ADADC80-12

Analog To Digital Converters (ADC) Overview

The ADADC80-12 is a complete 12-bit successive-approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features a hybrid IC design integrating MSI digital and linear monolithic chips with a 12-bit monolithic DAC. The device includes an internal clock, reference, and comparator, requiring no external components for conversion. Key specifications include a maximum linearity error of ±0.012%, a gain temperature coefficient of ±30 ppm/°C, and a typical power dissipation of 800 mW. The maximum conversion time is 25 μs using the internal clock. It supports bipolar ranges of ±2.5 V, ±5 V, or ±10 V, and unipolar ranges of 0 to +5 V or 0 to +10 V. Digital outputs are parallel and TTL compatible.

Analog To Digital Converters (ADC) Feature Summary

• Monolithic 12-bit feedback DAC integrated for reduced chip count and high reliability
• Internal buried Zener reference laser trimmed to 6.3 V with external availability
• Scaling resistors included on the monolithic DAC for exceptional thermal tracking
• Short-cycle capability allows termination of conversion cycles for lower resolution requirements

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring high throughput rates
• Industrial control applications needing precise analog signal digitization
• Test and measurement equipment utilizing fast conversion speeds
• Modular instrumentation designs prioritizing reliability and low component count

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix when sourcing this component. The standard ADADC80-12 operates with ±15 V supplies. Models designated with a "Z" suffix, such as ADADC80-Z-12, are configured for ±12 V supplies. Confirm that the required supply voltage matches the ordered variant to ensure proper operation within rated accuracy specifications.

Analog To Digital Converters (ADC) Selection Notes

Select the ADADC80-12 for applications demanding true 12-bit resolution with minimal external circuitry. Ensure the system provides ±15 V analog supplies and +5 V digital logic power. Consider the short-cycle feature if reduced resolution accelerates throughput. Verify input scaling connections match the desired bipolar or unipolar range to utilize the full dynamic range effectively.

Analog To Digital Converters (ADC) Part Context

The ADADC80 series represents a hybrid integrated circuit solution from Analog Devices, combining discrete performance with IC reliability. It serves as a direct replacement for older general-purpose ADCs while offering improved linearity and speed. The device is housed in a 32-lead side-brazed ceramic DIP package, suitable for high-reliability environments where robust packaging is required.

Analog To Digital Converters (ADC) Replacement Considerations

The datasheet indicates the ADADC80 directly replaces other devices of this type with significant performance increases. Specific substitute part numbers are not listed in the provided documentation.