Overview
The AD7825BRU is a high-speed, microprocessor-compatible, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7822/AD7825/AD7829 family, which offers 1-, 4-, and 8-channel configurations. The AD7825BRU specifically features a 4-channel setup. It is designed for high-speed data acquisition and is suitable for various applications requiring fast conversion times and robust performance.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 4 |
| Resolution | 8-bit |
| Conversion Time | 420 ns |
| Maximum Throughput | 2 MSPS |
| Operating Supply Voltage | 3 V ± 10%, 5 V ± 10% |
| Analog 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%) |
| Reference Voltage | 2.5 V (2% tolerance) |
| Package Type | 24-Lead TSSOP (RU-24) |
| Operating Temperature Range | −40°C to +85°C |
| Accuracy | ±0.75 LSB |
Key Features
- High-speed conversion with a maximum throughput of 2 MSPS.
- Flexible parallel interface with End-of-Conversion (EOC) pulse for standalone operation.
- Automatic power-down at the end of conversion to reduce power consumption.
- On-chip reference voltage of 2.5 V with a 2% tolerance.
- Track-and-hold amplifier and half-flash ADC architecture.
- Analog input span adjustment via the VMID pin.
- Wide operating supply range and robust power supply rejection.
Applications
- Data acquisition systems.
- DSP front ends.
- Disk drives.
- Mobile communication systems.
- Subsampling applications.
Q & A
- What is the maximum conversion time of the AD7825BRU? The maximum conversion time is 420 ns.
- How many channels does the AD7825BRU have? The AD7825BRU has 4 channels.
- What is the resolution of the AD7825BRU? The resolution is 8-bit.
- What are the operating supply voltage ranges for the AD7825BRU? The operating supply voltage ranges are 3 V ± 10% and 5 V ± 10%.
- What is the maximum throughput of the AD7825BRU? The maximum throughput is 2 MSPS.
- What type of package is the AD7825BRU available in? The AD7825BRU is available in a 24-Lead TSSOP (RU-24) package.
- What is the operating temperature range of the AD7825BRU? The operating temperature range is −40°C to +85°C.
- Does the AD7825BRU have an on-chip reference voltage? Yes, it has an on-chip reference voltage of 2.5 V with a 2% tolerance.
- What is the accuracy of the AD7825BRU? The accuracy is ±0.75 LSB.
- What are some typical applications of the AD7825BRU? Typical applications include data acquisition systems, DSP front ends, disk drives, mobile communication systems, and subsampling applications.
