Overview
The AD7908BRU, produced by Analog Devices Inc., is an 8-bit, high-speed, low-power, 8-channel successive approximation analog-to-digital converter (ADC). This device operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 1 MSPS. It is designed with advanced techniques to achieve very low power dissipation, making it suitable for a variety of applications requiring high-speed data conversion with minimal power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8-bit |
| Number of Channels | 8 single-ended analog inputs |
| Throughput Rate | Up to 1 MSPS |
| Power Supply | 2.7 V to 5.25 V |
| Power Consumption | 2 mA max at 3 V, 2.7 mA max at 5 V |
| Input Range | 0 V to REFIN or 0 V to 2 × REFIN |
| Output Coding | Straight binary or twos complement |
| Package Type | 20-lead TSSOP |
| Operating Temperature | −40°C to +85°C |
| Interface Compatibility | SPI®, QSPI™, MICROWIRE™, DSP compatible |
Key Features
- High speed serial interface compatible with SPI®, QSPI™, MICROWIRE™, and DSP.
- No pipeline delays, allowing for real-time data acquisition.
- Low noise, wide bandwidth track-and-hold amplifier capable of handling input frequencies in excess of 8 MHz.
- Flexible power and serial clock speed management.
- Shutdown mode with a maximum current of 0.5 μA.
- Channel sequencer for preprogrammed selection of channels to be converted sequentially.
Applications
The AD7908BRU is suitable for various applications requiring high-speed, low-power analog-to-digital conversion. These include:
- Automotive systems, where it is qualified for use.
- Industrial control systems.
- Medical devices requiring precise and fast data conversion.
- Consumer electronics needing efficient and reliable ADCs.
Q & A
- What is the resolution of the AD7908BRU?
The AD7908BRU has an 8-bit resolution. - How many analog input channels does the AD7908BRU have?
The AD7908BRU has 8 single-ended analog input channels. - What is the maximum throughput rate of the AD7908BRU?
The maximum throughput rate is up to 1 MSPS. - What is the power supply range for the AD7908BRU?
The power supply range is from 2.7 V to 5.25 V. - How much power does the AD7908BRU consume at maximum throughput rates?
At maximum throughput rates, it consumes 2 mA max with 3 V supplies and 2.7 mA max with 5 V supplies. - What types of output coding does the AD7908BRU support?
The AD7908BRU supports straight binary and twos complement output coding. - What is the package type of the AD7908BRU?
The package type is a 20-lead TSSOP. - What is the operating temperature range for the AD7908BRU?
The operating temperature range is from −40°C to +85°C. - Is the AD7908BRU compatible with automotive applications?
Yes, the AD7908BRU is qualified for automotive applications. - Does the AD7908BRU have any pipeline delays?
No, the AD7908BRU does not have any pipeline delays.
