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LTC2637CMS-HMI12#PBF
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Product Detailed Parameters
- Description：IC DAC 12BIT V-OUT 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：12
- Number of D/A Converters：8
- Settling Time：5µs (Typ)
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：I2C
- Reference Type：External, Internal
- Voltage - Supply, Analog：5V
- Voltage - Supply, Digital：5V
- INL/DNL (LSB)：±1, ±1 (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-HMI12#PBF is an octal 12-bit voltage-output digital-to-analog converter from Analog Devices Inc. It features a high-accuracy internal reference with a 10ppm/°C temperature coefficient, providing a full-scale output of 4.096V. The device operates on a single 4.5V to 5.5V supply and includes rail-to-rail output buffers guaranteed monotonic over the –40°C to 85°C industrial temperature range. Communication is handled via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Power-on reset defaults to mid-scale in internal reference mode.
Feature Summary
- Octal 12-bit resolution with integrated 4.096V precision reference
- Rail-to-rail output buffers with ultralow crosstalk (<3nV•s)
- I2C-compatible serial interface with selectable addresses
- Power-on reset to mid-scale in internal reference mode
Applications
- Mobile communications
- Process control and industrial automation
- Automatic test equipment
- Portable equipment
- Automotive systems
- Optical networking
Procurement Notes
Verify the specific suffix HMI12 corresponds to the 12-bit resolution, mid-scale power-on reset, and 4.096V full-scale output configuration. Confirm the MS package type matches the 16-lead MSOP requirement for the design. Ensure the C grade commercial temperature range meets system thermal constraints.
Selection Notes
Select this part when eight independent 12-bit channels are required with low drift. The internal reference simplifies board layout compared to external reference designs. Verify that the 4.5V minimum supply voltage aligns with the system power rails, as the L-grade variant supports lower voltages but offers only 2.5V full scale.
Part Context
This component belongs to the LTC2637 family of octal DACs available in 12-, 10-, and 8-bit resolutions. Variants include the LTC2637-L for 2.7V–5.5V operation and LTC2637-H for higher performance. The CMS designation indicates the 16-lead MSOP package and commercial temperature grade.
Replacement Considerations
Direct parameter-equivalent substitutes within the same family include LTC2637IMS-HMI12#PBF for industrial temperature range or LTC2637CMS-HZ12#PBF for zero-scale power-on reset behavior. Cross-package replacements require verifying pin compatibility between DFN and MSOP footprints.
