Overview
The AD977BR, produced by Analog Devices Inc., is a high-speed, low-power 16-bit analog-to-digital converter (ADC). This device operates from a single 5 V supply and is designed for applications requiring high accuracy and fast throughput rates. The AD977BR features a successive approximation switched capacitor architecture and is factory calibrated to minimize linearity errors. It supports both bipolar and unipolar input ranges, making it versatile for various industrial and automation applications.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | AD977BR |
| Manufacturer | Analog Devices Inc. |
| Package / Case | 20-SOIC (0.295, 7.50mm Width) |
| Number of Pins | 20 |
| Number of Bits | 16 |
| Sampling Rate | 100 kSPS |
| Polarity | Bipolar, Unipolar |
| Interface | SPI, Serial |
| Integral Nonlinearity (INL) | ±2 LSB |
| Differential Nonlinearity | -1 LSB |
| Min Supply Voltage | 4.75 V |
| Supply Voltage | 5 V |
| Operating Temperature | -40°C ~ 85°C |
| Power Dissipation | 100 mW Max |
Key Features
- High-Speed Throughput: The AD977BR offers a throughput rate of 100 kSPS, making it suitable for high-speed data acquisition applications.
- Single-Supply Operation: Operates from a single 5 V supply, reducing power consumption and simplifying system design.
- High Resolution: 16-bit resolution provides high accuracy and precision in analog-to-digital conversion.
- Internal Reference: Includes an internal 2.5 V reference, which can be used externally if needed.
- Serial Interface: High-speed serial interface (SPI) for efficient data transfer.
- Input Ranges: Supports both bipolar (±10 V, ±5 V, ±3.3 V) and unipolar (0 V–10 V, 0 V–5 V, 0 V–4 V) input ranges.
- Low Power Consumption: Maximum power dissipation of 100 mW and a power-down mode of 50 µW.
- Compact Package: Available in a 20-lead Skinny SOIC package, suitable for automated assembly processes.
Applications
- Automatic Test Equipment: Ideal for high-speed data acquisition in test and measurement systems.
- Process Control and Industrial Automation: Used in various industrial applications requiring precise and fast analog-to-digital conversion.
- Medical Devices: Suitable for medical equipment that requires high accuracy and reliability in data acquisition.
- Aerospace and Defense: Applied in systems that demand high performance and reliability under various operating conditions.
Q & A
- What is the sampling rate of the AD977BR?
The AD977BR has a sampling rate of 100 kSPS.
- What is the resolution of the AD977BR?
The AD977BR has a 16-bit resolution.
- What are the supported input ranges for the AD977BR?
The AD977BR supports both bipolar (±10 V, ±5 V, ±3.3 V) and unipolar (0 V–10 V, 0 V–5 V, 0 V–4 V) input ranges.
- What is the supply voltage for the AD977BR?
The AD977BR operates from a single 5 V supply.
- What is the maximum power dissipation of the AD977BR?
The maximum power dissipation is 100 mW.
- Does the AD977BR have an internal reference?
Yes, the AD977BR includes an internal 2.5 V reference.
- What type of interface does the AD977BR use?
The AD977BR uses a high-speed serial interface (SPI).
- What is the operating temperature range for the AD977BR?
The operating temperature range is -40°C to 85°C.
- Is the AD977BR suitable for automated assembly processes?
Yes, it is available in a 20-lead Skinny SOIC package suitable for automated assembly processes.
- What are some typical applications of the AD977BR?
Typical applications include automatic test equipment, process control, industrial automation, medical devices, and aerospace and defense systems.
