LTC2622CMS8#TRPBF

Overview

The LTC2622CMS8#TRPBF is a dual 12-bit rail-to-rail voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.5V to 5.5V and is housed in an 8-lead MSOP package. The device features built-in high-performance output buffers that are guaranteed monotonic over the operating temperature range. It utilizes a simple SPI/MICROWIRE compatible 3-wire serial interface capable of clock rates up to 50MHz. Key electrical characteristics include a typical settling time of 7µs for 12-bit accuracy, low power consumption of 300µA per DAC at 3V, and individual channel power-down capability reducing current to a maximum of 1µA.

Feature Summary

• Dual 12-bit resolution with rail-to-rail voltage outputs in an 8-lead MSOP package
• SPI/MICROWIRE compatible 3-wire serial interface supporting clock rates up to 50MHz
• Guaranteed monotonic operation over the full temperature range
• Low power consumption: 300µA per DAC at 3V; individual channel power-down to 1µA max

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates a tape and reel packaging format with lead-free compliance. Confirm the 'C' designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the source documentation matches the official Analog Devices datasheet 2602fa for accurate pinout and electrical specifications.

Selection Notes

Select this component when a compact dual-channel solution is required for applications needing 12-bit precision. Compare against the LTC2602 (16-bit) or LTC2612 (14-bit) if higher resolution is necessary. Consider the LTC1661 if a 10-bit version is sufficient for lower cost or power requirements. Verify that the 50MHz serial interface speed meets the system timing constraints.

Part Context

This part belongs to the LTC2602/LTC2612/LTC2622 family of dual rail-to-rail DACs. The family shares identical pinouts and functionality, differing primarily in resolution: LTC2602 offers 16 bits, LTC2612 provides 14 bits, and the LTC2622 delivers 12 bits. This pin compatibility allows for design flexibility across different performance tiers within the same footprint.

Replacement Considerations

The LTC1661 is a pin-compatible 10-bit alternative within the same package. Other family members like the LTC2602 and LTC2612 offer higher resolutions but maintain the same physical interface.