LTC1275ACSW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1275ACSW#PBF is a 12-bit, 300ksps sampling analog-to-digital converter (ADC) from Analog Devices. It operates on 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. It accepts bipolar analog inputs in the range of ±2.5V. 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 Nyquist frequency. It utilizes LTBiCMOS switched capacitor technology.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 300ksps sampling rate
• Internal 2.42V reference with 25ppm/°C temperature coefficient
• Bipolar input range of ±2.5V for ±5V supply operation
• Internally synchronized clock eliminating external clock requirements

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 the specific ordering suffix #PBF indicates lead-free compliance. Confirm the SW package designation corresponds to the 24-lead plastic SO wide form factor. Ensure the AC grade specification meets the required commercial temperature range of 0°C to 70°C for the intended application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a bipolar input range of ±2.5V is required with a 12-bit resolution. The LTC1275 differs from the LTC1273 (unipolar 0V to 5V) and LTC1276 (bipolar ±5V). Ensure the system design accommodates the ±5V supply requirement for the A-grade version operating within the commercial temperature range.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1273/LTC1275/LTC1276 family of 12-bit, 300ksps sampling ADCs. The LTC1275 specifically targets applications requiring a ±2.5V input span, distinguishing it from the unipolar LTC1273 and the wider-range bipolar LTC1276. All variants share identical architecture, clocking, and interface characteristics.

Analog To Digital Converters (ADC) Replacement Considerations

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