LTC1275ACSW#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1275ACSW#TRPBF is a 12-bit, 300ksps sampling analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from single 5V or ±5V supplies with typical power dissipation of 75mW. The device features an internal 2.42V reference with 25ppm/°C drift and an internally synchronized clock, eliminating external clock requirements. It accepts bipolar analog input ranges of ±2.5V. Key performance metrics include a maximum conversion time of 2.7µs, 70dB S/(N+D), and 77dB THD at the Nyquist frequency. The component is housed in a 24-lead SOIC Wide (SW) package.

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 for simplified interface
• Bipolar input range of ±2.5V with ±1/2LSB INL max

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 #TRPBF suffix indicates tape and reel packaging and lead-free compliance. Confirm the AC grade specifies commercial temperature operation from 0°C to 70°C. Ensure the SW package designation matches the required 24-lead SOIC Wide footprint for PCB layout compatibility.

Analog To Digital Converters (ADC) Selection Notes

Select this model for applications requiring bipolar ±2.5V input signals. The LTC1276 variant supports ±5V inputs, while the LTC1273 handles unipolar 0V to 5V ranges. All variants share identical pinouts and timing characteristics. Verify that the source impedance allows for the specified 600ns acquisition time to maintain accuracy.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1273/LTC1275/LTC1276 family of 12-bit, 300ksps sampling ADCs. The family utilizes LTBiCMOS switched capacitor technology. The primary distinction between members is the supported analog input voltage range: unipolar for LTC1273, bipolar ±2.5V for LTC1275, and bipolar ±5V for LTC1276.

Analog To Digital Converters (ADC) Replacement Considerations

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