LTC2228CUH#PBF

Analog To Digital Converters (ADC) Overview

The LTC2228CUH#PBF is a 12-bit, 65Msps low-power analog-to-digital converter (ADC) from Analog Devices Inc. It operates on a single 3V supply (2.7V to 3.4V) with power dissipation of 205mW at full speed. The device features a flexible differential input range of ±0.5V to ±1V and includes an internal reference. Key AC performance metrics include a typical Signal-to-Noise Ratio (SNR) of 71.3dB and Spurious Free Dynamic Range (SFDR) of 90dB at the Nyquist frequency. It utilizes a pipelined architecture with a 5-cycle latency and offers shutdown and nap modes for power management.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with no missing codes over temperature
• 65Msps sampling rate with 71.3dB SNR and 90dB SFDR
• Single 3V supply operation with 205mW power consumption
• Integrated clock duty cycle stabilizer and flexible input range

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the package type is the 32-lead (5mm × 5mm) Plastic QFN. Confirm the operating temperature range is commercial grade (0°C to 70°C), as indicated by the 'C' suffix in the part number. Ensure the lead-free finish (#PBF) matches system requirements. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 65Msps sampling rate is required for digitizing high-frequency signals. Compare against the LTC2227 (40Msps) or LTC2226 (25Msps) if lower power consumption is prioritized over speed. Consider the LTC2248 if 14-bit resolution is needed instead of 12-bit. Verify that the input drive capability meets the requirements for the selected input voltage range.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2228/LTC2227/LTC2226 family of low-power 3V ADCs. It is pin-compatible with other members of the series, such as the LTC2227 and LTC2226, which offer lower sampling rates. The family also includes higher-speed variants like the LTC2253 (125Msps) and LTC2229 (80Msps). The CUH suffix denotes the commercial temperature range and QFN package.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include the LTC2227CUH#PBF (40Msps) and LTC2226CUH#PBF (25Msps) for lower power applications. For higher performance, the LTC2229CUH#PBF (80Msps) is available. External alternatives require verification of interface compatibility and performance specifications.