LTC2645IMS-L10#TRPBF

Overview

The Analog Devices LTC2645IMS-L10#TRPBF is a quad 10-bit PWM-to-voltage digital-to-analog converter housed in a 16-lead MSOP package. It features an integrated 10ppm/°C reference, providing a 2.5V full-scale output. The device accepts PWM inputs between 30Hz and 25kHz, updating outputs within 8µs typically. It operates on a single 2.7V to 5.5V supply with rail-to-rail buffered outputs capable of sourcing/sinking up to 10mA at 5V. Key specifications include ±1 LSB maximum DNL and ±2.5 LSB maximum INL for the 10-bit variant.

Feature Summary

• Quad 10-bit resolution with pin-selectable internal (2.5V) or external reference
• No latency PWM-to-voltage conversion; updates settle within 8µs
• Rail-to-rail buffered outputs supporting up to 10mA load current
• Low power consumption: 4mA typical at 3V, <1µA in power-down mode

Applications

• Digital calibration systems
• Trimming and adjustment circuits
• Process control and industrial automation
• Automotive instrumentation

Procurement Notes

Verify the L10 suffix confirms 10-bit resolution and 2.5V internal reference scaling. Confirm the IMS package denotes the 16-lead MSOP form factor. Ensure the #TRPBF suffix indicates tape and reel packaging for automated assembly processes.

Selection Notes

Select this part when a quad DAC solution is required with direct PWM input compatibility to eliminate external analog filters. The 10-bit resolution balances precision and speed for applications requiring updates up to 25kHz. Verify that the 2.5V internal reference range meets the system voltage requirements.

Part Context

This component belongs to the LTC2645 family, which offers 12-, 10-, and 8-bit resolutions in the same 16-lead MSOP footprint. The L10 designation specifically identifies the 10-bit version, distinguishing it from the higher-precision L12 or lower-speed L8 variants within the same product line.

Replacement Considerations

Publicly confirmed substitutes include the LTC2645IMS-L10#PBF for tube packaging or the LTC2645IMS-L12#TRPBF if higher 12-bit resolution is acceptable.