Overview
The AD573SD/883B is a 10-bit successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is a complete ADC system, integrating a digital-to-analog converter (DAC), voltage reference, clock, comparator, successive approximation register (SAR), and three-state output buffers on a single chip. It operates on dual supplies of +5 V and –12 V to –15 V, allowing it to accept analog inputs in both unipolar (0 V to +10 V) and bipolar (–5 V to +5 V) ranges. The AD573SD/883B is known for its high accuracy and reliability, making it suitable for a wide range of applications, including those requiring military-grade specifications.
Key Specifications
| Parameter | AD573J | AD573K | AD573S | Units |
|---|---|---|---|---|
| Resolution | 10 | 10 | 10 | Bits |
| Relative Accuracy | ±1 | ±1/2 | ±1 | LSB |
| Full-Scale Calibration | ±2 | ±2 | ±2 | LSB |
| Conversion Time | 20 µs (typ) | µs | ||
| Operating Temperature Range | 0°C to +70°C | 0°C to +70°C | –55°C to +125°C | °C |
| Supply Voltages | +5 V, –12 V to –15 V | V | ||
| Package Type | 20-pin hermetically sealed ceramic DIP, 20-pin plastic DIP, 20-pin leaded chip carrier | |||
Key Features
- Complete ADC System: Includes DAC, voltage reference, clock, comparator, SAR, and three-state output buffers on a single chip.
- High Accuracy: Ensures true 10-bit accuracy with no missing codes over the entire operating temperature range.
- Dual Supply Operation: Operates on +5 V and –12 V to –15 V supplies, allowing for both unipolar and bipolar analog input ranges.
- Fast Conversion Time: Completes a conversion cycle in 20 µs (typical).
- Military Grade: The AD573S version is compliant with MIL-STD-883 specifications, ensuring high reliability in harsh environments.
- Flexible Output: The 10 bits of output data can be read as a 10-bit word or as 8- and 2-bit words).
Applications
- Industrial Automation: Suitable for precision measurement and control systems in industrial environments.
- Military and Aerospace: Compliant with MIL-STD-883, making it ideal for military and aerospace applications where high reliability is crucial.
- Medical Devices: Used in medical equipment requiring high accuracy and reliability.
- Test and Measurement: Employed in various test and measurement instruments due to its high precision and fast conversion time.
Q & A
- What is the resolution of the AD573SD/883B ADC?
The AD573SD/883B has a resolution of 10 bits).
- What are the operating supply voltages for the AD573SD/883B?
The device operates on +5 V and –12 V to –15 V supplies).
- How long does a conversion cycle take for the AD573SD/883B?
A conversion cycle typically takes 20 µs).
- Is the AD573SD/883B suitable for military applications?
Yes, the AD573S version is compliant with MIL-STD-883 specifications, making it suitable for military applications).
- What types of analog inputs can the AD573SD/883B handle?
The device can handle both unipolar (0 V to +10 V) and bipolar (–5 V to +5 V) analog inputs).
- Does the AD573SD/883B require external components for full accuracy conversion?
No, the AD573SD/883B does not require external components to perform a full accuracy 10-bit conversion).
- What are the different package types available for the AD573SD/883B?
The device is available in 20-pin hermetically sealed ceramic DIP, 20-pin plastic DIP, and 20-pin leaded chip carrier packages).
- How does the AD573SD/883B ensure high accuracy over temperature?
The device uses laser-trimmed high stability SiCr thin-film resistor ladder network and a temperature-compensated subsurface Zener reference to ensure high accuracy over temperature).
- Can the output data of the AD573SD/883B be read in different formats?
Yes, the 10 bits of output data can be read as a 10-bit word or as 8- and 2-bit words).
- What is the significance of the HIGH BYTE ENABLE (HBE) and LOW BYTE ENABLE (LBE) pins on the AD573SD/883B?
The HBE and LBE pins control the 8-bit and 2-bit three-state output buffers, respectively).
