Overview
The DAC128S085CISQ/NOPB is a full-featured, general-purpose OCTAL 12-bit voltage-output digital-to-analog converter (DAC) produced by Texas Instruments. This device is designed to operate from a single power supply ranging from 2.7V to 5.5V, making it versatile for various applications. It is packaged in a 16-lead WQFN package, which is the smallest in its class, enhancing its suitability for space-constrained designs. The DAC128S085CISQ/NOPB features low power operation, rail-to-rail voltage output, and a wide range of functionalities that make it an excellent choice for battery-operated equipment and other applications requiring high precision and low power consumption.
Key Specifications
| Specification | Description |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 8 |
| Package | WQFN-16-EP (4x4) |
| Operating Temperature Range | -40°C to 125°C |
| Power Supply Range | 2.7V to 5.5V |
| Settling Time | 8.5 μs (max) |
| Integral Non-Linearity (INL) | ±8 LSB (max) |
| Differential Non-Linearity (DNL) | ±0.75 / -0.4 LSB (max) |
| Zero Code Error | +15 mV (max) |
| Full-Scale Error | 0.75 %FSR (max) |
| Power Consumption (Normal) | 1.95 mW at 3V, 4.85 mW at 5V |
| Power Consumption (Power Down) | <0.3 µW at 3V, <1 µW at 5V |
| Interface | 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP |
| Clock Rate | Up to 40 MHz |
Key Features
- Low Power Operation: Consumes 1.95 mW at 3V and 4.85 mW at 5V.
- Rail-to-Rail Voltage Output: Allows for full output voltage swing.
- Daisy-Chain Capability: Enables simultaneous updating of multiple DACs using a single serial interface.
- Power-on Reset to 0 V: Ensures DAC outputs power up to zero volts and remain there until a valid write.
- Individual Channel Power-Down Capability: Each DAC can be independently powered down with three different termination options.
- Dual Reference Voltages: Each reference can be set independently between 0.5V and V_A, providing a wide output dynamic range.
- Smallest Package in the Industry: Packaged in a 16-lead WQFN package.
- Ensured Monotonicity: Ensures that the DAC outputs are always monotonic.
Applications
- Battery-Powered Instruments: Ideal for devices requiring low power consumption.
- Digital Gain and Offset Adjustment: Suitable for applications needing precise gain and offset control.
- Programmable Voltage and Current Sources: Can be used in systems requiring adjustable voltage or current sources.
- Programmable Attenuators: Useful in applications that need adjustable attenuation.
- Voltage Reference for ADCs: Can serve as a reference voltage for analog-to-digital converters.
- Sensor Supply Voltage: Suitable for powering sensors in various applications.
- Range Detectors: Can be used in systems that require detecting specific voltage ranges.
Q & A
- What is the resolution of the DAC128S085CISQ/NOPB?
The resolution is 12 bits.
- What is the operating temperature range of the DAC128S085CISQ/NOPB?
The operating temperature range is -40°C to 125°C.
- What is the power supply range for the DAC128S085CISQ/NOPB?
The power supply range is from 2.7V to 5.5V.
- What is the settling time of the DAC128S085CISQ/NOPB?
The settling time is 8.5 μs (max).
- Does the DAC128S085CISQ/NOPB support daisy-chain operation?
Yes, it supports daisy-chain operation, allowing multiple DACs to be updated simultaneously using a single serial interface.
- What is the power consumption of the DAC128S085CISQ/NOPB in normal operation?
The power consumption is 1.95 mW at 3V and 4.85 mW at 5V.
- What is the power consumption of the DAC128S085CISQ/NOPB in power-down mode?
The power consumption is less than 0.3 µW at 3V and less than 1 µW at 5V.
- What interfaces does the DAC128S085CISQ/NOPB support?
The DAC supports SPI, QSPI, MICROWIRE, and DSP interfaces.
- Can the DAC128S085CISQ/NOPB be used in battery-powered instruments?
Yes, it is suitable for battery-powered instruments due to its low power consumption.
- What is the package type of the DAC128S085CISQ/NOPB?
The package type is WQFN-16-EP (4x4).
