Overview
The AD7922AUJ-REEL7 is a 12-bit, dual-channel, successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single power supply ranging from 2.35 V to 5.25 V and features a high throughput rate of up to 1 MSPS. It is designed for low power consumption and high-speed data acquisition, making it suitable for a variety of applications including battery-powered systems, medical instruments, and mobile communications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 2 |
| Power Supply Range | 2.35 V to 5.25 V |
| Throughput Rate | Up to 1 MSPS |
| Power Consumption | 4.8 mW (typ) at 1 MSPS with 3 V supply, 15.5 mW (typ) at 1 MSPS with 5 V supply |
| Input Range | 0 to VDD |
| SNR at 100 kHz Input Frequency | 71 dB minimum |
| Package Type | 8-lead TSOT-23 |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Fast throughput rate: Up to 1 MSPS
- Low power consumption: 4.8 mW (typ) at 1 MSPS with 3 V supply, 15.5 mW (typ) at 1 MSPS with 5 V supply
- Wide input bandwidth: Can handle input frequencies in excess of 6 MHz
- Flexible power/serial clock speed management
- No pipeline delays
- High speed serial interface: SPI/QSPI/MICROWIRE/DSP compatible
- Standby mode: 1 µA maximum
- Daisy-chain mode
- Low noise, wide bandwidth track-and-hold amplifier
Applications
- Battery-powered systems
- 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-REEL7 ADC?
The AD7922AUJ-REEL7 has a resolution of 12 bits. - How many channels does the AD7922AUJ-REEL7 support?
The AD7922AUJ-REEL7 supports 2 channels. - What is the power supply range for the AD7922AUJ-REEL7?
The power supply range is from 2.35 V to 5.25 V. - What is the maximum throughput rate of the AD7922AUJ-REEL7?
The maximum throughput rate is up to 1 MSPS. - What is the typical power consumption of the AD7922AUJ-REEL7 at 1 MSPS with a 3 V supply?
The typical power consumption is 4.8 mW. - What is the input range for the analog inputs of the AD7922AUJ-REEL7?
The input range is from 0 to VDD. - What is the minimum SNR at a 100 kHz input frequency for the AD7922AUJ-REEL7?
The minimum SNR is 71 dB. - What type of package does the AD7922AUJ-REEL7 come in?
The AD7922AUJ-REEL7 comes in an 8-lead TSOT-23 package. - What is the operating temperature range for the AD7922AUJ-REEL7?
The operating temperature range is from -40°C to +85°C. - Is the AD7922AUJ-REEL7 compatible with high-speed serial interfaces?
Yes, it is compatible with SPI/QSPI/MICROWIRE/DSP interfaces.
