LTC2644HMS-L12#PBF

$6.88

Description：IC DAC 12BIT V-OUT 12MSOP
Series：-

SKU:c9515404f995 Category: Digital to Analog Converters (DAC) Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC DAC 12BIT V-OUT 12MSOP
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Number of Bits：12
Number of D/A Converters：2
Settling Time：7.8µs (Typ)
Output Type：Voltage - Buffered
Differential Output：No
Data Interface：PWM
Reference Type：External, Internal
Voltage - Supply, Analog：2.7V ~ 5.5V
Voltage - Supply, Digital：2.7V ~ 5.5V
INL/DNL (LSB)：±1, ±1 (Max)
Architecture：-
Operating Temperature：-40°C ~ 125°C
Package / Case：12-TSSOP (0.118", 3.00mm Width)
Supplier Device Package：12-MSOP
Mounting Type：Surface Mount

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LTC2644HMS-L12#PBF

Overview

The LTC2644HMS-L12#PBF is a dual-channel, 12-bit PWM-to-voltage output DAC from Analog Devices. It features an integrated 10ppm/°C reference providing a 2.5V full-scale output and operates on a single 2.7V to 5.5V supply. The device converts PWM input signals into stable analog voltages with no latency, updating outputs within 8µs typically. It supports pin-selectable internal or external references and includes rail-to-rail output buffers capable of sourcing/sinking up to 10mA at 5V. Packaged in a 12-lead MSOP, it ensures monotonicity and low power consumption.

Feature Summary

Dual 12-bit resolution with ±2.5LSB max INL and ±1LSB max DNL
No latency PWM-to-voltage conversion; settles to 12-bit accuracy within 8µs
Integrated 10ppm/°C reference for 2.5V full-scale output
Rail-to-rail output buffers with 10mA drive capability at 5V

Applications

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

Procurement Notes

Verify the suffix #PBF indicates lead-free packaging and tube shipping format. Confirm the H grade corresponds to the automotive temperature range of –40°C to 125°C. Ensure the L12 designation matches the required 12-bit resolution and 2.5V internal reference full-scale voltage. Cross-check the MSOP package dimensions against PCB footprint requirements.

Selection Notes

Select this model for applications requiring direct PWM-to-analog conversion without external filters. The 12-bit resolution suits high-precision needs compared to the 10-bit (L10) or 8-bit (L8) variants. Choose the H grade for environments exceeding 85°C. Consider the external reference mode if a different full-scale voltage than 2.5V is required by connecting REFSEL to VCC.

Part Context

This component belongs to the LTC2644 family, which also includes 10-bit and 8-bit versions. It shares the same 12-lead MSOP package and core architecture as the quad-channel LTC2645. The part number structure defines resolution via the digit following 'L' (12 for 12-bit) and temperature grade via the letter (H for –40°C to 125°C).