LTC2174IUKG-12#PBF

Analog To Digital Converters (ADC) Overview

The LTC2174IUKG-12#PBF is a 4-channel, simultaneous sampling 12-bit analog-to-digital converter (ADC) operating at a maximum sampling rate of 105Msps. It features an ultralow jitter of 0.15ps RMS and a full-power bandwidth of 800MHz. The device delivers a typical signal-to-noise ratio (SNR) of 70.6dB and a spurious-free dynamic range (SFDR) of 88dB. Powered by a single 1.8V supply, it dissipates 439mW in 2-lane mode with 1.75mA output current. Digital outputs utilize serial LVDS with selectable 1 or 2 bits per channel. Integral nonlinearity is typically ±0.3LSB, and differential nonlinearity is typically ±0.1LSB.

Analog To Digital Converters (ADC) Feature Summary

• Four-channel simultaneous sampling architecture with 12-bit resolution
• 105Msps sampling rate with 800MHz sample-and-hold full-power bandwidth
• Serial LVDS digital outputs supporting 1-lane or 2-lane modes
• Internal clock duty cycle stabilizer for high performance across varying clock duties

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 package type is the 52-lead (7mm × 8mm) plastic QFN with an exposed ground pad. Confirm the temperature grade corresponds to the 'I' suffix, indicating operation from –40°C to 85°C. Ensure the ordering suffix '#PBF' matches the lead-free tube packaging requirement for the specific procurement quantity.

Analog To Digital Converters (ADC) Selection Notes

Select this model over the LTC2175-12 if a 105Msps sampling rate is sufficient, as it offers lower power consumption (439mW vs 545mW). Choose the LTC2173-12 variant only if the application requires a reduced sampling rate of 80Msps for further power savings. Verify that the 1.8V single-supply architecture aligns with the system power design.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC217x-12 family, which includes the LTC2175-12 (125Msps) and LTC2173-12 (80Msps). All variants share pin compatibility and architectural similarities, differing primarily in speed grades and associated power dissipation levels. The family is designed for digitizing high-frequency, wide dynamic range signals.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same series include the LTC2175IUKG-12#PBF for higher speed requirements and the LTC2173IUKG-12#PBF for lower power applications. These parts share identical footprints and register maps.