Overview
The DAC088S085CIMTX from Texas Instruments is a full-featured, general-purpose, OCTAL, 8-bit, voltage-output digital-to-analog converter (DAC). It operates from a single supply voltage ranging from 2.7 V to 5.5 V and is known for its low power consumption, with typical power usage of 1.95 mW at 3 V and 4.85 mW at 5 V. The DAC is packaged in both 16-pin WQFN and 16-pin TSSOP packages, with the WQFN package being the smallest in its class. It features on-chip output amplifiers that allow rail-to-rail output swing and a three-wire serial interface compatible with standard SPI, QSPI, MICROWIRE, and DSP interfaces, operating at clock rates up to 40 MHz across the entire supply voltage range.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8 Bits |
| INL (Integral Non-Linearity) | ±0.5 LSB (Maximum) |
| DNL (Differential Non-Linearity) | 0.15 / –0.1 LSB (Maximum) |
| Settling Time | 4.5 µs (Maximum) |
| Zero Code Error | 15 mV (Maximum) |
| Full-Scale Error | –0.75 %FSR (Maximum) |
| Supply Power (Normal) | 1.95 mW (3 V) / 4.85 mW (5 V) Typical |
| Supply Power (Power Down) | 0.3 µW (3 V) / 1 µW (5 V) Typical |
| Operating Temperature Range | –40°C to 125°C |
| Package Types | 16-pin WQFN, 16-pin TSSOP |
Key Features
- Ensured Monotonicity
- Low Power Operation
- Rail-to-Rail Voltage Output
- Daisy Chain Capability for simultaneous updating of multiple devices
- Power-On Reset to 0 V
- Simultaneous Output Updating
- Individual Channel Power Down Capability with three different termination options
- Wide Power Supply Range (2.7 V to 5.5 V)
- Dual Reference Voltages With Range of 0.5 V to VA
- Industry’s Smallest Package
- Compatible with standard SPI, QSPI, MICROWIRE, and DSP interfaces
Applications
- Battery-Powered Instruments
- Digital Gain and Offset Adjustment
- Programmable Voltage and Current Sources
- Programmable Attenuators
- Voltage Reference for ADCs
- Sensor Supply Voltage
- Range Detectors
Q & A
- What is the resolution of the DAC088S085?
The resolution of the DAC088S085 is 8 bits.
- What is the typical power consumption of the DAC088S085 at 3 V and 5 V?
The typical power consumption is 1.95 mW at 3 V and 4.85 mW at 5 V.
- What are the package options for the DAC088S085?
The DAC088S085 is available in 16-pin WQFN and 16-pin TSSOP packages.
- What is the operating temperature range of the DAC088S085?
The operating temperature range is –40°C to 125°C.
- Does the DAC088S085 support daisy chain operation?
Yes, the DAC088S085 supports daisy chain operation, allowing multiple devices to be updated simultaneously using a single serial interface.
- What are the reference voltage ranges for the DAC088S085?
The reference voltages can be set independently between 0.5 V and VA for each set of channels.
- How does the power-down feature work on the DAC088S085?
The power-down feature allows each DAC channel to be independently powered down with three different termination options, reducing power consumption to less than 0.3 µW at 3 V and less than 1 µW at 5 V.
- Is the DAC088S085 compatible with standard serial interfaces?
Yes, it is compatible with standard SPI, QSPI, MICROWIRE, and DSP interfaces.
- What is the maximum clock rate for the serial interface of the DAC088S085?
The serial interface operates at clock rates up to 40 MHz over the entire supply voltage range.
- Can the DAC outputs be updated simultaneously or individually?
Yes, all eight DAC outputs can be updated simultaneously or individually.
