LTC2640HTS8-LM10#TRPBF

Overview

The LTC2640HTS8-LM10#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 4.5V to 5.5V supply. The device includes a rail-to-rail output buffer guaranteed monotonic over temperature. It utilizes a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. Key electrical parameters include a typical settling time of 4.2µs at ±1LSB, a maximum integral nonlinearity (INL) of ±1LSB, and a power-down current of 4µA maximum for the H-grade. The part is housed in an 8-lead TSOT-23 package.

Feature Summary

• Integrated 10ppm/°C precision reference with 4.096V full-scale output
• SPI/MICROWIRE compatible 3-wire serial interface supporting up to 50MHz clock
• Rail-to-rail output buffer guaranteed monotonic over temperature
• Power-on reset to mid-scale code

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment
• Optical Networking

Procurement Notes

Verify the specific suffix #TRPBF indicates a 2,500-piece tape and reel packaging configuration as defined in the datasheet ordering information. Confirm that the H-grade designation matches the required -40°C to +125°C operating temperature range for the target application environment.

Selection Notes

Select this component when a 4.096V internal reference is required alongside 10-bit resolution. Ensure the system supply voltage remains within the 4.5V to 5.5V range specified for the H-grade variant. Consider the mid-scale power-on reset behavior if downstream circuitry requires a non-zero initial state upon power-up.

Part Context

This part belongs to the LTC2640 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The 'H' suffix denotes the automotive temperature grade (-40°C to 125°C), while 'LM' specifies the mid-scale power-on reset option and 4.096V full-scale voltage derived from the internal reference.

Replacement Considerations

Direct pin-compatible substitutes within the same family include LTC2640HM10#TRPBF (Zero-scale reset) or LTC2640HM12#TRPBF (12-bit resolution). Verify that the alternative part's power-on reset behavior and linearity specifications meet the design requirements.