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LTC2637IDE-HMX12#TRPBF
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Product Detailed Parameters
- Description：IC DAC 12BIT V-OUT 14DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- 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：-40°C ~ 85°C
- Package / Case：14-WFDFN Exposed Pad
- Supplier Device Package：14-DFN (4x3)
- Mounting Type：Surface Mount
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Overview
The LTC2637IDE-HMX12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 4.096V and operates on a single 4.5V to 5.5V supply. The device communicates via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It includes double-buffered data latches, rail-to-rail output buffers guaranteed monotonic over the temperature range, and a power-on reset circuit configured to reset to mid-scale in external reference mode.
Feature Summary
- Octal architecture with 12-bit resolution and 4.096V full-scale output
- Integrated 10ppm/°C precision reference with selectable internal or external operation
- I2C-compatible serial interface with double-buffered data latches
- 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
- Optical networking
Procurement Notes
Verify the specific ordering suffix HMX12#TRPBF against official documentation to confirm the mid-scale reset configuration in external reference mode and tape-and-reel packaging quantity. Ensure the supply voltage range meets the 4.5V to 5.5V requirement for the H-grade part.
Selection Notes
Select this component when eight independent 12-bit voltage outputs are required with low crosstalk and high accuracy. The H-grade variant is suitable for applications requiring a 4.096V full-scale range. Consider the MSOP-16 package for surface-mount assembly and verify I2C address pin configurations (CA0, CA1, CA2) if multiple devices are used on the same bus.
Part Context
This part belongs to the LTC2637 family of octal DACs, available in 8-, 10-, and 12-bit resolutions. The 'H' designation indicates automotive temperature grade (-40°C to 125°C) and 4.096V full-scale output. The 'MS' suffix denotes the 16-lead MSOP package, while 'DE' would indicate the 14-lead DFN package.
Replacement Considerations
Direct substitutes within the same family include LTC2637IDE-HMI12#TRPBF (mid-scale reset in internal reference mode) and LTC2637IDE-HZ12#TRPBF (zero-scale reset). Cross-package equivalents like LTC2637IDE-HMX12#PBF differ only in reel versus tube packaging.
