LTC2624IGN-1#PBF

Overview

The LTC2624IGN-1#PBF is a quad 12-bit rail-to-rail voltage output digital-to-analog converter (DAC) in a 16-lead narrow SSOP package. It features separate reference inputs for each DAC, built-in high-performance output buffers, and guaranteed monotonicity. The device operates on a single supply of 2.5V to 5.5V with low power consumption of 250μA per DAC at 3V. Individual DACs can be powered down to 1μA maximum. It includes a power-on reset circuit that sets outputs to midscale upon initialization. The part uses an SPI/MICROWIRE compatible 3-wire serial interface with clock rates up to 50MHz.

Feature Summary

• Quad 12-bit resolution with rail-to-rail voltage outputs
• Separate reference inputs for each DAC channel
• Power-on reset to midscale for the -1 suffix variant
• Ultralow crosstalk between DACs (<5μV)

Applications

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

Procurement Notes

Verify the specific -1 suffix indicates power-on reset to midscale rather than zero scale. Confirm the IGN-1 designation corresponds to the industrial temperature range of –40°C to +85°C. Ensure the #PBF suffix denotes lead-free finish compliance. Check current availability status as distribution may vary by region.

Selection Notes

Select this component when four independent 12-bit voltage outputs are required in a compact SSOP package. The -1 suffix is critical if system initialization requires midscale output states during power-up. Compare against LTC2604 or LTC2614 if higher resolution (16-bit or 14-bit) is needed, noting they share pin compatibility. Consider the 2.5V to 5.5V supply range for system power design.

Part Context

This part belongs to the LTC2604/LTC2614/LTC2624 family of quad DACs. The LTC2624 specifically offers 12-bit resolution, distinguishing it from the 14-bit LTC2614 and 16-bit LTC2604. All variants share the same 16-lead narrow SSOP package and pinout, allowing for pin-compatible upgrades or downgrades based on resolution requirements.

Replacement Considerations

LTC2624CGN-1#PBF: Same electrical performance but commercial temperature range (0°C to 70°C). LTC2624IGN#PBF: Industrial temperature range but resets to zero scale instead of midscale on power-up. LTC2614IGN-1#PBF: Higher 14-bit resolution with identical package and midscale reset behavior.