LTC1290CCSW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1290CCSW#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 (12-bit) and bipolar (11-bit plus sign) conversions with a maximum throughput rate of 50kHz. It operates on a single +5V supply or dual ±5V supplies, drawing 6.0mA during active conversion. The component features a synchronous full-duplex serial interface compatible with industry-standard microprocessor ports and is housed in a 20-lead SO Wide package.

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 circuit for all single-ended inputs
• Software programmable for MSB-first or LSB-first data output sequences
• Variable output word length selectable between 8, 12, or 16 bits

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition
• Data logging equipment utilizing serial communication interfaces
• Microprocessor-based measurement systems with direct SPI/MICROWIRE compatibility

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific temperature grade associated with the 'C' suffix against the required operating range. Confirm that the 20-SO wide package dimensions match the target PCB footprint. Ensure the ordering suffix '#PBF' is included to guarantee lead-free compliance according to manufacturer specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high channel count is needed within a single IC footprint. The internal sample-and-hold simplifies external circuit design for single-ended inputs. Verify that the microprocessor interface supports the required serial clock frequencies up to 2MHz for SCLK and 4MHz for ACLK.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1290 family of 12-bit data acquisition systems. The 'CCSW' designation indicates the commercial temperature range (0°C to 70°C) and the 20-lead plastic SO Wide package. Other variants include industrial temperature ranges and PDIP packages.

Analog To Digital Converters (ADC) Replacement Considerations

LTC1290BCSW#PBF: Lower speed grade, same package. LTC1290DCSW#PBF: Higher speed grade, same package. LTC1290CISW#TRPBF: Industrial temperature range, tape and reel packaging.