LTC2634CMSE-LZ10#TRPBF

Overview

The LTC2634CMSE-LZ10#TRPBF is a quad 10-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 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. Key electrical specifications include a settling time of 3.8µs at ±1LSB, a maximum integral nonlinearity (INL) error of ±1 LSB, and a power-on reset to zero-scale. It is guaranteed monotonic over the commercial temperature range of 0°C to 70°C.

Feature Summary

• Quad 10-bit DAC architecture with rail-to-rail output buffers
• Integrated 10ppm/°C precision reference providing 2.5V full-scale output
• SPI/MICROWIRE compatible 3-wire serial interface supporting up to 50MHz clock
• Power-on reset circuit configured for zero-scale initialization

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2,500 pieces. Confirm the MSE package designation corresponds to the 10-lead MSOP form factor. Ensure the C-grade temperature rating aligns with the intended operational environment requirements before procurement.

Selection Notes

Select this part when a quad DAC configuration is required with a fixed 2.5V internal reference. The LZ suffix mandates a zero-scale power-on state, which is critical for applications where downstream circuits must remain inactive during startup. Choose the MSE package for space-constrained designs requiring surface-mount assembly.

Part Context

This component belongs to the LTC2634 family, which offers variations in resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and power-on reset behavior. The CMSE variant specifically denotes the commercial temperature grade and MSOP packaging, distinguishing it from QFN-based or automotive-grade alternatives within the same product line.

Replacement Considerations

Direct replacements within the LTC2634 family require matching the resolution, reference voltage, and reset configuration. For example, LTC2634CMSE-LMI10#TRPBF provides mid-scale reset instead of zero-scale. Cross-family substitutes like the LTC2635 offer I2C interfaces but differ in communication protocols.