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LTC2634CUD-LMI10#TRPBF
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Product Detailed Parameters
- Description：IC DAC 10BIT V-OUT 16QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Number of Bits：10
- Number of D/A Converters：4
- Settling Time：3.8µs (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)：±0.2, ±0.5 (Max)
- Architecture：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-QFN (3x3)
- Mounting Type：Surface Mount
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Overview
The LTC2634CUD-LMI10#TRPBF is a quad 10-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 utilizes a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. Key electrical parameters include a settling time of 3.8µs, maximum integral nonlinearity (INL) of ±1 LSB, and a power-on reset to mid-scale in internal reference mode. It is housed in a 16-lead 3mm × 3mm QFN package and supports commercial temperature ranges.
Feature Summary
- Quad 10-bit resolution with rail-to-rail output buffers
- Integrated 10ppm/°C precision reference providing 2.5V full-scale output
- Power-on reset configured to mid-scale in internal reference mode
- SPI/MICROWIRE compatible 3-wire serial interface operating at 50MHz
Applications
- Mobile communications systems
- Process control and industrial automation
- Automatic test equipment
- Portable battery-powered equipment
Procurement Notes
Verify the specific ordering suffix #TRPBF indicates a tape and reel quantity of 2,500 pieces. Confirm the C temperature grade matches the required operational range of 0°C to 70°C. Ensure the LMI configuration aligns with the need for mid-scale power-on reset behavior in internal reference mode.
Selection Notes
Select this part when four independent 10-bit DAC channels are required with low drift. The internal 2.5V reference simplifies design by removing external components. Verify that the 2.7V minimum supply voltage meets system requirements, as higher accuracy grades or H-grade variants may require different supply constraints.
Part Context
This component belongs to the LTC2634 family, which includes 12-bit, 10-bit, and 8-bit variants. The 'C' denotes the commercial temperature grade, while 'UD' specifies the 16-lead QFN package. The 'LMI' suffix defines the 2.5V full-scale voltage and mid-scale reset behavior in internal reference mode.
Replacement Considerations
Direct substitutes within the same family include LTC2634CUD-LMX10#TRPBF (external reference mode reset) or LTC2634CUD-LZ10#TRPBF (zero-scale reset). For different resolutions, consider LTC2634CUD-LMI12#TRPBF or LTC2634CUD-LMI8#TRPBF, ensuring pin compatibility and package match.
