ADS131E04 Replacement: GX131E04 Pin-Compatible 4-Channel 24-Bit ADC

GX131E04 is developed for industrial power monitoring, relay protection and precision data acquisition. Its high-impedance inputs can connect directly to resistor dividers, voltage transformers, current transformers and Rogowski coils.

The QFP-64 version supports direct replacement of ADS131E04 while retaining the existing schematic, PCB and processor software. A compact BGA-64 package is also available for new designs requiring a smaller system footprint.

GX131E04 as a Direct ADS131E04 Replacement

GX131E04 retains the four-channel, 24-bit simultaneous-sampling delta-sigma architecture used by ADS131E04. Each channel includes a flexible input multiplexer and programmable gain amplifier, supporting gains of 1, 2, 3, 4, 6, 8, 12 and 24.

Compatible pin definitions, analog inputs, power connections, reference and clock circuits, control signals and SPI interface enable direct migration from ADS131E04.

GX131E04 also supports four GPIO pins, synchronization control and daisy-chain operation, allowing existing MCU, DSP or FPGA acquisition architectures to be retained.

Pin-to-Pin Hardware and Software Compatibility

The 10 mm × 10 mm QFP-64 version of GX131E04 is designed for pin-to-pin hardware compatibility with ADS131E04. Existing input networks, supply circuits, reference connections and digital interfaces can be retained without redesigning the PCB.

Software and interface compatibility allow existing register configuration, synchronization control, SPI timing and data-readout programs to continue operating without modifying the processor interface.

GX131E04 is also available in an 8 mm × 8 mm BGA-64 package for compact new designs. Both package versions support operation from −40°C to +105°C.

GX131E04 vs ADS131E04: Key Specification Comparison

GX131E04 preserves the main channel architecture, sampling rate and interface functions of ADS131E04 while providing additional gain settings, a lower minimum data rate and improved dynamic performance.

Dynamic Performance and Fault Monitoring

At a 1 kSPS output data rate, GX131E04 provides a dynamic range of up to 120 dB. Crosstalk reaches −125 dB, while THD at 50 Hz and 60 Hz is −108 dB, supporting accurate measurement of voltage and current signals in power systems.

Each channel includes a flexible multiplexer that can select external inputs or internal signals for device testing, temperature monitoring and fault detection. Integrated comparators with DAC-programmable thresholds support input out-of-range monitoring.

Key GX131E04 features include:

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

l Output data rates from 250 SPS to 64 kSPS

l Programmable gains from 1 to 24

l Up to 120 dB dynamic range at 1 kSPS

l −125 dB crosstalk

l −108 dB THD at 50 Hz and 60 Hz

l High-impedance analog inputs

l Integrated reference and oscillator

l Programmable fault-detection thresholds

l Four GPIO pins

l Synchronization control

l SPI interface and daisy-chain operation

l −40°C to +105°C operating range

l QFP-64 and BGA-64 package options

Industrial Power and Measurement Applications

GX131E04 is suitable for:

l Circuit breakers and relay protection

l Single-phase and multiphase energy metering

l Power-quality monitoring

l Battery test systems

l Test and measurement equipment

l Simultaneous-sampling data acquisition

l Voltage and current monitoring

l Scalable industrial power systems

Request the GX131E04 Datasheet and Samples

GXSC provides GX131E04 samples, datasheets, compatibility verification and technical support for ADS131E04 replacement projects and new industrial data-acquisition designs.

Contact GXSC for samples, quotations, QFP-64 or BGA-64 package information and application support.