Overview
The AD7233BNZ is a 12-bit, voltage-output, digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is integrated into an 8-lead mini-DIP package and includes an output amplifier and a Zener voltage reference. It does not require external trims to achieve full specified performance. The AD7233BNZ features a fast and versatile serial interface, making it easy to connect to microcomputers and digital signal processors with serial ports. The device operates with a bipolar output range of -5V to +5V and uses a 2's complement data format.
Key Specifications
| Parameter | Unit | Test Conditions/Comments |
|---|---|---|
| Resolution | 12 Bits | |
| Relative Accuracy | ±1/2 LSB max | |
| Differential Nonlinearity | ±0.9 LSB max | |
| Bipolar Zero Error | ±6 LSB max | |
| Full-Scale Error | ±8 LSB max | |
| Full-Scale Temperature Coefficient | ±30 ppm of FSR/°C typ | |
| Input High Voltage, VINH | 2.4 V min | |
| Input Low Voltage, VINL | 0.8 V max | |
| Input Current IIN | ±1 µA max | VIN = 0 V to VDD |
| Input Capacitance | 8 pF max | |
| Output Voltage Range | ±5 V DC | |
| Output Impedance | 0.5 Ω typ |
Key Features
- 12-Bit Resolution: Provides high precision in digital-to-analog conversion.
- Bipolar Output Range: Offers an output voltage range of -5V to +5V without external components.
- Serial Interface: Features a fast and versatile serial interface compatible with microcomputers and digital signal processors, with data transfer rates up to 5 MHz.
- Internal Reference and Amplifier: Includes a Zener voltage reference and a noninverting CMOS amplifier, eliminating the need for external components.
- Automatic Update Mode: The DAC can be updated automatically on the 16th falling SCLK pulse if LDAC is tied permanently low.
- Compact Package: Packaged in an 8-lead mini-DIP, making it suitable for space-constrained applications.
Applications
- Industrial Control Systems: Suitable for precision control and measurement applications.
- Aerospace and Defense: Used in systems requiring high reliability and precision.
- Medical Devices: Ideal for medical equipment that demands accurate and stable analog outputs.
- Automotive Systems: Can be used in automotive control systems that require precise analog signals.
- Test and Measurement Equipment: Utilized in various test and measurement instruments for accurate analog output generation.
Q & A
- What is the resolution of the AD7233BNZ?
The AD7233BNZ has a 12-bit resolution.
- What is the output voltage range of the AD7233BNZ?
The output voltage range is -5V to +5V.
- What type of data format does the AD7233BNZ use?
The AD7233BNZ uses a 2's complement data format.
- How is the DAC updated in the AD7233BNZ?
The DAC can be updated by bringing the LDAC input low or by tying LDAC permanently low, which updates the DAC on the 16th falling SCLK pulse.
- What is the maximum data transfer rate of the AD7233BNZ?
The maximum data transfer rate is up to 5 MHz.
- Does the AD7233BNZ require external trims for full performance?
No, the AD7233BNZ does not require external trims to achieve full specified performance.
- What type of package is the AD7233BNZ available in?
The AD7233BNZ is available in an 8-lead mini-DIP package.
- What is the typical output impedance of the AD7233BNZ?
The typical output impedance is 0.5 Ω.
- How is the power supply decoupling recommended for the AD7233BNZ?
The VDD and VSS lines should each be decoupled to GND using 0.1 µF capacitors.
- What is the full-scale temperature coefficient of the AD7233BNZ?
The full-scale temperature coefficient is ±30 ppm of FSR/°C typ.
