LTC6360HDD#TRPBF

Overview

The LTC6360HDD#TRPBF is a high-speed, low-noise amplifier designed for driving SAR ADCs. It features a total output noise density of 2.3nV/√Hz and a gain-bandwidth product of 1 GHz. The device operates on a single 5V supply with an input common mode range of 0V to 4.25V. It includes an internal charge pump enabling true zero output swing. Key electrical parameters include a maximum offset voltage of 900µV (DD8 package), a slew rate of 135V/µs, and a settling time of 150ns to 16-bit levels. It functions within a temperature range of –40°C to 125°C.

Feature Summary

• Integrates a low-noise on-chip charge pump to generate a negative bias rail, allowing the output to swing to true zero on a single positive supply.
• Provides high linearity with harmonic distortion as low as –103dBc (HD2) and –109dBc (HD3) at 4VP-P output.
• Features parallel NPN and PNP input differential pairs to maintain constant transconductance and minimize offset drift across the full input common mode range.
• Includes a dedicated shutdown pin that reduces total supply current to less than 350µA.

Applications

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

Procurement Notes

Verify the specific suffix 'HDD' corresponds to the –40°C to 125°C industrial temperature grade and DFN-8 package. Confirm the '#TRPBF' designation indicates tape and reel packaging with lead-free finish. Cross-reference the manufacturer part number with official Analog Devices documentation to ensure authenticity and correct revision level before procurement.

Selection Notes

Select this component when a single-supply amplifier requires true zero output swing without external negative rails. It is suitable for applications demanding high SNR and low distortion in ADC driver stages. Ensure the load capacitance and filter network values comply with stability guidelines for unity gain configurations. Verify that the input common mode voltage remains within the specified 0V to 4.25V range.

Part Context

This part belongs to the LTC6360 family of very low noise single-ended SAR ADC drivers. The 'HDD' variant specifically denotes the 8-lead (3mm × 3mm) plastic DFN package with an extended operating temperature range from –40°C to 125°C. It shares functional characteristics with other grade variants but differs in thermal performance and guaranteed parameter limits over temperature.

Replacement Considerations

Direct substitutes include LTC6360IDD#TRPBF for –40°C to 85°C operation or LTC6360CDD#TRPBF for commercial temperature ranges. For MSOP packages, consider LTC6360HMS8E#TRPBF. Verify pin compatibility and thermal resistance differences between DFN and MSOP packages.