Overview
The AD7921AUJZ-R2 is a high-performance, 12-bit successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD7921 series and is known for its low power consumption and high throughput rate. It operates from a single power supply ranging from 2.35 V to 5.25 V, making it versatile for various applications. The AD7921AUJZ-R2 features a wide input bandwidth and is designed for use in systems requiring high-speed data acquisition with minimal power dissipation.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Throughput Rate | Up to 250 kSPS |
| Power Supply Range | 2.35 V to 5.25 V |
| Power Consumption | 4 mW typ at 250 kSPS with 3 V supplies, 13.5 mW typ at 250 kSPS with 5 V supplies |
| Input Range | 0 to VDD |
| Input Bandwidth | Exceeds 6 MHz |
| Interface | SPI, QSPI, MICROWIRE, DSP compatible |
| Package Type | 8-lead TSOT |
| Operating Temperature Range | -40°C to +85°C |
| Standby Current | 1 μA maximum |
Key Features
- Fast throughput rate of up to 250 kSPS
- Low power consumption: 4 mW at 250 kSPS with 3 V supplies and 13.5 mW at 250 kSPS with 5 V supplies
- Wide input bandwidth exceeding 6 MHz
- No pipeline delays
- Flexible power and serial clock speed management
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP
- Standby mode with a maximum current of 1 μA
- Internal reference taken from VDD for the widest 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 AD7921AUJZ-R2?
The AD7921AUJZ-R2 has a resolution of 12 bits. - What is the maximum throughput rate of the AD7921AUJZ-R2?
The maximum throughput rate is up to 250 kSPS. - What is the power supply range for the AD7921AUJZ-R2?
The power supply range is from 2.35 V to 5.25 V. - How much power does the AD7921AUJZ-R2 consume at 250 kSPS with a 3 V supply?
The power consumption is typically 4 mW at 250 kSPS with a 3 V supply. - What is the input range for the AD7921AUJZ-R2?
The input range is from 0 to VDD. - What is the input bandwidth of the AD7921AUJZ-R2?
The input bandwidth exceeds 6 MHz. - What types of interfaces does the AD7921AUJZ-R2 support?
The AD7921AUJZ-R2 supports SPI, QSPI, MICROWIRE, and DSP compatible interfaces. - What is the package type of the AD7921AUJZ-R2?
The package type is 8-lead TSOT. - What is the operating temperature range for the AD7921AUJZ-R2?
The operating temperature range is from -40°C to +85°C. - What is the standby current of the AD7921AUJZ-R2?
The standby current is a maximum of 1 μA.
