LTC2635CUD-LMO10#TRPBF

Overview

The LTC2635CUD-LMO10#TRPBF is a quad 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. 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 supply ranging from 2.7V to 5.5V 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 ±1 LSB, rail-to-rail output buffers, and low noise performance of 0.75mVP-P in the 0.1Hz to 200kHz bandwidth. The part is guaranteed monotonic over the commercial temperature range of 0°C to 70°C.

Feature Summary

• Quad 10-bit DACs with integrated 2.5V precision reference (10ppm/°C)
• Power-on reset configured for mid-scale internal reference with high-impedance outputs
• I2C interface with selectable slave addresses via CA0-CA2 pins
• Low power consumption: 0.6mA at 3V supply

Applications

• Mobile communications systems
• Process control and industrial automation
• Power supply margining
• Portable equipment

Procurement Notes

Verify the ordering suffix LMO10 corresponds to the specific power-on reset behavior (mid-scale reset with high-impedance outputs) and 10-bit resolution. Confirm the UD package designation indicates the 16-pin QFN form factor. Ensure the C grade matches the required 0°C to 70°C operating temperature range for the application environment.

Selection Notes

Select this component when a quad DAC configuration is required with tight linearity specifications (±1 LSB INL). The LMO suffix is critical if the design demands that outputs enter a high-impedance state upon power-up while resetting to mid-scale internally. Compare against LTC2635-H variants if a higher 4.096V full-scale output or automotive temperature range (-40°C to 125°C) is needed instead.

Part Context

This part belongs to the LTC2635 family of quad DACs, which also includes 8-bit and 12-bit resolutions. The 'L' suffix denotes the 2.5V full-scale version powered by a 2.7V–5.5V supply, distinct from the 'H' version which offers 4.096V full-scale but requires a 4.5V–5.5V supply. The 'UD' package is a 16-lead 3mm × 3mm QFN, while 'MSE' denotes a 10-lead MSOP option.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided datasheet. Designers should consult Analog Devices marketing for alternative parts with wider operating temperature ranges or different package options.