LTC1742IFW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1742IFW#PBF is a 14-bit, 65Msps pipelined analog-to-digital converter (ADC) from Analog Devices. It operates on a single 5V supply with a power dissipation of 1.275W. The device features selectable differential input ranges of –1V or –1.6V via the SENSE pin. Key performance metrics include a signal-to-noise ratio (SNR) of 76.5dB and a spurious-free dynamic range (SFDR) of 90dB at a 3.2V range. It utilizes a 48-lead TSSOP package and supports digital interfaces compatible with 5V, 3V, 2V, and LVDS logic levels.

Analog To Digital Converters (ADC) Feature Summary

• 65Msps sampling rate with 14-bit resolution and no missing codes
• Selectable input ranges: –1V (SENSE grounded) or –1.6V (SENSE to VDD)
• Ultralow aperture jitter of 0.15ps RMS for high-frequency undersampling
• Digital output supply (OVDD) adjustable from 0.5V to 5V for low-voltage DSP interfacing

Analog To Digital Converters (ADC) Applications

• Telecommunications systems
• Cellular base stations
• Spectrum analysis equipment
• Imaging systems

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as indicated in official documentation. Check current lifecycle status, as high-speed ADCs may undergo obsolescence notices. Ensure proper handling for ESD-sensitive components during storage and assembly.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1742IFW#PBF for applications requiring high linearity at 65Msps. Choose the 'I' suffix for industrial temperature range (-40°C to 85°C). Ensure the driving circuit can maintain source impedance below 100Ω per input to optimize SFDR. Verify that the required OVDD voltage matches the downstream digital logic family.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC174x family of pin-compatible high-speed ADCs. Other members include the LTC1741 (12-bit), LTC1743 (12-bit), LTC1744 (14-bit), LTC1745 (12-bit), LTC1746 (14-bit), LTC1747 (12-bit), and LTC1748 (14-bit), offering varying sample rates from 25Msps to 80Msps.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same family include the LTC1744IFW#PBF (14-bit, 50Msps) and LTC1746IFW#PBF (14-bit, 25Msps). These offer lower speeds but share the same 48-TSSOP footprint and interface.