ADS7841ES/2K5

Analog To Digital Converters (ADC) Overview

The ADS7841ES/2K5 is a 12-bit, 4-channel sampling Analog-to-Digital Converter (ADC) with a synchronous serial interface. It operates on a single supply ranging from 2.7V to 5V and supports up to 200kHz conversion rates. The device features ±1LSB maximum Integral Nonlinearity (INL) and Differential Nonlinearity (DNL), ensuring no missing codes. It offers a Signal-to-(Noise + Distortion) ratio of 72dB. The ES grade variant is specified for an extended operating temperature range of –40°C to +125°C. It includes a shutdown mode reducing power dissipation to under 15µW.

Analog To Digital Converters (ADC) Feature Summary

• Integrated four-channel multiplexer supporting both single-ended and differential input configurations.
• Synchronous serial interface compatible with standard SPI protocols for microcontroller connectivity.
• Extended industrial temperature rating (-40°C to +125°C) provided by the ES grade specification.
• Programmable resolution allowing selection between 8-bit and 12-bit conversion modes.

Analog To Digital Converters (ADC) Applications

• Battery-operated personal digital assistants
• Portable multi-channel data loggers
• Industrial process control systems
• Test and measurement equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify that the specific order number corresponds to the ES grade variant, which denotes the extended temperature range capability up to +125°C. Confirm the '/2K5' suffix indicates tape and reel packaging containing 2500 devices per reel. Ensure compatibility with the required voltage levels and clock speeds for the target application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high accuracy over a wide temperature range is required for battery-powered applications. The ES grade is necessary if the operating environment exceeds +85°C. Consider the 200kHz throughput rate and serial interface requirements when designing the system architecture. Verify that the external reference voltage range aligns with the 100mV to VCC specification.

Analog To Digital Converters (ADC) Part Context

This part belongs to the Texas Instruments ADS7841 series of low-power, high-speed ADCs. The ES designation specifically identifies the version qualified for extended industrial temperatures compared to the standard E or P grades. The /2K5 suffix denotes the specific tape and reel packaging format used for automated assembly processes.

Analog To Digital Converters (ADC) Replacement Considerations

The datasheet lists the MAX1247 as an alternate source for this device. Engineers should verify pin compatibility and electrical specifications before substituting components. Other members of the ADS7841 family may offer different temperature ranges or packaging options but require validation of functional equivalence.