LTC2637CDE-HZ10#TRPBF

Overview

The LTC2637CDE-HZ10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features a 14-lead DFN package and operates within a supply voltage range of 4.5V to 5.5V. The device integrates a precision reference with a full-scale output of 4.096V and a temperature coefficient of ±10ppm/°C. It 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 ±1LSB, a settling time of 4.3µs at ±1LSB, and rail-to-rail buffered outputs guaranteed monotonic over the operating temperature range.

Feature Summary

• Octal architecture providing eight independent 10-bit DAC channels in a compact 14-lead DFN package
• Integrated high-accuracy reference delivering a 4.096V full-scale output with ±10ppm/°C drift
• Ultralow crosstalk between DAC channels (<3nV•s) ensuring signal integrity across multiple outputs
• Power-on reset circuit configured to initialize all outputs to zero-scale upon power-up

Applications

• Process control and industrial automation systems requiring multi-channel signal generation
• Automatic test equipment utilizing precise voltage references for calibration
• Portable battery-powered instrumentation benefiting from low power consumption
• Automotive electronic modules demanding reliable analog signal conversion

Procurement Notes

Verify the specific ordering suffix #TRPBF confirms the tape and reel packaging format containing 2500 units. Confirm the C-grade designation aligns with commercial temperature requirements (0°C to 70°C). Ensure the DE package code corresponds to the 14-lead DFN footprint required by the PCB layout. Cross-reference the H suffix to validate the 4.096V internal reference configuration against system voltage constraints.

Selection Notes

Select this component when eight isolated voltage outputs are necessary within a single integrated circuit. The 4.096V full-scale range suits applications interfacing with 5V logic or ADCs requiring higher dynamic range than 2.5V options provide. Verify that the 4.5V minimum supply voltage meets the system's power budget, as lower voltage variants like the LTC2637-L series operate down to 2.7V but offer reduced output swing.

Part Context

This part belongs to the LTC2637 family of octal DACs, which also includes 8-bit and 12-bit resolution variants. The 'H' suffix indicates the 4.096V internal reference version, distinct from the 'L' version offering 2.5V. The 'C' grade specifies commercial temperature operation, while 'I' and 'H' grades extend performance to industrial and automotive ranges respectively. All variants share identical pinouts and I2C communication protocols.

Replacement Considerations

Direct substitutes include other LTC2637 variants with matching resolution and reference voltage, such as LTC2637IDE-HZ10#PBF for tube packaging or LTC2637IMS-HZ10#TRPBF for MSOP packaging. Ensure replacement parts maintain the same power-on reset behavior and I2C address configurations defined by CA pins.