Overview
The AD9204BCPZ-40, produced by Analog Devices Inc., is a high-performance, dual-channel analog-to-digital converter (ADC) designed for a wide range of applications requiring high speed and precision. This 10-bit ADC operates at sample rates of up to 40 MSPS and is powered by a single 1.8 V analog supply, with a separate digital output driver supply that can accommodate 1.8 V to 3.3 V logic families. The device features a patented sample-and-hold circuit that maintains excellent performance for input frequencies up to 200 MHz, making it suitable for low-cost, low-power, and easy-to-use designs.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Resolution | Bits | 10 | - | - |
| Sample Rate | MSPS | 20/40 | - | - |
| Input Clock Rate | MHz | - | 625 | - |
| CLK Period—Divide-by-1 Mode (tCLK) | ns | 50/25 | - | - |
| CLK Pulse Width High (tCH) | ns | 25.0/12.5 | - | - |
| Aperture Delay (tA) | ns | - | 1.0 | - |
| Aperture Uncertainty (Jitter, tJ) | ps rms | - | 0.1 | - |
| Data Propagation Delay (tPD) | ns | - | 3 | - |
| DCO Propagation Delay (tDCO) | ns | - | 3 | - |
| DCO to Data Skew (tSKEW) | ns | - | 0.1 | - |
| Pipeline Delay (Latency) | Cycles | - | 9 | - |
| Wake-Up Time | µs | - | 350 | - |
| Operating Temperature Range | °C | -40 | - | 85 |
| Package Type | - | 64-Lead LFCSP (9mm x 9mm x 0.75mm w/ EP) | - | - |
Key Features
- High-Performance Sample-and-Hold Circuit: Maintains excellent performance for input frequencies up to 200 MHz, designed for low cost, low power, and ease of use.
- Programmable Clock and Data Alignment: Allows for flexible system design and minimizes system cost.
- Digital Test Pattern Generation: Includes built-in deterministic and pseudorandom patterns, as well as custom user-defined test patterns via the SPI interface.
- Differential Clock Input and Duty Cycle Stabilizer (DCS): Compensates for wide variations in the clock duty cycle, ensuring excellent overall ADC performance.
- Flexible Data Output Formatting: Supports offset binary, gray code, or twos complement format, with both 1.8 V and 3.3 V CMOS levels supported.
- Standard Serial Port Interface (SPI): Supports various product features and functions, including data output formatting, internal clock divider, power-down, DCO/DATA timing and offset adjustments, and voltage reference modes.
- RoHS Compliant Packaging: 64-lead LFCSP that is pin compatible with other ADC models from Analog Devices, enabling easy migration between different converter types.
Applications
The AD9204 is suitable for a variety of high-speed data acquisition applications, including:
- Medical Imaging: High-resolution imaging systems that require fast and accurate data conversion.
- Industrial Automation: High-speed data acquisition in industrial control systems.
- Communications: Baseband processing in wireless communication systems.
- Test and Measurement: High-speed data acquisition in test and measurement equipment.
- Aerospace and Defense: High-performance data conversion in military and aerospace applications.
The AD9204-80EBZ evaluation board is available to support the development and testing of the AD9204, providing all necessary support circuitry and compatibility with the HSC-ADC-EVALCZ data capture card and Visual Analog software package.
Q & A
- What is the resolution of the AD9204 ADC?
The AD9204 is a 10-bit analog-to-digital converter.
- What are the available sample rates for the AD9204?
The AD9204 is available in versions that sample at rates of 20 MSPS, 40 MSPS, 65 MSPS, and 80 MSPS.
- What type of clock input does the AD9204 use?
The AD9204 uses a differential clock input.
- Does the AD9204 support different data output formats?
Yes, the AD9204 supports offset binary, gray code, and twos complement data output formats.
- What is the operating temperature range of the AD9204?
The AD9204 operates over the industrial temperature range of −40°C to +85°C.
- What is the package type of the AD9204?
The AD9204 is packaged in a 64-lead RoHS compliant LFCSP.
- Is the AD9204 compatible with other ADC models from Analog Devices?
Yes, the AD9204 is pin compatible with other ADC models such as the AD9268, AD9251, AD9258, and AD9231.
- What is the purpose of the duty cycle stabilizer (DCS) in the AD9204?
The DCS compensates for wide variations in the clock duty cycle, maintaining excellent overall ADC performance.
- How does the AD9204 support digital test pattern generation?
The AD9204 supports built-in deterministic and pseudorandom test patterns, as well as custom user-defined test patterns via the SPI interface.
- What software tools are available for evaluating the AD9204?
The AD9204 can be evaluated using the Visual Analog software package and the SPI controller software package, along with the HSC-ADC-EVALCZ data capture card.
