LTC1290DIN#PBF

Analog To Digital Converters (ADC) Overview

The LTC1290DIN#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 and bipolar conversions with software-programmable features including differential or single-ended input configurations. It operates on a single +5V supply or ±5V supplies, drawing 6.0mA during active conversion. The component utilizes a synchronous full-duplex serial interface compatible with industry standards, allowing direct connection to microprocessors.

Analog To Digital Converters (ADC) Feature Summary

• 12-Bit Resolution: Provides 12-bit accuracy with guaranteed no missing codes across the operating temperature range.
• 8-Channel Multiplexer: Configurable for four differential pairs or eight single-ended inputs relative to COM.
• Built-in Sample-and-Hold: Includes an on-chip S/H for all single-ended channels to maintain signal integrity during conversion.
• Serial Interface: Features a 4-wire synchronous serial port supporting MSB-first or LSB-first data sequences and variable word lengths (8, 12, or 16 bits).

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition.
• Data logging equipment for environmental monitoring.
• Microprocessor-based instrumentation interfaces.

Analog To Digital Converters (ADC) Procurement Notes

Verify that the ordering suffix #PBF confirms lead-free compliance and RoHS status as specified in the manufacturer's documentation. Confirm the package type corresponds to the 20-lead PDIP format required for through-hole mounting. Ensure the temperature grade matches the application requirements, as the 'D' suffix indicates the industrial range of -40°C to +85°C.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high channel count is needed within a single IC footprint. It is suitable for applications where power consumption must be managed via the programmable shutdown mode. Ensure the external reference voltage source can provide sufficient current, as the internal reference buffer draws up to 50µA. Verify that the microprocessor interface timing meets the setup and hold requirements for SCLK and CS signals.

Analog To Digital Converters (ADC) Part Context

The LTC1290 belongs to the Linear Technology family of precision data converters. It is designed to replace discrete ADC and multiplexer solutions, reducing board space and design complexity. The DIN variant specifically denotes the plastic dual in-line package, distinguishing it from surface-mount SO Wide or ceramic DIP options available in the same series.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same series include the LTC1290BIN, LTC1290CCN, and LTC1290DCN, which share identical functionality but differ in temperature grades and initial accuracy specifications. Consult the datasheet for specific electrical parameter differences between these variants before substitution.