Overview
The AD7243BN, 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 includes an output amplifier and a Zener voltage reference, eliminating the need for external trims to achieve full specified performance. The AD7243BN is designed for reliability and efficiency, making it suitable for various industrial and automation applications.
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) |
| Serial Interface | Up to 5 MHz data rate, 300 kHz DAC update rate |
| Power Dissipation | Typical 100 mW |
| Nonlinearity | ±1/2 LSB (TMIN to TMAX) |
| Package Types | 16-lead DIP, 16-lead SOIC |
| Operating Temperature | –40°C to +85°C |
Key Features
- Complete 12-bit DAC on a single chip, enhancing reliability over multichip designs.
- Single or dual supply operation with selectable output voltage ranges.
- Fast and versatile serial interface for easy connection to microcomputers and 16-bit digital signal processors.
- Serial data output capability for daisy-chaining in multi-DAC systems.
- CLR function for setting the output to a known voltage level, useful as a power-on reset.
- Low power dissipation and high accuracy with ±1/2 LSB nonlinearity.
- Fabricated on Linear Compatible CMOS (LC2MOS) process.
Applications
- Process Control
- Industrial Automation
- Digital Signal Processing Systems
- Input/Output Ports
Q & A
- What is the resolution of the AD7243BN DAC?
The AD7243BN has a resolution of 12 bits.
- What are the available output voltage ranges for the AD7243BN?
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 AD7243BN?
The device supports natural binary in unipolar ranges and either offset binary or two's complement in bipolar ranges.
- What is the maximum serial data rate for the AD7243BN?
The serial data rate can be up to 5 MHz, allowing a DAC update rate of 300 kHz.
- How does the CLR function work on the AD7243BN?
The CLR function sets the output to 0 V in unipolar ranges and in the two's complement bipolar range, or to –REFIN in the offset binary bipolar range, useful as a power-on reset.
- What are the typical power dissipation and nonlinearity of the AD7243BN?
The typical power dissipation is 100 mW, and the nonlinearity is ±1/2 LSB from TMIN to TMAX.
- In what packages is the AD7243BN available?
The device is available in 16-lead DIP and 16-lead SOIC packages.
- What is the operating temperature range of the AD7243BN?
The operating temperature range is –40°C to +85°C.
- Can the AD7243BN be used in multi-DAC systems?
- What technology process is the AD7243BN fabricated on?
The device is fabricated on Linear Compatible CMOS (LC2MOS) process.
