LTC2259IUJ-12#PBF

Analog To Digital Converters (ADC) Overview

The LTC2259IUJ-12#PBF is a 12-bit, 80Msps ultralow power analog-to-digital converter (ADC) from Analog Devices. It operates on a single 1.8V supply and dissipates 87mW with a sine wave input. The device features a pipeline architecture with an 800MHz full-power bandwidth sample-and-hold circuit. Key performance metrics include a typical Signal-to-Noise Ratio (SNR) of 70.6dB, Spurious Free Dynamic Range (SFDR) of 88dB, Integral Nonlinearity (INL) of ±0.3LSB, and Differential Nonlineity (DNL) of ±0.1LSB. It supports CMOS, DDR CMOS, or DDR LVDS digital outputs.

Analog To Digital Converters (ADC) Feature Summary

• 80Msps sampling rate with 12-bit resolution
• Ultralow power consumption of 87mW at 80Msps
• Single 1.8V analog supply operation
• Selectable input ranges: 1VP-P to 2VP-P via SENSE pin

Analog To Digital Converters (ADC) Applications

• Communications systems
• Cellular base stations
• Software defined radios
• Portable medical imaging
• Multi-channel data acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the 'I' grade designation corresponds to the –40°C to 85°C operating temperature range. Ensure the QFN-40 package dimensions match the PCB footprint requirements for the 6mm × 6mm plastic body.

Analog To Digital Converters (ADC) Selection Notes

Select this model when an 80Msps sampling rate is sufficient, as higher-speed variants like the LTC2260-12 (105Msps) or LTC2261-12 (125Msps) consume more power. Choose based on required digital output interface; ensure compatibility with CMOS, DDR CMOS, or LVDS logic levels. Verify that the 800MHz S/H bandwidth meets the Nyquist requirements for the target input frequency.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC2259-12 series, which includes industrial grade parts. It shares architectural similarities with the LTC2260-12 and LTC2261-12, differing primarily in maximum sampling speed and power dissipation. All three models utilize the same 40-pin QFN package and pinout configuration.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible replacements within the same family include the LTC2260IUJ-12#PBF and LTC2261IUJ-12#PBF. These alternatives offer higher sampling rates (105Msps and 125Msps respectively) but exhibit increased power consumption. Lower-speed variants such as the LTC2257-12 are not pin-compatible.