ADC0820CCWM

Analog To Digital Converters (ADC) Overview

The ADC0820CCWM is an 8-bit high-speed analog-to-digital converter manufactured by Texas Instruments. It utilizes a half-flash conversion technique combining two 4-bit flash ADCs to achieve a maximum conversion time of 1.5 µs in WR-RD mode and 2.5 µs in RD mode. The device operates on a single 5 VDC supply, dissipating a maximum of 75 mW. Key specifications include a total unadjusted error of ±1 LSB for the CC grade, latched TRI-STATE digital outputs, and an integrated track-and-hold function suitable for input signals with slew rates below 100 mV/µs. It features a 20-pin SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• Built-in Track-and-Hold Function eliminating external sample-and-hold requirements
• No Missing Codes with Total Unadjusted Error of ±1 LSB (CC Grade)
• Latched TRI-STATE Digital Outputs for easy microprocessor interface
• Single 5 VDC Supply Operation with Low Power Dissipation (75 mW Max)

Analog To Digital Converters (ADC) Applications

• Telecommunications A/D Conversion
• Digital Waveform Recording
• Fast Infinite Sample-and-Hold Circuits
• Analog Multiplier Applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CCWM' corresponds to the Commercial temperature range (0°C to +70°C) and the 20-pin SOIC package. Confirm that the 'CC' grade indicates a total unadjusted error limit of ±1 LSB, distinct from the BC grade which offers ±½ LSB. Ensure the source document matches the SNAS529C revision date for accurate electrical parameter validation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-bit resolution with sub-microsecond conversion speed is required without external sampling hardware. The device supports both RD mode (pin 7 grounded) and WR-RD mode (pin 7 high). Note that the analog input voltage range is limited to 0V to VCC, and the reference voltage must be equal to or less than VCC. The output logic levels are compatible with both MOS and T2L standards.

Analog To Digital Converters (ADC) Part Context

The ADC0820-N series includes variants such as ADC0820BCN, ADC0820CCJ, and ADC0820CIWM. The ADC0820CCWM specifically denotes the commercial temperature range variant housed in a 20-pin Small Outline Integrated Circuit (SOIC) package. It shares the same internal architecture and functional pinout as other members of the ADC0820 family but differs in thermal operating limits and physical packaging dimensions.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not provided in the datasheet. Cross-model compatibility within the ADC0820 family depends on verifying temperature ranges and error grades (BC vs CC) rather than direct pin-for-pin functional equivalence across different manufacturers.