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LTC2637CMS-LMX8#PBF
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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：8
- Number of D/A Converters：8
- Settling Time：3.5µs (Typ)
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：I2C
- Reference Type：External, Internal
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- INL/DNL (LSB)：±0.05, ±0.5 (Max)
- Architecture：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：16-TFSOP (0.118", 3.00mm Width)
- Supplier Device Package：16-MSOP
- Mounting Type：Surface Mount
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Overview
The LTC2637CMS-LMX8#PBF is an octal 8-bit voltage-output digital-to-analog converter from Analog Devices. It features a selectable internal or external reference, with the L-series providing a 2.5V full-scale output using a 10ppm/°C internal reference. The device operates on a single 2.7V to 5.5V supply and communicates via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It includes double-buffered data latches and a power-on reset circuit configured to reset to mid-scale in external reference mode. The component is housed in a 16-lead MSOP package.
Feature Summary
- Octal 8-bit resolution with rail-to-rail output buffers
- Integrated 10ppm/°C precision reference for 2.5V full-scale output
- I2C-compatible serial interface with selectable slave addresses
- Power-on reset to mid-scale in external reference mode
Applications
- Mobile communications
- Process control and industrial automation
- Automatic test equipment
- Portable equipment
- Automotive systems
Procurement Notes
Verify the specific ordering suffix LMX8#PBF against the manufacturer's current documentation to confirm the power-on reset behavior and package type. Ensure the design supports the required I2C clock rates and supply voltage range of 2.7V to 5.5V. Confirm that the 16-lead MSOP package dimensions match the PCB footprint requirements.
Selection Notes
Select this part when eight independent 8-bit voltage outputs are required in a compact surface-mount package. The L-series variant is suitable for applications requiring a 2.5V full-scale range powered by a single 2.7V to 5.5V supply. Choose the MX suffix if mid-scale initialization is preferred during power-up when using an external reference source.
Part Context
This component belongs to the LTC2637 family, which offers 12-, 10-, and 8-bit resolutions in both DFN and MSOP packages. The CMS designation indicates commercial temperature grade (0°C to 70°C), while the H-grade extends operation to 125°C. The L-series provides lower voltage operation compared to the H-series, which supports a 4.096V full-scale output.
Replacement Considerations
Direct substitutes within the same family include LTC2637CMS-LMI8#PBF (mid-scale reset in internal mode) and LTC2637CMS-LZ8#PBF (zero-scale reset). For different resolutions, consider LTC2637CMS-LMX10#PBF or LTC2637CMS-LMX12#PBF.
