Overview
The AD7303BR, produced by Analog Devices Inc., is a dual 8-bit digital-to-analog converter (DAC) designed for high-speed performance and low power consumption. This component features a versatile 3-wire serial interface compatible with SPI, QSPI, and Microwire standards, making it easy to integrate with various digital systems. The AD7303BR operates from a single supply voltage ranging from 2.7V to 5.5V and is available in an 8-pin SOIC package, suitable for space-constrained applications.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 8 |
| Number of D/A Converters | 2 |
| Settling Time | 2µs |
| Output Type | Voltage - Buffered |
| Data Interface | SPI, QSPI, Microwire |
| Voltage - Supply, Analog | 2.7V to 5.5V |
| Voltage - Supply, Digital | 2.7V to 5.5V |
| INL/DNL (LSB) | ±1 (Max) |
| Architecture | Current Source |
| Operating Temperature Range | -40°C to 105°C |
Key Features
- Dual 8-bit voltage-output DAC with high-speed performance and low power consumption.
- Fast settling time of 2µs and buffered voltage output.
- SPI, QSPI, and Microwire compatible 3-wire serial interface with clock rates up to 30 MHz.
- Selectable internal or external voltage reference.
- Compact 8-SOIC package suitable for space-constrained applications.
- High-temperature operational range from -40°C to 105°C.
- Low power operation with full power-down mode consuming typically 80 nA.
- On-chip output buffer amplifiers allowing rail-to-rail operation.
Applications
- Telecommunications
- Industrial Control Systems
- Data Acquisition Systems
- Portable Battery-Powered Devices
- Automated Test Equipment
- Digital Gain and Offset Adjustment
- Programmable Voltage and Current Sources
- Programmable Attenuators
Q & A
- What is the AD7303BR? The AD7303BR is a dual 8-bit digital-to-analog converter produced by Analog Devices Inc.
- What is the supply voltage range for the AD7303BR? The AD7303BR operates from a single supply voltage ranging from 2.7V to 5.5V.
- What is the settling time of the AD7303BR? The settling time of the AD7303BR is 2µs.
- What data interface does the AD7303BR use? The AD7303BR uses an SPI, QSPI, and Microwire compatible 3-wire serial interface.
- What is the operating temperature range of the AD7303BR? The operating temperature range is from -40°C to 105°C.
- Is the AD7303BR suitable for portable applications? Yes, the AD7303BR is suitable for portable applications due to its low power consumption.
- Can the AD7303BR be powered down individually? Yes, each DAC can be powered down individually, and the device can be fully powered down to consume typically 80 nA.
- What package types are available for the AD7303BR? The AD7303BR is available in an 8-pin SOIC package.
- What are some common applications of the AD7303BR? Common applications include telecommunications, industrial control systems, data acquisition systems, and portable battery-powered devices.
- Is the AD7303BR still in production? The AD7303BR is an active product with ongoing manufacturer support and is not reported as nearing discontinuation.
