LTC2624CGN#PBF

Overview

The LTC2624CGN#PBF 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 voltage ranging from 2.5V to 5.5V. The device features four independent DAC channels with separate reference inputs for each channel, ensuring high precision and low crosstalk. It utilizes a simple SPI/Microwire compatible 3-wire serial interface capable of clock rates up to 50MHz. The outputs are buffered and guaranteed monotonic over temperature. Key electrical specifications include a typical settling time of 7µs, a supply current of 1.3mA at 5V, and individual channel power-down capability reducing current to 1µA maximum.

Feature Summary

• Quad 12-bit resolution with rail-to-rail voltage outputs in a 16-lead narrow SSOP package
• Separate reference inputs for each DAC channel with ultralow crosstalk (<5µV)
• SPI/Microwire compatible 3-wire serial interface supporting daisy-chain operation
• Power-on reset circuit clears outputs to zero scale upon initialization

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Instrumentation
• Automatic Test Equipment

Procurement Notes

Verify the specific ordering suffix '#PBF' indicates lead-free finish and RoHS compliance as per Analog Devices standards. Confirm the 'C' grade designation corresponds to the commercial temperature range of 0°C to 70°C. Check current availability status as distribution may vary by region. Ensure the pinout matches the 16-lead narrow SSOP configuration before integration.

Selection Notes

Select this component when four independent 12-bit voltage outputs are required in a compact surface-mount package. It is suitable for applications needing separate reference inputs per channel to minimize crosstalk. Consider the 2.5V to 5.5V supply range and 50MHz serial interface speed for system compatibility. Evaluate the 7µs settling time against signal update requirements.

Part Context

This part belongs to the LTC2604/LTC2614/LTC2624 family of quad DACs. The LTC2624 specifically offers 12-bit resolution, whereas the LTC2614 provides 14 bits and the LTC2604 provides 16 bits. All variants share the same pinout and package style, allowing for pin-compatible upgrades or downgrades based on resolution needs. The '-1' suffix variants feature power-on reset to midscale instead of zero scale.

Replacement Considerations

LTC2624IGN#PBF: Same resolution and package but extended industrial temperature range (-40°C to 85°C). LTC2624CGN-1#PBF: Same specifications but power-on reset defaults to midscale. LTC2614CGN#PBF: Pin-compatible upgrade offering 14-bit resolution.