LTC2629IGN-1#PBF

Overview

The LTC2629IGN-1#PBF is a quad 12-bit rail-to-rail voltage output digital-to-analog converter (DAC) in a 16-lead SSOP package. It features built-in high-performance output buffers and operates on a single supply voltage of 2.7V to 5.5V. The device utilizes a 2-wire I²C compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It incorporates a power-on reset circuit that sets outputs to mid-scale upon initialization. Key specifications include ±0.5 LSB DNL, ±1 LSB INL, and a settling time of 7µs.

Feature Summary

• Quad 12-bit resolution with rail-to-rail buffered voltage outputs
• I²C interface with 27 selectable addresses via CA0/CA1/CA2 pins
• Power-on reset to mid-scale for the -1 suffix variant
• Low power operation: 250µA per DAC at 3V; individual channel power-down to 1µA

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 lot traceability and RoHS compliance status prior to procurement. Note that this specific part number may be subject to end-of-life status or limited availability depending on current manufacturing schedules.

Selection Notes

Select the LTC2629IGN-1#PBF when four independent 12-bit channels are required in a compact SSOP-16 footprint. The '-1' suffix ensures outputs reset to mid-scale during power-up, which is critical for applications where downstream circuits must remain inactive until initialized. Ensure the I²C bus supports the required clock frequency and address configuration.

Part Context

This component belongs to the LTC2609/LTC2619/LTC2629 family of pin-compatible quad DACs. The 'IGN' designation indicates an industrial temperature range (-40°C to +85°C). The '#PBF' suffix denotes a lead-free finish compliant with RoHS standards. It serves as the 12-bit performance tier within this series, offering lower resolution but potentially higher speed or lower cost compared to the 14-bit (LTC2619) and 16-bit (LTC2609) variants.

Replacement Considerations

Pin-compatible alternatives within the same package include the LTC2619IGN-1#PBF (14-bit) and LTC2609IGN-1#PBF (16-bit), provided higher resolution is acceptable. For non-buffered or different interface requirements, other Analog Devices DAC families must be evaluated for electrical compatibility.