ADC0802LCN

Analog To Digital Converters (ADC) Overview

The ADC0802LCN 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 +5V supply with an input voltage range of 0V to 5V. The device includes an on-chip clock generator, tri-state output latches, and requires no external interfacing logic for microprocessor compatibility. Key electrical specifications include a conversion time of 100 µs at a 640 kHz clock frequency, a total unadjusted error of ±1/2 LSB, and a recommended operating temperature range of -40°C to 85°C.

Analog To Digital Converters (ADC) Feature Summary

• 8-Bit Resolution with Differential Analog Inputs
• Microprocessor Compatible with Tri-State Outputs
• On-Chip Clock Generator
• No Zero Adjust Required

Analog To Digital Converters (ADC) Applications

• Interface to Temperature Sensors
• Voltage Source Monitoring
• Transducer Signal Acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'LCN' corresponds to the 20-pin PDIP package and the -40°C to 85°C industrial temperature grade when sourcing. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the ordering information matches the exact part number to avoid confusion with other variants in the ADC080x family.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC0802LCN for applications requiring differential inputs to improve common-mode rejection and allow offsetting the analog zero point. This model provides a total unadjusted error of ±1/2 LSB, suitable for general-purpose data acquisition where high precision is not critical. Consider the ADC0801 variant if ±1/4 LSB accuracy is required instead.

Analog To Digital Converters (ADC) Part Context

The ADC0802LCN belongs to the ADC080x series of CMOS 8-bit A/D converters. These devices are designed to interface directly with standard microprocessor buses without additional logic. The LCN designation specifically identifies the plastic dual-in-line package variant within this product line.

Analog To Digital Converters (ADC) Replacement Considerations

The ADC0801 offers higher accuracy (±1/4 LSB) but lacks differential inputs. The ADC0803 provides adjusted accuracy (±1/2 LSB) with single-ended inputs. The ADC0804 allows for ratiometric operation with different internal reference resistor values.