LTC1296CISW#PBF

ADCs/DACs - Special Purpose Overview

The LTC1296CISW#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 input channels configurable for single-ended or differential inputs. It operates on a single +5V supply or ±5V supplies with a maximum throughput rate of 46.5ksps. Key features include software-programmable unipolar/bipolar conversion, power shutdown capability, and a System Shutdown Output (SSO) pin for controlling external circuitry.

ADCs/DACs - Special Purpose Feature Summary

• 12-bit resolution with 8-channel analog multiplexer supporting single-ended and differential configurations
• Built-in sample-and-hold circuit for all single-ended input channels
• Software programmable for unipolar/bipolar modes, MSB/LSB data sequence, and power shutdown
• System Shutdown Output (SSO) pin to control external signal conditioning power

ADCs/DACs - Special Purpose Applications

• 12-bit data acquisition systems requiring low channel count
• Strain gauge bridge measurements with integrated signal conditioning control
• Industrial process control monitoring with power management requirements

ADCs/DACs - Special Purpose Procurement Notes

Verify the package type matches the SW designation (20-lead Plastic SO Wide). Confirm the temperature grade 'I' corresponds to the -40°C to 85°C range required for the application. Ensure the ordering suffix #PBF indicates lead-free compliance if necessary for the manufacturing process.

ADCs/DACs - Special Purpose Selection Notes

Select this component when an 8-channel 12-bit ADC with integrated sample-and-hold is needed. The LTC1296 is distinct from the LTC1293 (no SSO) and LTC1294 (separate AVCC/DVCC pins). Verify that the serial interface timing aligns with the microprocessor's clock capabilities, as it requires a synchronous half-duplex link.

ADCs/DACs - Special Purpose Part Context

This part belongs to the LTC1293/4/6 family of single-chip 12-bit data acquisition systems. The 'C' indicates commercial temperature performance, while 'I' denotes industrial temperature range (-40°C to 85°C). The 'SW' suffix specifies the 20-lead plastic small outline wide package. The '#PBF' suffix typically denotes lead-free and RoHS compliant packaging.

ADCs/DACs - Special Purpose Replacement Considerations

For devices requiring the same functionality but without the System Shutdown Output, consider the LTC1296BCSW or LTC1296DCSW. For lower channel counts, the LTC1294 series offers similar performance with separate digital/analog supplies. The LTC1293 provides identical electrical characteristics but lacks the SSO pin.