Overview
The AD9251BCPZRL7-20, produced by Analog Devices Inc., is a high-performance, monolithic, dual-channel analog-to-digital converter (ADC). This 14-bit ADC operates from a single 1.8 V analog power supply and features a separate digital output driver supply that can accommodate 1.8 V to 3.3 V logic families. It is designed for low power consumption and ease of use, making it suitable for a variety of high-speed data acquisition applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14-bit | |
| Sample Rate | 20 MSPS / 40 MSPS / 65 MSPS / 80 MSPS | |
| Analog Supply Voltage | 1.8 V | V |
| Digital Output Supply Voltage | 1.8 V to 3.3 V | V |
| Signal-to-Noise Ratio (SNR) | 74.3 dBFS at 9.7 MHz input, 71.5 dBFS at 200 MHz input | dBFS |
| Spurious Free Dynamic Range (SFDR) | 93 dBc at 9.7 MHz input, 80 dBc at 200 MHz input | dBc |
| Power Consumption | 33 mW per channel at 20 MSPS, 73 mW per channel at 80 MSPS | mW |
| Input Voltage Range | 2 V p-p differential analog input | V |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package | 64-Lead LFCSP (9mm x 9mm x 0.75mm) |
Key Features
- High performance sample-and-hold circuit with 700 MHz bandwidth
- On-chip voltage reference and sample-and-hold circuit
- Differential input with 2 V p-p differential analog input
- Low power consumption: 33 mW per channel at 20 MSPS, 73 mW per channel at 80 MSPS
- Serial port control options for data output formatting, internal clock divider, power-down, and more
- Optional clock duty cycle stabilizer (DCS) for compensating wide variations in the clock duty cycle
- Integer 1-to-8 input clock divider
- Data output multiplex option and programmable clock and data alignment
- Built-in selectable digital test pattern generation including deterministic and pseudorandom patterns
- Energy-saving power-down modes
- Data output in offset binary, gray code, or twos complement format
Applications
The AD9251 is suitable for various high-speed data acquisition applications, including:
- Medical Imaging
- Industrial Imaging
- Radar and Communications Systems
- Test and Measurement Equipment
- High-Speed Data Acquisition Systems
Q & A
- What is the resolution of the AD9251 ADC?
The AD9251 is a 14-bit analog-to-digital converter.
- What are the available sample rates for the AD9251?
The AD9251 supports sample rates of 20 MSPS, 40 MSPS, 65 MSPS, and 80 MSPS.
- What is the analog supply voltage for the AD9251?
The AD9251 operates from a single 1.8 V analog power supply.
- What are the supported digital output supply voltages for the AD9251?
The AD9251 supports digital output supply voltages from 1.8 V to 3.3 V.
- What is the signal-to-noise ratio (SNR) of the AD9251?
The SNR is 74.3 dBFS at 9.7 MHz input and 71.5 dBFS at 200 MHz input.
- Does the AD9251 have built-in test pattern generation?
Yes, the AD9251 includes built-in selectable digital test pattern generation.
- What is the operating temperature range of the AD9251?
The operating temperature range is -40°C to +85°C.
- What package type is the AD9251 available in?
The AD9251 is available in a 64-Lead LFCSP package.
- Does the AD9251 support multiple data output formats?
Yes, the AD9251 supports data output in offset binary, gray code, or twos complement format.
- Is the AD9251 RoHS compliant?
Yes, the AD9251 is RoHS compliant.
