LTC2635CMSE-LMO8#PBF

Overview

The LTC2635CMSE-LMO8#PBF is a quad 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in a 10-lead MSOP package. 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 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical characteristics include rail-to-rail output buffers, guaranteed monotonicity over the operating temperature range, and a maximum integral nonlinearity error of ±0.5 LSB. Power consumption is low at 0.6mA at 3V.

Feature Summary

• Quad 8-bit DACs with integrated 2.5V precision reference (10ppm/°C drift)
• I2C-compatible serial interface with selectable slave addresses via CA0-CA2 pins
• Power-on reset to high-impedance state for safe startup
• Rail-to-rail output buffers with ultralow crosstalk (3nV•s)

Applications

• Mobile communications systems
• Process control and industrial automation
• Portable equipment requiring low power
• Automotive electronics

Procurement Notes

Verify the specific ordering suffix LMO8#PBF against the manufacturer's current documentation to confirm the package type, temperature grade, and power-on reset behavior. Ensure compatibility with the required I2C bus speed and supply voltage range before procurement.

Selection Notes

Select this component when a quad-channel, low-resolution DAC with an internal reference is needed. The LMO suffix indicates a specific power-on reset behavior resulting in a high-impedance state, which differs from other reset options like zero-scale or mid-scale. Verify that the 8-bit resolution meets the application requirements compared to the 10-bit or 12-bit variants available in the family.

Part Context

This part belongs to the LTC2635 family of quad DACs, which also includes 10-bit and 12-bit resolutions. The 'L' designation indicates a 2.5V full-scale internal reference, while 'MSE' specifies the 10-lead MSOP package. The 'C' denotes the commercial temperature range (0°C to 70°C). Other variants exist with different reset behaviors and automotive temperature grades.

Replacement Considerations

Direct replacements within the same family include LTC2635CMSE-LZ8#PBF (zero-scale reset) or LTC2635CMSE-LMI8#PBF (mid-scale reset). For higher resolution, consider LTC2635CMSE-LMO10#PBF or LTC2635CMSE-LMO12#PBF. Ensure the replacement matches the required power-on reset state and package dimensions.