LTC2637IDE-HZ10#TRPBF

Overview

The LTC2637IDE-HZ10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 4.096V and operates on a single 4.5V to 5.5V supply. The device utilizes a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity error of ±1 LSB, a settling time of 4.3µs at ±1 LSB, and rail-to-rail buffered outputs guaranteed monotonic over the –40°C to 85°C temperature range.

Feature Summary

• Octal architecture with 10-bit resolution and 4.096V full-scale internal reference
• I2C-compatible serial interface with selectable slave addresses via CA pins
• Rail-to-rail output buffers with ultralow DAC-to-DAC crosstalk (<3nV•s)
• Power-on reset to zero-scale in internal reference mode

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging containing 2500 units. Confirm the 'I' grade designation corresponds to the industrial temperature range of –40°C to 85°C. Ensure the 'H' suffix matches the required 4.5V to 5.5V supply voltage operation for the 4.096V full-scale output configuration.

Selection Notes

Select this part when eight independent voltage outputs are required within a compact footprint. The H-grade variant is necessary for applications requiring a 4.096V full-scale range, necessitating a minimum 4.5V supply. The I-grade temperature rating suits environments exceeding commercial limits but not requiring the extended automotive range. Verify I2C bus speed requirements against the 400kHz fast-mode capability.

Part Context

This component belongs to the LTC2637 family, which includes 12-, 10-, and 8-bit variants. The IDE package denotes a 14-lead DFN form factor. Other family members offer different resolutions or power-on reset behaviors, such as mid-scale initialization, providing flexibility for various system startup requirements without external components.

Replacement Considerations

Direct substitutes within the same family include LTC2637IDE-HZ12#TRPBF (12-bit) and LTC2637IDE-HZ8#TRPBF (8-bit). These share identical pinouts and interfaces but differ in resolution and linearity specifications.