Overview
The AD7822BRUZ-REEL is a high-speed, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7822 series, which includes microprocessor-compatible ADCs with a maximum throughput of 2 million samples per second (MSPS). The AD7822BRUZ-REEL is housed in a 20-lead TSSOP package and is designed for various high-speed data acquisition applications.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Resolution | 8 bits | The number of bits the ADC can convert the analog signal into. |
| Sampling Rate | 2 MSPS | The maximum rate at which the ADC can sample the analog input. |
| Conversion Time | 420 ns | The time required for the ADC to complete one conversion cycle. |
| Input Range | 0 V to 2 V p-p (VDD = 3 V ± 10%), 0 V to 2.5 V p-p (VDD = 5 V ± 10%) | The range of analog input voltages the ADC can handle. |
| Supply Voltage | 3 V ± 10%, 5 V ± 10% | The range of supply voltages the ADC can operate with. |
| Package Type | 20-lead TSSOP | The physical package of the component. |
| Operating Temperature | -40°C to +85°C | The temperature range over which the component is guaranteed to operate. |
| RoHS Compliance | Yes | Compliance with the Restriction of Hazardous Substances (RoHS) directive. |
Key Features
- Half-Flash Conversion Technique: Uses a half-flash ADC method to achieve an 8-bit result, combining a coarse conversion for the four most significant bits (MSBs) and a fine conversion for the four least significant bits (LSBs).
- On-Chip Reference and Track-and-Hold: Includes an on-chip 2.5 V reference and a track-and-hold amplifier to ensure accurate and stable conversions.
- Flexible Parallel Interface: Features a high-speed parallel interface with an End-of-Conversion (EOC) pulse, allowing for standalone operation.
- Automatic Power-Down: Automatically powers down at the end of each conversion to reduce power consumption.
- Input Offset Adjust: Available with input offset adjust for better accuracy in certain applications).
Applications
- Data Acquisition Systems: Suitable for high-speed data acquisition systems due to its fast conversion rate and accurate results).
- DSP Front Ends: Can be used as a front-end converter in digital signal processing (DSP) systems).
- Disk Drives: Applicable in disk drive systems where high-speed and accurate data conversion is necessary).
- Mobile Communication Systems: Used in mobile communication systems, particularly in subsampling applications).
Q & A
- What is the resolution of the AD7822BRUZ-REEL ADC?
The AD7822BRUZ-REEL has an 8-bit resolution.
- What is the maximum sampling rate of the AD7822BRUZ-REEL?
The maximum sampling rate is 2 million samples per second (MSPS).
- What is the conversion time of the AD7822BRUZ-REEL?
The conversion time is 420 nanoseconds.
- What are the input voltage ranges for the AD7822BRUZ-REEL?
The input voltage ranges are 0 V to 2 V p-p for a 3 V supply and 0 V to 2.5 V p-p for a 5 V supply.
- What is the operating temperature range of the AD7822BRUZ-REEL?
The operating temperature range is -40°C to +85°C.
- Is the AD7822BRUZ-REEL RoHS compliant?
Yes, the AD7822BRUZ-REEL is RoHS compliant.
- What type of conversion technique does the AD7822BRUZ-REEL use?
The AD7822BRUZ-REEL uses a half-flash conversion technique.
- Does the AD7822BRUZ-REEL have an on-chip reference and track-and-hold amplifier?
Yes, it includes an on-chip 2.5 V reference and a track-and-hold amplifier.
- What kind of interface does the AD7822BRUZ-REEL have?
The AD7822BRUZ-REEL features a high-speed parallel interface with an EOC pulse.
- What are some common applications of the AD7822BRUZ-REEL?
Common applications include data acquisition systems, DSP front ends, disk drives, and mobile communication systems.
