LTC2624CGN#TRPBF

Overview

The LTC2624CGN#TRPBF is a quad 12-bit rail-to-rail voltage output digital-to-analog converter (DAC) in a 16-lead narrow SSOP package. It operates on a single supply voltage ranging from 2.5V to 5.5V. Each of the four DAC channels features separate reference inputs and built-in high-performance output buffers capable of sourcing or sinking up to 15mA. The device utilizes a simple SPI/Microwire compatible 3-wire serial interface with clock rates up to 50MHz. Key electrical specifications include a typical settling time of 7µs, a maximum differential nonlinearity (DNL) of ±0.5 LSB, and a maximum integral nonlinearity (INL) of ±0.9 LSB. The part is guaranteed monotonic over temperature.

Feature Summary

• Quad 12-bit resolution with rail-to-rail voltage outputs
• Separate reference inputs for each DAC channel
• High output drive capability: ±15mA at 5V supply
• Ultralow crosstalk between DACs (<5μV)
• Power-on reset to zero scale

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging rather than tube packaging. Confirm the 'C' grade designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure compatibility with existing PCB footprints for the 16-lead narrow SSOP package before procurement.

Selection Notes

Select this component when a quad-channel DAC with independent references is required. The 12-bit resolution offers a balance between precision and cost compared to the 14-bit (LTC2614) or 16-bit (LTC2604) variants. Consider the -1 suffix if power-on reset to midscale is preferred over zero scale. Verify that the 50MHz serial clock speed meets system timing requirements.

Part Context

This part belongs to the LTC2604/LTC2614/LTC2624 family of quad DACs. They share identical pinouts and functionality, differing only in resolution. The LTC2624 provides 12-bit accuracy, while the LTC2604 offers 16-bit accuracy. All variants support daisy-chain operation via the SDO pin and feature double-buffered digital inputs for simultaneous updates.

Replacement Considerations

Pin-compatible replacements within the same package include the LTC2604CGN#TRPBF (16-bit) and LTC2614CGN#TRPBF (14-bit). These parts offer higher resolution but maintain the same footprint and interface. Verify that the increased resolution does not introduce unnecessary cost or complexity for the specific application requirements.