Product Summary
The DAC1220E is a 20-bit digital-to-analog (D/A) converter offering 20-bit monotonic performance over the specified temperature range. It utilizes delta-sigma technology to achieve inherently linear performance in a small package at very-low power. The resolution of the DAC1220E can be programmed to 20 bits for fullscale, settling to 0.003% within 15ms typical, or 16 bits for full-scale, settling to 0.012% within 2ms max. The output range is two times the external reference voltage. On-chip calibration circuitry of the DAC1220E dramatically reduces low offset and gain errors. The DAC1220E features a synchronous serial interface. In single-converter applications, the serial interface can be accomplished with just two wires, allowing low-cost isolation. For multiple converters, a CS signal allows for selection of the appropriate D/A converter.
Parametrics
DAC1220E absolute maximum ratings: (1)AVDD to DVDD: ±0.3V; (2)AVDD to AGND: –0.3V to 6V; (3)DVDD to DGND: –0.3V to 6V; (4)AGND to DGND: ±0.3V; (5)VREF Voltage to AGND: 2.0V to 3.0V; (6)Digital Input Voltage to DGND: –0.3V to DVDD + 0.3V; (7)Digital Output Voltage to DGND: –0.3V to DVDD + 0.3V; (8)Package Power Dissipation: (TJMAX – TA)/qJA; (9)Maximum Junction Temperature (TJMAX): +150℃; (10)Thermal Resistance, θJA,SSOP-16: 200℃/W; (11)Lead Temperature (soldering, 10s): +300℃.
Features
DAC1220E features: (1)20-bit monotonicity guaranteed over –40℃ to +85℃; (2)low power: 2.5mW; (3)voltage output; (4)settling time: 2ms to 0.012%; (5)max linearity error: ±0.0015%; (6)on-chip calibration.
Diagrams
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![]() DAC1220E/2K5 |
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![]() DAC (D/A Converters) 20-Bit Low Power |
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![]() DAC1220EVM |
![]() Texas Instruments |
![]() Data Conversion IC Development Tools DAC1220EVM Eval Mod |
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![]() DAC1220EG4 |
![]() Texas Instruments |
![]() DAC (D/A Converters) 20-Bit Low Power |
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![]() DAC1220E/2K5G4 |
![]() Texas Instruments |
![]() DAC (D/A Converters) 20-Bit Low Power |
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