Overview
The AD977ARSZRL is a high-performance, 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD977/AD977A series, known for its high speed and low power consumption. The AD977A variant, which includes the AD977ARSZRL, operates at a throughput rate of 200 kSPS, while the AD977 operates at 100 kSPS. The device is designed for single 5 V supply operation and features a power-down mode to minimize power dissipation. It is widely used in applications requiring high accuracy and speed, such as automatic test equipment and industrial automation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 16 | |
| Sampling Rate | 200 kSPS | |
| Number of Inputs | 1 | |
| Input Type | Single Ended | |
| Data Interface | SPI | |
| Architecture | SAR (Successive Approximation Register) | |
| Reference Type | External, Internal | |
| Voltage - Supply, Analog | 5 V | |
| Voltage - Supply, Digital | 5 V | |
| Operating Temperature | -40°C to +85°C | |
| Package / Case | 28-SSOP (0.209", 5.30mm Width) | |
| Power Dissipation | 100 mW Max | |
| Power-Down Mode | 50 µW |
Key Features
- Fast 16-bit ADC with 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).
- Choice of external or internal 2.5 V reference.
- High-speed serial interface (SPI).
- On-chip clock for simplified system design.
- Factory calibrated to minimize linearity errors.
- Supports various input ranges: unipolar (0 V to 10 V, 0 V to 5 V, 0 V to 4 V) and bipolar (±10 V, ±5 V, ±3.3 V).
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 sampling rate of the AD977ARSZRL? The AD977ARSZRL has a sampling rate of 200 kSPS.
- What is the power supply requirement for the AD977ARSZRL? The AD977ARSZRL operates on a single 5 V supply.
- What types of input ranges does the AD977ARSZRL support? The AD977ARSZRL supports both unipolar (0 V to 10 V, 0 V to 5 V, 0 V to 4 V) and bipolar (±10 V, ±5 V, ±3.3 V) input ranges.
- What is the architecture of the AD977ARSZRL? The AD977ARSZRL uses a Successive Approximation Register (SAR) architecture.
- What is the operating temperature range of the AD977ARSZRL? The operating temperature range is -40°C to +85°C.
- What is the power dissipation of the AD977ARSZRL in normal operation? The power dissipation is 100 mW max.
- Does the AD977ARSZRL have a power-down mode? Yes, the AD977ARSZRL has a power-down mode that reduces power dissipation to 50 µW.
- What type of data interface does the AD977ARSZRL use? The AD977ARSZRL uses a high-speed serial interface (SPI).
- Is the AD977ARSZRL factory calibrated? Yes, the AD977ARSZRL is factory calibrated to minimize linearity errors.
- What package type is the AD977ARSZRL available in? The AD977ARSZRL is available in a 28-SSOP package.
