LTC2635CMSE-LMO8#TRPBF

Overview

The LTC2635CMSE-LMO8#TRPBF is a quad 8-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 a temperature coefficient of 10ppm/°C. The device operates on a single 2.7V to 5.5V supply and communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±0.5 LSB, a settling time of 3.5µs at ±1 LSB for 8-bit resolution, and a supply current of 0.6mA at 3V. The part is housed in a 10-lead MSOP package.

Feature Summary

• Quad 8-bit DAC architecture with rail-to-rail output buffers
• Integrated 2.5V precision reference with 10ppm/°C drift
• I²C-compatible serial interface with selectable slave addresses
• Power-on reset to high-impedance state (LMO option)
• Guaranteed monotonic operation over the operating temperature range

Applications

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

Procurement Notes

Verify the specific ordering suffix LMO, which indicates a power-on reset to mid-scale in internal reference mode with DAC outputs in a high-impedance state. Confirm the MSE package designation corresponds to the 10-lead MSOP form factor. Ensure the C grade matches the required commercial temperature range of 0°C to 70°C. Cross-reference the datasheet Rev D specifications for accurate timing and DC performance parameters during integration.

Selection Notes

Select this component when a quad-channel DAC with I²C connectivity and low pin count is required. The LMO variant is suitable for applications necessitating a safe high-impedance state upon power-up. The 8-bit resolution offers a balance between cost and performance for general-purpose analog control. Verify that the system supply voltage falls within the 2.7V to 5.5V range compatible with the -L version of the device.

Part Context

This part belongs to the LTC2635 family, which includes 12-, 10-, and 8-bit variants. The CMSE designation identifies the Commercial temperature grade (0°C to 70°C) and the 10-lead MSOP package. The LMO suffix distinguishes it from other reset options like LZ (Zero-Scale) or LMI (Mid-Scale). The #TRPBF suffix indicates a lead-free tape and reel packaging configuration.

Replacement Considerations

Direct replacements within the same family include LTC2635CMSE-LZ8#TRPBF (Zero-Scale reset) or LTC2635CMSE-LMI8#TRPBF (Mid-Scale reset). For external reference applications, consider the LTC2635CMSE-LMX8#TRPBF variant. Ensure pin compatibility remains consistent across the MSOP package versions.