LTC2637HDE-HMX10#TRPBF

Overview

The LTC2637HDE-HMX10#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 includes rail-to-rail output buffers guaranteed monotonic over the –40°C to 125°C temperature range. Communication occurs via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. This specific part number utilizes a 14-lead DFN package and incorporates a power-on reset circuit configured to initialize outputs to mid-scale when using the internal reference.

Feature Summary

• Octal architecture with 10-bit resolution and rail-to-rail buffered outputs
• Integrated 4.096V precision reference with ±10ppm/°C drift
• I2C-compatible serial interface with selectable slave addresses
• Power-on reset to mid-scale in internal reference mode

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable instrumentation
• Automotive electronics
• Optical networking devices

Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the DE suffix corresponds to the 14-lead DFN package type. Ensure the H grade matches the required –40°C to 125°C operating temperature range for the application environment.

Selection Notes

Select this component when eight independent DAC channels are required in a compact footprint. The H-grade variant supports higher supply voltages (4.5V–5.5V) compared to the L-grade. Choose the MX power-on reset option if mid-scale initialization is preferred during external reference operation or internal reference startup.

Part Context

This part belongs to the LTC2637 family of octal DACs available in 8-, 10-, and 12-bit resolutions. The H suffix denotes the 4.096V full-scale internal reference configuration. The DE suffix identifies the 14-lead plastic DFN package. Other variants include MSOP packages and different temperature grades such as C and I.

Replacement Considerations

LTC2637HDE-HMI10#TRPBF: Identical electrical specifications but resets to mid-scale in internal reference mode upon power-up.