LTC2620CGN#TRPBF

Overview

The LTC2620CGN#TRPBF is an octal 12-bit rail-to-rail voltage-output digital-to-analog converter in a 16-lead SSOP package. It operates on a single 2.5V to 5.5V supply and features built-in high-performance output buffers capable of sourcing or sinking at least 15mA. The device utilizes a simple SPI/MICROWIRE compatible 3-wire serial interface with clock rates up to 50MHz. Key electrical specifications include guaranteed monotonicity, ultralow crosstalk below 10μV, and individual channel power-down current of 1μA maximum. The part includes a power-on reset circuit ensuring outputs remain near zero-scale during initialization.

Feature Summary

• Octal 12-bit resolution with guaranteed monotonic operation over temperature
• Rail-to-rail output drive capability (±15mA minimum) with low DC crosstalk (<10μV)
• 3-wire serial interface supporting SCK frequencies up to 50MHz
• Individual channel power-down mode reducing current to 1μA maximum

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Instrumentation
• Automatic Test Equipment

Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging when reviewing procurement documents. Confirm the 'C' grade designation corresponds to the commercial operating temperature range of 0°C to 70°C. Ensure the GN package type matches the required 16-lead narrow SSOP footprint for board layout compatibility.

Selection Notes

Select this component when eight independent 12-bit voltage outputs are required in a compact form factor. The LTC2620 is suitable for applications needing rail-to-rail swing without external amplifiers. Consider the 14-bit LTC2610 or 16-bit LTC2600 if higher resolution is necessary, as they share pinouts and interface protocols.

Part Context

This part belongs to the LTC2600/LTC2610/LTC2620 family of octal DACs. The LTC2620 specifically provides 12-bit resolution, distinguishing it from the 14-bit LTC2610 and 16-bit LTC2600. All variants share identical pinouts, serial interfaces, and package options, facilitating design upgrades or downgrades within the same hardware platform.

Replacement Considerations

Pin-compatible alternatives within the same family include the LTC2600CGN#TRPBF (16-bit) and LTC2610CGN#TRPBF (14-bit). These parts offer higher resolution while maintaining identical physical dimensions and control logic.