LTC2619CGN-1#PBF

Overview

The LTC2619CGN-1#PBF is a quad 14-bit rail-to-rail voltage output digital-to-analog converter (DAC) in a 16-lead SSOP package. It operates on a single supply of 2.7V to 5.5V and features built-in high-performance output buffers guaranteed monotonic over temperature. The device utilizes a 2-wire I²C compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. A power-on reset circuit initializes outputs to mid-scale upon startup, maintaining this state until a valid write and update occur.

Feature Summary

• Quad 14-bit resolution with separate reference inputs for each channel
• I²C interface with 27 selectable addresses via CA0, CA1, and CA2 pins
• Power-on reset to mid-scale for the -1 suffix variant
• Rail-to-rail output drive capability with ±15mA minimum current

Applications

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

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified suppliers. Confirm the presence of the 'LTC2619CGN-1#PBF' marking and lead-free finish label on the shipping container. Ensure the package corresponds to the 16-lead plastic SSOP format. Check for any specific handling requirements regarding electrostatic discharge during storage and installation.

Selection Notes

Select the LTC2619CGN-1#PBF when 14-bit resolution and mid-scale power-on reset are required. The '-1' suffix designates the mid-scale reset behavior, distinct from the zero-scale reset of the non-suffixed version. This part is suitable for applications needing small board density in a 16-lead SSOP package. Ensure the I²C bus supports the required clock rates and address configurations.

Part Context

This component belongs to the LTC2609/LTC2619/LTC2629 family of quad DACs. The LTC2619 specifically provides 14-bit resolution, positioned between the 16-bit LTC2609 and the 12-bit LTC2629. All variants share the same pinout and I²C interface, allowing for pin-compatible design flexibility across different resolution requirements within the same package type.

Replacement Considerations

The non-suffixed LTC2619CGN#PBF serves as a direct physical replacement but resets to zero-scale instead of mid-scale. For higher resolution needs, the LTC2609CGN-1#PBF is pin-compatible. For lower resolution, the LTC2629CGN-1#PBF is an alternative. Verify that the replacement maintains the required mid-scale power-on reset characteristic if critical to system safety.