ADS8344NG4

Analog To Digital Converters (ADC) Overview

The ADS8344NG4 is a Texas Instruments 16-bit analog-to-digital converter (ADC) utilizing successive approximation register (SAR) architecture. It features an internal multiplexer supporting eight single-ended or four pseudo-differential input channels. The device operates with a sampling rate of 100 kS/s and communicates via a standard SPI-compatible serial interface. It requires external reference voltage and functions on dual supplies ranging from 2.7 V to 5.25 V for both analog and digital domains. Key performance metrics include a signal-to-noise and distortion ratio (SINAD) of 86 dB, differential nonlinearity (DNL) of ±2 LSB, and integral nonlinearity (INL) of 12 LSB. Power consumption is specified at 3.2 mW, with a maximum power dissipation of 10 mW.

Analog To Digital Converters (ADC) Feature Summary

• Integrated multiplexer enables flexible configuration of eight single-ended or four pseudo-differential analog inputs.
• Low-power SAR architecture supports operation across a wide supply voltage range suitable for battery-powered systems.
• Serial output interface simplifies connection to microcontrollers and digital signal processors.

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation
• Industrial process control systems
• Data acquisition modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's current datasheet to confirm RoHS compliance status and pinout compatibility. Ensure the SSOP-20 package dimensions match the target PCB footprint. Confirm that the required operating temperature range aligns with the commercial grade specifications (-40°C to +85°C). Validate that the external reference voltage requirements are met by the system design.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance of moderate speed and high resolution is required for multi-channel applications. The external reference requirement allows for optimization of noise performance using precision references. Consider the pseudo-differential input structure if common-mode noise rejection is needed without full differential signaling complexity. Verify that the 100 kS/s throughput meets the system bandwidth requirements.

Analog To Digital Converters (ADC) Part Context

The ADS8344 belongs to the ADS834x family of low-power, 16-bit ADCs from Texas Instruments. It shares architectural similarities with the ADS8343 and ADS8345 but distinguishes itself through its eight-channel multiplexed input capability. This model serves as a bridge between single-channel high-speed converters and lower-resolution multi-channel solutions, targeting applications requiring precise monitoring of multiple sensor signals.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS8345NB offers similar 16-bit resolution and 100 kS/s speed but supports true differential inputs instead of pseudo-differential. The ADS8343E provides comparable performance in a 16-pin package with fewer input channels. Verify pin compatibility and software register settings before substituting these alternatives.