LTC1750IFW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1750IFW#PBF is a 14-bit, 80Msps wide bandwidth analog-to-digital converter (ADC) from Analog Devices Inc. It features a 500MHz full-power sample-and-hold bandwidth and supports direct IF sampling up to 500MHz. The device includes an on-chip programmable gain amplifier (PGA) offering selectable input ranges of 2.25VP-P or 1.35VP-P. Key performance metrics include a signal-to-noise ratio (SNR) of 75.5dB and a spurious-free dynamic range (SFDR) of 90dB with the PGA set to unity gain. It operates on a single 5V supply with a typical power dissipation of 1.45W.

Analog To Digital Converters (ADC) Feature Summary

• 80Msps sampling rate with 500MHz full-power bandwidth
• Integrated PGA for 2.25VP-P or 1.35VP-P differential input ranges
• Ultralow aperture jitter of 0.12ps RMS
• Digital interface compatible with 5V, 3V, 2V, and LVDS logic systems

Analog To Digital Converters (ADC) Applications

• Telecommunications
• Cellular base stations
• Spectrum analysis
• MRI systems
• Tomography

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications prior to procurement. Ensure storage conditions adhere to specified temperature ranges to maintain device integrity.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1750I variant for industrial temperature ranges (-40°C to 85°C). Ensure the driving circuit provides a low source impedance (less than 30Ω) to maintain the specified 500MHz bandwidth. Configure the MSBINV pin to select between two's complement or offset binary output formats based on downstream processor requirements.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1750 family of high-speed ADCs. It utilizes a pipelined architecture with four stages and a front-end PGA. The IFW suffix indicates a 48-lead plastic TSSOP package with a flow-through pinout designed to simplify board layout for high-speed digital interfaces.

Analog To Digital Converters (ADC) Replacement Considerations

Consult Analog Devices marketing for parts specified with wider operating temperature ranges. Verify pin compatibility if substituting with other members of the LTC1750 family.