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LTC2637HMS-HMX8#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：3.9µs (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)：±0.05, ±0.5 (Max)
- Architecture：-
- Operating Temperature：-40°C ~ 125°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 LTC2637HMS-HMX8#PBF is an octal, 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a high-accuracy internal 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 to mid-scale in external reference mode.
Feature Summary
- Octal architecture with 8 independent 8-bit DAC channels
- Integrated precision reference yielding 4.096V full-scale output
- Ultralow crosstalk between DACs (<3nV•s)
- Power-on reset to mid-scale for external reference mode
Applications
- Process control and industrial automation
- Automatic test equipment
- Portable equipment
- Automotive systems
Procurement Notes
Verify the H-grade automotive temperature rating (-40°C to 125°C) and MSOP-16 package configuration. Confirm the HMX suffix indicates the specific power-on reset behavior for external reference applications. Ensure supply voltage constraints are met as this variant requires 4.5V to 5.5V operation.
Selection Notes
Select this part when eight isolated voltage outputs are required with high accuracy and low crosstalk. The H-grade ensures performance across the extended automotive temperature range. Verify that the 4.5V minimum supply voltage aligns with system power rails, as lower voltage variants (L-series) are not suitable for this requirement.
Part Context
This component belongs to the LTC2637 family of octal DACs. The 'H' designation specifies the automotive temperature grade and 4.096V internal reference. The 'MS' indicates the 16-lead MSOP package, while 'HMX' defines the mid-scale reset behavior for external reference configurations.
Replacement Considerations
Direct substitutes within the same family include LTC2637HMI8 variants with different reset behaviors or LTC2637HMX12/10 for higher resolution options. Cross-family replacements require verification of pin compatibility and I2C address configurations.
