Overview
The AD9200ARS, produced by Analog Devices Inc., is a monolithic, single-supply, 10-bit, 20 MSPS analog-to-digital converter (ADC). It features an on-chip sample-and-hold amplifier and voltage reference, making it highly versatile for various applications. The AD9200 uses a multistage differential pipeline architecture, ensuring no missing codes over the full operating temperature range. This ADC is designed to facilitate the development of both imaging and communications systems, with the ability to drive inputs either single-ended or differentially. The device operates within a supply range of 2.7 V to 5.5 V, making it suitable for low-power, high-speed portable applications.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 10-bit |
| Sampling Rate | 20 MSPS |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Power Dissipation (3 V Supply) | 80 mW |
| Power Dissipation (Sleep Mode) | < 5 mW |
| Differential Nonlinearity | 0.5 LSB |
| Operating Temperature Range | –40°C to +85°C (Industrial), 0°C to +70°C (Commercial) |
| Package Type | 28-lead SSOP, 48-lead LQFP |
| Input Type | Single-ended or differential |
| On-Board Sample-and-Hold | 300 MHz |
| Out-of-Range Indicator | OTR output bit |
| Built-In Clamp Function | Available in AD9200ARS and AD9200KST |
Key Features
- Low Power Consumption: The AD9200 consumes 80 mW on a 3 V supply and reduces to below 5 mW in sleep mode.
- Compact Packaging: Available in both 28-lead SSOP and 48-lead LQFP packages.
- Pin Compatibility: Pin compatible with the AD876, allowing for easy migration to lower supply voltages.
- High-Speed Sample-and-Hold: The on-board sample-and-hold amplifier can be configured for either single-ended or differential inputs and operates up to 300 MHz.
- Out-of-Range Indicator: The OTR output bit indicates when the input signal exceeds the ADC’s input range.
- Built-In Clamp Function: Allows for dc restoration of video signals in the AD9200ARS and AD9200KST models.
- Programmable Reference: Onboard programmable reference with the option to use an external reference for improved dc accuracy and temperature drift requirements.
Applications
The AD9200ARS is suitable for a variety of applications, including:
- Imaging Systems: The ADC’s design facilitates the development of imaging systems by allowing for various input ranges and offsets, and supporting both single-ended and differential inputs.
- Communications Systems: The high-speed sampling rate and excellent dynamic performance make it ideal for communications applications.
- Portable Applications: The low power consumption and wide supply voltage range make it suitable for high-speed portable applications.
Q & A
- What is the resolution and sampling rate of the AD9200ARS?
The AD9200ARS has a 10-bit resolution and a sampling rate of 20 MSPS.
- What is the supply voltage range for the AD9200ARS?
The AD9200ARS operates within a supply voltage range of 2.7 V to 5.5 V.
- How much power does the AD9200ARS consume?
The AD9200ARS consumes 80 mW on a 3 V supply and reduces to below 5 mW in sleep mode.
- What types of input can the AD9200ARS handle?
The AD9200ARS can handle both single-ended and differential inputs.
- Does the AD9200ARS have a built-in clamp function?
Yes, the AD9200ARS and AD9200KST models have a built-in clamp function for dc restoration of video signals.
- What is the operating temperature range for the AD9200ARS?
The AD9200ARS operates over the industrial temperature range of –40°C to +85°C and the commercial temperature range of 0°C to +70°C.
- Is the AD9200ARS pin compatible with other models?
Yes, the AD9200ARS is pin compatible with the AD876, allowing for easy migration to lower supply voltages.
- What is the significance of the OTR output bit in the AD9200ARS?
The OTR output bit indicates when the input signal exceeds the ADC’s input range.
- Can the AD9200ARS use an external reference voltage?
Yes, the AD9200ARS allows the use of an external reference voltage to suit specific dc accuracy and temperature drift requirements.
- What are the typical applications of the AD9200ARS?
The AD9200ARS is typically used in imaging systems, communications systems, and high-speed portable applications.
