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LTC2637IDE-HMX8#TRPBF
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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT 14DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- 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 ~ 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-HMX8#TRPBF is an octal 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. 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 utilizes a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±0.5 LSB, a settling time of 3.9µs at ±1 LSB, and a power-on reset function configured 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 DAC-to-DAC crosstalk specification (<3nV•s)
- Double-buffered data latches for glitch-free updates
Applications
- Process control and industrial automation systems
- Automatic test equipment requiring multi-channel signal generation
- Portable battery-powered instrumentation
- Optical networking components
Procurement Notes
Verify the H-grade automotive temperature rating (-40°C to 125°C) and the MX suffix configuration for power-on reset behavior. Confirm the MSOP-16 package type matches the target PCB footprint. Ensure the I2C address pins are correctly terminated to avoid bus conflicts in multi-device designs.
Selection Notes
Select this part when eight isolated voltage outputs are required within a compact footprint. The H-grade variant supports higher supply voltages up to 5.5V compared to the L-grade. Consider the external reference mode capability if system-level calibration or specific voltage scaling is necessary beyond the internal 4.096V limit.
Part Context
This component belongs to the LTC2637 family, which includes 12-bit, 10-bit, and 8-bit variants. The 'I' designation indicates the industrial temperature range, while 'H' specifies the extended automotive grade. The '#TRPBF' suffix denotes tape and reel packaging with lead-free composition.
Replacement Considerations
Direct substitutes within the same family include LTC2637IMS-HMX8#TRPBF (identical specs, different manufacturer source code potentially) or other resolution variants like LTC2637IMS-HMX10#TRPBF if higher precision is acceptable.
