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LTC2634CMSE-LZ12#PBF
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Product Detailed Parameters
- Description：IC DAC 12BIT V-OUT 10MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：12
- Number of D/A Converters：4
- Settling Time：4.2µs (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)：±1, ±1 (Max)
- Architecture：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：10-MSOP-EP
- Mounting Type：Surface Mount
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Overview
The LTC2634CMSE-LZ12#PBF is a quad 12-bit voltage output digital-to-analog converter (DAC) in a 10-lead MSOP package. It features an integrated precision reference with a full-scale output of 2.5V and a temperature coefficient of 10ppm/°C. The device operates from a single 2.7V to 5.5V supply, draws 0.6mA at 3V, and includes rail-to-rail output buffers. It communicates via a 50MHz SPI-compatible interface and incorporates a power-on reset circuit that defaults outputs to zero-scale.
Feature Summary
- Quad 12-bit resolution with ±2.5 LSB maximum integral nonlinearity error
- Integrated 2.5V full-scale reference with 10ppm/°C drift
- Power-on reset to zero-scale for consistent system initialization
- Ultralow DAC-to-DAC crosstalk of 2.4nV•s
Applications
- Mobile communications
- Process control and industrial automation
- Automatic test equipment
- Portable equipment
- Automotive systems
Procurement Notes
Verify the specific ordering suffix against the manufacturer's documentation to confirm package type, temperature grade, and reset behavior. Ensure the component meets AEC-Q100 automotive qualification requirements if intended for such applications. Cross-reference the datasheet revision to confirm electrical characteristics match the design specifications.
Selection Notes
Select this part when four independent 12-bit channels are required in a compact surface-mount package. The internal 2.5V reference eliminates the need for external components, reducing board space. Verify that the 2.7V minimum supply voltage aligns with the system power rails and that the 0°C to 70°C commercial temperature range satisfies environmental constraints.
Part Context
This component belongs to the LTC2634 family of quad DACs, which offers variations in resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and power-on reset states. The CMSE designation identifies the commercial temperature grade and MSOP packaging, while the LZ12 suffix specifies the 12-bit resolution and zero-scale reset configuration.
Replacement Considerations
Compatible substitutes within the same family include the LTC2634IMSE-LZ12#PBF for extended industrial temperature ranges (-40°C to 85°C) and the LTC2634HSE-LZ12#PBF for automotive-grade performance (-40°C to 125°C). Other variants may differ in reset behavior or reference voltage.
