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LTC2634IMSE-LMI12#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：-40°C ~ 85°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 LTC2634IMSE-LMI12#PBF is a quad 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a 2.5V full-scale output and operates on a single 2.7V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 85°C temperature range, and low noise characteristics. Communication is handled via a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. This specific variant resets to mid-scale in internal reference mode upon power-up and is housed in a 10-lead MSOP package.
Feature Summary
- Quad 12-bit resolution with integrated 10ppm/°C precision reference
- Rail-to-rail output buffers with ultralow crosstalk (2.4nV•s)
- SPI/MICROWIRE compatible 3-wire serial interface operating up to 50MHz
- Power-on reset to mid-scale in internal reference mode
Applications
- Mobile communications
- Process control and industrial automation
- Automatic test equipment
- Portable equipment
- Automotive applications
Procurement Notes
Verify the component matches the specified 10-lead MSOP package and Industrial temperature grade (-40°C to 85°C). Confirm the ordering suffix indicates lead-free construction and mid-scale power-on reset behavior for internal reference mode. Ensure compatibility with standard surface-mount assembly processes.
Selection Notes
Select this part when four independent 12-bit DAC channels are required with a fixed 2.5V full-scale range. It is suitable for designs needing mid-scale initialization rather than zero-scale. Consider the 50MHz serial interface speed and low power consumption of 0.6mA at 3V for battery-operated systems.
Part Context
This component belongs to the LTC2634 family, which offers various resolutions (8-, 10-, and 12-bit) and full-scale options (2.5V or 4.096V). The IMSE designation specifically identifies the Industrial temperature grade and 10-lead MSOP packaging configuration within the broader product line.
Replacement Considerations
For direct pin-compatible replacements within the same family, consider the LTC2634IMSE-HMI12#PBF for a 4.096V full-scale output or the LTC2634IMSE-LMX12#PBF for external reference operation. Verify that the alternative part's power-on reset behavior aligns with system requirements.
