LTC2622IMS8#TRPBF

Overview

The LTC2622IMS8#TRPBF is a dual 12-bit rail-to-rail voltage-output digital-to-analog converter (DAC) in an 8-lead MSOP package. It operates on a single supply of 2.5V to 5.5V and features built-in high-performance output buffers capable of ±15mA drive current. The device uses a simple SPI/MICROWIRE compatible 3-wire serial interface with clock rates up to 50MHz. Key specifications include guaranteed monotonicity, ultralow crosstalk of 30µV between channels, and individual channel power-down currents as low as 1µA. The part incorporates a power-on reset circuit that holds outputs at zero scale until valid data is written.

Feature Summary

• Dual 12-bit resolution with rail-to-rail voltage outputs
• High-speed 3-wire serial interface supporting up to 50MHz SCK
• Ultralow inter-channel crosstalk of 30µV
• Individual channel power-down mode reducing current to 1µA max

Applications

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

Procurement Notes

Verify the #TRPBF suffix indicates tape and reel packaging for automated assembly. Confirm the IMS8 designation corresponds to the 8-lead plastic MSOP package. Ensure the 'I' grade meets the required -40°C to +85°C operating temperature range for the specific application environment.

Selection Notes

Select this model when 12-bit resolution is sufficient for the application, offering lower power consumption compared to the 16-bit LTC2602 variant. Consider the ±15mA output drive capability for direct load interfacing without external amplifiers. Verify compatibility with the system's serial protocol timing requirements, specifically the 50MHz maximum clock speed.

Part Context

This component belongs to the LTC2602/LTC2612/LTC2622 family of dual DACs. The LTC2622 provides 12-bit resolution, whereas the LTC2612 offers 14 bits and the LTC2602 provides 16 bits. All variants share identical pinouts, interfaces, and physical dimensions, allowing for pin-compatible upgrades or downgrades within the same package.

Replacement Considerations

LTC2622IMS8#PBF: Same electrical specifications but supplied in tube packaging instead of tape and reel.