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LTC2666IUH-16#TRPBF
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Product Detailed Parameters
- Description：IC DAC 16BIT V-OUT 32QFN
- Series：SoftSpan™
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Number of Bits：16
- Number of D/A Converters：8
- Settling Time：20µs (Typ)
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：SPI
- Reference Type：External, Internal
- Voltage - Supply, Analog：±4.5V ~ 15.75V
- Voltage - Supply, Digital：5V
- INL/DNL (LSB)：±2.2, ±0.2
- Architecture：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：32-WFQFN Exposed Pad
- Supplier Device Package：32-QFN (5x5)
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The LTC2666IUH-16#TRPBF is an octal, 16-bit digital-to-analog converter (DAC) featuring SoftSpan technology for independently programmable output ranges up to ±10V. It integrates a precision reference with a maximum temperature coefficient of 10ppm/°C and rail-to-rail output buffers capable of driving ±10mA. The device operates on analog supplies from ±4.5V to ±15.75V and includes an 8:1 analog multiplexer, A/B toggle capability, and a 3-wire SPI interface supporting clock rates up to 50MHz. This specific part number denotes the Industrial temperature grade (-40°C to 85°C) packaged in a 32-lead QFN and supplied in tape and reel format.
Feature Summary
- Octal 16-Bit Resolution with Independently Programmable Output Ranges (0V to 5V, 0V to 10V, ±2.5V, ±5V, ±10V)
- Integrated Precision Reference with Max 10ppm/°C Temperature Coefficient
- Rail-to-Rail Output Buffers Driving ±10mA with Guaranteed Monotonicity
- Industrial Temperature Grade (-40°C to 85°C) in 32-Lead QFN Package
Applications
- Optical Networking Systems
- Precision Instrumentation
- Data Acquisition Systems
- Automatic Test Equipment
- Process Control and Industrial Automation
Procurement Notes
Verify that the ordering suffix #TRPBF corresponds to the Tape and Reel packaging configuration containing 2500 pieces per reel. Confirm the middle letter 'I' indicates the Industrial temperature range specification of -40°C to 85°C. Ensure the final digit '16' matches the required 16-bit resolution requirement for the design.
Selection Notes
Select this component when eight independent channels with high accuracy are required. The SoftSpan feature allows different voltage spans per channel, eliminating external scaling circuitry. Verify that the system logic levels support the 1.71V to 5V IOVCC range for the SPI interface. Consider the thermal performance given the 34°C/W junction-to-ambient thermal resistance in the QFN package.
Part Context
This part belongs to the LTC2666 family of octal DACs. The 'UH' designation specifies the 32-lead (5mm × 5mm) Plastic QFN package. The '#PBF' suffix indicates a lead-free finish. The 'TR' suffix specifically identifies the Tape and Reel shipping method, distinguishing it from the Tube packaging used in the standard LTC2666IUH-16#PBF variant.
Replacement Considerations
LTC2666HUH-16#TRPBF offers the same electrical specifications but supports an extended Automotive temperature range of -40°C to 125°C. LTC2666CUH-16#TRPBF provides identical functionality within the Commercial temperature range of 0°C to 70°C.
