Overview
The AD7243ANZ, produced by Analog Devices Inc., is a complete 12-bit, voltage output, digital-to-analog converter (DAC) integrated on a monolithic CMOS chip. This device features an on-chip voltage reference and an output amplifier, making it a self-contained solution for various applications. The AD7243ANZ is designed for high reliability and performance, with no external trims required to achieve full specified performance. It is available in 16-lead DIP and 16-lead SOIC packages, ensuring versatility in design and implementation.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Output Voltage Ranges | 0 V to +5 V, 0 V to +10 V, ±5 V (with dual supplies) |
| Data Format | Natural binary (unipolar), offset binary or two’s complement (bipolar) |
| Supply Voltage | ±10.8V to ±16.5V (analog), VDD and VSS for digital |
| DAC Update Rate | 300 kHz |
| Serial Interface | SPI, up to 5 MHz data rate |
| Power Dissipation | Typically 100 mW |
| Package Types | 16-lead DIP, 16-lead SOIC |
Key Features
- Complete 12-bit DAC with on-chip voltage reference and output amplifier.
- Single or dual supply operation with selectable output voltage ranges.
- Fast and versatile serial interface compatible with microcomputers and digital signal processors.
- Serial data output capability for daisy-chaining in multi-DAC systems.
- CLR function for power-on reset to a known voltage level.
- Low power dissipation and high reliability due to single-chip design.
- Small size with 16-lead DIP or SOIC packaging.
Applications
- Process Control
- Industrial Automation
- Digital Signal Processing Systems
- Input/Output Ports
Q & A
- What is the resolution of the AD7243ANZ DAC?
The AD7243ANZ has a resolution of 12 bits.
- What are the available output voltage ranges for the AD7243ANZ?
The output voltage ranges are 0 V to +5 V, 0 V to +10 V, and ±5 V with dual supplies.
- What data formats are supported by the AD7243ANZ?
The device supports natural binary for unipolar ranges and either offset binary or two’s complement for bipolar ranges.
- What is the maximum DAC update rate of the AD7243ANZ?
The DAC update rate is up to 300 kHz.
- What type of serial interface does the AD7243ANZ use?
The device uses an SPI serial interface with data rates up to 5 MHz.
- How does the CLR function work on the AD7243ANZ?
The CLR function sets the output to 0 V in unipolar ranges and two’s complement bipolar range, or to –REFIN in offset binary bipolar range, useful for power-on reset.
- What are the typical power dissipation and supply voltage requirements for the AD7243ANZ?
The typical power dissipation is 100 mW, and the supply voltage ranges from ±10.8V to ±16.5V for analog and VDD and VSS for digital.
- In what packages is the AD7243ANZ available?
The device is available in 16-lead DIP and 16-lead SOIC packages.
- What are some common applications of the AD7243ANZ?
Common applications include process control, industrial automation, digital signal processing systems, and input/output ports.
- How does the serial data output capability of the AD7243ANZ facilitate multi-DAC systems?
The serial data output allows for daisy-chaining in multi-DAC systems, enabling simultaneous updates of all DACs using a simple 4-wire interface.
