LTC6360CDD#PBF

Overview

The LTC6360CDD#PBF is a single-supply, very low noise amplifier designed for driving SAR ADCs. It features a total output noise density of 2.3nV/√Hz and achieves a settling time of 150ns to 16-bit levels for a 4V step. The device operates on a single 5V supply but swings output to true zero via an internal charge pump generating approximately -0.6V. Key electrical parameters include a maximum input offset voltage of 900µV (DD8 package), gain-bandwidth product of 1GHz, and shutdown current under 350µA. It is housed in an 8-lead 3mm × 3mm DFN package with an exposed pad.

Feature Summary

• Enables true zero output swing on a single supply using an integrated low-noise charge pump
• Provides high precision with fast settling times suitable for 16-bit and 18-bit SAR ADC applications
• Features extremely low noise density and harmonic distortion characteristics
• Includes a dedicated shutdown pin for significant power reduction

Applications

• Driving 16-bit and 18-bit SAR ADCs
• High-speed buffer amplifiers
• Low noise signal processing circuits

Procurement Notes

Verify the specific temperature grade 'C' corresponds to the 0°C to 70°C operating range required for your design environment. Confirm that the 8-lead DFN package footprint matches your PCB layout constraints. Ensure the application circuit accommodates the exposed pad connection to ground as specified in the datasheet pin configuration.

Selection Notes

Select this component when a single-supply solution is required that must drive signals down to 0V without external negative rails. Compare the 900µV maximum offset voltage against system accuracy requirements. Consider the 1GHz gain-bandwidth product for high-frequency signal integrity needs. Evaluate the thermal performance within the 3mm × 3mm DFN package for your specific power dissipation limits.

Part Context

This part belongs to the LTC6360 family of ultra-low noise amplifiers. The 'CDD' suffix indicates the 8-lead plastic DFN package variant with a commercial temperature range of 0°C to 70°C. Other variants in the series include the IDD (industrial) and HDD (extended) temperature grades, offering wider operational ranges while maintaining identical electrical specifications.

Replacement Considerations

Direct substitutes within the same package and specification profile include the LTC6360IDD#PBF for industrial temperature ranges (-40°C to 85°C) and the LTC6360HDD#PBF for extended ranges (-40°C to 125°C). Verify that any replacement maintains the 3mm × 3mm DFN form factor and pinout compatibility.