Overview
The AD9280ARSZ is a monolithic, single-supply, 8-bit, 32 MSPS analog-to-digital converter (ADC) produced by Analog Devices Inc. It features an on-chip sample-and-hold amplifier and voltage reference, making it suitable for a wide range of high-speed applications. The AD9280 uses a multistage differential pipeline architecture, ensuring no missing codes over the full operating temperature range of -40°C to +85°C. This ADC is designed to ease the development of both imaging and communications systems, allowing for various input ranges and offsets, and supporting both single-ended and differential input configurations.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 8 bits |
| Sampling Rate | 32 MSPS |
| Supply Voltage Range | +2.7 V to +5.5 V |
| Power Dissipation | 95 mW (at 3 V supply) |
| Power-Down (Sleep) Mode Power | Below 5 mW |
| Differential Nonlinearity | 0.2 LSB |
| Package Type | 28-Lead SSOP |
| Operating Temperature Range | -40°C to +85°C |
| Onboard Sample-and-Hold | 300 MHz |
Key Features
- CMOS 8-bit 32 MSPS sampling ADC with on-chip sample-and-hold amplifier and voltage reference.
- Pin-compatible with AD876-8, allowing for easy migration to lower supply voltages.
- Low power consumption: 95 mW at 3 V supply, and below 5 mW in sleep mode.
- Three-state outputs and power-down (sleep) mode for reduced power consumption.
- Onboard programmable reference, with the option to use an external reference for improved dc accuracy and temperature drift.
- Built-in clamp function for dc restoration of video signals.
- Out-of-range indicator (OTR) to signal overflow conditions.
Applications
The AD9280ARSZ is versatile and can be used in a variety of applications, including:
- Imaging systems: The ADC is well-suited for imaging applications due to its high sampling rate and low power consumption.
- Communications systems: It supports both single-ended and differential input configurations, making it suitable for various communication systems.
- Instrumentation: The ADC’s high accuracy and stability make it ideal for instrumentation applications requiring precise data conversion.
Q & A
- What is the resolution and sampling rate of the AD9280ARSZ?
The AD9280ARSZ has an 8-bit resolution and a sampling rate of 32 MSPS.
- What is the operating supply voltage range of the AD9280ARSZ?
The AD9280ARSZ operates within a supply voltage range of +2.7 V to +5.5 V).
- How much power does the AD9280ARSZ consume?
The AD9280ARSZ consumes 95 mW at a 3 V supply and below 5 mW in sleep mode).
- What is the differential nonlinearity of the AD9280ARSZ?
The differential nonlinearity of the AD9280ARSZ is 0.2 LSB).
- What package type is the AD9280ARSZ available in?
The AD9280ARSZ is available in a 28-Lead SSOP package).
- What is the operating temperature range of the AD9280ARSZ?
The AD9280ARSZ operates over a temperature range of -40°C to +85°C).
- Does the AD9280ARSZ have a built-in clamp function?
Yes, the AD9280ARSZ has a built-in clamp function for dc restoration of video signals).
- What is the purpose of the out-of-range indicator (OTR) in the AD9280ARSZ?
The out-of-range indicator (OTR) signals when the input signal is beyond the ADC’s input range, helping to determine low or high overflow conditions).
- Is the AD9280ARSZ pin-compatible with other ADC models?
Yes, the AD9280ARSZ is pin-compatible with the AD876-8, allowing for easy migration to lower supply voltages).
- Can the AD9280ARSZ be used in both single-ended and differential input configurations?
Yes, the AD9280ARSZ supports both single-ended and differential input configurations).
