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LTC2620IUFD#TRPBF
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Product Detailed Parameters
- Description：IC DAC 12BIT V-OUT 20QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Number of Bits：12
- Number of D/A Converters：8
- Settling Time：7µs (Typ)
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：SPI
- Reference Type：External
- Voltage - Supply, Analog：2.5V ~ 5.5V
- Voltage - Supply, Digital：2.5V ~ 5.5V
- INL/DNL (LSB)：±0.75, ±0.5 (Max)
- Architecture：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：20-WFQFN Exposed Pad
- Supplier Device Package：20-QFN (4x5)
- Mounting Type：Surface Mount
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Overview
The LTC2620IUFD#TRPBF is an octal 12-bit rail-to-rail voltage-output digital-to-analog converter (DAC) in a 20-lead 4mm × 5mm QFN package. It operates on a single 2.5V to 5.5V supply and features built-in high-performance output buffers guaranteed monotonic over temperature. The device utilizes a simple SPI/MICROWIRE compatible 3-wire serial interface with clock rates up to 50MHz, including daisychain capability and a hardware CLR function. Power-on reset ensures outputs remain at zero-scale until updated.
Feature Summary
- Octal 12-bit resolution with rail-to-rail voltage outputs
- SPI/MICROWIRE compatible 3-wire serial interface (up to 50MHz)
- Guaranteed 16-bit monotonicity over temperature range
- Low power operation: 250μA per DAC at 3V; individual channel power-down to 1μA max
Applications
- Mobile Communications
- Process Control and Industrial Automation
- Instrumentation
- Automatic Test Equipment
Procurement Notes
Verify the specific ordering suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 'I' grade designation matches the required -40°C to 85°C operating temperature range for the application environment. Ensure the 20-lead QFN footprint aligns with the PCB layout specifications.
Selection Notes
Select this model for applications requiring eight independent analog channels in a compact form factor. The 12-bit resolution suits general-purpose control tasks where board density is critical. Consider the LTC2610 or LTC2600 if higher resolution (14-bit or 16-bit) is necessary, as they share pin compatibility.
Part Context
This component belongs to the LTC2600/LTC2610/LTC2620 family of octal DACs. The LTC2620 variant specifically provides 12-bit resolution, distinguishing it from the 14-bit LTC2610 and 16-bit LTC2600. All variants share identical pinouts and interfaces, allowing for design flexibility across different precision requirements.
Replacement Considerations
Pin-compatible substitutes within the same family include the LTC2600 (16-bit) and LTC2610 (14-bit). These alternatives offer higher resolution while maintaining the same 20-lead QFN package and serial interface protocol.
