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LTC2637IMS-LMX12#PBF
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Product Detailed Parameters
- Description：IC DAC 12BIT V-OUT 16MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：12
- Number of D/A Converters：8
- Settling Time：4.5µs (Typ)
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：I2C
- 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：16-TFSOP (0.118", 3.00mm Width)
- Supplier Device Package：16-MSOP
- Mounting Type：Surface Mount
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Overview
The LTC2637IMS-LMX12#PBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features a selectable internal or external reference, with the 'L' suffix indicating a 2.5V full-scale output and operation from a single 2.7V to 5.5V supply. The device incorporates double-buffered data latches and guarantees monotonicity over the –40°C to 85°C industrial temperature range. Communication occurs via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity error of ±2.5 LSB, low noise performance, and ultralow crosstalk between DAC channels.
Feature Summary
- Octal 12-bit resolution with rail-to-rail output buffers
- Selectable internal (2.5V) or external reference input
- Power-on reset configured to mid-scale in external reference mode
- Ultralow DAC-to-DAC crosstalk (<3nV•s typical)
Applications
- Mobile communications systems
- Process control and industrial automation
- Automatic test equipment
- Portable battery-powered equipment
Procurement Notes
Verify the specific ordering suffixes against the manufacturer's documentation to ensure correct package type, temperature grade, and power-on reset behavior. Confirm that the selected variant matches the required supply voltage range and reference configuration for the target application design.
Selection Notes
Select this component when an octal DAC configuration is required with precise mid-scale initialization upon power-up using an external reference source. Ensure the system supply voltage remains within the 2.7V to 5.5V range specified for the 'L' grade devices to maintain guaranteed performance parameters.
Part Context
This part belongs to the LTC2637 family of octal DACs available in 14-lead DFN and 16-lead MSOP packages. Variants differ by resolution (8/10/12-bit), full-scale voltage (2.5V or 4.096V), and power-on reset state (zero-scale or mid-scale). The IMS designation indicates the 16-lead MSOP package and industrial temperature rating.
Replacement Considerations
Direct replacements within the same family include LTC2637IMS-LMI12#PBF (internal reference reset) or LTC2637IMS-LZ12#PBF (zero-scale reset). Cross-family alternatives require verification of pin compatibility and interface standards.
