LTC2142IUP-12#PBF

Analog To Digital Converters (ADC) Overview

The LTC2142IUP-12#PBF is a dual-channel, simultaneously sampling 12-bit analog-to-digital converter (ADC) from Analog Devices. Operating at a maximum sampling rate of 65Msps, it features a pipeline architecture with a 750MHz full-power bandwidth sample-and-hold circuit. The device achieves a typical signal-to-noise ratio (SNR) of 70.8dB and a spurious-free dynamic range (SFDR) of 89dB. It operates on a single 1.8V supply with total power dissipation of 92mW. Key DC specifications include ±0.3LSB integral nonlinearity (INL) and ±0.1LSB differential nonlinearity (DNL). The component 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 and 65Msps throughput
• Low power consumption: 92mW total (46mW per channel) at 65Msps
• High dynamic performance: 70.8dB SNR and 89dB SFDR
• Flexible digital outputs supporting full-rate CMOS, DDR CMOS, or DDR LVDS modes

Analog To Digital Converters (ADC) Applications

• Cellular base stations
• Software defined radios
• Portable medical imaging
• Multi-channel data acquisition
• Nondestructive testing

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 64-pin QFN footprint during procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select this model over the LTC2141 or LTC2140 variants if the system requires the highest sampling speed of 65Msps. Consider the output interface requirements; choose between CMOS or LVDS based on board trace length and noise immunity needs. Verify that the 1.8V analog supply and adjustable OVDD (1.2V–1.8V) align with the system power rails.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2142-12/LTC2141-12/LTC2140-12 family of low-power dual ADCs. The 'I' suffix denotes the industrial temperature range variant, while 'C' would indicate commercial range. The '#PBF' suffix specifies lead-free manufacturing and tube packaging, distinguishing it from the tape-and-reel '#TRPBF' option.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC2142IUP-12#TRPBF serves as the identical functional replacement but utilizes tape-and-reel packaging instead of tubes. For lower speed requirements, the LTC2141IUP-12 (40Msps) or LTC2140IUP-12 (25Msps) are pin-compatible alternatives within the same series.