LTC2284IUP#PBF

Analog To Digital Converters (ADC) Overview

The LTC2284IUP#PBF is a dual-channel, 14-bit, 105Msps low-power analog-to-digital converter (ADC) from Analog Devices. It operates on a single 3V supply (2.85V to 3.4V) with a typical power dissipation of 540mW. The device features a 575MHz full-power bandwidth sample-and-hold and supports flexible input ranges from ±0.5V to ±1V via the SENSE pins. Key performance metrics include a signal-to-noise ratio (SNR) of 72.4dB at 5MHz input and an spurious-free dynamic range (SFDR) of 88dB. It includes a clock duty cycle stabilizer, shutdown/nap modes, and is housed in a 64-lead QFN package.

Analog To Digital Converters (ADC) Feature Summary

• Dual 14-bit pipelined ADC cores operating at up to 105Msps sampling rate
• Low power consumption of 540mW with a single 3V analog supply
• High dynamic performance: 72.4dB SNR and 88dB SFDR at Nyquist
• Integrated clock duty cycle stabilizer for wide duty cycle tolerance
• Flexible analog input range selectable between ±0.5V and ±1V

Analog To Digital Converters (ADC) Applications

• Wireless and wired broadband communication systems
• Imaging systems requiring high-speed digitization
• Spectral analysis equipment
• Portable instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the I suffix indicates an industrial temperature range of -40°C to +85°C. Confirm the #PBF suffix denotes lead-free compliance. Ensure the QFN-64 package footprint matches the design layout, specifically noting the exposed pad must be soldered to ground. Check for availability of recommended development kits such as DC816A-D or DC851A-D for evaluation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when dual-channel 14-bit resolution at 105Msps is required. Compare against the pin-compatible LTC2282 (12-bit) for lower resolution needs or other family members like LTC2296 (25Msps) for lower power applications. Ensure the system clock duty cycle requirements align with the internal stabilizer capabilities if MODE pin configuration is utilized.

Analog To Digital Converters (ADC) Part Context

The LTC2284 belongs to the LTC22xx family of low-power 3V ADCs. It shares pin compatibility with the LTC2282 (12-bit), LTC2294 (12-bit, 80Msps), LTC2299 (14-bit, 80Msps), and others in the series. This allows for design flexibility across different speed and resolution requirements without changing the PCB layout.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same family include the LTC2282CUP#PBF (12-bit, 105Msps) and LTC2299IUP#PBF (14-bit, 80Msps). Verify that the specific performance parameters of the substitute meet the application's SNR and SFDR requirements.