AD7233ANZ

Overview

The AD7233ANZ is a complete 12-bit voltage-output digital-to-analog converter (DAC) fabricated on LC2MOS technology. It integrates an output amplifier and a Zener voltage reference within an 8-lead Mini-DIP package, eliminating the need for external trims. The device supports a bipolar output range of –5 V to +5 V using two’s complement data format. It features a versatile 3-wire serial interface compatible with microcomputers and DSPs, allowing clock rates up to 5 MHz for a DAC update rate of 300 kHz. Power supplies range from 10.8 V to 16.5 V for both VDD and VSS.

Feature Summary

• Integrated 12-bit DACPORT with on-chip voltage reference and output amplifier
• 3-wire serial interface supporting up to 5 MHz SCLK for 300 kHz update rate
• Bipolar output range of –5 V to +5 V with ±1 LSB relative accuracy (A Version)
• Settling time of 10 µs max to within ±1/2 LSB

Applications

• Process Control systems
• Industrial Automation equipment
• Digital Signal Processing Systems
• Input/Output Ports

Procurement Notes

Verify the specific version suffix against the datasheet ordering guide. The 'N' in AD7233ANZ denotes the Plastic DIP (N-8) package option. Confirm that the A Version specifications, such as ±1 LSB relative accuracy, meet the design requirements compared to the B Version's ±1/2 LSB accuracy. Ensure power supply decoupling capacitors are included in the design for optimal performance.

Selection Notes

Select the AD7233ANZ for applications requiring a single-chip solution with integrated reference and buffer. The A Version offers ±1 LSB accuracy, while the B Version provides ±1/2 LSB. The device requires dual supplies between ±10.8 V and ±16.5 V. For unipolar output ranges or single-supply operation, consider the AD7243 instead. The serial interface simplifies connections to standard microcontrollers and DSP processors.

Part Context

The AD7233 belongs to Analog Devices' DACPORT family, designed for space-saving and reliability through monolithic integration. The ANZ suffix indicates the industrial temperature range (-40°C to +85°C) and the N-8 plastic DIP package. This component serves as a compact alternative to multi-chip DAC designs, reducing board space and assembly complexity for 12-bit conversion tasks.

Replacement Considerations

For unipolar or single-supply requirements, the AD7243 is the designated alternative. For higher accuracy needs within the same package, the AD7233BNZ (B Version) provides ±1/2 LSB relative accuracy. No direct pin-compatible substitutes with different architectures are listed in the provided documentation.