Overview
The AD977AR is a high-performance, 16-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component operates from a single 5 V supply and is designed for high-speed applications. The AD977AR features a throughput rate of 200 kSPS, making it suitable for various industrial and automotive uses. It incorporates a successive approximation, switched capacitor architecture and is factory calibrated to minimize linearity errors.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 16 | |
| Sampling Rate | 200 kSPS | |
| Number of Analog In Channels | 1 | |
| Input Type | Single Ended | |
| Data Interface | SPI, Serial | |
| Reference Type | External, Internal | |
| Voltage - Supply, Analog | 5 V | |
| Voltage - Supply, Digital | 5 V | |
| Operating Temperature | -40°C to 85°C | |
| Package / Case | 20-SOIC (0.295, 7.50mm Width) | |
| Integral Nonlinearity (INL) | ±3 LSB | |
| Differential Nonlinearity (DNL) | ±3 LSB | |
| Power Dissipation | 100 mW Max | |
| Power-Down Mode | 50 µW |
Key Features
- Fast Throughput Rate: The AD977AR offers a high throughput rate of 200 kSPS, making it ideal for high-speed applications.
- Single-Supply Operation: Operates from a single 5 V supply, simplifying power supply design.
- High Speed Serial Interface: Features a high-speed serial interface for efficient data transfer.
- Internal Reference: Includes an internal 2.5 V reference, which can also be configured to use an external reference.
- Low Power Consumption: Maximum power dissipation of 100 mW and a power-down mode of 50 µW.
- Input Ranges: Supports both unipolar and bipolar input ranges, including 0 V to 10 V, 0 V to 5 V, 0 V to 4 V, ±10 V, ±5 V, and ±3.3 V.
- Factory Calibration: Factory calibrated to minimize all linearity errors.
Applications
- Automatic Test Equipment: Suitable for use in automatic test equipment due to its high accuracy and speed.
- Process Control and Industrial Automation: Ideal for industrial automation and process control applications requiring precise and fast analog-to-digital conversion.
- Medical Devices: Can be used in medical devices that require high-resolution and fast data acquisition.
- Aerospace and Defense: Applicable in aerospace and defense systems where high reliability and performance are critical.
Q & A
- What is the sampling rate of the AD977AR?
The AD977AR has a sampling rate of 200 kSPS.
- What is the number of bits in the AD977AR?
The AD977AR is a 16-bit analog-to-digital converter.
- What is the supply voltage for the AD977AR?
The AD977AR operates from a single 5 V supply.
- What are the input ranges supported by the AD977AR?
The AD977AR supports both unipolar and bipolar input ranges, including 0 V to 10 V, 0 V to 5 V, 0 V to 4 V, ±10 V, ±5 V, and ±3.3 V.
- Does the AD977AR have an internal reference?
Yes, the AD977AR includes an internal 2.5 V reference, but it can also be configured to use an external reference.
- What is the power dissipation of the AD977AR?
The maximum power dissipation of the AD977AR is 100 mW, and it has a power-down mode of 50 µW.
- What is the package type of the AD977AR?
The AD977AR is available in a 20-SOIC (0.295, 7.50mm Width) package.
- What are some common applications of the AD977AR?
The AD977AR is commonly used in automatic test equipment, process control, industrial automation, medical devices, and aerospace and defense systems.
- How is the AD977AR calibrated?
The AD977AR is factory calibrated to minimize all linearity errors.
- What is the operating temperature range of the AD977AR?
The operating temperature range of the AD977AR is -40°C to 85°C.
