LTC2171IUKG-12#PBF

Analog To Digital Converters (ADC) Overview

The LTC2171IUKG-12#PBF is a four-channel, simultaneous sampling 12-bit analog-to-digital converter (ADC) operating at a maximum sampling rate of 40Msps. It features an ultralow jitter of 0.15psRMS and delivers a typical Signal-to-Noise Ratio (SNR) of 71dB and Spurious Free Dynamic Range (SFDR) of 90dB. The device operates on a single 1.8V supply with total power dissipation of 198mW. Digital outputs utilize serial LVDS with selectable one-lane or two-lane modes. DC specifications include ±0.3LSB INL and ±0.1LSB DNL. It is housed in a 52-pin QFN package.

Analog To Digital Converters (ADC) Feature Summary

• Four-channel simultaneous sampling architecture
• 40Msps sampling rate with 0.15psRMS jitter
• Serial LVDS digital outputs with adjustable drive current
• Internal clock duty cycle stabilizer

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 against project requirements, as the LTC2171 series includes variants with different sampling rates. Confirm that the I-grade temperature range (-40°C to 85°C) matches the operational environment. Ensure the 52-lead QFN footprint aligns with the PCB layout design.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring low power consumption alongside high dynamic range performance. Compare against the LTC2172-12 if higher sampling speeds are needed, or the LTC2170-12 for lower power at reduced speeds. Consider the internal reference voltage stability when designing external biasing networks.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC217x-12 family of low-power quad ADCs. It shares pin compatibility with the 14-bit versions and the other speed grades within the same package. The device is designed to digitize high-frequency signals with wide dynamic range capabilities.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives include the LTC2172IUKG-12#PBF (65Msps) and LTC2170IUKG-12#PBF (25Msps). Verify that the sampling rate and power dissipation differences do not impact system timing or thermal constraints.