DAC101C085CIMM

Digital To Analog Converters Overview

The DAC101C085CIMM is a 10-bit, single-channel voltage-output digital-to-analog converter manufactured by Texas Instruments. It operates from a supply voltage range of 2.7 V to 5.5 V and utilizes an external reference voltage (VREF). The device features a 2-wire I2C-compatible interface supporting Standard (100-kHz), Fast (400-kHz), and High-Speed (3.4-MHz) modes. Key electrical specifications include a maximum settling time of 6 µs, integral non-linearity (INL) of ±2 LSB, and differential non-linearity (DNL) of +0.3/-0.2 LSB. Typical power consumption is 380 µW at 3 V and 730 µW at 5 V. The component is housed in an 8-lead VSSOP package.

Digital To Analog Converters Feature Summary

• Rail-to-rail voltage output amplifier providing full dynamic range relative to the reference voltage.
• External reference input pin (VREF) allows for independent control of the analog output scale.
• I2C-compatible serial interface supports up to nine devices on a single bus via address selection pins.
• Power-on reset circuit ensures the DAC output initializes to zero volts upon startup.

Digital To Analog Converters Applications

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

Digital To Analog Converters Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature rating. Confirm the presence of the NOPB designation if lead-free compliance is mandatory for the assembly process. Ensure the external reference voltage source meets the decoupling requirements specified in the datasheet to maintain accuracy.

Digital To Analog Converters Selection Notes

Select this component when an external reference voltage is required rather than using the supply rail as the reference. Compare against the DAC101C081 if a supply-referenced design is acceptable, as it offers different addressing options. Verify that the I2C bus speed requirements align with the supported Standard, Fast, or High-Speed modes.

Digital To Analog Converters Part Context

This part belongs to the DAC101C08x family of micro-power digital-to-analog converters. It shares pin compatibility and functional architecture with the DAC101C081, differing primarily in its use of an external reference voltage and available I2C addressing options. The family includes 8-bit and 12-bit variants such as the DAC081C085 and DAC121C085.

Digital To Analog Converters Replacement Considerations

The direct replacement for the discontinued DAC101C085CIMM is the DAC101C085CIMM/NOPB. This substitute maintains identical electrical characteristics, pinout, and functionality while ensuring RoHS compliance.

Digital To Analog Converters FAQ

How does the DAC101C085 differ from the DAC101C081 regarding the reference voltage?

The DAC101C085 uses an external reference voltage applied to the VREF pin, whereas the DAC101C081 uses the supply voltage (VA) as its internal reference.

What is the maximum serial clock frequency supported by the I2C interface?

The device supports High-Speed mode with a maximum serial clock frequency of 3.4 MHz, provided the bus capacitance is within specified limits.

Does the DAC101C085 guarantee monotonicity?

Yes, the device ensures monotonicity up to its full 10-bit resolution.