Overview
The AD7922AUJ-R2 is a 12-bit, high-speed, low-power, 2-channel successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 2.35 V to 5.25 V power supply and features throughput rates of up to 1 MSPS. It is designed for applications requiring high speed and low power consumption, making it suitable for a variety of electronic systems.
Key Specifications
| Specification | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Rate | Up to 1 MSPS |
| Power Supply Range | 2.35 V to 5.25 V |
| Analog Input Channels | 2 single-ended |
| Analog Input Range | 0 to VDD |
| Serial Interface | SPI/QSPI/MICROWIRE/DSP compatible |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | 8-lead TSOT |
| Standby Current | 1 µA maximum |
Key Features
- High speed serial interface: SPI/QSPI/MICROWIRE/DSP compatible
- No pipeline delays
- Flexible power/serial clock speed management
- Low noise, wide bandwidth track-and-hold amplifier
- Daisy-chain mode for multiple ADCs
- Low power dissipation at high throughput rates
- Internal reference from VDD for wide dynamic input range
Applications
- Battery-powered systems
- Personal digital assistants
- Medical instruments
- Mobile communications
- Instrumentation and control systems
- Data acquisition systems
- High speed modems
- Optical sensors
Q & A
- What is the resolution of the AD7922AUJ-R2 ADC?
The AD7922AUJ-R2 has a resolution of 12 bits. - What is the maximum sampling rate of the AD7922AUJ-R2?
The maximum sampling rate is up to 1 MSPS. - What is the power supply range for the AD7922AUJ-R2?
The power supply range is from 2.35 V to 5.25 V. - How many analog input channels does the AD7922AUJ-R2 have?
The AD7922AUJ-R2 has 2 single-ended analog input channels. - What is the operating temperature range of the AD7922AUJ-R2?
The operating temperature range is from -40°C to +85°C. - What type of serial interface does the AD7922AUJ-R2 support?
The AD7922AUJ-R2 supports SPI/QSPI/MICROWIRE/DSP compatible serial interfaces. - Can multiple AD7922AUJ-R2 devices be connected in a daisy chain?
Yes, multiple devices can be connected in a daisy-chain mode. - What is the standby current of the AD7922AUJ-R2?
The standby current is 1 µA maximum. - What is the package type of the AD7922AUJ-R2?
The package type is 8-lead TSOT. - What are some typical applications of the AD7922AUJ-R2?
Typical applications include battery-powered systems, medical instruments, mobile communications, and data acquisition systems.
