ADC0802LCWMX/NOPB

Analog To Digital Converters (ADC) Overview

The ADC0802LCWMX/NOPB is an 8-bit successive approximation analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a differential potentiometric ladder architecture and operates on a single 5-V supply with a voltage range of 4.5 V to 6.3 V. The device provides tri-state output latches for direct microprocessor interfacing without additional logic. Key electrical specifications include a conversion time of 100 µs, a clock frequency range of 100 kHz to 640 kHz, and a typical total unadjusted error of ±1/2 LSB. It is housed in a 20-pin Small Outline Integrated Circuit (SOIC) package.

Analog To Digital Converters (ADC) Feature Summary

• 8-bit resolution with SAR architecture
• Differential analog voltage inputs for improved common-mode rejection
• Tri-state data outputs compatible with standard TTL/MOS levels
• On-chip clock generator requiring only external RC components

Analog To Digital Converters (ADC) Applications

• Interface to temperature sensors and transducers
• Voltage source monitoring systems
• General-purpose 8-bit microprocessor data acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the 'X' suffix indicates reel packaging rather than tube packaging when sourcing this specific part number variant. Confirm RoHS compliance status as indicated by the NOPB designation. Ensure the operating temperature range meets system requirements, as the LC suffix specifies commercial grade operation from 0°C to 70°C.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC0802 over other family members if differential input capability is required, as opposed to the single-ended ADC0801 or ADC0804. Verify that the 100 µs conversion time satisfies the application's sampling rate needs. Ensure the power supply remains within the 4.5 V to 6.3 V range to maintain specified accuracy and prevent diode conduction errors at the analog inputs.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC080x series of 8-bit, µP-compatible analog-to-digital converters. The series includes variants such as the ADC0801, ADC0803, and ADC0804, which share similar pinouts and control logic but differ in input configuration and accuracy specifications. The ADC0802 specifically offers differential inputs and ±1/2 LSB total unadjusted error.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include the ADC0801, ADC0803, and ADC0804, provided their specific accuracy and input type requirements match the design. Non-family equivalents require careful evaluation of interface logic and timing constraints.