LTC2144CUP-12#PBF

Analog To Digital Converters (ADC) Overview

The LTC2144CUP-12#PBF is a dual-channel, 12-bit simultaneous sampling analog-to-digital converter (ADC) from Analog Devices Inc. Operating at a maximum sampling rate of 105Msps, it features a pipelined architecture with a single 1.8V supply. Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 70.6dB and a Spurious Free Dynamic Range (SFDR) of 89dB. The device offers selectable input ranges from 1Vp-p to 2Vp-p and supports full-rate CMOS, double data rate (DDR) CMOS, or DDR LVDS digital outputs. It is housed in a 64-lead 9mm × 9mm QFN package.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel simultaneous sampling with 12-bit resolution
• Sampling rates up to 105Msps with 70.6dB SNR and 89dB SFDR
• Low power consumption: 144mW total (72mW per channel)
• Optional data output randomizer and clock duty cycle stabilizer

Analog To Digital Converters (ADC) Applications

• Communications systems
• Cellular base stations
• Software defined radios
• Portable medical imaging
• Multi-channel data acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix '#PBF' indicates lead-free finish and tube packaging as listed in the manufacturer's order information table. Confirm that the 'C' grade designation corresponds to the commercial operating temperature range of 0°C to 70°C. Ensure compatibility with the 64-lead QFN footprint during procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select this model over the LTC2145-12 if a lower sampling rate of 105Msps is sufficient, as it reduces power dissipation to 144mW compared to 183mW for the 125Msps variant. Choose the 'I' grade suffix if operation below 0°C is required. Verify that the parallel programming mode requirements align with the CS, SCK, SDI, and SDO pin configurations.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC214x-12 family, which includes the LTC2145-12 (125Msps) and LTC2143-12 (80Msps). All variants share identical pinouts, architectures, and AC performance metrics, differing primarily in their maximum sampling frequencies and associated power consumption levels.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional replacements within the same family include the LTC2145CUP-12#PBF (higher speed) and LTC2143CUP-12#PBF (lower speed). These parts are pin-compatible and share the same package and interface specifications.