Overview
The AD977CR, produced by Analog Devices Inc., is a high-speed, low-power 16-bit analog-to-digital converter (ADC). This component operates from a single 5 V supply and is designed for applications requiring fast and precise data conversion. The AD977CR features a throughput rate of 100 kSPS, making it suitable for various industrial and automation environments. It incorporates a successive approximation, switched capacitor architecture and includes an internal 2.5 V reference and a high-speed serial interface.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 16 | |
| Sampling Rate | 100 kSPS | |
| Input Type | Single Ended | |
| Data Interface | SPI | |
| Reference Type | External, Internal | |
| Supply Voltage - Analog | 5 V | |
| Supply Voltage - Digital | 5 V | |
| Operating Temperature | -40°C to 85°C | |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | |
| Power Dissipation | 100 mW Max | |
| Power-Down Mode | 50 µW |
Key Features
- Fast 16-bit ADC with a throughput rate of 100 kSPS
- Single 5 V supply operation
- Low power dissipation of 100 mW maximum and 50 µW in power-down mode
- Input ranges: unipolar (0 V–10 V, 0 V–5 V, 0 V–4 V) and bipolar (±10 V, ±5 V, ±3.3 V)
- Choice of external or internal 2.5 V reference
- High-speed serial interface
- On-chip clock
- 20-Lead Skinny SOIC package
- Factory calibrated to minimize linearity errors
Applications
- Automatic test equipment
- Process control and industrial automation
- Medical devices requiring high-precision analog-to-digital conversion
- High-resolution data acquisition and processing systems
Q & A
- What is the sampling rate of the AD977CR?
The AD977CR has a sampling rate of 100 kSPS.
- What is the power supply requirement for the AD977CR?
The AD977CR operates from a single 5 V supply.
- What are the input ranges supported by the AD977CR?
The AD977CR supports unipolar input ranges of 0 V–10 V, 0 V–5 V, and 0 V–4 V, and bipolar input ranges of ±10 V, ±5 V, and ±3.3 V.
- Does the AD977CR have an internal reference?
Yes, the AD977CR has the option for both external and internal 2.5 V reference.
- What is the package type of the AD977CR?
The AD977CR is available in a 20-Lead Skinny SOIC package.
- What is the power dissipation of the AD977CR in normal operation?
The power dissipation is 100 mW maximum.
- What is the power consumption in power-down mode?
The power consumption in power-down mode is 50 µW.
- What type of data interface does the AD977CR use?
The AD977CR uses a high-speed serial interface (SPI).
- Is the AD977CR suitable for industrial automation?
Yes, the AD977CR is suitable for industrial automation and other applications requiring fast and precise analog-to-digital conversion.
- Is the AD977CR factory calibrated?
Yes, the AD977CR is factory calibrated to minimize linearity errors.
