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LTC2644CMS-L10#PBF
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Product Detailed Parameters
- Description：IC DAC 10BIT V-OUT 12MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：10
- Number of D/A Converters：2
- Settling Time：7.4µs (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)：±0.2, ±0.5 (Max)
- Architecture：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：12-TSSOP (0.118", 3.00mm Width)
- Supplier Device Package：12-MSOP
- Mounting Type：Surface Mount
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Overview
The LTC2644CMS-L10#PBF is a dual-channel, 10-bit PWM-to-voltage digital-to-analog converter (DAC) from Analog Devices. It features an integrated 10ppm/°C precision reference with a full-scale output of 2.5V and operates on a single 2.7V to 5.5V supply. The device converts PWM input signals into stable analog voltages without latency, updating outputs within 8µs typically. It includes rail-to-rail output buffers capable of sourcing/sinking up to 10mA at 5V. Key specifications include ±1LSB maximum DNL, ±2LSB maximum INL, and a typical supply current of 2.7mA at 3V.
Feature Summary
- Dual 10-bit PWM-to-VOUT DACs with no latency conversion
- Integrated 10ppm/°C reference providing 2.5V full-scale output
- Rail-to-rail output buffers with 10mA drive capability at 5V
- Pin-selectable internal or external reference modes
Applications
- Digital Calibration
- Trimming and Adjustment
- Level Setting
- Process Control and Industrial Automation
- Instrumentation
Procurement Notes
Verify the specific suffix #PBF indicates tube packaging rather than tape and reel. Confirm the 'C' temperature grade corresponds to the commercial range of 0°C to 70°C for this specific part number. Ensure compatibility with the required 12-lead MSOP package dimensions during procurement planning.
Selection Notes
Select the LTC2644CMS-L10#PBF when a dual-channel solution with 10-bit resolution is required. This model provides a fixed 2.5V full-scale output using the internal reference. Choose this over the L12 variant if lower linearity requirements are acceptable, or over the L8 variant if higher resolution is needed. Verify that the application supports the 0°C to 70°C operating temperature range.
Part Context
This component belongs to the LTC2644 family of PWM-to-voltage DACs. The 'L10' designation specifies 10-bit resolution, while 'MS' indicates the 12-lead MSOP package. The 'C' suffix denotes the commercial temperature grade. It serves as a direct replacement for discrete PWM filtering solutions in space-constrained designs.
Replacement Considerations
The LTC2644CMS-L12#PBF offers 12-bit resolution with similar pinout and functionality. The LTC2644CMS-L8#PBF provides 8-bit resolution. For quad-channel applications, consider the LTC2645 series. All variants share the same 12-lead MSOP package and basic interface.
