HI7191IPZ

Analog To Digital Converters (ADC) Overview

The HI7191IPZ is a 24-bit high-precision Sigma-Delta Analog-to-Digital Converter (ADC) manufactured by Renesas Electronics Corporation. It features a single analog input channel with a maximum analog input voltage of 5 V and a minimum of -5 V. The device operates within a temperature range of -40°C to 85°C. Key electrical specifications include a maximum linear error of 0.003%. It is available in PDIP20 and SOIC20 packages, containing 20 terminals. The component is RoHS compliant and classified under ECCN code EAR99.

Analog To Digital Converters (ADC) Feature Summary

• High-resolution 24-bit data conversion capability using Sigma-Delta modulation architecture for enhanced precision.
• Wide dual-polar power supply support accommodating analog input voltages from -5 V to +5 V.
• Industrial-grade operational reliability defined by a specified temperature range of -40°C to 85°C.

Analog To Digital Converters (ADC) Applications

• Precision industrial measurement systems requiring high-resolution signal acquisition.
• Scientific instrumentation demanding low noise and high linearity performance.
• Calibration equipment utilizing stable reference voltage inputs.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific package variant, either PDIP or SOIC, as both are listed for this part number. Confirm that the operating environment remains within the -40°C to 85°C thermal limits. Ensure the analog input signals do not exceed the absolute maximum ratings of ±5 V to prevent device damage. Check for RoHS compliance documentation if required for regulatory adherence in your region.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 24-bit resolution is necessary for applications involving small differential signals. The Sigma-Delta architecture is suitable for low-frequency, high-accuracy measurements where speed is secondary to precision. Consider the 20-pin package constraints and ensure sufficient board space for the DIP or SOIC form factor. Verify that the system can provide the required dual power supplies for the ±5 V input range.

Analog To Digital Converters (ADC) Part Context

This component belongs to the Renesas analog mixed-signal IC portfolio, specifically within the converter category. Originally associated with Intersil before its integration into Renesas, it serves as a specialized solution for high-precision data acquisition tasks. The HI7191 series represents a dedicated implementation of Sigma-Delta technology for professional and industrial use cases.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate other 24-bit Sigma-Delta ADCs from the manufacturer's current lineup for potential upgrades, ensuring pin compatibility and parameter alignment.