Overview
The DAC088S085, produced by Texas Instruments, is a full-featured, general-purpose, OCTAL, 8-bit, voltage-output digital-to-analog converter (DAC). This device 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 values of 1.95 mW at 3 V and 4.85 mW at 5 V. It is packaged in both 16-pin WQFN and 16-pin TSSOP packages, with the WQFN package being the smallest in its class. The DAC088S085 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 | Unit |
|---|---|---|
| Resolution | 8 Bits | |
| Supply Voltage Range | 2.7 V to 5.5 V | |
| Power Consumption (Typical) | 1.95 mW at 3 V, 4.85 mW at 5 V | |
| Power Consumption (Power Down) | < 0.3 µW at 3 V, < 1 µW at 5 V | |
| Settling Time | 4.5 µs (Maximum) | |
| Zero Code Error | 15 mV (Maximum) | |
| Full-Scale Error | -0.75 %FSR (Maximum) | |
| Operating Temperature Range | -40°C to 125°C | |
| Package Types | 16-pin WQFN, 16-pin TSSOP | |
| Serial Interface Clock Rate | Up to 40 MHz |
Key Features
- Rail-to-rail voltage output
- Daisy chain capability for simultaneous updating of multiple devices
- Power-on reset to 0 V
- Individual channel power-down capability with three different termination options
- Dual external reference voltages (VREF1 and VREF2) with a range of 0.5 V to VA
- Low power operation and small package size, making it suitable for battery-operated equipment
- Compatibility with standard SPI, QSPI, MICROWIRE, and DSP interfaces
- Ensured monotonicity
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 DAC088S085 has an 8-bit resolution.
- What is the supply voltage range for the DAC088S085?
The supply voltage range is from 2.7 V to 5.5 V.
- How much power does the DAC088S085 consume typically?
The typical power consumption is 1.95 mW at 3 V and 4.85 mW at 5 V.
- What is the power consumption in power-down mode?
In power-down mode, the power consumption is less than 0.3 µW at 3 V and less than 1 µW at 5 V.
- What is the settling time of the DAC088S085?
The settling time is up to 4.5 µs.
- Does the DAC088S085 support daisy chain operation?
- 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 from -40°C to 125°C.
- Can individual channels of the DAC088S085 be powered down independently?
- Is the DAC088S085 compatible with standard serial interfaces?
