LTC2158CUP-14

Analog To Digital Converters (ADC) Overview

The LTC2158CUP-14#PBF is a dual-channel, 14-bit, 310Msps analog-to-digital converter (ADC) from Analog Devices Inc. It utilizes a pipeline architecture with simultaneous sampling and DDR LVDS outputs. The device operates on a single 1.8V supply, dissipating approximately 688mW. Key electrical specifications include a full-power bandwidth of 1.25GHz, an input range of 1.32VP-P, and an integral nonlinearity (INL) typical value of ±0.6LSB. It features an internal reference, optional clock duty cycle stabilizer, and low power sleep/nap modes. The component is housed in a 64-lead (9mm × 9mm) QFN package.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel simultaneous sampling at 310Msps with 14-bit resolution
• 1.25GHz full-power bandwidth for high-frequency undersampling
• DDR LVDS digital outputs with programmable current levels
• Low power consumption: 688mW total dissipation at 1.8V

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 tube packaging. Confirm the 'C' grade corresponds to the commercial temperature range of 0°C to 70°C. Ensure the 'UP' suffix matches the 64-lead QFN package requirement. Cross-reference the part number with official Analog Devices documentation to confirm availability and exact pinout compatibility.

Analog To Digital Converters (ADC) Selection Notes

Select this model when 14-bit resolution is required alongside the 310Msps sampling rate of the LTC2158 family. The C-grade variant is suitable for commercial environments operating between 0°C and 70°C. For industrial applications requiring -40°C to 85°C operation, consider the I-grade equivalent. Ensure the design supports differential analog inputs and DDR LVDS output interfaces.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC2158 series of high-speed ADCs. It shares the same physical footprint and functional interface as the 12-bit LTC2158-12 variant, allowing for pin-compatible upgrades. The primary distinction is the increased resolution to 14 bits, which impacts dynamic performance metrics such as SNR and SFDR compared to the lower-resolution siblings.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC2158IUP-14#PBF serves as a direct replacement for extended temperature ranges (-40°C to 85°C). The LTC2158CUP-12#PBF offers pin compatibility but with reduced 12-bit resolution.