Overview
The AD7825BRUZ-REEL, produced by Analog Devices Inc., is a high-speed, microprocessor-compatible, 8-bit analog-to-digital converter (ADC). This component is part of the AD7822/AD7825/AD7829 family, which includes 1-, 4-, and 8-channel configurations. The AD7825BRUZ-REEL is specifically a 4-channel ADC, known for its fast conversion time and versatile operating capabilities.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Resolution | 8-bit |
| Conversion Time | 420 ns |
| Throughput Rate | Up to 2 MSPS |
| Supply Voltage | 3 V ± 10%, 5 V ± 10% |
| Input Ranges | 0 V to 2 V p-p (VDD = 3 V ± 10%), 0 V to 2.5 V p-p (VDD = 5 V ± 10%) |
| On-Chip Reference | 2.5 V (2% tolerance) |
| Package Type | 24-Lead TSSOP |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Fast conversion time of 420 ns, maximizing DSP processing time in real-time systems.
- Automatic power-down at the end of conversion, reducing power consumption.
- Flexible parallel interface with EOC (End of Conversion) pulse for standalone operation.
- Analog input span adjustment via the VMID pin.
- High speed parallel interface designed for easy interfacing to microprocessors and DSPs.
- On-chip reference of 2.5 V with a 2% tolerance.
- Track-and-hold amplifier and half-flash ADC architecture.
Applications
- Data acquisition systems.
- DSP front ends.
- Disk drives.
- Mobile communication systems and subsampling applications.
Q & A
- What is the conversion time of the AD7825BRUZ-REEL? The conversion time is 420 ns.
- What is the maximum throughput rate of the AD7825BRUZ-REEL? The maximum throughput rate is up to 2 MSPS.
- What are the supply voltage options for the AD7825BRUZ-REEL? The supply voltage options are 3 V ± 10% and 5 V ± 10%.
- What is the input range for the AD7825BRUZ-REEL when operating at 3 V and 5 V supply voltages? The input range is 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.
- Does the AD7825BRUZ-REEL have an on-chip reference? Yes, it has an on-chip reference of 2.5 V with a 2% tolerance.
- What is the package type of the AD7825BRUZ-REEL? The package type is a 24-Lead TSSOP.
- What is the operating temperature range of the AD7825BRUZ-REEL? The operating temperature range is -40°C to +85°C.
- How does the automatic power-down feature work? The automatic power-down feature is triggered by the logic level on the CONVST pin after the end of a conversion, when the EOC signal goes high. If the logic level is low, the ADC powers down.
- What types of interfaces does the AD7825BRUZ-REEL support? It supports a high-speed parallel interface designed for easy interfacing to microprocessors and DSPs.
- What are some common applications of the AD7825BRUZ-REEL? Common applications include data acquisition systems, DSP front ends, disk drives, and mobile communication systems.
