Overview
The AD9235BRU-65 is a high-performance, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed for demanding applications requiring high-speed and high-precision analog-to-digital conversion. It operates at sampling rates of up to 65 million samples per second (MSPS) and is suitable for a wide range of applications, including communications, imaging, and medical ultrasound.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 12 | |
| Sampling Rate | 20/40/65 MSPS | |
| Input Type | Differential, Single Ended | |
| Architecture | Pipelined | |
| Reference Type | External, Internal | |
| Analog Supply Voltage | 2.7V ~ 3.6V | V |
| Digital Supply Voltage | 2.25V ~ 3.6V | V |
| Operating Temperature | -40°C ~ 85°C | °C |
| Package | 28-TSSOP | |
| Power Consumption (at 65 MSPS) | 300 mW | mW |
Key Features
- High-Speed Operation: The AD9235BRU-65 operates at sampling rates of up to 65 MSPS, making it suitable for high-frequency applications.
- Pipelined Architecture: The device uses a multistage differential pipelined architecture with output error correction logic to ensure 12-bit accuracy.
- Flexible Input Configuration: It supports both differential and single-ended input configurations, allowing for a variety of user-selectable input ranges and offsets.
- Duty Cycle Stabilizer (DCS): The DCS compensates for wide variations in the clock duty cycle, maintaining excellent overall ADC performance.
- Low Power Consumption: The device consumes a low 300 mW of power at 65 MSPS, contributing to power and cost savings.
- Out-of-Range (OTR) Signal: An OTR signal indicates when the input signal is beyond the selected input range, helping in overflow detection.
Applications
The AD9235BRU-65 is suitable for various demanding applications, including:
- Communications: High-speed data conversion is crucial in communication systems, and this ADC meets those requirements.
- Imaging: The high precision and speed of the AD9235BRU-65 make it ideal for imaging applications such as medical imaging and industrial inspection.
- Medical Ultrasound: The device's high sampling rate and accuracy are beneficial for medical ultrasound systems.
Q & A
- What is the maximum sampling rate of the AD9235BRU-65?
The AD9235BRU-65 can operate at sampling rates of up to 65 MSPS. - What is the resolution of the AD9235BRU-65?
The AD9235BRU-65 has a 12-bit resolution. - What types of input configurations does the AD9235BRU-65 support?
The device supports both differential and single-ended input configurations. - What is the operating temperature range of the AD9235BRU-65?
The operating temperature range is -40°C to 85°C. - What is the power consumption of the AD9235BRU-65 at 65 MSPS?
The power consumption is 300 mW at 65 MSPS. - Does the AD9235BRU-65 have any features to compensate for clock duty cycle variations?
Yes, it includes a duty cycle stabilizer (DCS) to maintain ADC performance over a wide range of clock pulse widths. - What package options are available for the AD9235BRU-65?
The device is available in a 28-lead TSSOP package. - Can the AD9235BRU-65 be used in multiplexed systems?
Yes, it is suitable for multiplexed systems that switch full-scale voltage levels in successive channels. - How does the AD9235BRU-65 indicate an overflow condition?
An out-of-range (OTR) signal indicates when the input signal is beyond the selected input range. - What are some typical applications of the AD9235BRU-65?
Typical applications include communications, imaging, and medical ultrasound.
