ADS131E04IPAGR

Analog Front End (AFE) Overview

The ADS131E04IPAGR is a four-channel, simultaneously sampling, 24-bit Delta-Sigma analog-to-digital converter (ADC) from Texas Instruments. Designed as an energy metering front-end, it integrates programmable gain amplifiers (PGA), an internal reference voltage source, and an on-board oscillator. The device supports data rates up to 64 kSPS and features a serial peripheral interface (SPI). It operates within a supply voltage range of 3 V to 5 V for analog circuits and 1.8 V to 3.6 V for digital logic. Packaged in a 64-pin TQFP with the 'RGR' suffix indicating tape-and-reel delivery, it functions across an industrial temperature range of -40°C to +105°C.

Analog Front End (AFE) Feature Summary

• Four-channel simultaneous sampling with 24-bit resolution and dynamic range of 118 dB at 1 kSPS
• Integrated PGA with gains of 1, 2, 4, 8, and 12, plus internal reference and oscillator
• Flexible input multiplexer allowing independent channel connection to internal test signals or fault detection comparators
• Low power consumption of approximately 2 mW per channel

Analog Front End (AFE) Applications

• Industrial power monitoring and protection systems
• Energy metering applications including single-phase and polyphase meters
• Battery testing systems requiring high-precision current and voltage measurement
• Industrial test and measurement equipment

Analog Front End (AFE) Procurement Notes

Verify the 'RGR' suffix confirms the tape-and-reel packaging format required for automated surface-mount assembly. Confirm the specific grade matches the -40°C to +105°C operating range. Ensure the order quantity aligns with standard reel sizes to avoid partial reel handling issues during production integration.

Analog Front End (AFE) Selection Notes

Select this component when four synchronized channels are required for polyphase power analysis. The integrated PGA eliminates external amplifier requirements for direct sensor interfacing. Consider the 64 kSPS maximum rate against system bandwidth needs. Verify SPI compatibility with the host microcontroller for register configuration and data retrieval.

Analog Front End (AFE) Part Context

This part belongs to the ADS131E0x family, which includes ADS131E06 and ADS131E08 variants offering six and eight channels respectively. All share identical core architecture, pinouts, and software compatibility. The IPAG package designation indicates a 64-lead Thin Quad Flatpack with a 10.2 mm x 10.2 mm footprint and 0.5 mm pitch.

Analog Front End (AFE) Replacement Considerations

ADS131E04IPAG serves as the tray-packaged equivalent with identical electrical specifications. ADS131E06IPAGR and ADS131E08IPAGR provide higher channel counts within the same package and software ecosystem.