LTC1274ISW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1274ISW#PBF is a 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 5V supply or ±5V supplies, consuming 10mW at a sampling rate of 100ksps. The device features a single-ended input, parallel data interface, and an internal 2.42V reference. Key performance metrics include a signal-to-noise plus distortion ratio of 72.5 dB at 100kHz input frequency and a full power bandwidth of 2 MHz. It supports unipolar (0V to 4.096V) and bipolar (±2.048V) input ranges with integral and differential linearity errors of ±1 LSB.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 100ksps sampling rate and 10mW power dissipation
• Single-ended input architecture with parallel digital output interface
• Internal synchronized clock and precision 2.42V reference
• Power shutdown capability drawing 1µA in Sleep mode

Analog To Digital Converters (ADC) Applications

• Battery-powered portable systems
• High-speed data acquisition for PCs
• Multiplexed data acquisition systems
• Audio and telecom processing
• Spectrum analysis

Analog To Digital Converters (ADC) Procurement Notes

Verify the industrial temperature grade suffix 'I' (-40°C to +85°C) against application requirements. Confirm RoHS compliance status via official documentation. Ensure the SOIC-24 package dimensions match the PCB footprint design. Check for end-of-life notifications as this component series may have legacy status.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1274 over the LTC1277 when a single-ended input and 12-bit parallel word format are required. The LTC1277 offers differential inputs and a two-byte read format but lacks the specific interface configuration of the LTC1274. Consider the 2µs acquisition time and source impedance requirements for signal driving capabilities.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1274/LTC1277 family of low-power, high-speed ADCs. The ISW suffix indicates the Industrial temperature range and SOIC Wide package. It is part of Analog Devices' portfolio of general-purpose SAR converters designed for flexibility in unipolar and bipolar operation modes.

Analog To Digital Converters (ADC) Replacement Considerations

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