LTC2222IUK#PBF

Analog To Digital Converters (ADC) Overview

The LTC2222IUK#PBF is a 12-bit, 105Msps pipelined analog-to-digital converter in a 48-lead 7mm x 7mm QFN package. It operates on a single 3.3V supply with typical power dissipation of 475mW. Key electrical specifications include a signal-to-noise ratio (SNR) of 68dB at 30MHz input and a spurious-free dynamic range (SFDR) of 80dB up to 170MHz. The device features an ultralow aperture jitter of 0.15ps RMS, selectable input ranges of ±0.5V or ±1V, and no missing codes over the operating temperature range.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 105Msps sampling rate
• 68dB SNR and 80dB SFDR for high-frequency signals
• Ultralow 0.15ps RMS aperture jitter
• Selectable ±0.5V or ±1V differential input ranges

Analog To Digital Converters (ADC) Applications

• Wireless and wired broadband communication systems
• Cable head-end systems
• Power amplifier linearization
• Communications test equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and tube packaging when sourcing. Confirm the 'I' grade designation corresponds to the –40°C to 85°C industrial temperature range required for the application environment. Ensure compatibility with the 48-lead QFN footprint during procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high-speed digitization of wide dynamic range signals. The 105Msps rate supports undersampling of IF frequencies. Consider the 475mW power dissipation for thermal management. Verify that the 3.3V single-supply requirement aligns with the system power architecture.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2222/LTC2223 family of 12-bit ADCs. It is pin-compatible with the LTC2224 (135Msps) and LTC2223 (80Msps). The 'I' suffix denotes the industrial temperature grade, while '#PBF' specifies the lead-free finish and tube shipping configuration.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC2224CUK#PBF offers higher speed at 135Msps with similar pinout. The LTC2223IUK#PBF provides a lower sampling rate of 80Msps. Both are pin-compatible alternatives within the same family.