Overview
The AD7801BRU is a single, 8-bit, voltage output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This component operates from a single supply voltage ranging from +2.7 V to +5.5 V, making it suitable for a variety of applications, especially in battery-powered devices due to its low power consumption. The AD7801BRU features a parallel microprocessor and DSP compatible interface, high-speed registers, and double-buffered interface logic, ensuring efficient data transfer and control. The on-chip precision output buffer allows the DAC output to swing rail-to-rail, enhancing its versatility in different circuit designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | +2.7 V to +5.5 V | V |
| Resolution | 8-bit | - |
| Settling Time | Typically 1.2 µs | µs |
| Power Consumption (Active) | Less than 5 mW at 3.3 V | mW |
| Power Consumption (Power-Down) | Less than 3 µW at 25°C | µW |
| Package Type | 20-lead SOIC and 20-lead TSSOP | - |
| Operating Temperature Range | –40°C to +105°C | °C |
Key Features
- Low power, single supply operation from +2.7 V to +5.5 V.
- On-chip precision output buffer allowing rail-to-rail output swing.
- Internal or external reference capability.
- High-speed parallel interface with double-buffered interface logic.
- Power-down function reducing power consumption to less than 1 µA at 25°C.
- Available in 20-lead SOIC and 20-lead TSSOP packages.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
Q & A
- What is the supply voltage range for the AD7801BRU?
The AD7801BRU operates from a single supply voltage ranging from +2.7 V to +5.5 V.
- What is the resolution of the AD7801BRU?
The AD7801BRU is an 8-bit DAC.
- What is the typical settling time of the AD7801BRU?
The typical settling time is 1.2 µs.
- How much power does the AD7801BRU consume in active mode?
The power consumption is less than 5 mW at 3.3 V.
- What is the power consumption in power-down mode?
The power consumption is less than 3 µW at 25°C.
- In what packages is the AD7801BRU available?
The AD7801BRU is available in 20-lead SOIC and 20-lead TSSOP packages.
- What is the operating temperature range of the AD7801BRU?
The operating temperature range is –40°C to +105°C).
- Can the AD7801BRU use an external reference?
- Is the AD7801BRU suitable for battery-powered devices?
- What type of interface does the AD7801BRU have?
