Overview
The DAC124S085CIMMX from Texas Instruments is a 12-bit, micro power, quad digital-to-analog converter (DAC) designed for general-purpose applications. It operates from a single supply voltage ranging from 2.7 V to 5.5 V and is known for its low power consumption, typically 1.1 mW at 3 V and 2.4 mW at 5 V. The device features rail-to-rail voltage output and simultaneous output updating, making it versatile for various industrial and process control applications. The DAC124S085 is packaged in a compact 10-pin VSSOP and WSON, making it one of the smallest quad DACs in its class.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Resolution | 12 bits | |||
| Supply Voltage Range | 2.7 V | 5.5 V | V | |
| Normal Supply Power (at 3 V) | 1.1 mW | 1.7 mW | mW | |
| Normal Supply Power (at 5 V) | 2.4 mW | 3.6 mW | mW | |
| Power-Down Supply Current (at 3 V) | 0.3 µW | 20 µA | µW/µA | |
| Power-Down Supply Current (at 5 V) | 0.8 µW | 30 µA | µW/µA | |
| Integral Nonlinearity (INL) | ±8 LSB | LSB | ||
| Differential Nonlinearity (DNL) | 0.7 LSB | -0.5 LSB | LSB | |
| Setting Time | 8.5 µs | µs | ||
| Zero Code Error | 15 mV | mV | ||
| Full-Scale Error | -0.75% FS | % FS |
Key Features
- Low Power Operation: Consumes 1.1 mW at 3 V and 2.4 mW at 5 V, with power-down modes reducing current to as low as 0.3 µW at 3 V and 0.8 µW at 5 V.
- Rail-to-Rail Voltage Output: Allows the output voltage to swing from 0 V to the supply voltage, enhancing the dynamic range of the output signal.
- Power-On Reset to 0 V: Ensures that the DAC outputs are reset to 0 V during power-up, providing a defined initial state.
- Simultaneous Output Updating: All four DAC channels can be updated simultaneously or individually, depending on the mode of operation.
- Wide Power Supply Range: Operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- Industry's Smallest Package: Available in 10-pin VSSOP and WSON packages, making it one of the smallest quad DACs in its class.
- High-Speed Serial Interface: Compatible with SPI, QSPI, MICROWIRE, and DSP interfaces, operating at clock rates up to 40 MHz.
- External Reference Voltage: A single external reference voltage is shared by all four channels, with a range of 1 V to VA, providing a wide output dynamic range).
Applications
- Battery-Powered Instruments: Ideal for low-power applications where energy efficiency is crucial.
- Digital Gain and Offset Adjustment: Can be used to adjust gain and offset in various analog circuits).
- Programmable Voltage and Current Sources: Suitable for applications requiring precise voltage or current control).
- Programmable Attenuators: Can be used in signal processing and transmission systems where adjustable attenuation is needed).
- Process Control and Industrial Automation: Designed for use in industrial automation and process control due to its robust specifications and low power consumption).
Q & A
- What is the resolution of the DAC124S085?
The DAC124S085 has a resolution of 12 bits.
- What is the supply voltage range for the DAC124S085?
The DAC124S085 operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- How much power does the DAC124S085 consume in normal operation?
The DAC124S085 consumes 1.1 mW at 3 V and 2.4 mW at 5 V in normal operation).
- What are the power-down modes of the DAC124S085?
The DAC124S085 has four power-down modes, which reduce the supply current to as low as 0.3 µW at 3 V and 0.8 µW at 5 V).
- Can the DAC124S085 update all outputs simultaneously?
- What is the clock rate of the serial interface of the DAC124S085?
The serial interface of the DAC124S085 operates at clock rates up to 40 MHz).
- What type of packages is the DAC124S085 available in?
The DAC124S085 is available in 10-pin VSSOP and WSON packages).
- What is the temperature range for the DAC124S085?
The DAC124S085 operates over the extended industrial temperature range of -40°C to 105°C).
- What are some common applications of the DAC124S085?
The DAC124S085 is commonly used in battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators).
- How does the power-on reset feature work in the DAC124S085?
The power-on reset feature ensures that the DAC outputs are reset to 0 V during power-up, providing a defined initial state).
