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LTC2637IMS-LMI12#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：4.5µs (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)：±1, ±1 (Max)
- Architecture：-
- Operating Temperature：-40°C ~ 85°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 LTC2637IMS-LMI12#PBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features an integrated precision reference with a temperature coefficient of 10ppm/°C, providing a full-scale output of 4.096V. The device operates on a single supply voltage ranging from 4.5V to 5.5V 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 outputs to mid-scale in internal reference mode.
Feature Summary
- Octal architecture with 12-bit resolution and rail-to-rail buffered outputs
- Integrated 10ppm/°C precision reference yielding 4.096V full-scale output
- Ultralow DAC-to-DAC crosstalk specification (<3nV•s)
- Guaranteed monotonic operation across the industrial temperature range (-40°C to 85°C)
Applications
- Mobile communications systems
- Process control and industrial automation
- Automatic test equipment
- Portable instrumentation
- Automotive electronics
- Optical networking
Procurement Notes
Verify that the ordering suffix #PBF confirms lead-free construction and RoHS compliance. Confirm the IMS package designation corresponds to the 16-lead MSOP form factor required for the target PCB layout. Ensure the LMI12 suffix matches the specific 12-bit resolution and mid-scale power-on reset configuration.
Selection Notes
Select this part when eight independent 12-bit channels are required within a compact footprint. The 4.096V full-scale range suits applications needing higher dynamic headroom compared to the 2.5V variant. Verify that the system supply voltage remains within the 4.5V to 5.5V window to ensure specified performance levels are met.
Part Context
This component belongs to the LTC2637 family, which offers 12-, 10-, and 8-bit resolutions in both 14-lead DFN and 16-lead MSOP packages. The 'I' grade indicates suitability for industrial temperature environments (-40°C to 85°C), distinguishing it from commercial or automotive grades within the same product line.
Replacement Considerations
Direct functional equivalents include other members of the LTC2637 family such as the LTC2637IMS-LZ12#PBF or LTC2637IMS-HMI12#PBF, provided the power-on reset behavior and full-scale voltage specifications align with the design requirements.
