Overview
The AD7820LRZ-REEL is a high-speed, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component utilizes a half-flash conversion technique, enabling a conversion time of 1.36 µs. It is designed for microprocessor compatibility and features a single +5 V supply, making it versatile for various applications. The AD7820LRZ-REEL is packaged in a 20-lead SOIC (Wide) and is available in tape and reel format, which is convenient for automated assembly processes.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | AD7820LRZ-REEL |
| Manufacturer | Analog Devices Inc. |
| Description | IC ADC 8BIT FLASH 20SOIC |
| Voltage - Supply, Digital | 5V |
| Voltage - Supply, Analog | 5V |
| Package / Case | 20-SOIC (0.295', 7.50mm Width) |
| Operating Temperature | -40°C ~ 85°C |
| Number of Inputs | 1 |
| Number of Bits | 8 |
| Number of A/D Converters | 1 |
| Mounting Type | Surface Mount |
| Input Type | Single Ended |
| Data Interface | Parallel |
| Configuration | S/H-ADC |
| Architecture | Flash |
| Conversion Time | 1.36 µs |
| Reference Type | External |
Key Features
- High-Speed Conversion: The AD7820LRZ-REEL achieves a conversion time of 1.36 µs using a half-flash conversion technique.
- Microprocessor Compatibility: Designed to interface directly with microprocessors, appearing as a memory location or I/O port without the need for external interfacing logic.
- Single +5 V Supply: Operates with a single +5 V supply for both analog and digital sections.
- Input Sampling Circuitry: The input is tracked and held by the input sampling circuitry, eliminating the need for an external sample-and-hold for signals with slew rates less than 100 mV/µs.
- Latched, Three-State Output Buffer Circuitry: Allows direct connection to a microprocessor data bus or system input port.
- Non-Three State Overflow Output: Enables cascading of devices to achieve higher resolution.
Applications
The AD7820LRZ-REEL is suitable for a variety of applications that require high-speed analog-to-digital conversion. These include:
- Data Acquisition Systems: Ideal for systems that need rapid conversion of analog signals to digital data.
- Embedded Systems: Compatible with microprocessors, making it a good choice for embedded systems requiring ADC functionality.
- Industrial Control Systems: Can be used in industrial environments where fast and accurate analog-to-digital conversion is necessary.
- Medical Devices: Suitable for medical devices that require high-speed ADCs for signal processing.
Q & A
- What is the conversion time of the AD7820LRZ-REEL?
The conversion time of the AD7820LRZ-REEL is 1.36 µs.
- What is the supply voltage for the AD7820LRZ-REEL?
The AD7820LRZ-REEL operates with a single +5 V supply for both analog and digital sections.
- What type of input does the AD7820LRZ-REEL use?
The AD7820LRZ-REEL uses single-ended inputs.
- Is the AD7820LRZ-REEL RoHS compliant?
- What is the operating temperature range of the AD7820LRZ-REEL?
The operating temperature range is -40°C to 85°C.
- Does the AD7820LRZ-REEL require an external sample-and-hold circuit?
No, the input is tracked and held by the input sampling circuitry, eliminating the need for an external sample-and-hold for signals with slew rates less than 100 mV/µs.
- How does the AD7820LRZ-REEL interface with microprocessors?
The AD7820LRZ-REEL is designed to interface directly with microprocessors, appearing as a memory location or I/O port without the need for external interfacing logic.
- What is the package type of the AD7820LRZ-REEL?
The AD7820LRZ-REEL is packaged in a 20-lead SOIC (Wide) and is available in tape and reel format.
- Can the AD7820LRZ-REEL be cascaded for higher resolution?
- What is the data interface type of the AD7820LRZ-REEL?
The AD7820LRZ-REEL uses a parallel data interface.
