LTC1276ACSW#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1276ACSW#TRPBF is a single-channel, 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates with a maximum sampling rate of 300ksps and draws 75mW from dual ±5V supplies. The device features an internal 2.42V reference with 25ppm/°C drift and accepts bipolar analog inputs ranging from -5V to +5V. It utilizes a high-impedance analog input and provides a parallel digital interface. Key performance metrics include 70dB S/(N+D) and 77dB THD at the Nyquist frequency.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 300ksps sampling rate
• Internal synchronized clock eliminates external clock noise
• Bipolar input range of ±5V with on-chip 2.42V reference
• ±1/2LSB INL and ±3/4LSB DNL maximum linearity errors

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging and lead-free compliance. Confirm the AC grade corresponds to the commercial temperature range of 0°C to 70°C. Ensure the SW package designation matches the required 24-pin SOIC wide footprint for the target PCB layout.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a bipolar ±5V input range is required without external scaling circuitry. The internal clock simplifies design by removing asynchronous clock jitter issues found in competitive devices. Consider the 600ns acquisition time when determining source impedance limits for optimal settling before conversion.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1273/LTC1275/LTC1276 family of 12-bit, 300ksps ADCs. The LTC1276 variant is specifically configured for bipolar ±5V operation using dual supplies, whereas the LTC1273 handles unipolar 0V to 5V inputs and the LTC1275 handles ±2.5V inputs. All share identical pinouts and control logic.

Analog To Digital Converters (ADC) Replacement Considerations

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