Overview
The DAC084S085 is a full-featured, general-purpose QUAD 8-bit voltage-output digital-to-analog converter (DAC) produced by Texas Instruments. It operates from a single 2.7-V to 5.5-V supply, consuming 1.1 mW at 3 V and 2.5 mW at 5 V. The DAC is packaged in 10-pin SON and VSSOP packages, with the 10-pin SON package being the smallest in its class. The on-chip output amplifier allows for rail-to-rail output swing, and the three-wire serial interface supports clock rates up to 40 MHz across the entire supply voltage range, compatible with standard SPI, QSPI, MICROWIRE, and DSP interfaces.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 8 Bits | |
| INL (Integral Nonlinearity) | ±0.5 LSB (Maximum) | |
| DNL (Differential Nonlinearity) | +0.18 / -0.13 LSB (Maximum) | |
| Setting Time | 4.5 µs (Maximum) | µs |
| Zero Code Error | +15 mV (Maximum) | mV |
| Full-Scale Error | -0.75 %FS (Maximum) | %FS |
| Supply Power (Normal) | 1.1 mW (3 V) / 2.5 mW (5 V) Typical | mW |
| Supply Power (Power Down) | 0.3 µW (3 V) / 0.8 µW (5 V) Typical | µW |
| Operating Temperature Range | -40°C to +105°C | °C |
Key Features
- Ensured Monotonicity
- Low-Power Operation
- Rail-to-Rail Voltage Output
- Power-On Reset to 0 V
- Simultaneous Output Updating
- Wide Power Supply Range (2.7 V to 5.5 V)
- Industry's Smallest Package
- Power Down Modes
Applications
- Battery-Powered Instruments
- Digital Gain and Offset Adjustment
- Programmable Voltage and Current Sources
- Programmable Attenuators
Q & A
- What is the resolution of the DAC084S085?
The resolution of the DAC084S085 is 8 bits.
- What is the operating voltage range of the DAC084S085?
The DAC084S085 operates from a single 2.7-V to 5.5-V supply.
- What is the power consumption of the DAC084S085 at 3 V and 5 V?
The power consumption is 1.1 mW at 3 V and 2.5 mW at 5 V.
- What is the maximum setting time for the DAC084S085?
The maximum setting time is 4.5 µs.
- Does the DAC084S085 support simultaneous output updating?
- What are the power-down modes available for the DAC084S085?
The DAC084S085 has four power-down modes with different output terminations (High-Z, 2.5 kΩ to GND, 100 kΩ to GND).
- What is the operating temperature range of the DAC084S085?
The operating temperature range is -40°C to +105°C.
- Is the DAC084S085 compatible with standard serial interfaces?
- What is the effect of the power-on reset circuit in the DAC084S085?
The power-on reset circuit ensures that the DAC output powers up to zero volts and remains there until a valid write to the device is made.
- How does the reference voltage affect the output dynamic range of the DAC084S085?
The reference voltage, which can vary between 1 V and VA, provides the widest possible output dynamic range.
