LTC2226HLU#PBF

Analog To Digital Converters (ADC) Overview

The LTC2226HLU#PBF is a 12-bit, 25Msps low-power analog-to-digital converter (ADC) designed for high-frequency signal digitization. It operates on a single 3V supply with power dissipation of 75mW at full speed. The device features a flexible input range selectable between ±0.5V and ±1V via the SENSE pin. Key performance metrics include a typical Signal-to-Noise Ratio (SNR) of 71.4dB and Spurious Free Dynamic Range (SFDR) of 90dB. It incorporates an internal clock duty cycle stabilizer, shutdown/nap modes, and no missing codes over the –40°C to 125°C temperature range.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 25Msps sampling rate and pipeline architecture
• Low power consumption: 75mW typical at 25Msps; 2mW in shutdown mode
• Flexible analog input range: ±0.5V or ±1V differential, selectable via SENSE pin
• Internal clock duty cycle stabilizer for non-50% duty cycle inputs
• No missing codes over operating temperature range (–40°C to 125°C)

Analog To Digital Converters (ADC) Applications

• Automotive systems requiring high-speed data acquisition
• Industrial instrumentation and control applications
• Wireless and wired broadband communication infrastructure

Analog To Digital Converters (ADC) Procurement Notes

Verify the package type matches the datasheet specification for the LU suffix. Confirm that the ordering suffix #PBF indicates lead-free finish compliance. Ensure the component source provides valid traceability documentation for automotive or industrial grade parts.

Analog To Digital Converters (ADC) Selection Notes

Select this ADC when a 12-bit resolution and 25Msps throughput are required within a 3V single-supply system. Consider the ±1V input range for maximum dynamic range or ±0.5V for improved SFDR. Evaluate the need for the internal clock duty cycle stabilizer if the driving clock source has significant duty cycle distortion.

Analog To Digital Converters (ADC) Part Context

The LTC2226H belongs to a family of high-speed pipelined ADCs from Analog Devices. It is pin-compatible with the LTC2246H (14-bit) variant, allowing for design flexibility across different resolution requirements while maintaining the same footprint and interface characteristics.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC2246H is a pin-compatible alternative offering 14-bit resolution. Verify that the increased resolution meets system requirements without exceeding available power budgets or altering board layout constraints.