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LTC2635CUD-HZ8#TRPBF
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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT 16QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Number of Bits：8
- Number of D/A Converters：4
- 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：0°C ~ 70°C
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-QFN (3x3)
- Mounting Type：Surface Mount
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Overview
The LTC2635CUD-HZ8#TRPBF is a quad 8-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 from a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 125°C automotive temperature range, and low noise of 0.75mVP-P. Communication is handled via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It incorporates a power-on reset circuit that defaults outputs to zero-scale.
Feature Summary
- Quad 8-Bit Resolution with Integrated 4.096V Reference
- Automotive Temperature Range (–40°C to 125°C)
- Rail-to-Rail Output Buffers with Guaranteed Monotonicity
- I2C Interface with Power-On Reset to Zero-Scale
Applications
- Process Control and Industrial Automation
- Power Supply Margining
- Portable Equipment
Procurement Notes
Verify the specific suffix #TRPBF indicates lead-free construction and tape-and-reel packaging containing 2,500 pieces. Confirm the CUD package designation corresponds to the 16-lead QFN form factor. Ensure the H-grade specification aligns with the required 4.5V to 5.5V supply voltage constraints for the 4.096V full-scale output.
Selection Notes
Select this component when four independent 8-bit DAC channels are required in a compact 16-pin QFN footprint. The H-grade variant is necessary for applications requiring a 4.096V full-scale range and operation within the –40°C to 125°C temperature spectrum. Verify that the system supply voltage remains between 4.5V and 5.5V to meet electrical specifications.
Part Context
This part belongs to the LTC2635 family, which offers 8-, 10-, and 12-bit resolutions. The 'H' suffix denotes the automotive grade with a 4.096V internal reference, while 'L' variants provide 2.5V references. The 'UD' package code specifies the 16-pin QFN housing, distinguishing it from the 10-lead MSOP option.
Replacement Considerations
Direct substitutes include other LTC2635 variants with different resolutions or reference voltages, such as LTC2635CUD-LZ8#TRPBF for 2.5V operation. Cross-model replacements like the LTC2634 require SPI interface compatibility verification.
