DAC101C081CISD

Digital To Analog Converters Overview

The DAC101C081CISD is a 10-bit, single-channel voltage-output digital-to-analog converter (DAC) from Texas Instruments. It operates on a supply voltage range of 2.7 V to 5.5 V and utilizes the supply voltage as its internal reference. The device features an I2C-compatible 2-wire serial interface supporting Standard (100 kHz), Fast (400 kHz), and High-Speed (3.4 MHz) modes. Key electrical specifications include a maximum integral non-linearity (INL) of ±2 LSB, a differential non-linearity (DNL) of +0.3/-0.2 LSB, and a typical settling time of 6 µs. Power consumption is typically 380 µW at 3 V and 730 µW at 5 V in normal operation.

Digital To Analog Converters Feature Summary

• Rail-to-rail analog output amplifier providing full dynamic range relative to the supply voltage.
• I2C-compatible serial interface with pin-selectable addressing for multi-device bus configurations.
• Integrated power-on reset circuit ensuring zero-volt startup condition upon power application.

Digital To Analog Converters Applications

• Industrial process control systems
• Portable battery-operated instruments
• Digital gain and offset adjustment circuits
• Programmable voltage and current sources

Digital To Analog Converters Procurement Notes

Verify the specific package suffix against the datasheet orderable addendum to ensure correct physical dimensions and pinout compatibility. Confirm that the ordering suffix matches the required tape-and-reel or cut-tape packaging format for your assembly line. Cross-reference the manufacturer part number with official distributor databases to validate current production status and availability.

Digital To Analog Converters Selection Notes

Select this component when a low-pin-count, cost-effective solution is required for applications needing 10-bit resolution. Ensure the system design accommodates the use of the supply voltage as the reference source rather than an external precision reference. Verify that the I2C bus speed requirements align with the device's support for standard, fast, and high-speed modes.

Digital To Analog Converters Part Context

This device belongs to the DAC101C08x family, which includes pin-compatible variants such as the DAC081C081 (8-bit) and DAC121C081 (12-bit). These devices share identical functional block diagrams and package options, allowing for easy resolution upgrades within the same footprint. The family is designed for micro-power applications requiring minimal board space.

Digital To Analog Converters Replacement Considerations

Direct pin-compatible alternatives within the same family include the DAC081C081 and DAC121C081. These parts maintain identical pinouts and functionality but offer different resolution levels. Ensure the selected replacement meets the specific accuracy and speed requirements of the original design.

Digital To Analog Converters FAQ

How does the DAC101C081 handle the reference voltage?

The DAC101C081 uses the analog supply voltage (VA) as its internal reference. Therefore, VA must be decoupled and treated as a clean reference source to ensure accurate conversion results.

What is the maximum load capacitance the output can drive?

The output amplifier can drive a maximum load capacitance of 1500 pF to ground or to VA, provided the resistive load is infinite or 2 kΩ.

Does the device guarantee monotonicity?

Yes, the DAC101C081 ensures monotonicity up to 10 bits due to its resistor string architecture, preventing missing codes across the entire input range.