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LTC2637HDE-HZ8#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 ~ 125°C
- Package / Case：14-WFDFN Exposed Pad
- Supplier Device Package：14-DFN (4x3)
- Mounting Type：Surface Mount
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Overview
The LTC2637HDE-HZ8#TRPBF is an octal 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a 4.096V full-scale output 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 rail-to-rail output buffers, double-buffered data latches, and a power-on reset circuit configured for zero-scale initialization. The component is housed in a 14-lead DFN package.
Feature Summary
- Octal architecture with 8 independent 8-bit DAC channels
- Integrated 4.096V precision reference with 10ppm/°C drift
- Rail-to-rail buffered outputs guaranteed monotonic over –40°C to 125°C
- I2C interface with selectable slave addresses via CAO pin
Applications
- Process control and industrial automation systems
- Portable battery-powered equipment
- Automotive electronic modules
- Optical networking signal generation
Procurement Notes
Verify the specific ordering suffix #TRPBF corresponds to the tape and reel packaging configuration required for automated assembly processes. Confirm that the H-grade temperature rating (-40°C to 125°C) aligns with the thermal requirements of the target application environment before finalizing procurement orders.
Selection Notes
Select this part when eight low-cost, moderate-resolution voltage outputs are required within a compact footprint. The H-grade variant is necessary for automotive or high-temperature industrial environments. Ensure the system supply voltage remains between 4.5V and 5.5V to utilize the internal 4.096V reference correctly without exceeding absolute maximum ratings.
Part Context
This component belongs to the LTC2637 family, which offers 8-, 10-, and 12-bit resolution options alongside L-grade variants for lower voltage operation. The DE designation identifies the 14-lead plastic DFN package, while the H suffix denotes the extended automotive temperature range. The Z suffix specifies the power-on reset behavior to zero-scale.
Replacement Considerations
LTC2637HDE-LZ8#TRPBF: Identical electrical performance and package but utilizes the L-grade internal reference with a 2.5V full-scale output and a wider 2.7V to 5.5V supply range.
