LTC2625CGN-1#PBF

Overview

The LTC2625CGN-1#PBF is an octal 12-bit rail-to-rail voltage-output digital-to-analog converter (DAC) in a 16-lead narrow SSOP package. It features built-in high-performance output buffers and operates on a single supply of 2.7V to 5.5V. The device utilizes a 2-wire I²C compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a settling time of 7µs, differential nonlinearity (DNL) of ±0.5 LSB, integral nonlinearity (INL) of ±1 LSB, and a gain error of 0.1% FSR. The -1 suffix designates a power-on reset state that defaults outputs to mid-scale.

Feature Summary

• Octal 12-bit resolution with guaranteed monotonicity over temperature
• Rail-to-rail voltage outputs with ±15mA minimum drive capability
• Power-on reset to mid-scale for the -1 variant
• Ultralow crosstalk between channels (<10µV)

Applications

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

Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free tube packaging when sourcing from distributors. Confirm the -1 designation is required if mid-scale power-on reset behavior is necessary for the application, as opposed to zero-scale reset found in the base model. Ensure the SSOP-16 package dimensions match the PCB footprint constraints.

Selection Notes

Select this component when eight independent analog outputs are required in a compact form factor. The 12-bit resolution provides adequate precision for general-purpose control loops where board density is critical. Verify that the 400kHz I²C bus speed meets the system's data throughput requirements and that the 2.7V to 5.5V supply range aligns with the available power rails.

Part Context

This part belongs to the LTC2605/LTC2615/LTC2625 family of octal DACs. The LTC2625 specifically offers 12-bit resolution, whereas the LTC2615 provides 14 bits and the LTC2605 provides 16 bits. All variants share the same pinout and interface protocol, allowing for pin-compatible upgrades or downgrades based on resolution needs.

Replacement Considerations

Public confirmed substitute part numbers: None.