LTC1278-4CSW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1278-4CSW#PBF is a 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices. It operates at a maximum sampling rate of 400ksps with a typical conversion time of 2.3μs and an acquisition time of 200ns. The device features a parallel interface, internal clock, and precision reference. It supports single 5V or ±5V supplies, consuming 75mW during operation and 8.5mW in shutdown mode. Key electrical specifications include ±1LSB INL/DNL, 70dB S/(N+D) at 100kHz input, and a full power bandwidth of 4MHz.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with no missing codes over temperature
• Internal synchronized clock eliminates external clock noise issues
• Low power consumption: 75mW active, 8.5mW shutdown
• Flexible parallel interface compatible with DSPs and microprocessors

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 -4 speed grade designation confirms the 400ksps maximum sampling frequency limit. Confirm the CSW suffix corresponds to the 24-lead SOIC package. Check RoHS compliance status via manufacturer documentation. Ensure supply voltage requirements match the unipolar or bipolar configuration needed for the specific application.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1278-4 variant specifically when a 400ksps throughput is sufficient, as opposed to the 500ksps LTC1278-5. Consider the internal 2.42V reference if external precision references are not required. Evaluate the parallel interface timing constraints against the host processor's capabilities. Verify that the 200ns acquisition time meets the settling requirements of the driving amplifier.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1278 family of 12-bit sampling ADCs. The -4 suffix denotes the commercial speed grade limited to 400ksps, distinct from the -5 grade which supports 500ksps. The SW package indicates a 24-lead plastic SOIC wide form factor. It shares architectural similarities with other SAR ADCs but integrates its own clock and reference for simplified system design.

Analog To Digital Converters (ADC) Replacement Considerations

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