ADS7842EB/1K

Analog To Digital Converters (ADC) Overview

The ADS7842EB/1K is a 12-bit, 4-channel analog-to-digital converter (ADC) from Texas Instruments, utilizing successive approximation register (SAR) architecture. It features parallel output and single-ended inputs with a sampling rate of 200 kS/s. The device operates on a single supply voltage ranging from 2.7 V to 5.25 V for both analog and digital domains. Key performance metrics include a signal-to-noise ratio (SNR) of 72 dB, differential nonlinearity (DNL) of ±0.8 LSB, and integral nonlinearity (INL) of ±2 LSB. Power consumption is specified at 1.8 mW typical, with maximum power dissipation of 4.5 mW. It is housed in an SSOP-28 package and functions within a temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 4-channel multiplexer with a sample-and-hold amplifier for efficient multi-point data acquisition.
• Provides high-speed parallel data output compatible with standard microprocessor interfaces.
• Supports low-power operation suitable for battery-supplied portable instrumentation systems.

Analog To Digital Converters (ADC) Applications

• Portable multichannel data loggers
• Industrial process control monitoring
• Medical instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'EB/1K' against the manufacturer's current datasheet to confirm pinout compatibility and packaging details. Confirm RoHS compliance status as indicated in official documentation. Check for obsolescence notices or lifecycle changes directly from Texas Instruments before finalizing procurement plans.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution and 200 kS/s throughput are required for single-ended signals. Ensure the design accommodates an external reference voltage, as the device does not include an internal reference. Verify that the host system supports parallel interface timing requirements for the SSOP-28 package.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS7842 family of 12-bit ADCs. The 'E' suffix typically denotes the extended industrial temperature range (-40°C to +85°C). The '/1K' suffix indicates reel packaging containing 1000 units. It serves as a parallel-output alternative to serial variants like the ADS7841.

Analog To Digital Converters (ADC) Replacement Considerations

ADS7842E/1K: Direct functional equivalent with identical specifications and pinout. ADS7841EB/1K: Serial interface variant requiring software adaptation. ADS7842EB: Tube-packaged version of the same die and functionality.