LTC1290CIN#PBF

Analog To Digital Converters (ADC) Overview

The LTC1290CIN#PBF is a single-chip 12-bit data acquisition system manufactured by Analog Devices Inc. It integrates an 8-channel analog multiplexer, sample-and-hold circuit, and successive approximation A/D converter. The device supports unipolar or bipolar conversions with a maximum throughput rate of 50kHz. It operates on a single 5V supply or ±5V supplies, drawing 6.0mA during active conversion. The component features a synchronous full-duplex serial interface compatible with industry-standard microprocessor ports, allowing software-programmable configuration for input types, data word length, and power shutdown modes.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 12-bit SAR ADC with 8-channel multiplexer and built-in sample-and-hold
• Software programmable for unipolar/bipolar modes, MSB/LSB-first output, and variable word lengths (8, 12, or 16 bits)
• Synchronous full-duplex serial interface with direct compatibility to MPU serial and parallel ports
• Power shutdown capability via serial command to minimize consumption in idle states

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition
• Battery-powered digital devices utilizing low-power shutdown features
• Distributed DC power systems monitoring multiple voltage points
• Microprocessor-based data logging applications interfacing via SPI or Microwire

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific temperature grade suffix within the part number. The 'C' designation indicates a commercial operating range of 0°C to 70°C. Ensure the ordering suffix matches the required package type, as the '#PBF' denotes lead-free packaging in a 20-lead PDIP format. Confirm availability through authorized distributors, as manufacturing status may vary.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a monolithic solution for 8-channel 12-bit acquisition is required without external multiplexers. The LTC1290CIN is suitable for applications needing up to 50kHz throughput. For wider temperature ranges, consider the 'I' (industrial) or 'M' (military) variants. Ensure the input source impedance is managed to maintain accuracy at the maximum clock frequency.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1290 family of data acquisition components. The CIN variant specifically refers to the commercial temperature grade version housed in a 20-lead Plastic Dual In-Line Package (PDIP). Other package options include SO Wide and Ceramic DIP, while different temperature grades offer extended operational ranges for harsh environments.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same series include the LTC1290BIN and LTC1290DIN for different performance grades. For broader replacements, evaluate the LTC1292, which offers similar functionality but with higher resolution and sampling rates. Verify that any substitute maintains the required serial interface timing and voltage levels.