Overview
The AD977ARS is a 16-bit Analog to Digital Converter (ADC) designed by Analog Devices Inc. for precise data acquisition in systems where high resolution is critical. This component is part of the AD977 series, known for its high-speed, low-power operation. The AD977ARS operates from a single 5V supply voltage and features a successive approximation register (SAR) architecture, making it suitable for a wide range of applications requiring high-resolution data conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD977ARS |
| Number of Bits | 16 |
| Sampling Rate | 100 kSPS |
| Input Type | Single Ended |
| Data Interface | SPI |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 5V |
| Architecture | SAR (Successive Approximation Register) |
| Package/Case | 28-SSOP (0.209", 5.30mm Width) |
| Operating Temperature | -40°C ~ 85°C |
| Reference Type | External, Internal |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Lead Free Status / RoHS Status | Contains lead / RoHS non-compliant |
Key Features
- High-resolution 16-bit ADC for precise data acquisition.
- Single 5V supply operation for both analog and digital circuits.
- Supports both external and internal reference types.
- High-speed serial interface (SPI) for data communication.
- On-chip clock for synchronized operation.
- Low power consumption with a maximum power dissipation of 100 mW and a power-down mode of 50 µW.
- Wide input ranges including unipolar (0 V–10 V, 0 V–5 V, 0 V–4 V) and bipolar (±10 V, ±5 V, ±3.3 V).
- Compact 28-SSOP package suitable for high-performance applications.
- High stability across temperature and power supply variations.
Applications
- Automatic test equipment.
- Process control and industrial automation.
- Medical devices requiring high-resolution data conversion.
- Aerospace and defense systems where precision and reliability are crucial.
- High-performance data acquisition systems in various industries.
Q & A
- What is the resolution of the AD977ARS ADC?
The AD977ARS has a 16-bit resolution.
- What is the sampling rate of the AD977ARS?
The sampling rate of the AD977ARS is up to 100 kSPS.
- What type of data interface does the AD977ARS use?
The AD977ARS uses a high-speed serial interface (SPI).
- What are the supply voltage requirements for the AD977ARS?
The AD977ARS operates with a single 5V supply voltage for both analog and digital circuits.
- What are the operating temperature ranges for the AD977ARS?
The AD977ARS operates efficiently within a temperature range of -40°C to 85°C.
- Does the AD977ARS support external and internal reference types?
Yes, the AD977ARS supports both external and internal reference types.
- What is the package type of the AD977ARS?
The AD977ARS comes in a 28-SSOP package.
- Is the AD977ARS RoHS compliant?
No, the AD977ARS contains lead and is RoHS non-compliant.
- What are some common applications of the AD977ARS?
The AD977ARS is commonly used in automatic test equipment, process control, industrial automation, and other high-performance data acquisition systems.
- What is the power consumption of the AD977ARS in power-down mode?
The power consumption in power-down mode is 50 µW.
