LTC1273ACN#PBF

Analog To Digital Converters (ADC) Overview

The LTC1273ACN#PBF is a 12-bit, 300ksps sampling analog-to-digital converter (ADC) from Analog Devices. It operates on a single 5V supply and features an internal synchronized clock and a precision 2.42V reference with 25ppm/°C drift. The device accepts unipolar analog inputs ranging from 0V to 5V. Key performance metrics include a maximum conversion time of 2.7µs, typical power dissipation of 75mW, and AC characteristics of 70dB S/(N+D) and 77dB THD at the Nyquist frequency. It utilizes LTBiCMOS switched capacitor technology and provides a high-speed parallel interface for microprocessor integration.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 300ksps sampling rate
• Internal 2.42V reference with 25ppm/°C temperature coefficient
• Internally synchronized clock eliminating external clock noise issues
• Unipolar input range of 0V to 5V

Analog To Digital Converters (ADC) Applications

• High speed data acquisition systems
• Digital signal processing applications
• Multiplexed data acquisition systems
• Audio and telecom processing
• Spectrum analysis

Analog To Digital Converters (ADC) Procurement Notes

Verify that the component matches the specific A-grade accuracy specifications, including ±1/2LSB INL and ±3/4LSB DNL. Confirm the package type is the 24-lead narrow PDIP (N Package) as indicated by the CN suffix. Ensure the operating environment stays within the commercial temperature range of 0°C to 70°C for guaranteed performance parameters.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a single 5V supply and unipolar 0V to 5V input range are required. The LTC1273 is suitable for applications needing up to 300ksps throughput without external clocking circuitry. For bipolar input requirements, consider the LTC1275 or LTC1276 variants instead. Ensure the driving source can settle within the 600ns acquisition time for full DC accuracy.

Analog To Digital Converters (ADC) Part Context

The LTC1273 is part of the LTC1273/LTC1275/LTC1276 family of 12-bit, 300ksps sampling ADCs. While the LTC1273 handles unipolar inputs, the LTC1275 supports ±2.5V inputs and the LTC1276 supports ±5V inputs, both requiring dual supplies. All variants share the same architecture, pinout, and core performance characteristics, differing primarily in input voltage ranges and supply requirements.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: None.