LTC2637HMS-HZ12#TRPBF

Overview

The LTC2637HMS-HZ12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a 4.096V full-scale output with a 10ppm/°C temperature coefficient. The device operates on a single 4.5V to 5.5V supply and utilizes 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 ±2.5 LSB, a settling time of 5µs at ±1LSB, and ultralow DAC-to-DAC crosstalk below 3nV•s. The unit is housed in a 16-lead MSOP package.

Feature Summary

• Octal architecture with 8 independent 12-bit channels
• Integrated 4.096V precision reference with 10ppm/°C drift
• Rail-to-rail buffered outputs guaranteed monotonic over –40°C to 125°C
• I2C interface with selectable power-on reset to zero-scale or mid-scale

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics
• Optical networking devices

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel quantity of 2500 pieces. Confirm that the H-grade designation aligns with the required automotive temperature range of –40°C to 125°C for the target application environment.

Selection Notes

Select this part when eight simultaneous high-resolution analog outputs are required within a compact footprint. The H-grade variant is necessary for applications exceeding 85°C. Ensure the system supply voltage remains between 4.5V and 5.5V to support the internal 4.096V reference generation.

Part Context

This component belongs to the LTC2637 family, which includes L-grade (2.5V FSR) and C/I-grade variants. The H-grade specifically denotes the automotive temperature rating and higher supply voltage requirement. The MS package identifies the 16-lead plastic small-outline package format.

Replacement Considerations

Direct pin-compatible substitutes within the same family include LTC2637HMS-HZ10#TRPBF (10-bit) and LTC2637HMS-HZ8#TRPBF (8-bit). For different resolution requirements, verify register compatibility as bit-depth changes affect data word structure.