LTC2636HMS-HZ10#PBF

Overview

The LTC2636HMS-HZ10#PBF is an octal, 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated 4.096V full-scale reference with a temperature coefficient of ±10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V and utilizes a 3-wire SPI/MICROWIRE-compatible serial interface with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB, a settling time of 4.3µs at 5V, and a typical supply current of 1.1mA. The unit is housed in a 16-lead MSOP package and includes power-on reset functionality that initializes outputs to zero-scale.

Feature Summary

• Octal architecture providing eight independent 10-bit DAC channels in a single package
• Integrated high-accuracy internal reference yielding a 4.096V full-scale output range
• Rail-to-rail output buffers guaranteed monotonic over the –40°C to 125°C automotive temperature range
• Power-on reset circuit configured to initialize all DAC outputs to zero-scale

Applications

• Automotive systems requiring wide operating temperature ranges
• Process control and industrial automation equipment
• Portable battery-powered instrumentation
• Optical networking signal generation

Procurement Notes

Verify the specific suffix configuration against the datasheet ordering guide to ensure correct resolution, reset behavior, and package type. Confirm that the application supply voltage remains within the 4.5V to 5.5V range required for the H-grade variant. Ensure proper thermal management for the MSOP package if driving significant load currents.

Selection Notes

Select this part when eight isolated analog outputs are required with minimal crosstalk (<2.4nV•s). The H-grade designation indicates suitability for automotive environments up to 125°C. Choose the HZ suffix specifically if a zero-scale initialization upon power-up is necessary for system safety or sequencing requirements.

Part Context

This component belongs to the LTC2636 family of octal DACs, which also offers 8-bit and 12-bit resolutions. The 'H' grade distinguishes it from commercial (C) and industrial (I) grades by supporting extended temperatures up to 125°C. The 'MS' suffix denotes the 16-lead MSOP package, while 'DE' would indicate the 14-lead DFN option.

Replacement Considerations

Direct pin-compatible replacements within the same family include LTC2636HMS-HZ12#PBF (12-bit) and LTC2636HMS-HZ8#PBF (8-bit). For different package types, the LTC2636HDE-HZ10#PBF provides identical electrical performance in a 14-lead DFN footprint.