ADS7841E/2K5

Analog To Digital Converters (ADC) Overview

The ADS7841E/2K5 is a 12-bit, 4-channel sampling Analog-to-Digital Converter (ADC) manufactured by Texas Instruments. It features a Successive Approximation Register (SAR) architecture with an integrated four-channel multiplexer and serial interface. The device operates on a single supply voltage ranging from 2.7V to 5.25V. Key electrical specifications include a maximum throughput rate of 200kHz at 5V operation, ±2 LSB maximum Integral Nonlinearity (INL), and ±0.8 LSB maximum Differential Nonlinearity (DNL). It supports both single-ended and differential input configurations. The component is housed in a 16-lead SSOP package and is specified for industrial temperature ranges from -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated four-channel analog multiplexer supporting configurable single-ended or differential input modes.
• Low power consumption with dedicated shutdown mode reducing dissipation below 15µW.
• Flexible serial interface compatible with standard SPI protocols for data transfer.
• Programmable resolution allowing selection between 8-bit and 12-bit conversion depths.

Analog To Digital Converters (ADC) Applications

• Battery-powered portable measurement equipment
• Industrial process control systems
• Personal digital assistants and handheld devices

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix '/2K5' confirms the tape and reel packaging format containing 2500 units per reel. Ensure the 'E' grade designation matches the required -40°C to +85°C operating temperature range rather than the extended temperature variants. Confirm RoHS compliance status through official manufacturer documentation prior to final procurement decisions.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a low-cost, single-supply ADC with moderate speed requirements is needed. The ADS7841E/2K5 is suitable for applications where power efficiency is critical but high-speed data acquisition is not mandatory. Consider the external reference voltage requirements and available serial interface compatibility with the host microcontroller before implementation.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7841 family of 12-bit SAR ADCs. The 'E' suffix denotes the commercial/industrial temperature grade (-40°C to +85°C), while the '/2K5' indicates the specific tape and reel packaging quantity. It serves as a cost-effective alternative to higher-performance models like the ADS7846, lacking the touch screen controller integration found in that series.

Analog To Digital Converters (ADC) Replacement Considerations

The datasheet identifies the MAX1247 as an alternate source for functional equivalence. Designers should verify pinout compatibility and electrical parameter matching when substituting this component with other industry-standard 12-bit SAR ADCs.