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LTC2636HDE-LMX8#PBF
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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT 14DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：8
- Number of D/A Converters：8
- Settling Time：3.4µs (Typ)
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：SPI
- Reference Type：External, Internal
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- 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 LTC2636HDE-LMX8#PBF is an octal, 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a 4.096V full-scale output with an integrated internal reference and operates on a single 4.5V to 5.5V supply. The device includes double-buffered data latches and resets to mid-scale upon power-up in external reference mode. It communicates via a 3-wire SPI/Microwire interface with clock rates up to 50MHz. Packaged in a 14-lead DFN, it guarantees monotonicity over the automotive temperature range of –40°C to 125°C.
Feature Summary
- Octal 8-Bit Architecture: Eight independent DAC channels with rail-to-rail output buffers.
- Automotive Grade: Guaranteed monotonic operation across –40°C to 125°C temperature range.
- Integrated Reference: Internal 4.096V full-scale reference with ±10ppm/°C drift.
- Power-On Reset: Configurable reset to mid-scale in external reference mode.
Applications
- Automotive systems
- Process control and industrial automation
- Automatic test equipment
Procurement Notes
Verify that the specific suffix LMX8 corresponds to the required mid-scale reset behavior in external reference mode. Confirm the H-grade designation matches the 4.5V minimum supply requirement for your system design.
Selection Notes
Select this part when eight isolated analog outputs are needed in a compact footprint. Ensure the supply voltage remains above 4.5V to support the 4.096V internal reference. Consider the MSOP package if hardware LDAC and CLR pins are required instead of the DFN version.
Part Context
This component belongs to the LTC2636 family of octal DACs. Variants differ by resolution (8, 10, or 12 bits), package type (DFN or MSOP), and temperature grade (C, I, or H). The H-grade specifically supports the wider automotive temperature range.
Replacement Considerations
Public confirmed substitute part numbers only; omit otherwise.
FAQ
What is the full-scale output voltage?
The full-scale output is 4.096V when using the internal reference.
How does the device behave at power-up?
It resets the DAC outputs to mid-scale when operating in external reference mode.
What is the minimum supply voltage?
The minimum supply voltage is 4.5V for the H-grade device.
