Overview
The AD977ARZ is a high-speed, 16-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is part of the AD977/AD977A series, known for its fast throughput rates and low power consumption. The AD977A variant of this series has a throughput rate of 200 kSPS, while the AD977 has a throughput rate of 100 kSPS. The ADC operates from a single 5 V supply and features a factory-calibrated switched capacitor architecture, ensuring high accuracy and minimal linearity errors.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Throughput Rate | 100 kSPS (AD977), 200 kSPS (AD977A) |
| Supply Voltage | Single 5 V |
| Power Dissipation | 100 mW Max |
| Power-Down Mode | 50 µW |
| Input Ranges | Unipolar: 0 V–10 V, 0 V–5 V, 0 V–4 V; Bipolar: ±10 V, ±5 V, ±3.3 V |
| Reference | Choice of External or Internal 2.5 V Reference |
| Interface | High Speed Serial Interface |
| Package | 20-Lead Skinny SOIC, 28-Lead Skinny SSOP |
| Operating Temperature | -40°C to +85°C |
Key Features
- Fast throughput rates of up to 200 kSPS for the AD977A and 100 kSPS for the AD977.
- Single 5 V supply operation with low power dissipation (100 mW max) and a power-down mode (50 µW).
- Factory-calibrated switched capacitor ADC architecture to minimize linearity errors.
- Support for both unipolar and bipolar input ranges.
- Choice of external or internal 2.5 V reference.
- High speed serial interface for data communication.
- On-chip clock for simplified system design.
- Available in 20-lead Skinny SOIC and 28-lead Skinny SSOP packages.
Applications
- Automatic test equipment.
- Process control and industrial automation.
- High-speed data acquisition systems.
- Medical imaging and diagnostic equipment.
- Aerospace and defense applications requiring high precision and speed.
Q & A
- What is the resolution of the AD977ARZ ADC?
The AD977ARZ has a resolution of 16 bits. - What are the throughput rates of the AD977 and AD977A?
The AD977 has a throughput rate of 100 kSPS, while the AD977A has a throughput rate of 200 kSPS. - What is the supply voltage for the AD977ARZ?
The AD977ARZ operates from a single 5 V supply. - What are the power dissipation and power-down mode specifications?
The power dissipation is 100 mW max, and the power-down mode is 50 µW. - What input ranges are supported by the AD977ARZ?
The AD977ARZ supports unipolar input ranges of 0 V–10 V, 0 V–5 V, and 0 V–4 V, as well as bipolar input ranges of ±10 V, ±5 V, and ±3.3 V. - Does the AD977ARZ have an internal reference?
Yes, the AD977ARZ offers a choice of external or internal 2.5 V reference. - What type of interface does the AD977ARZ use?
The AD977ARZ uses a high speed serial interface. - In what packages is the AD977ARZ available?
The AD977ARZ is available in 20-lead Skinny SOIC and 28-lead Skinny SSOP packages. - What is the operating temperature range of the AD977ARZ?
The operating temperature range is -40°C to +85°C. - What are some common applications of the AD977ARZ?
Common applications include automatic test equipment, process control and industrial automation, high-speed data acquisition systems, medical imaging, and aerospace and defense.
