Overview
The AD9235BRU-20 is a high-performance, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is designed for demanding applications requiring high-speed and high-precision signal conversion. It features a multistage differential pipelined architecture with output error correction logic, ensuring 12-bit accuracy at a sampling rate of 20 million samples per second (MSPS). The AD9235BRU-20 is suitable for a variety of applications, including communications, imaging, and medical ultrasound, due to its wide bandwidth and ability to handle both differential and single-ended input configurations.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Resolution | Bits | 12 | 12 | 12 |
| Sampling Rate | MSPS | 20 | - | - |
| Offset Error | % FSR | ±0.30 | ±1.20 | ±0.50 |
| Gain Error | % FSR | ±0.30 | ±2.40 | ±0.50 |
| Differential Nonlinearity (DNL) | LSB | ±0.35 | ±0.65 | ±0.40 |
| Input Type | - | Differential, Single Ended | - | - |
| Operating Temperature | °C | -40 | - | 85 |
| Voltage - Supply, Analog | V | 2.7 | - | 3.6 |
| Voltage - Supply, Digital | V | 2.25 | - | 3.6 |
| Package | - | 28-TSSOP (0.173", 4.40mm Width) | - | - |
Key Features
- Pipelined Architecture: The AD9235BRU-20 uses a multistage differential pipelined architecture with output error correction logic to ensure high accuracy and performance.
- High-Speed Sampling: Supports sampling rates of up to 20 MSPS, making it suitable for high-speed applications.
- Flexible Input Configuration: Can handle both differential and single-ended input configurations, offering versatility in system design.
- Wide Operating Temperature Range: Operates from -40°C to +85°C, ensuring reliability in various environmental conditions.
- Low Power Consumption: Designed to minimize power consumption while maintaining high performance.
- Duty Cycle Stabilizer (DCS): Compensates for wide variations in the clock duty cycle, ensuring stable ADC performance.
- Out-of-Range (OTR) Signal: Indicates an overflow condition, helping in data integrity and error handling.
Applications
The AD9235BRU-20 is suitable for a variety of demanding applications, including:
- Communications: High-speed data conversion is crucial in communication systems, and the AD9235BRU-20 meets these requirements.
- Imaging: Used in medical and industrial imaging systems where high-resolution and high-speed data conversion are necessary.
- Medical Ultrasound: The high precision and speed of the AD9235BRU-20 make it an ideal choice for medical ultrasound equipment.
- Industrial Automation: Suitable for industrial applications requiring precise and fast data conversion.
Q & A
- What is the resolution of the AD9235BRU-20?
The AD9235BRU-20 has a resolution of 12 bits.
- What are the sampling rates supported by the AD9235BRU-20?
The AD9235BRU-20 supports a sampling rate of up to 20 MSPS.
- What types of input configurations are supported by the AD9235BRU-20?
The AD9235BRU-20 can handle both differential and single-ended input configurations.
- What is the operating temperature range of the AD9235BRU-20?
The operating temperature range is from -40°C to +85°C.
- What is the package type of the AD9235BRU-20?
The AD9235BRU-20 is packaged in a 28-TSSOP (0.173", 4.40mm Width).
- Does the AD9235BRU-20 have a duty cycle stabilizer?
Yes, the AD9235BRU-20 includes a duty cycle stabilizer (DCS) to compensate for variations in the clock duty cycle.
- What is the purpose of the out-of-range (OTR) signal in the AD9235BRU-20?
The out-of-range (OTR) signal indicates an overflow condition, helping in data integrity and error handling.
- What are some common applications of the AD9235BRU-20?
Common applications include communications, imaging, medical ultrasound, and industrial automation.
- What is the architecture of the AD9235BRU-20?
The AD9235BRU-20 uses a multistage differential pipelined architecture with output error correction logic.
- Can the AD9235BRU-20 be used in multiplexed systems?
Yes, the AD9235BRU-20 is suitable for multiplexed systems that switch full-scale voltage levels in successive channels.
