ADS1286P

Overview

The ADS1286P is a 12-bit micro-power sampling analog-to-digital converter (ADC) manufactured by Texas Instruments. It utilizes a successive approximation register (SAR) architecture and features a single differential input channel. The device operates with analog and digital supply voltages ranging from 4.5 V to 5.25 V, consuming approximately 1.25 mW of power. It supports data rates up to 20 kS/s and communicates via SPI, I2C, or 3-wire interfaces. Key performance metrics include a signal-to-noise and distortion ratio (SINAD) of 72 dB, integral nonlinearity (INL) of ±2 LSB, and differential nonlinearity (DNL) of ±0.75 LSB. It is housed in an 8-SOIC package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Micro-power consumption suitable for battery-operated applications
• Flexible digital interface compatibility with standard communication protocols
• High linearity performance with low integral and differential nonlinearity errors

Applications

• Portable medical instrumentation requiring low power and high accuracy
• Industrial process control systems utilizing differential signal inputs
• Data acquisition modules for sensor interfacing

Procurement Notes

Verify the specific suffix designation against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure the component meets RoHS compliance requirements if mandated by the target application. Cross-reference the ordering part number with the manufacturer's current datasheet to validate availability and manufacturing status before procurement.

Selection Notes

Select this component when a 12-bit resolution is sufficient for the application's dynamic range requirements. Consider the SAR architecture for moderate speed needs up to 20 kS/s. Verify that the external reference voltage matches the required input span. Confirm that the system design accommodates the 8-SOIC package dimensions and thermal characteristics.

Part Context

The ADS1286P belongs to the ADS1286 family of micro-power sampling ADCs. This series is designed for applications demanding low power consumption without sacrificing conversion accuracy. The P suffix typically denotes a specific package variant within the broader product line, sharing core electrical characteristics with other ADS1286 derivatives.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Texas Instruments documentation for potential pin-compatible alternatives or functional equivalents within the same product family.