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LTC2634IUD-LMX8#PBF
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Product Detailed Parameters
- Description：IC DAC 8BIT V-OUT 16QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：8
- Number of D/A Converters：4
- Settling Time：3.3µs (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 ~ 85°C
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-QFN (3x3)
- Mounting Type：Surface Mount
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Overview
The LTC2634IUD-LMX8#PBF 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 2.5V and operates on a single 2.7V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the industrial temperature range of –40°C to 85°C, and communicates via a 50MHz SPI/MICROWIRE compatible interface. Upon power-up, the outputs reset to mid-scale in external reference mode.
Feature Summary
- Quad 8-bit DACs with integrated 10ppm/°C precision reference
- Rail-to-rail buffered outputs with ultralow crosstalk (2.4nV•s)
- SPI/MICROWIRE compatible 3-wire serial interface up to 50MHz
- Power-on reset to mid-scale in external reference mode
Applications
- Mobile communications
- Process control and industrial automation
- Automatic test equipment
- Portable equipment
- Automotive applications
Procurement Notes
Verify the specific ordering suffixes against official documentation to confirm package type, temperature grade, and reset behavior. Ensure compatibility with system requirements for supply voltage and serial interface timing before procurement.
Selection Notes
Select this part for applications requiring four independent 8-bit channels with low power consumption and high accuracy. The L suffix indicates a 2.5V full-scale internal reference, while the MX suffix specifies mid-scale reset in external reference mode. Verify that the 2.7V minimum supply voltage meets system constraints.
Part Context
This component belongs to the LTC2634 family, which offers 12-, 10-, and 8-bit resolutions in 16-lead QFN and 10-lead MSOP packages. The IUD variant specifically denotes the Industrial temperature grade (-40°C to 85°C) and the 16-lead QFN package format.
Replacement Considerations
Direct replacements within the same family include other resolution variants like LTC2634IUD-LMX10 or LTC2634IUD-LMX12, provided pinout and software compatibility are maintained. Cross-family alternatives require verification of interface protocols and reference configurations.
