LTC1290DCN#PBF

Analog To Digital Converters (ADC) Overview

The LTC1290DCN#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 conversion modes with software-programmable input configurations for differential or single-ended signals. It operates on a single +5V supply or dual ±5V supplies, drawing a typical supply current of 6.0mA. The component features a synchronous full-duplex serial interface compatible with industry-standard microprocessor ports, allowing direct connection without external hardware.

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 or eight single-ended inputs with an on-chip sample-and-hold.
• Serial Interface: Full-duplex serial I/O supports MSB-first or LSB-first data sequences and variable word lengths (8, 12, or 16 bits).
• Low Power Operation: Includes a power shutdown mode to minimize consumption when idle.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel signal acquisition.
• Data logging equipment for environmental or mechanical parameter monitoring.
• Microprocessor-based instrumentation interfaces.
• Battery-powered devices utilizing power shutdown capabilities.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific temperature grade associated with the DC suffix against project requirements. The datasheet identifies the LTC1290DC as covering the commercial temperature range of 0°C to 70°C. Ensure that the ordering suffix #PBF confirms lead-free compliance if required by assembly specifications. Cross-reference the package type N (PDIP-20) with PCB footprint designs to ensure mechanical compatibility.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high channel count is needed in a single package with moderate speed requirements up to 50kHz throughput. Consider the DC grade for standard commercial applications; use the DI grade for industrial ranges (-40°C to 85°C) if wider thermal operation is necessary. Verify that the serial interface timing parameters align with the host microcontroller's clock speeds and setup/hold time constraints.

Analog To Digital Converters (ADC) Part Context

The LTC1290 belongs to the Linear Technology family of single-chip data acquisition systems. It combines analog front-end switching and conditioning with digital conversion logic. The DCN#PBF designation specifies the commercial temperature variant housed in a 20-lead Plastic Dual In-line Package (PDIP), providing a through-hole mounting solution suitable for prototyping and general-purpose circuit boards.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers include LTC1290BIN#PBF, LTC1290CCN#PBF, and LTC1290DIN#PBF. These variants share identical electrical characteristics but differ in temperature grades or package styles. Ensure the replacement matches the required thermal operating range and physical package dimensions for direct pin-to-pin substitution.