Overview
The AD9251BCPZRL7-80, produced by Analog Devices Inc., is a high-performance, dual-channel, 14-bit analog-to-digital converter (ADC) designed for a variety of high-speed data acquisition applications. It operates from a single 1.8 V analog power supply and features a separate digital output driver supply to accommodate 1.8 V to 3.3 V logic families. The ADC utilizes a multistage differential pipeline architecture with output error correction logic, ensuring 14-bit accuracy at data rates up to 80 MSPS and guaranteeing no missing codes over the full operating temperature range.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sample Rate | 20 MSPS, 40 MSPS, 65 MSPS, 80 MSPS |
| Analog Supply Voltage | 1.8 V |
| Digital Output Driver Supply Voltage | 1.8 V to 3.3 V |
| Input Frequency Range | Up to 200 MHz |
| Temperature Range | −40°C to +85°C |
| Package | 64-Lead RoHS Compliant LFCSP (9mm x 9mm x 0.75mm) |
| Output Format | Offset binary, gray code, or twos complement |
| Clock Input | Differential clock input with optional duty cycle stabilizer (DCS) |
Key Features
- High-performance sample-and-hold circuit designed for low cost, low power, and ease of use.
- Programmable clock and data alignment, and programmable digital test pattern generation including built-in deterministic and pseudorandom patterns.
- Standard serial port interface (SPI) for setup and control, including data output formatting, internal clock divider, power-down, DCO/DATA timing and offset adjustments, and voltage reference modes.
- Support for both 1.8 V and 3.3 V CMOS levels, with output data multiplexed onto a single output bus.
- Pin compatible with other ADCs from Analog Devices, such as the AD9268, AD9258, AD9231, and AD9204, enabling easy migration between different converter models.
Applications
The AD9251BCPZRL7-80 is suitable for a wide range of high-speed data acquisition applications, including:
- Medical imaging and diagnostics
- Radar and surveillance systems
- Test and measurement equipment
- Wireless communication systems
- Industrial control and automation
Q & A
- What is the resolution of the AD9251BCPZRL7-80 ADC?
The AD9251BCPZRL7-80 has a resolution of 14 bits. - What are the available sample rates for the AD9251BCPZRL7-80?
The available sample rates are 20 MSPS, 40 MSPS, 65 MSPS, and 80 MSPS. - What is the analog supply voltage for the AD9251BCPZRL7-80?
The analog supply voltage is 1.8 V. - What is the temperature range for the AD9251BCPZRL7-80?
The temperature range is −40°C to +85°C. - What types of output formats are supported by the AD9251BCPZRL7-80?
The ADC supports offset binary, gray code, and twos complement output formats. - Does the AD9251BCPZRL7-80 support programmable test patterns?
Yes, it supports programmable digital test pattern generation, including built-in deterministic and pseudorandom patterns, as well as custom user-defined test patterns via the SPI interface. - What is the purpose of the duty cycle stabilizer (DCS) in the AD9251BCPZRL7-80?
The DCS compensates for wide variations in the clock duty cycle while maintaining excellent overall ADC performance. - Is the AD9251BCPZRL7-80 compatible with other ADC models from Analog Devices?
Yes, it is pin compatible with other ADCs such as the AD9268, AD9258, AD9231, and AD9204. - What software tools are available for evaluating the AD9251BCPZRL7-80?
The AD9251-80EBZ evaluation board is supported by VisualAnalog and SPI controller software interfaces. - What are the package dimensions of the AD9251BCPZRL7-80?
The package is a 64-Lead RoHS Compliant LFCSP with dimensions of 9mm x 9mm x 0.75mm.
