LTC2627CDE#TRPBF

Overview

The LTC2627CDE#TRPBF is a dual 12-bit rail-to-rail voltage output digital-to-analog converter (DAC) from Analog Devices. It operates on a single supply voltage ranging from 2.7V to 5.5V and features built-in high-performance output buffers. The device utilizes a 2-wire I²C compatible serial interface, supporting both standard mode (100kHz) and fast mode (400kHz). Key electrical specifications include a differential nonlinearity (DNL) of ±0.5 LSB, an integral nonlinearity (INL) of ±1.5 LSB, and a settling time of 7µs for 12-bit accuracy. Power consumption is 260µA per DAC at 3V, with a maximum power-down current of 1µA.

Feature Summary

• Dual 12-bit resolution with guaranteed monotonicity over temperature
• I²C serial interface with 27 selectable addresses and asynchronous LDAC update pin
• Rail-to-rail output drive capability with ±15mA minimum sourcing/sinking current
• Power-on reset options: Zero scale for standard version, Mid-scale for -1 suffix version

Applications

• Mobile communications systems
• Process control and industrial automation
• Instrumentation equipment
• Automatic test equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation. The '#TRPBF' suffix indicates a tape and reel packaging format with lead-free finish. Confirm that the base model 'LTC2627' corresponds to the zero-scale power-on reset variant, whereas the '-1' variant resets to mid-scale. Ensure compatibility with the required operating temperature range for the selected grade.

Selection Notes

Select the LTC2627CDE#TRPBF for applications requiring 12-bit precision in a compact 12-lead DFN package. Choose this part over the -1 suffix variant if the system requires outputs to start at zero scale upon power-up rather than mid-scale. Verify that the I²C bus capacitance does not exceed limits for the desired clock speed, as active pull-ups may be necessary for fast mode operation above 200pF.

Part Context

This component belongs to the LTC2607/LTC2617/LTC2627 family of pin-compatible dual DACs. The family offers 16-bit (LTC2607), 14-bit (LTC2617), and 12-bit (LTC2627) resolutions. All variants share the same 12-lead (4mm × 3mm) plastic DFN package footprint, allowing for design flexibility across different resolution requirements without changing the PCB layout.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.