LTC2634IMSE-HMI12#PBF

Overview

The LTC2634IMSE-HMI12#PBF is a quad 12-bit voltage output digital-to-analog converter (DAC) in a 10-lead MSOP package. It features an integrated precision reference providing a 4.096V full-scale output, operating from a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers and guarantees monotonicity over the –40°C to 125°C temperature range. Communication occurs via a 50MHz SPI/MICROWIRE compatible 3-wire serial interface. Upon power-up, the outputs reset to mid-scale (2.048V). Key electrical specifications include a maximum integral nonlinearity of ±2.5 LSB, a settling time of 4.8µs at 5V, and a typical supply current of 0.7mA.

Feature Summary

• Quad 12-bit resolution with integrated 4.096V precision reference
• Rail-to-rail output buffers with guaranteed monotonicity
• SPI/MICROWIRE compatible 3-wire serial interface up to 50MHz
• Power-on reset to mid-scale in internal reference mode

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems

Procurement Notes

Verify the specific ordering suffix HMI12#PBF against official Analog Devices documentation to confirm the 10-lead MSOP package, 12-bit resolution, 4.096V full-scale range, and mid-scale power-on reset behavior. Ensure the automotive temperature grade (H-grade) requirements are met for the intended operating environment.

Selection Notes

Select this component when a quad-channel DAC with high accuracy and low crosstalk is required in a compact surface-mount package. The H-grade variant supports extended temperatures up to 125°C. Verify that the system supply voltage remains within the 4.5V to 5.5V range required for the 4.096V full-scale configuration.

Part Context

This part belongs to the LTC2634 family of quad DACs available in 12-, 10-, and 8-bit resolutions. The IMSE designation indicates the Industrial temperature grade (-40°C to 85°C) combined with the MSE package; however, the 'H' suffix in the model number specifies the Automotive temperature grade (-40°C to 125°C). The family shares identical pinouts and functional interfaces across variants.

Replacement Considerations

Direct substitutes within the same family include LTC2634IMSE-HMX12#PBF (external reference reset) or LTC2634IMSE-HZ12#PBF (zero-scale reset). For lower resolution needs, consider LTC2634IMSE-HMI10#PBF or LTC2634IMSE-HMI8#PBF.