DAC1220E/2K5G4

Digital To Analog Converters Overview

The DAC1220E/2K5G4 is a 20-bit digital-to-analog converter manufactured by Texas Instruments. It utilizes delta-sigma architecture to achieve high resolution with a sampling rate of 500 S/s and a settling time of 1.8 ms. The device operates on a single 5V supply, with analog and digital power voltages ranging from 4.75 V to 5.25 V. It features an unbuffered voltage output and supports 2-Wire or 3-Wire serial interfaces. Packaged in a 16-SSOP form factor, it functions within a temperature range of -40°C to +85°C. Key performance metrics include a gain error of 0.015% FSR and integral nonlinearity of +/- 1 LSB.

Digital To Analog Converters Feature Summary

• On-chip offset and gain calibration capabilities ensure accuracy without external trimming components.
• Delta-sigma architecture provides high resolution suitable for precision applications.
• Low power consumption design enables operation with minimal energy usage.

Digital To Analog Converters Applications

• Industrial process control systems requiring high-resolution signal generation
• Precision test and measurement equipment
• Medical instrumentation devices

Digital To Analog Converters Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance when sourcing. Confirm package type matches SSOP-16 requirements for your PCB layout. Check moisture sensitivity level handling procedures during assembly. Ensure interface compatibility with your host controller's serial protocol. Validate operating temperature range against your environmental specifications.

Digital To Analog Converters Selection Notes

Select this component when 20-bit resolution is mandatory for system accuracy. Consider the 1.8 ms settling time for applications not requiring high-speed updates. Verify that the unbuffered voltage output meets the load requirements of your downstream circuitry. Ensure the 5V supply voltage aligns with your system power rails. Evaluate the trade-off between resolution and speed compared to faster SAR DACs.

Digital To Analog Converters Part Context

This part belongs to the DAC1220 series of low-power, high-resolution digital-to-analog converters. It shares architectural similarities with other delta-sigma DACs but offers specific 20-bit precision. The E/2K5G4 designation identifies the tape and reel packaging variant with green (RoHS) compliance. It complements Texas Instruments' portfolio of precision data conversion products.

Digital To Analog Converters Replacement Considerations

Direct substitutes may include other 20-bit delta-sigma DACs from Texas Instruments such as the DAC1220E. Verify pinout compatibility and electrical parameters before substitution. Alternative packages like the tube version DAC1220E are functionally equivalent. Cross-reference datasheets for settling time and interface differences.