ADS1286U/2K5

Overview

The ADS1286U/2K5 is a 12-bit micro-power sampling analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a differential input with an integrated sample and hold amplifier, consuming only 250 μA of supply current at typical operating conditions. The device supports a maximum sampling rate of 20 kHz and utilizes an SPI and SSI compatible serial interface for communication over two or three wires. Packaged in an 8-lead SOIC, it operates within a specified temperature range of -40°C to +85°C.

Feature Summary

• 12-bit resolution with guaranteed no missing codes
• Low supply current consumption of 250 μA
• Maximum sampling rate of 20 kHz
• SPI and SSI compatible serial interface

Applications

• Remote data acquisition
• Isolated data acquisition
• Transducer interface
• Battery operated systems

Procurement Notes

Verify the package type matches the required 8-lead SOIC configuration. Confirm that the operational temperature range meets the system requirements of -40°C to +85°C. Ensure the power supply voltage stays within the specified limits of 4.5V to 5.25V. Check for any specific ordering suffixes that might indicate different performance grades or packaging quantities.

Selection Notes

Select this component when low power consumption is critical alongside moderate resolution requirements. The 12-bit resolution and 20 kHz sampling rate are suitable for many general-purpose data acquisition tasks. Consider the external reference voltage requirements and the need for isolation if using the serial interface in remote applications.

Part Context

The ADS1286U/2K5 belongs to the ADS1286 family of analog-to-digital converters from Texas Instruments. This family includes various packages and temperature grades, such as PDIP and other SOIC variants. The '/2K5' suffix typically indicates a reel packaging quantity of 2500 units.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.