Overview
The AD7918BRU is a 10-bit, high-speed, low-power, 8-channel successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. 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 for applications requiring high-speed data acquisition with low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Number of Channels | 8 single-ended analog inputs |
| Throughput Rate | Up to 1 MSPS |
| Power Supply Range | 2.7 V to 5.25 V |
| Current Consumption (max) | 2 mA @ 3 V, 2.7 mA @ 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 Range | −40°C to +85°C |
| Shutdown Current | 0.5 μA max |
Key Features
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP.
- No pipeline delays.
- 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.
- Channel sequencer for preprogrammed selection of channels to be converted sequentially.
- Shutdown mode with low current consumption.
- Qualified for automotive applications.
Applications
- Automotive systems requiring high-speed data acquisition.
- Industrial control and monitoring systems.
- Medical devices needing low power and high-speed ADCs.
- Aerospace and defense applications where reliability and performance are critical.
- General-purpose data acquisition systems.
Q & A
- What is the resolution of the AD7918BRU ADC?
The AD7918BRU is a 10-bit ADC.
- How many analog input channels does the AD7918BRU have?
The AD7918BRU has 8 single-ended analog input channels.
- What is the maximum throughput rate of the AD7918BRU?
The maximum throughput rate is up to 1 MSPS.
- What is the power supply range for the AD7918BRU?
The power supply range is from 2.7 V to 5.25 V.
- What is the current consumption of the AD7918BRU at maximum throughput rates?
The current consumption is 2 mA maximum with 3 V supplies and 2.7 mA maximum with 5 V supplies.
- What are the output coding options for the AD7918BRU?
The output coding options are straight binary or twos complement.
- What is the package type of the AD7918BRU?
The package type is a 20-lead TSSOP.
- What is the operating temperature range of the AD7918BRU?
The operating temperature range is −40°C to +85°C.
- Is the AD7918BRU qualified for automotive applications?
Yes, the AD7918BRU is qualified for automotive applications.
- What is the shutdown current of the AD7918BRU?
The shutdown current is 0.5 μA maximum.
