LTC2253CUH#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2253CUH#TRPBF is a 12-bit, 125Msps low power analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates on a single 3V supply with typical power dissipation of 395mW. The device features a flexible differential input range selectable between 1VP-P and 2VP-P via the SENSE pin. Key performance metrics include a signal-to-noise ratio (SNR) of 70.2dB at 5MHz input and a spurious-free dynamic range (SFDR) of 88dB. It utilizes a pipelined architecture with an internal clock duty cycle stabilizer and is housed in a 32-lead 5mm × 5mm QFN package.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 125Msps sampling rate
• Single 3V supply operation (2.85V to 3.4V)
• Flexible analog input range: 1VP-P or 2VP-P
• Integrated clock duty cycle stabilizer

Analog To Digital Converters (ADC) Applications

• Wireless and wired broadband communication systems
• Imaging systems requiring high dynamic range
• Ultrasound equipment
• Spectral analysis instruments
• Portable instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the #TRPBF suffix indicates tape and reel packaging for automated assembly. Confirm the 'C' grade designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the component is lead-free compliant as indicated by the PBF suffix. Cross-reference the manufacturer part number with official Analog Devices documentation to validate authenticity.

Analog To Digital Converters (ADC) Selection Notes

Select this model for applications requiring 125Msps throughput with low power consumption under a single 3V supply. Choose the 1VP-P input range configuration if driving signals are smaller, or 2VP-P for larger swings. Ensure the system clock supports the required duty cycle stabilization. Verify that the 32-QFN package footprint matches the PCB layout constraints.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC2253/LTC2252 family of low power 3V ADCs. The LTC2253 variant provides 125Msps speed, while the LTC2252 offers 105Msps. Both share pin compatibility within the family, which includes other variants like the LTC2255 (14-bit, 125Msps). The CUH suffix specifies the commercial temperature grade and QFN package type.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same family include the LTC2252 (105Msps), LTC2255 (14-bit, 125Msps), and LTC2254 (14-bit, 105Msps). Lower speed options such as the LTC2229 (80Msps) or LTC2228 (65Msps) may also serve as substitutes if bandwidth requirements allow.