LTC2172IUKG-14#PBF

Analog To Digital Converters (ADC) Overview

The LTC2172IUKG-14#PBF is a 14-bit, 65Msps quad simultaneous sampling analog-to-digital converter (ADC) from Analog Devices. It operates on a single 1.8V supply and delivers high dynamic performance with a typical Signal-to-Noise Ratio (SNR) of 73.7dB and Spurious Free Dynamic Range (SFDR) of 90dB at 65Msps. The device features an ultralow jitter of 0.15ps RMS, enabling effective undersampling of intermediate frequency signals. DC specifications include ±1LSB Integral Nonlinearity (INL) and ±0.3LSB Differential Nonlinearity (DNL). Digital outputs are provided via serial LVDS interfaces to minimize data line count.

Analog To Digital Converters (ADC) Feature Summary

• Quad-channel simultaneous sampling architecture with 14-bit resolution
• High-speed sampling rate up to 65Msps with 73.7dB SNR and 90dB SFDR
• Low power consumption: 311mW total (78mW per channel)
• Serial LVDS outputs with selectable 1-lane or 2-lane modes
• Selectable input ranges from 1VP-P to 2VP-P

Analog To Digital Converters (ADC) Applications

• Communications systems
• Cellular base stations
• Software Defined Radios
• Portable medical imaging
• Multichannel data acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific speed grade and temperature range during procurement. The suffix 'I' indicates an industrial temperature range of –40°C to 85°C, while 'C' denotes commercial range. Ensure the ordering suffix matches the required package type, such as '#PBF' for tube packaging. Confirm that the 65Msps speed grade aligns with system timing requirements, as lower speed variants exist within the same family.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous sampling across four channels is required at high speeds. The LTC2172-14 offers the highest sampling rate in its series; consider LTC2171-14 (40Msps) or LTC2170-14 (25Msps) if lower power or reduced bandwidth suffices. Verify that the 1.8V single-supply operation fits the system power budget. Check interface compatibility for serial LVDS outputs and ensure the 52-pin QFN thermal management strategy supports the 311mW power dissipation.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2172-14/LTC2171-14/LTC2170-14 family of low-power quad ADCs. It shares pinout and functionality with the LTC2171-14 and LTC2170-14, differing primarily in maximum sampling frequency. The IUKG-14#PBF designation specifies the industrial temperature grade, 52-lead QFN package, and lead-free tube packaging.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same package include the LTC2171IUKG-14#PBF (40Msps) and LTC2170IUKG-14#PBF (25Msps). These offer lower power consumption but reduced sampling rates. Ensure the application can tolerate the lower bandwidth before substituting.