Overview
The AD573KD/+ is a 10-bit successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This integrated circuit is a complete ADC system, incorporating a digital-to-analog converter (DAC), voltage reference, clock, comparator, successive approximation register (SAR), and three-state output buffers, all fabricated on a single chip. The AD573KD/+ operates on dual supplies of +5 V and –12 V to –15 V, allowing it to accept analog inputs in the range of 0 V to +10 V or –5 V to +5 V. This device is known for its high accuracy and low power consumption, making it suitable for various applications requiring precise analog-to-digital conversion.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 10 bits |
| Conversion Time | 20 µs (typical) |
| Supply Voltage | +5 V and –12 V to –15 V |
| Analog Input Range | 0 V to +10 V or –5 V to +5 V |
| Power Dissipation | 800 mW |
| Temperature Range | 0°C to +70°C (AD573J and AD573K), –55°C to +125°C (AD573S) |
| Package Types | 20-pin hermetically sealed ceramic DIP, 20-pin plastic DIP, 20-pin leaded chip carrier |
Key Features
The AD573KD/+ boasts several key features that make it a robust and reliable choice for analog-to-digital conversion:
- No External Components Required: The AD573KD/+ can perform full accuracy 10-bit conversions without the need for external components.
- High Accuracy: The device ensures high accuracy with laser-trimmed SiCr thin-film resistor ladder networks and a temperature-compensated subsurface Zener reference.
- Flexible Output: The 10 bits of output data can be read as a single 10-bit word or as 8-bit and 2-bit words, controlled by the HIGH BYTE ENABLE (HBE) and LOW BYTE ENABLE (LBE) signals.
- Microprocessor Compatibility: The AD573KD/+ interfaces directly with many popular microprocessors without the need for external buffers or peripheral interface adapters.
Applications
The AD573KD/+ is suitable for a variety of applications that require precise and reliable analog-to-digital conversion, including:
- Industrial Control Systems: For monitoring and controlling industrial processes where high accuracy and reliability are crucial.
- Medical Devices: In medical equipment where precise measurement and conversion of analog signals are necessary.
- Aerospace and Defense: For applications requiring high accuracy and reliability over a wide temperature range.
- Automotive Systems: In automotive electronics where robust and accurate signal conversion is essential.
Q & A
- What is the resolution of the AD573KD/+?
The AD573KD/+ has a resolution of 10 bits.
- How long does the conversion process take?
The conversion time is typically 20 µs.
- What are the supply voltage requirements for the AD573KD/+?
The device operates on +5 V and –12 V to –15 V supplies.
- What is the analog input range for the AD573KD/+?
The analog input range is 0 V to +10 V or –5 V to +5 V.
- Does the AD573KD/+ require external components for full accuracy conversion?
No, the AD573KD/+ does not require external components to perform full accuracy 10-bit conversions.
- How does the AD573KD/+ ensure high accuracy?
The device uses laser-trimmed SiCr thin-film resistor ladder networks and a temperature-compensated subsurface Zener reference to ensure high accuracy.
- Can the AD573KD/+ interface directly with microprocessors?
Yes, the AD573KD/+ can interface directly with many popular microprocessors without external buffers or peripheral interface adapters.
- What are the package options available for the AD573KD/+?
The device is available in 20-pin hermetically sealed ceramic DIP, 20-pin plastic DIP, and 20-pin leaded chip carrier packages.
- What is the temperature range for the AD573KD/+?
The temperature range varies by version: 0°C to +70°C for AD573J and AD573K, and –55°C to +125°C for AD573S.
- What is the power dissipation of the AD573KD/+?
The power dissipation is 800 mW.
