Overview
The AD9268BCPZRL7-125 is a dual, 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed to support high-performance communications applications, offering a balance of low power consumption, small size, and versatility. The AD9268 features a multistage, differential pipelined architecture with integrated output error correction logic and wide bandwidth, differential sample-and-hold analog input amplifiers. It operates from a single 1.8 V analog supply and a separate digital output driver supply, which can be set to either 1.8 V CMOS or LVDS outputs.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Sample Rate | 80 MSPS / 105 MSPS / 125 MSPS |
| Signal-to-Noise Ratio (SNR) | 78.2 dBFS @ 70 MHz and 125 MSPS |
| Spurious-Free Dynamic Range (SFDR) | 88 dBc @ 70 MHz and 125 MSPS |
| Power Consumption | 750 mW @ 125 MSPS |
| Analog Supply Voltage | 1.8 V |
| Digital Output Supply Voltage | 1.8 V CMOS or LVDS |
| Input Clock Divider | Integer 1-to-8 |
| Input Frequency Range | Up to 300 MHz |
| Input Impedance | 200 Ω |
| Package Type | 64-Lead LFCSP (9mm x 9mm w/ EP) |
| Operating Temperature Range | −40°C to +85°C |
Key Features
- On-chip dither option for improved SFDR performance with low power analog input.
- Proprietary differential input that maintains excellent SNR performance for input frequencies up to 300 MHz.
- Operation from a single 1.8 V supply and a separate digital output driver supply accommodating 1.8 V CMOS or LVDS outputs.
- Standard serial port interface (SPI) for setup and control, supporting features such as data formatting, clock DCS, power-down, test modes, and voltage reference mode.
- Pin compatibility with the AD9258, AD9251, AD9231, and AD9204 family of products for easy migration.
- Flexible power-down options for significant power savings.
- Integrated voltage reference and duty cycle stabilizer to maintain excellent performance.
Applications
The AD9268 is primarily designed for high-performance communications applications. It is suitable for use in various systems requiring high-speed data conversion, such as:
- Wireless infrastructure and base stations.
- Medical imaging and diagnostic equipment.
- Test and measurement instruments.
- Radar and electronic warfare systems.
- High-speed data acquisition systems.
Q & A
- What is the resolution of the AD9268 ADC?
The AD9268 is a 16-bit analog-to-digital converter.
- What are the available sample rates for the AD9268?
The AD9268 supports sample rates of 80 MSPS, 105 MSPS, and 125 MSPS.
- What is the power consumption of the AD9268 at 125 MSPS?
The power consumption is 750 mW at 125 MSPS.
- What types of digital output interfaces are supported by the AD9268?
The AD9268 supports 1.8 V CMOS or LVDS digital output interfaces.
- Does the AD9268 have an on-chip dither option?
Yes, the AD9268 has an optional on-chip dither for improved SFDR performance.
- What is the operating temperature range of the AD9268?
The operating temperature range is −40°C to +85°C.
- Is the AD9268 pin compatible with other ADC models from Analog Devices?
Yes, it is pin compatible with the AD9258, AD9251, AD9231, and AD9204 family of products.
- What type of package does the AD9268 come in?
The AD9268 is available in a 64-Lead LFCSP package.
- How is the AD9268 programmed for setup and control?
The AD9268 is programmed using a 3-wire SPI-compatible serial interface.
- What software tools are available for evaluating the AD9268?
The AD9268 can be evaluated using the VisualAnalog software package and the SPI controller software package.
