Overview
The AD9280ARS is a high-performance, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This monolithic, single-supply ADC features an on-chip sample-and-hold amplifier and voltage reference, making it suitable for a wide range of applications including imaging, communications, and instrumentation. The AD9280ARS operates at a sampling rate of 32 MSPS and is designed to provide low power consumption and high dynamic performance.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 8 |
| Sampling Rate | 32 MSPS |
| Supply Voltage Range | +2.7 V to +5.5 V |
| Power Dissipation | 95 mW (at 3 V supply) |
| Differential Nonlinearity (DNL) | 0.2 LSB |
| Integral Nonlinearity (INL) | 1.5 LSB |
| Package Type | 28-SSOP (0.209, 5.30mm Width) |
| Operating Temperature Range | –40°C to +85°C |
| Output Format | Straight Binary |
Key Features
- Pipelined multistage differential architecture for high sample rates with low power consumption.
- On-chip sample-and-hold amplifier and voltage reference.
- Optional clamp circuit for DC restoration of video signals.
- Three-state outputs and power-down (sleep) mode.
- Out-of-range indicator for overflow conditions.
- Pin-compatible with AD876-8 A/D converters.
- Adjustable on-chip voltage reference with the option for an external reference.
Applications
- Imaging systems: The AD9280ARS is well-suited for various imaging applications due to its high sampling rate and low power consumption.
- Communications systems: It is used in communication systems that require high-speed data conversion with minimal power dissipation.
- Instrumentation: The ADC is applicable in various instrumentation roles where precise and fast analog-to-digital conversion is necessary.
Q & A
- What is the sampling rate of the AD9280ARS?
The AD9280ARS operates at a sampling rate of 32 MSPS.
- What is the supply voltage range for the AD9280ARS?
The supply voltage range is from +2.7 V to +5.5 V.
- What is the power dissipation of the AD9280ARS at 3 V supply?
The power dissipation is 95 mW at a 3 V supply.
- What is the differential nonlinearity (DNL) of the AD9280ARS?
The differential nonlinearity is 0.2 LSB.
- Does the AD9280ARS have a built-in clamp function?
Yes, the AD9280ARS features an optional clamp circuit for DC restoration of video signals.
- What is the output format of the AD9280ARS?
The digital output data is presented in straight binary format.
- Is the AD9280ARS pin-compatible with other A/D converters?
Yes, it is pin-compatible with the AD876-8 A/D converters.
- What is the operating temperature range of the AD9280ARS?
The operating temperature range is from –40°C to +85°C.
- Does the AD9280ARS have a power-down mode?
Yes, it has a power-down (sleep) mode to reduce power consumption when not in use.
- Can the AD9280ARS use an external voltage reference?
Yes, the AD9280ARS allows for an external voltage reference to be used if needed.
