LTC2626IDD#TRPBF

Overview

The LTC2626IDD#TRPBF is a single-channel, 12-bit rail-to-rail voltage output digital-to-analog converter (DAC) from Analog Devices. It operates on a 2.7V to 5.5V supply and features a built-in high-performance output buffer guaranteed monotonic over temperature. The device utilizes a 2-wire I2C compatible serial interface supporting standard (100kHz) and fast (400kHz) modes, along with an asynchronous LDAC update pin. It incorporates a power-on reset circuit that defaults outputs to zero scale. Packaged in a compact 3mm × 3mm 10-lead DFN, it draws 270µA at 3V and supports power-down currents as low as 1µA.

Feature Summary

• 12-bit resolution with guaranteed monotonicity over the full operating temperature range
• Rail-to-rail voltage output with ±15mA minimum drive capability
• I2C compatible interface with 27 selectable addresses and 400kHz clock rate
• Power-on reset to zero scale with <10mV glitch during power-up

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the IDD grade corresponds to the –40°C to +85°C industrial temperature range required for the application environment. Ensure the ordering information matches the exact part number to avoid confusion with commercial grades or mid-scale reset variants.

Selection Notes

Select this component for applications requiring high board density due to its tiny 10-lead DFN package. Choose the LTC2626 variant specifically when 12-bit resolution is sufficient, as it offers lower power consumption compared to higher-resolution counterparts like the LTC2606. Ensure the system design accommodates the 2.7V to 5.5V supply range and provides appropriate pull-up resistors for the I2C bus lines.

Part Context

This part belongs to the LTC2606/LTC2616/LTC2626 family of pin-compatible single DACs. While sharing the same package and interface, the family differentiates by resolution: 16-bit (LTC2606), 14-bit (LTC2616), and 12-bit (LTC2626). The IDD suffix denotes the industrial temperature grade, distinguishing it from the commercial grade (IDC) which operates from 0°C to 70°C.

Replacement Considerations

Direct pin-compatible replacements within the same family include the LTC2616IDD#TRPBF (14-bit) and LTC2606IDD#TRPBF (16-bit). These offer higher resolution but may have slightly different settling times and linearity specifications. Verify that the increased resolution does not introduce unnecessary power consumption if 12 bits are sufficient.