LTC2249CUH#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2249CUH#TRPBF is a 14-bit, 80Msps low-power analog-to-digital converter (ADC) from Analog Devices Inc. It operates on a single 3V supply (2.7V to 3.4V) with typical power dissipation of 222mW. The device features a flexible input range of 1VP-P to 2VP-P and achieves 73dB SNR and 90dB SFDR at 70MHz input. It utilizes a pipelined architecture with a 5-cycle latency and includes a clock duty cycle stabilizer. The component is housed in a 32-lead 5mm × 5mm QFN package.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with no missing codes over temperature
• 80Msps sampling rate with 575MHz full power bandwidth
• Single 3V supply operation with 222mW typical power consumption
• Integrated clock duty cycle stabilizer for high performance

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the #TRPBF suffix indicates a lead-free tape and reel packaging format. Confirm the 'C' grade designation corresponds to the 0°C to 70°C operating temperature range. Ensure the source documentation matches the specific lot markings and RoHS compliance status provided by the manufacturer.

Analog To Digital Converters (ADC) Selection Notes

Select this model for applications requiring 14-bit accuracy at 80Msps with low power constraints. Choose the 2V input range for optimal SNR or the 1V range for improved SFDR. Ensure the driving circuit can maintain source impedance below 100Ω to preserve dynamic performance. Verify compatibility with the 32-pin QFN footprint during PCB layout.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2249 family of 14-bit, 80Msps ADCs. It is pin-compatible with other speeds in the series, such as the 65Msps LTC2248 and 105Msps LTC2254. The CUH variant specifically denotes the commercial temperature grade within the plastic QFN package offering.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements include the LTC2248 (65Msps) and LTC2254 (105Msps). Higher speed options like the LTC2255 (14-bit, 105Msps) are available but require verification of power and interface timing compatibility.