LTC1273ACSW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1273ACSW#PBF is a 12-bit, 300ksps successive approximation analog-to-digital converter (ADC) housed in a 24-lead plastic SOIC Wide (SO-24) package. It operates from a single +5V supply and accepts unipolar analog input voltages ranging from 0V to 5V. The device integrates a precision 2.42V reference with 25ppm/°C drift, an internal synchronized clock, and a 600ns sample-and-hold circuit. Typical power dissipation is 75mW. Key performance metrics include ±1/2LSB maximum integral nonlinearity (INL), ±3/4LSB maximum differential nonlinearity (DNL), 70dB signal-to-noise plus distortion ratio, and 77dB total harmonic distortion at the Nyquist frequency.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 300ksps sampling rate and 2.7µs maximum conversion time
• Integrated 2.42V reference with 25ppm/°C temperature coefficient
• Internal synchronized clock eliminates external clock noise issues
• High impedance analog input with 600ns acquisition time

Analog To Digital Converters (ADC) Applications

• High-speed data acquisition systems
• Digital signal processing front-ends
• Multiplexed data acquisition channels
• Audio and telecom signal processing
• Spectrum analysis equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific AC grade suffix for ±1/2LSB INL specifications. Confirm the SW package variant matches the required PCB footprint. Ensure the #PBF designation aligns with lead-free manufacturing requirements for the target assembly process.

Analog To Digital Converters (ADC) Selection Notes

Select this component for single-supply 5V applications requiring unipolar 0V to 5V input ranges. Compare against LTC1275/LTC1276 if bipolar ±2.5V or ±5V inputs are necessary. Evaluate source impedance constraints against the 600ns acquisition time requirement to ensure adequate settling before conversion.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1273/LTC1275/LTC1276 family of 12-bit, 300ksps sampling ADCs. While the LTC1275 and LTC1276 support bipolar supplies and inputs, the LTC1273 is specifically configured for single-supply unipolar operation. All variants share identical architecture, pinouts, and dynamic performance characteristics.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.