LTC2704IGW-16

Overview

The LTC2704IGW-16#PBF is a quad-channel, 16-bit voltage output digital-to-analog converter (DAC) from Analog Devices. It features SoftSpan technology for configurable output ranges and operates with an analog supply of 4.5 V to 16.5 V and a digital supply of 2.7 V to 5.5 V. The device utilizes an SPI-compatible interface and achieves a settling time of 4 µs. Key performance metrics include a differential nonlinearity (DNL) of ±1 LSB, integral nonlinearity (INL) of ±2 LSB, and a gain error of 4 LSB. It consumes 500 nA of operating current and dissipates up to 172.5 mW, housed in a 44-lead SSOP package.

Feature Summary

• Quad-channel 16-bit resolution with SoftSpan output range configuration
• High accuracy specifications: DNL ±1 LSB, INL ±2 LSB, Gain Error 4 LSB
• Fast settling time of 4 µs with SPI serial interface
• Low power consumption: 500 nA operating current

Applications

• Battery-powered instrumentation systems requiring low quiescent current
• Industrial process control loops needing precise multi-channel voltage outputs
• Data acquisition systems utilizing high-resolution DACs
• Portable test equipment demanding wide dynamic range and accuracy

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence when sourcing. Confirm the SSOP-44 package availability as distribution channels may vary. Check for moisture sensitivity level requirements during storage and handling. Ensure the analog and digital supply voltages match the system design constraints before procurement.

Selection Notes

Select this component for applications requiring four independent 16-bit voltage outputs with minimal power draw. The SoftSpan feature allows flexibility in output voltage ranges without external components. Verify that the 4 µs settling time meets the system's speed requirements. Ensure the PCB layout supports the SSOP-44 package dimensions and thermal dissipation needs given the 172.5 mW power rating.

Part Context

This part belongs to the LTC2704 series, which includes variants with different resolutions (12-bit, 14-bit) and channel counts. The IGW-16 designation specifically identifies the 16-bit resolution version in the SSOP-44 package. It is designed for precision applications where multiple channels are needed in a compact form factor.

Replacement Considerations

Direct pin-compatible replacements within the same family include other LTC2704 variants with different resolutions or packages. Cross-family replacements require verification of pinout compatibility, supply voltage ranges, and interface protocols. No specific substitute part numbers are confirmed in the provided data.