LTC1275BCSW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1275BCSW#PBF is a high-speed, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices (formerly Linear Technology). It utilizes a successive approximation register (SAR) architecture to achieve a sampling rate of 400ksps. The device operates from a single +5V supply or dual ±5V supplies and features an internal clock generator. Key electrical specifications include a maximum input voltage range of 4.096V for unipolar operation or ±2.048V for bipolar operation. It is housed in a 24-lead wide SOIC package and is specified for the industrial temperature range of 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 400ksps sampling rate
• Single +5V or dual ±5V power supply operation
• Internal clock generator eliminates external timing components
• Parallel digital output interface

Analog To Digital Converters (ADC) Applications

• Data acquisition systems requiring moderate speed and resolution
• Industrial process control instrumentation
• Medical equipment signal conditioning
• Portable battery-powered instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the 'B' grade designation matches the required temperature range of 0°C to 70°C. Ensure the 24-lead SOIC footprint aligns with the PCB layout. Cross-reference the manufacturer part number with current Analog Devices documentation to confirm active status and availability.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance between speed and power consumption is needed for 12-bit applications. Compare against the LTC1274 if parallel interface is preferred over serial options. Consider the LTC1277 if lower power shutdown modes are required. Verify that the 400ksps throughput meets the system bandwidth requirements without excessive aliasing filtering needs.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC127x family of 12-bit ADCs, which also includes the LTC1274 and LTC1277. These devices share similar SAR architectures but differ in interface types and power management features. The LTC1275 specifically offers a parallel interface and internal clock, distinguishing it from serial variants in the same product line.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include the LTC1274 and LTC1277, provided interface differences are accommodated. External cross-manufacturer substitutes require verification of pinout, voltage levels, and sampling rates.