LTC2640HTS8-HM10#TRPBF

Overview

The LTC2640HTS8-HM10#TRPBF is a single-channel, 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a full-scale output of 4.096V and operates on a single supply voltage ranging from 4.5V to 5.5V. The device includes a rail-to-rail output buffer guaranteed monotonic over temperature. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. Key specifications include a typical settling time of 4.2µs at ±1LSB for 10-bit resolution, a maximum integral nonlinearity (INL) error of ±1LSB, and a power-down current of 4µA maximum in the H-grade variant.

Feature Summary

• Integrated 10ppm/°C precision reference yielding a 4.096V full-scale output
• 10-bit resolution with ±1LSB maximum INL error and guaranteed monotonic operation
• SPI/MICROWIRE compatible 3-wire serial interface supporting clock rates up to 50MHz
• Power-on reset to mid-scale configuration with low power consumption

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates a 2,500-piece tape and reel packaging format as defined in the datasheet ordering information. Confirm that the H-temperature grade meets the required operating range of –40°C to 125°C for the target application environment. Ensure supply voltage sequencing adheres to absolute maximum ratings during power-up.

Selection Notes

Select this part when a 4.096V internal reference is required without external components. The HM suffix denotes a mid-scale power-on reset, suitable for applications where downstream circuits must remain inactive or neutral during initialization. Compare against the HZ variant if a zero-scale reset is preferred. Verify that the 4.5V minimum supply voltage aligns with the system power architecture.

Part Context

This component belongs to the LTC2640 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The HTS8 package identifies it as an automotive-grade (H) device in an 8-lead TSOT-23 form factor. The HM designation specifies the mid-scale reset behavior, while the 10 indicates the 10-bit resolution level within the product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. Engineering evaluation is required for any cross-referencing to ensure compatibility with the 3-wire serial interface timing and voltage levels.