ADS7825P

Analog To Digital Converters (ADC) Overview

The ADS7825P is a four-channel, 16-bit sampling CMOS analog-to-digital converter (ADC) manufactured by Texas Instruments. It utilizes a successive approximation register (SAR) architecture to achieve a maximum sampling rate of 40 kS/s. The device operates with single-ended inputs and supports both parallel and serial interface configurations. It functions within an analog and digital supply voltage range of 4.75 V to 5.25 V, consuming 50 mW of power. Key performance metrics include a signal-to-noise ratio (SNR) of 83 dB, differential nonlinearity (DNL) of ±1 LSB, and integral nonlinearity (INL) of ±3 LSB. The component is housed in a SOIC-28 package and operates between -40°C and +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates over-voltage protection capabilities for input channels.
• Supports flexible data output through selectable parallel or serial communication interfaces.
• Offers configurable reference options utilizing either external or internal voltage references.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-resolution multi-channel acquisition.
• Data acquisition modules for precision measurement applications.
• Instrumentation equipment utilizing single-ended sensor inputs.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix designation against official datasheets to confirm pinout compatibility and electrical specifications. Ensure that the procurement source provides valid traceability documentation. Confirm RoHS compliance status matches project requirements before finalizing orders. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit components.

Analog To Digital Converters (ADC) Selection Notes

Select this component when designing systems requiring 16-bit resolution across four distinct input channels. Consider the SAR topology for moderate-speed applications up to 40 kS/s. Evaluate the SOIC-28 package constraints against available PCB real estate. Verify that the system power budget accommodates the specified 50 mW dissipation at the target operating temperature.

Analog To Digital Converters (ADC) Part Context

The ADS7825P belongs to the ADS7825 family of high-performance ADCs from Texas Instruments. This series is designed for applications demanding precise analog signal conversion. The 'P' suffix typically denotes a plastic small-outline integrated circuit (SOIC) package variant. It serves as a solution for multi-channel data acquisition where resolution outweighs the need for ultra-high speed.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS7825U is a verified alternative within the same product family, offering identical functional specifications. Both variants share the same core ADC architecture and electrical parameters. Selection between these parts should depend primarily on package availability and physical footprint requirements rather than performance differences.