Overview
The DAC8501E/250 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 device uses a versatile 3-wire serial interface compatible with standard SPI, QSPI, Microwire, and Digital Signal Processor (DSP) interfaces. It is particularly suited for portable battery-operated equipment due to its low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Package | VSSOP-8 (DGK) |
| Pins | 8 |
| Operating Temperature Range | -40°C to 105°C |
| Power Supply | +2.7V to +5.5V |
| Current Consumption (Normal Mode) | 250 µA at 5V, 240 µA at 2.7V |
| Current Consumption (Power-Down Mode) | 200 nA at 5V, 50 nA at 2.7V |
| Settling Time | 10 µs to ±0.003% FSR |
| Multiplying-Mode Bandwidth | 350 kHz |
| Serial Interface Clock Rate | Up to 30 MHz |
Key Features
- Micro-power operation: 250 µA at 5V
- Multiplying-mode bandwidth: 350 kHz
- Power-on reset to zero
- Ensured monotonic by design
- Settling time: 10 µs to ±0.003% FSR
- Low-power serial interface with Schmitt-triggered inputs
- On-chip output buffer amplifier, rail-to-rail operation
- SYNC/Interrupt facility
- Power-down feature reducing current to 200 nA 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/250?
The DAC8501E/250 has a resolution of 16 bits. - What is the operating temperature range of the DAC8501E/250?
The operating temperature range is -40°C to 105°C. - What is the power supply range for the DAC8501E/250?
The power supply range is +2.7V to +5.5V. - How much current does the DAC8501E/250 consume in normal mode?
The current consumption in normal mode is 250 µA at 5V and 240 µA at 2.7V. - What is the settling time of the DAC8501E/250?
The settling time is 10 µs to ±0.003% FSR. - What is the multiplying-mode bandwidth of the DAC8501E/250?
The multiplying-mode bandwidth is 350 kHz. - What type of serial interface does the DAC8501E/250 use?
The DAC8501E/250 uses a versatile 3-wire serial interface compatible with standard SPI, QSPI, Microwire, and DSP interfaces. - Does the DAC8501E/250 have a power-down feature?
Yes, the DAC8501E/250 has a power-down feature that reduces the current consumption to 200 nA at 5V. - What is the package type of the DAC8501E/250?
The package type is VSSOP-8 (DGK). - What are some common applications of the DAC8501E/250?
Common applications include process control, data acquisition systems, closed-loop servo-control, PC peripherals, portable instrumentation, and programmable attenuation.
