LTC1296CCSW#PBF

ADCs/DACs - Special Purpose Overview

The LTC1296CCSW#PBF is a single-chip 12-bit data acquisition system manufactured by Analog Devices Inc. It integrates a successive approximation A/D converter, an analog multiplexer, and a sample-and-hold circuit using LTCMOS switched capacitor technology. The device supports eight differential or single-ended input channels and operates on a single +5V supply or ±5V supplies. It features a synchronous half-duplex serial interface compatible with most microprocessor ports, allowing data transmission over three to four wires. Key specifications include a maximum throughput rate of 46.5 kS/s, a conversion time of 12 µs, and a typical supply current of 6.0 mA. The component includes software-programmable features such as unipolar/bipolar conversion modes and power shutdown capabilities.

ADCs/DACs - Special Purpose Feature Summary

• 12-Bit Resolution: Provides high-precision analog-to-digital conversion with guaranteed no missing codes.
• 8-Channel Multiplexer: Configurable for single-ended or differential inputs with built-in sample-and-hold on all channels.
• Serial Interface: Direct connection to MPU serial/parallel ports via CS, CLK, DIN, and DOUT lines.
• System Shutdown Output (SSO): Dedicated pin that activates low during power-down states to control external circuitry.

ADCs/DACs - Special Purpose Applications

• Industrial process control systems requiring multi-channel data acquisition.
• Strain gauge bridge measurements and sensor signal conditioning.
• Portable battery-powered instrumentation due to low power consumption.
• Microprocessor-based data logging and monitoring systems.

ADCs/DACs - Special Purpose Procurement Notes

Verify the package type matches the design requirements; the CCSW suffix indicates a 16-lead plastic SO Wide package. Confirm the temperature grade 'C' corresponds to the commercial range of 0°C to 70°C. Ensure the '#PBF' suffix denotes lead-free and RoHS compliance status as per manufacturer standards. Cross-reference the specific lot date code if long-term availability is critical for production runs.

ADCs/DACs - Special Purpose Selection Notes

Select this model when eight channels are required, distinguishing it from the LTC1293 (6-channel) and LTC1294 (6-channel). Choose the CC variant for commercial temperature applications rather than the BI/CI/DI variants for industrial ranges. Verify that the 46.5 kS/s sampling rate meets the application bandwidth needs. Ensure the serial interface timing parameters align with the host microprocessor's clock speeds and setup times.

ADCs/DACs - Special Purpose Part Context

This component belongs to the LTC1293/LTC1294/LTC1296 family of single-chip 12-bit data acquisition systems. The LTC1296 specifically adds the System Shutdown Output (SSO) feature compared to the LTC1293 and LTC1294. It utilizes LTCMOS technology for low power and high speed. The device serves as a complete solution for integrating ADC functionality into embedded systems without external discrete components.

ADCs/DACs - Special Purpose Replacement Considerations

For direct functional replacement within the same package, consider the LTC1296BCSW#PBF or LTC1296DCSW#PBF depending on the required operating temperature range. The LTC1294CCSW#PBF offers similar performance but lacks the SSO pin and has only six channels. Verify pin compatibility and electrical specifications before substituting.