Overview
The AD9226ARS is a 12-bit, 65 MSPS (mega-samples per second) analog-to-digital converter (ADC) produced by Analog Devices Inc. This monolithic, single-supply ADC features an on-chip, high-performance sample-and-hold amplifier and voltage reference. The AD9226ARS is designed for high-speed data acquisition applications, offering excellent AC performance and low power consumption. Although the AD9226ARS is currently obsolete and no longer manufactured, it remains a significant component in legacy systems and for educational purposes.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 65 MSPS |
| Signal-to-Noise Ratio (SNR) | 69 dB @ fIN = 31 MHz |
| Spurious-Free Dynamic Range (SFDR) | 85 dB @ fIN = 31 MHz |
| Intermodulation Distortion | –75 dBFS @ fIN = 140 MHz |
| Effective Number of Bits (ENOB) | 11.1 @ fIN = 10 MHz |
| Differential Nonlinearity Error | ±0.6 LSB |
| Integral Nonlinearity Error | ±0.6 LSB |
| Power Supply | Single 5 V analog supply, 3 V/5 V digital output driver supply |
| Power Consumption | 475 mW |
| Operating Temperature Range | –40°C to +85°C |
| Package Types | 28-Lead SSOP, 48-Lead LQFP |
Key Features
- High-Performance Sample-and-Hold Amplifier: The AD9226ARS features a patented sample-and-hold amplifier that can be configured for either single-ended or differential inputs, maintaining outstanding AC performance up to input frequencies of 300 MHz.
- Low Power Consumption: The ADC consumes 475 mW, which is a fraction of the power used by other high-speed monolithic solutions.
- Single Supply Operation: The AD9226ARS uses a single 5 V power supply, simplifying system power supply design. It also has a separate digital output driver supply line to accommodate 3 V and 5 V logic families.
- No Missing Codes: Guaranteed no missing codes over the full operating temperature range.
- Out of Range (OTR) Indicator: The OTR output bit indicates when the input signal is beyond the AD9226’s input range.
- Pin Compatibility: The AD9226ARS is pin-compatible with other ADCs in the AD9220 series.
Applications
The AD9226ARS is suitable for various high-speed data acquisition applications, including:
- Medical Imaging: High-resolution imaging systems such as MRI and CT scanners.
- Communications: Baseband and IF (Intermediate Frequency) sampling in wireless communication systems.
- Industrial Automation: High-speed data acquisition in industrial control and monitoring systems.
- Scientific Instruments: High-performance data acquisition in scientific research and testing equipment.
Q & A
- What is the resolution and sampling rate of the AD9226ARS?
The AD9226ARS is a 12-bit ADC with a sampling rate of 65 MSPS. - What is the signal-to-noise ratio (SNR) of the AD9226ARS?
The SNR is 69 dB at an input frequency of 31 MHz. - What is the power consumption of the AD9226ARS?
The power consumption is 475 mW. - What are the package types available for the AD9226ARS?
The AD9226ARS is available in 28-Lead SSOP and 48-Lead LQFP packages. - Is the AD9226ARS still in production?
No, the AD9226ARS is currently obsolete and no longer manufactured. - What is the operating temperature range of the AD9226ARS?
The operating temperature range is –40°C to +85°C. - Does the AD9226ARS support both single-ended and differential inputs?
Yes, the AD9226ARS can be configured for either single-ended or differential inputs. - What is the purpose of the OTR output bit in the AD9226ARS?
The OTR output bit indicates when the input signal is beyond the AD9226’s input range. - Is the AD9226ARS compatible with other ADCs in the AD9220 series?
Yes, the AD9226ARS is pin-compatible with other ADCs in the AD9220 series. - What are some typical applications of the AD9226ARS?
Typical applications include medical imaging, communications, industrial automation, and scientific instruments.
