ADC0820BCV

Analog To Digital Converters (ADC) Overview

The ADC0820BCV is an 8-bit high-speed analog-to-digital converter manufactured by Texas Instruments. It utilizes a half-flash conversion technique 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 with a power dissipation of 75 mW max. It features a built-in track-and-hold function, eliminating the need for external sampling circuits for signals with slew rates below 100 mV/µs. The ADC0820BCV provides latched tri-state outputs compatible with both MOS and TTL logic levels and supports ratiometric operation or external reference voltages up to VCC.

Analog To Digital Converters (ADC) Feature Summary

• Built-in track-and-hold function eliminates external sample-and-hold requirements for signals under 100 mV/µs.
• No external clocking required; interfaces directly with microprocessors via standard control lines.
• Latched tri-state digital outputs ensure easy bus interfacing without additional logic.
• Operates ratiometrically or with any reference value equal to or less than VCC.

Analog To Digital Converters (ADC) Applications

• Microprocessor-based monitoring and control systems
• Transducer to microprocessor interface
• Process control applications
• Logic analyzers and test/measurement equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify that the specific ordering suffix corresponds to the SOIC-20 package variant. Confirm the commercial temperature range (0°C to +70°C) aligns with system environmental requirements. Ensure the design accounts for the 4.5V to 8V supply voltage range and appropriate reference voltage configuration for the desired input span.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-bit resolution with sub-microsecond conversion speed is required without external clocking. It is suitable for applications where the analog input signal slew rate remains below 100 mV/µs, leveraging the internal track-and-hold capability. Consider the ±1 LSB total unadjusted error limit for accuracy requirements.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADC0820-N family of 8-bit high-speed A/D converters. The 'BC' designation indicates the commercial temperature grade (0°C to +70°C), while 'CV' specifies the 20-pin SOIC surface-mount package. Other variants include the CC series for extended temperature ranges and CN/CDIP packages for through-hole mounting.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include ADC0820CCV (extended temperature) and ADC0820BCWM (SOIC-20 wide body). Cross-manufacturer equivalents such as the AD7820 or MAX196 may offer similar functionality but require verification of timing parameters and pinout compatibility.