LTC2645CMS-L10#TRPBF

Overview

The LTC2645CMS-L10#TRPBF is a quad 10-bit PWM-to-voltage output DAC in a 16-lead MSOP package. It integrates a high-accuracy, low-drift 10ppm/°C reference with a full-scale output of 2.5V. The device measures PWM period and pulse width to update outputs within 8µs, eliminating analog filter latency. It operates on a single 2.7V to 5.5V supply, supports rail-to-rail buffered outputs sourcing/sinking up to 5mA at 3V, and guarantees monotonicity over the commercial temperature range of 0°C to 70°C.

Feature Summary

• Quad 10-bit resolution with ±1LSB max DNL and ±1LSB max INL
• Integrated 10ppm/°C reference providing 2.5V full-scale output
• No-latency conversion with voltage output settling within 8µs
• Pin-selectable internal or external reference modes

Applications

• Digital Calibration
• Trimming and Adjustment
• Level Setting
• Process Control and Industrial Automation

Procurement Notes

Verify the suffix #TRPBF indicates a tape and reel quantity of 2,500 units. Confirm the 'C' grade designation matches the required commercial operating temperature range of 0°C to 70°C for the specific application environment.

Selection Notes

Select this part for applications requiring direct PWM input without external filtering. Ensure the PWM frequency is between 30Hz and 25kHz for accurate 10-bit conversion. Verify that the load current requirements do not exceed the 5mA sourcing/sinking capability at 3V operation.

Part Context

This component belongs to the LTC2645 family, which includes 12-bit (LTC2645-L12) and 8-bit (LTC2645-L8) variants. All variants share the same 16-lead MSOP package and integrated reference architecture, differing primarily in resolution and linearity specifications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.