Overview
The Texas Instruments DAC128S085CIMT/NOPB is a 12-bit micro power OCTAL 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 available in 16-lead WQFN and TSSOP packages. The WQFN package makes it the smallest OCTAL DAC in its class. The device features rail-to-rail output swing and a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interfaces, operating at clock rates up to 40 MHz across the entire supply voltage range.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Number of Channels | 8 |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Power Consumption | 1.95 mW (at 3 V), 4.85 mW (at 5 V) |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | 16-lead WQFN, 16-lead TSSOP |
| Interface | 3-wire serial (SPI, QSPI, MICROWIRE, DSP) |
| Clock Rate | Up to 40 MHz |
| Output Type | Voltage, Rail-to-Rail |
| Integral Nonlinearity (INL) | ±8 LSB (Maximum) |
| Settling Time | 8.5 μs (Maximum) |
| RoHS Compliant | Yes |
Key Features
- Rail-to-rail output swing with on-chip output amplifiers
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interfaces, operating at clock rates up to 40 MHz
- Dual external reference inputs (VREF1 and VREF2) for channels A-D and E-H, respectively
- Individual channel power-down capability with three different termination options
- Daisy-chain capability for simultaneous output updating of multiple DACs
- Power-on reset to 0 V and low power consumption (less than 0.3 μW at 3 V and less than 1 μW at 5 V in power-down mode)
- Small package options (WQFN and TSSOP) making it the smallest OCTAL DAC in its class
Applications
- Battery-powered instruments due to low power consumption
- 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 DAC128S085?
The DAC128S085 has a resolution of 12 bits.
- What is the supply voltage range for the DAC128S085?
The supply voltage range is from 2.7 V to 5.5 V.
- What types of packages are available for the DAC128S085?
The DAC128S085 is available in 16-lead WQFN and 16-lead TSSOP packages.
- What is the maximum clock rate for the serial interface?
The serial interface can operate at clock rates up to 40 MHz.
- Does the DAC128S085 support daisy-chain operation?
Yes, the DAC128S085 supports daisy-chain operation for simultaneous output updating of multiple DACs.
- What is the power consumption of the DAC128S085 in active mode?
The 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.
- Is the DAC128S085 RoHS compliant?
Yes, the DAC128S085 is RoHS compliant.
- What is the operating temperature range of the DAC128S085?
The operating temperature range is from -40°C to 125°C.
- Does the DAC128S085 have individual channel power-down capability?
Yes, the DAC128S085 has individual channel power-down capability with three different termination options.
