Overview
The AD9235BRU-40, produced by Analog Devices Inc., is a high-performance 12-bit analog-to-digital converter (ADC) designed for demanding applications. This ADC operates at a sampling rate of 40 million samples per second (MSPS) and features a pipelined architecture with output error correction logic, ensuring 12-bit accuracy over the full operating temperature range of –40°C to +85°C. It is available in a 28-lead Thin Shrink Small Outline Package (TSSOP) and is suitable for applications requiring high-speed and high-precision analog-to-digital conversion.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Number of Bits | 12 | 12 | 12 | |
| Sampling Rate | MSPS | 40 | 40 | 40 |
| Input Type | Differential, Single Ended | |||
| Architecture | Pipelined | |||
| Voltage - Supply, Analog | V | 2.7 | 3.6 | |
| Voltage - Supply, Digital | V | 2.25 | 3.6 | |
| Operating Temperature | °C | -40 | 85 | |
| Package/Case | 28-TSSOP | |||
| Power Consumption | mW | 300 | ||
| High Level Input Voltage | V | 2.0 | 2.0 | |
| Low Level Input Voltage | V | 0.8 | 0.8 | |
| High-Level Output Voltage (DRVDD = 3.3 V) | V | 3.29 | 3.29 |
Key Features
- High-Speed Operation: The AD9235BRU-40 operates at 40 MSPS, making it suitable for high-speed applications.
- Pipelined Architecture: Uses a multistage differential pipelined architecture with output error correction logic to ensure 12-bit accuracy.
- Flexible Input Configuration: Supports both differential and single-ended input configurations, allowing for a variety of user-selectable input ranges and offsets.
- Low Power Consumption: Consumes only 300 mW at 40 MSPS, contributing to power and cost savings.
- Duty Cycle Stabilizer (DCS): Compensates for wide variations in the clock duty cycle, maintaining excellent overall ADC performance.
- Out-of-Range (OTR) Signal: Indicates an overflow condition, which can be used with the most significant bit to determine low or high overflow.
- Separate Digital Output Driver Supply: Accommodates 2.5 V and 3.3 V logic families.
Applications
- Communications: Suitable for high-speed data conversion in communication systems.
- Imaging: Used in imaging applications that require high-resolution and fast sampling rates.
- Medical Ultrasound: Ideal for medical ultrasound systems due to its high precision and speed.
- Industrial Applications: Applicable in various industrial settings requiring high-performance ADCs.
Q & A
- What is the sampling rate of the AD9235BRU-40?
The AD9235BRU-40 operates at a sampling rate of 40 million samples per second (MSPS).
- What is the resolution of the AD9235BRU-40?
The AD9235BRU-40 has a 12-bit resolution.
- What types of input configurations does the AD9235BRU-40 support?
The AD9235BRU-40 supports both differential and single-ended input configurations.
- What is the operating temperature range of the AD9235BRU-40?
The operating temperature range is –40°C to +85°C.
- How much power does the AD9235BRU-40 consume at 40 MSPS?
The AD9235BRU-40 consumes 300 mW at 40 MSPS.
- What is the purpose of the Duty Cycle Stabilizer (DCS) in the AD9235BRU-40?
The DCS compensates for wide variations in the clock duty cycle, maintaining excellent overall ADC performance.
- What is the significance of the Out-of-Range (OTR) signal in the AD9235BRU-40?
The OTR signal indicates an overflow condition and can be used with the most significant bit to determine low or high overflow.
- What logic families are supported by the separate digital output driver supply of the AD9235BRU-40?
The separate digital output driver supply accommodates 2.5 V and 3.3 V logic families.
- In what types of applications is the AD9235BRU-40 commonly used?
The AD9235BRU-40 is commonly used in communications, imaging, medical ultrasound, and various industrial applications.
- What package types are available for the AD9235BRU-40?
The AD9235BRU-40 is available in a 28-lead Thin Shrink Small Outline Package (TSSOP).
