ADS131E08 Replacement: GX131E08 Pin-to-Pin 8-Channel 24-Bit ADC

GX131E08 is developed for industrial power monitoring and protection, test and measurement, and simultaneous-sampling data acquisition systems.

Its eight high-impedance input channels can interface with resistor-divider networks or voltage transformers for line-voltage measurement and with current transformers or Rogowski coils for current measurement.

The QFP64 version is designed for pin-to-pin hardware replacement of ADS131E08, allowing the existing QFP64 PCB footprint and pin routing to be retained. An optional BGA64 package is available for new designs requiring a smaller board footprint.

GX131E08 as a Pin-to-Pin ADS131E08 Replacement

GX131E08 integrates eight simultaneous-sampling 24-bit delta-sigma ADC channels with programmable gain amplifiers, an internal voltage reference and an onboard oscillator.

The device supports output data rates from 250 SPS to 64 kSPS and programmable gains of 1, 2, 3, 4, 6, 8, 12 and 24. Its additional low-data-rate and gain settings provide greater flexibility for signals with different amplitudes and bandwidth requirements.

For existing ADS131E08-based equipment, the GX131E08 QFP64 package provides a pin-to-pin hardware migration path without redesigning the PCB footprint. GX131E08 is also suitable for new high-channel-count measurement and protection systems.

Pin-to-Pin QFP64 Hardware Compatibility and SPI Interface

The GX131E08 QFP64 version is designed around the ADS131E08 pin configuration. Existing analog-input connections, power connections, reference circuitry, clock and synchronization signals, GPIO connections and SPI signal routing can be retained.

The SPI interface supports communication with MCUs, DSPs and FPGAs. Four GPIO pins, synchronization control and daisy-chain operation simplify the implementation of multi-device systems requiring additional measurement channels.

The 8 mm × 8 mm BGA64 package provides the same eight-channel conversion architecture in a smaller package for space-constrained new designs.

GX131E08 vs ADS131E08: Key Specification Comparison

GX131E08 retains the principal channel count, resolution, maximum data rate, supply ranges and system-control functions of ADS131E08 while providing additional gain settings, a 250 SPS operating mode and improved specified dynamic performance.

Measurement, Monitoring and System Features

Key GX131E08 features include:

l Eight simultaneous-sampling 24-bit delta-sigma ADC channels

l Output data rates from 250 SPS to 64 kSPS

l Programmable gains of 1, 2, 3, 4, 6, 8, 12 and 24

l Dynamic range up to 120 dB at 1 kSPS

l −125 dB crosstalk

l −108 dB THD at 50 Hz and 60 Hz

l High-impedance analog inputs

l Flexible input multiplexer on each channel

l Internal test and temperature-monitoring signals

l Integrated comparators with DAC-programmable thresholds

l Input out-of-range and fault detection

l Integrated voltage reference and onboard oscillator

l SPI data interface

l Four GPIO pins

l Synchronization and daisy-chain operation

l QFP64 and compact BGA64 package options

l −40°C to +105°C operating-temperature range

GX131E08 Applications

GX131E08 is suitable for:

l Circuit-breaker and relay-protection equipment

l Single-phase and multiphase energy metering

l Power-quality monitoring systems

l Line-voltage and line-current measurement

l Battery test systems

l Industrial test and measurement equipment

l Simultaneous-sampling data acquisition systems

l High-channel-count monitoring and protection equipment

Request the GX131E08 Datasheet, Samples and Technical Support

GXSC can provide the GX131E08 datasheet, QFP64 pinout information, samples, quotation and technical support for ADS131E08 replacement projects and new multichannel data acquisition designs.

Contact GXSC with your ADS131E08 ordering code, package requirement, power-supply configuration, sampling rate and application information to obtain product-selection and replacement support.