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LTC2752BILX#PBF
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Product Detailed Parameters
- Description：IC DAC 16BIT A-OUT 48LQFP
- Series：SoftSpan™
- Mfr：Analog Devices Inc.
- Package：Tray
- Number of Bits：16
- Number of D/A Converters：2
- Settling Time：2µs (Typ)
- Output Type：Current - Unbuffered
- Differential Output：Yes
- Data Interface：SPI
- Reference Type：External
- Voltage - Supply, Analog：2.7V ~ 5.5V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- INL/DNL (LSB)：±2 (Max), ±1 (Max)
- Architecture：Multiplying DAC
- Operating Temperature：-40°C ~ 85°C
- Package / Case：48-LQFP
- Supplier Device Package：48-LQFP (7x7)
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The LTC2752BILX#PBF is a dual 16-bit multiplying digital-to-analog converter (DAC) featuring serial input and current output. It operates from a single 2.7V to 5.5V supply with a maximum supply current of 1µA. The device guarantees monotonicity over temperature and offers six software-selectable or pin-strapped output ranges, including ±10V. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB for the B-grade variant and a settling time of 2µs. It integrates voltage-controlled offset and gain adjustments, power-on reset, and a clear function to zero the outputs.
Feature Summary
- Dual 16-bit resolution with guaranteed monotonicity over temperature
- SoftSpan technology allows programming of six output ranges (up to ±10V) via SPI or hardware pins
- Serial readback of all on-chip registers for verification in one instruction cycle
- Voltage-controlled offset and gain adjustments with high resolution
Applications
- Process control and industrial automation systems
- Automatic test equipment requiring precise multi-channel output
- Data acquisition systems needing high-resolution current sources
Procurement Notes
Verify the operating temperature range corresponds to the 'I' suffix (-40°C to 85°C). Confirm the package type is the 48-lead LQFP. Ensure the specific grade 'B' matches the required INL/DNL performance specifications for the application.
Selection Notes
Select this component when dual independent 16-bit channels are required with flexible output ranging. The SoftSpan feature eliminates external resistor networks for range selection. Verify that the external reference voltage aligns with the desired output span multiples. Consider the 2µs settling time against system speed requirements.
Part Context
This part belongs to the LTC2752 family of SoftSpan DACs. The 'B' designation indicates the performance grade with tighter linearity errors compared to the 'A' grade. The '#PBF' suffix denotes a lead-free finish and RoHS compliance. It is manufactured by Analog Devices, formerly Linear Technology.
Replacement Considerations
The LTC2752A provides similar functionality but with relaxed linearity specifications (±2 LSB INL). For quad-channel applications, consider the LTC2754. For higher resolution, the LTC2756 or LTC2757 series may be appropriate.
