LTC2624IGN-1#TRPBF

Overview

The LTC2624IGN-1#TRPBF is a quad 12-bit rail-to-rail voltage output digital-to-analog converter (DAC) in a 16-lead narrow SSOP package. It operates on a single supply of 2.5V to 5.5V and features separate reference inputs for each channel. The device includes built-in high-performance output buffers capable of ±15mA drive current and guarantees monotonicity over temperature. It utilizes a 3-wire SPI/Microwire compatible serial interface with clock rates up to 50MHz. The -1 suffix indicates a power-on reset circuit that sets outputs to midscale upon initialization.

Feature Summary

• Quad 12-bit resolution with guaranteed monotonic operation over the full temperature range
• Power-on reset to midscale for the IGN-1 variant, ensuring defined startup states
• Ultralow crosstalk between channels (<5μV) and high rail-to-rail output drive (±15mA)
• Individual DAC power-down capability reducing current consumption to 1μA max per channel

Applications

• Mobile communications systems requiring multi-channel signal generation
• Process control and industrial automation instrumentation
• Automatic test equipment needing precise analog voltage references
• General-purpose data acquisition systems

Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging rather than tube packaging. Confirm the IGN-1 designation matches the required midscale power-on reset behavior, as non-suffixed or C-grade variants may differ. Ensure the component source provides valid traceability documentation for Analog Devices manufacturing standards.

Selection Notes

Select this part when four independent 12-bit voltage outputs are required in a compact SSOP footprint. Choose the IGN-1 variant if system initialization requires outputs to settle at midscale rather than zero scale. Verify that the 2.5V to 5.5V supply range aligns with the system's available power rails and that the 50MHz serial clock speed is supported by the host microcontroller.

Part Context

This component belongs to the LTC2604/LTC2614/LTC2624 family of quad DACs, differentiated primarily by resolution: 16-bit, 14-bit, and 12-bit respectively. The IGN-1 suffix denotes the industrial temperature range (-40°C to 85°C) and the specific power-on reset characteristic. The #TRPBF suffix indicates lead-free finish and tape-and-reel shipping configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the verified source material. Designers should consult Analog Devices marketing for alternative components with similar pinouts or performance specifications.