relationship between voltage and current to calculate power, impedance, and power factor. It is essential to ensure that voltage and current sampling occur at exactly the same time to eliminate false fault judgments and parameter inaccuracies caused by phase shifts.

2. Ultra-high-precision quantification requirements: Distribution systems experience gradual faults such as slight overloads, hidden harmonics, and minor voltage deviations. A high-resolution ADC is required to accurately capture minute signal changes, enabling precise fault identification and preventing the missed detection of minor faults.

4. Strong anti-interference acquisition requirements: Power generation sites are rife with electromagnetic interference, power-frequency ripple, and switching noise. A differential input architecture is required to suppress common-mode interference and ensure stable, jitter-free sampling data under complex operating conditions.

GXSC ADC Features:

Dual-channel synchronous sampling with fully differential inputs

Pin-to-pin replacement for the ADS8354

16-bit Non-Missing Code (NMC) Differential Nonlinearity (DNL), ±2.5 Least Significant Bit (LSB), Maximum Integral Nonlinearity (INL)

93 dB signal-to-noise ratio (SNR), -100 dB total harmonic distortion (THD)

– 88 dB SNR, -95 dB THD

Dual, programmable, and buffered 2.5 V internal reference voltage

Fully rated for operation over an extended industrial temperature range of -40°C to 125°C

SPI interface, TSSOP16 package