LTC2635CMSE-LMX12#PBF

Overview

The LTC2635CMSE-LMX12#PBF is a quad 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc., 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 communicates 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, rail-to-rail output buffers, and guaranteed monotonicity over the commercial temperature range of 0°C to 70°C.

Feature Summary

• Quad 12-bit resolution with integrated 2.5V precision reference
• I²C-compatible serial interface with selectable slave addresses
• Power-on reset configured for mid-scale output in external reference mode
• Rail-to-rail output buffers with low noise performance

Applications

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

Procurement Notes

Verify the specific suffix LMX12 confirms the mid-scale power-on reset behavior for external reference configurations. Confirm the MSE package designation matches the required 10-lead MSOP footprint. Ensure the C grade meets the operational temperature requirements for the target application environment.

Selection Notes

Select this part when four independent 12-bit DAC channels are required in a compact surface-mount package. The LMX suffix is critical if the design mandates a mid-scale output state upon power-up while using an external reference voltage. Compare settling times and noise specifications against other family members if higher speed or lower noise is needed.

Part Context

This component belongs to the LTC2635 family, which includes 8-bit, 10-bit, and 12-bit variants. The CMSE prefix indicates the Commercial temperature grade and MSOP package. Other suffixes like LZ or LMI provide different power-on reset behaviors or internal reference full-scale voltages.

Replacement Considerations

Direct pin-compatible replacements within the same family include LTC2635CMSE-LZ12#PBF for zero-scale reset or LTC2635CMSE-LMI12#PBF for mid-scale reset with internal reference. Verify that the reset configuration and reference mode compatibility match the existing circuit design.