LTC2156CUP-12#PBF

Analog To Digital Converters (ADC) Overview

The LTC2156CUP-12#PBF is a dual-channel, 12-bit analog-to-digital converter (ADC) operating at a maximum sampling rate of 210Msps. It features a single 1.8V supply and delivers a typical Signal-to-Noise Ratio (SNR) of 68.5dBFS and a Spurious Free Dynamic Range (SFDR) of 90dBFS. The device includes an internal voltage reference and common-mode bias output. Digital outputs are provided as double data rate (DDR) LVDS signals with a pipeline latency of six clock cycles. It is housed in a 64-lead, 9mm × 9mm plastic QFN package and supports an operating temperature range of 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• Dual 12-bit ADC cores with 210Msps sampling rate
• 68.5dB SNR and 90dB SFDR performance
• Single 1.8V supply operation with low power consumption (592mW typ)
• Internal 1.25V reference and VCM output
• DDR LVDS digital outputs with optional duty cycle stabilizer

Analog To Digital Converters (ADC) Applications

• Communications systems
• Cellular base stations
• Software defined radios
• Medical imaging equipment
• High definition video processing
• Testing and measurement instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix '#PBF' indicates lead-free finish and tape and reel availability if required. Confirm the 'C' grade designation matches the 0°C to 70°C commercial temperature range for the intended application environment. Ensure the QFN-64 package footprint aligns with PCB design constraints.

Analog To Digital Converters (ADC) Selection Notes

Select this part over the LTC2157-12 if a 210Msps sampling rate is sufficient, as it offers lower power dissipation (592mW vs 628mW). Choose the 'I' grade variant (LTC2156IUP-12#PBF) if the application requires operation down to -40°C. Verify that the 1.5VP-P input range and DDR LVDS interface are compatible with the system's signal source and receiver logic.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC215x-12 family of high-speed, dual-channel ADCs from Analog Devices. It shares pin compatibility with the 14-bit versions (LTC2155/2156/2157-14) and the higher-speed LTC2157-12. The device is designed for applications requiring wide dynamic range and high linearity in a compact form factor.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include the LTC2157CUP-12#PBF (250Msps) and LTC2155CUP-12#PBF (170Msps). For wider temperature ranges, use the corresponding 'I' grade parts: LTC2156IUP-12#PBF, LTC2157IUP-12#PBF, or LTC2155IUP-12#PBF.