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LTC2753IUK-14#TRPBF
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Product Detailed Parameters
- Description：IC DAC 14BIT A-OUT 48QFN
- Series：SoftSpan™
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Number of Bits：14
- Number of D/A Converters：2
- Settling Time：2µs (Typ)
- Output Type：Current - Unbuffered
- Differential Output：Yes
- Data Interface：Parallel
- Reference Type：External
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- INL/DNL (LSB)：±1 (Max), ±1 (Max)
- Architecture：Multiplying DAC
- Operating Temperature：-40°C ~ 85°C
- Package / Case：48-WFQFN Exposed Pad
- Supplier Device Package：48-QFN (7x7)
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The LTC2753IUK-14#TRPBF is a dual-channel, 14-bit multiplying digital-to-analog converter (DAC) with parallel I/O. It operates from a single 2.7V to 5.5V supply and features SoftSpan technology for six programmable output ranges: two unipolar (0V to 5V, 0V to 10V) and four bipolar (±2.5V, ±5V, ±10V, –2.5V to 7.5V). The device guarantees monotonicity over temperature and includes a bidirectional interface for register readback. Key electrical specifications include a settling time of 2µs to ±1 LSB, a maximum gain error of ±2 LSB, and a typical supply current of 0.5µA. It is housed in a 48-lead 7mm × 7mm QFN package.
Feature Summary
- Dual 14-bit resolution with guaranteed monotonicity over the full operating temperature range
- SoftSpan architecture providing six software-programmable output ranges via parallel interface
- Bidirectional parallel I/O allowing readback of all internal registers
- Low power consumption with 0.5µA typical supply current and asynchronous CLR pin
Applications
- Process control and industrial automation systems
- Automatic test equipment requiring precise voltage generation
- Data acquisition systems needing high-resolution analog outputs
Procurement Notes
Verify that the specific part number corresponds to the Industrial temperature grade (-40°C to +85°C) and the Tape & Reel packaging format indicated by the #TRPBF suffix. Confirm compatibility with the required output range configuration before integration.
Selection Notes
Select this model when 14-bit resolution is sufficient for the application, offering a balance between performance and cost compared to the 16-bit variants. Ensure the design supports the required parallel interface timing and provides external reference circuitry for the desired SoftSpan output ranges.
Part Context
This component belongs to the LTC2753 family of SoftSpan DACs, which also includes 12-bit and 16-bit versions. The 'I' designation indicates an industrial temperature range, while the '14' specifies the 14-bit resolution variant within the dual-channel current-output series.
Replacement Considerations
Direct functional replacements within the same package and specification family include LTC2753CUK-14#TRPBF (Commercial grade) and LTC2753IUK-12#TRPBF or LTC2753IUK-16#TRPBF (Industrial grade, different resolutions). Verify pinout and register compatibility when substituting.
