LTC1290CCN#PBF

Analog To Digital Converters (ADC) Overview

The LTC1290CCN#PBF is a single-chip 12-bit data acquisition system manufactured by Analog Devices Inc. It integrates an 8-channel analog multiplexer, a sample-and-hold circuit, and a successive approximation A/D converter. The device supports both unipolar and bipolar conversions with a maximum throughput rate of 50kHz. It operates on a single +5V supply or dual ±5V supplies, drawing 6.0mA. The component features a synchronous full-duplex serial interface compatible with industry standards, allowing direct connection to microprocessors. It is housed in a 20-lead PDIP package and is rated for commercial operating temperatures from 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 8 input channels configurable for single-ended or differential modes
• Built-in sample-and-hold amplifier for all single-ended inputs
• Software programmable for unipolar/bipolar conversion, MSB/LSB first output, and variable word lengths (8, 12, or 16 bits)
• Power shutdown mode accessible via serial command to reduce current consumption

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition
• Data logging equipment with moderate speed requirements
• Microprocessor-based measurement systems interfacing via SPI or Microwire protocols

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific temperature grade suffix 'C' corresponds to the 0°C to 70°C commercial range required for the application. Confirm the '#PBF' suffix indicates lead-free compliance and RoHS status. Ensure the 20-lead PDIP package format matches the PCB footprint design constraints.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 12-bit accuracy and 50kHz sampling are sufficient for the target signals. Consider the LTC1290DISW#TRPBF if surface mount packaging is preferred over through-hole DIP. Verify that the source impedance of the analog inputs allows for proper acquisition time within the specified cycle time constraints.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1290 family of single-chip data acquisition systems. It shares functional similarities with the LTC1291, which offers fewer channels, and the LTC1293, which provides higher channel counts. The CCN variant specifically denotes the commercial temperature grade and plastic DIP packaging.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC1290CISW#TRPBF is a parameter-equivalent alternative offering the same electrical specifications but in a surface-mount SOIC package with an extended industrial temperature range (-40°C to 85°C).