Overview
The DAC8501E/2K5 is a low-power, single, 16-bit buffered voltage output Digital-to-Analog Converter (DAC) produced by Texas Instruments. It is optimized for multiplying operation and features an on-chip precision output amplifier that allows for rail-to-rail output swing. The DAC uses a versatile 3-wire serial interface compatible with standard SPI™, QSPI™, Microwire™, and Digital Signal Processor (DSP) interfaces. This device is particularly suited for applications requiring low power consumption, making it ideal for portable battery-operated equipment.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 16 bits | |
| Supply Voltage | +2.7V to +5.5V | |
| Current Consumption (Normal Mode) | 250µA (VDD = +3.6V to +5.5V), 240µA (VDD = +2.7V to +3.6V) | VIH = VDD, VIL = GND |
| Current Consumption (Power-Down Mode) | 0.2µA (VDD = +3.6V to +5.5V), 0.05µA (VDD = +2.7V to +3.6V) | VIH = VDD, VIL = GND |
| Settling Time | 10µs to ±0.003% FSR | |
| Temperature Range | –40°C to +105°C | |
| Package | MSOP-8 | |
| Input Coding | Straight Binary | |
| Serial Interface Clock Rate | Up to 30MHz |
Key Features
- Low-power operation: 250µA at 5V
- Multiplying-mode bandwidth: 350kHz
- Power-on reset to zero
- Ensured monotonic by design
- On-chip output buffer amplifier with rail-to-rail operation
- Low-power serial interface with Schmitt-triggered inputs
- Sync interrupt facility
- Power-down feature reducing current to 200nA at 5V
Applications
- Process control
- Data acquisition systems
- Closed-loop servo-control
- PC peripherals
- Portable instrumentation
- Programmable attenuation
Q & A
- What is the resolution of the DAC8501E/2K5?
The DAC8501E/2K5 has a resolution of 16 bits.
- What is the supply voltage range for the DAC8501E/2K5?
The supply voltage range is from +2.7V to +5.5V.
- How much current does the DAC8501E/2K5 consume in normal mode?
The current consumption is 250µA at VDD = +3.6V to +5.5V and 240µA at VDD = +2.7V to +3.6V.
- What is the settling time of the DAC8501E/2K5?
The settling time is 10µs to ±0.003% FSR.
- What is the temperature range for the DAC8501E/2K5?
The temperature range is from –40°C to +105°C.
- What type of package is the DAC8501E/2K5 available in?
The DAC8501E/2K5 is available in an MSOP-8 package.
- What type of input coding does the DAC8501E/2K5 use?
The input coding is straight binary.
- What is the maximum clock rate for the serial interface of the DAC8501E/2K5?
The maximum clock rate is up to 30MHz.
- Does the DAC8501E/2K5 have a power-down feature?
- What are some common applications of the DAC8501E/2K5?
