Overview
The AD974ARZ, produced by Analog Devices Inc., is a comprehensive data acquisition system integrated into a single chip. It combines a four-channel multiplexer, a 16-bit successive-approximation switched-capacitor analog-to-digital converter (ADC), and a +2.5 V internal reference. This device operates from a single +5 V supply and features a power-down mode to minimize power consumption. The AD974ARZ is designed for high-speed data acquisition with a throughput rate of 200 kSPS and supports various analog input ranges including ±10 V, 0 V to +4 V, and 0 V to +5 V.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits |
| Analog Input Voltage Range | ±10 V, 0 V to +4 V, 0 V to +5 V | |||
| Sampling Capacitance | 40 | 40 | 40 | pF |
| Throughput Rate | 200 | 200 | 200 | kHz |
| Integral Linearity Error | ±3 | ±2.0 | LSB | |
| Differential Linearity Error | -2 | +3 | -1 +1.75 | LSB |
| Full-Scale Error (Internal Reference) | ±0.5 | ±0.25 | % | |
| Power Supply | +5 V | V | ||
| Power Dissipation (Max) | 120 | mW | ||
| Package Types | 28-Lead DIP, SOIC, SSOP |
Key Features
- Four-channel input multiplexer and 16-bit successive-approximation switched-capacitor ADC.
- Internal +2.5 V reference and high-speed serial interface.
- Single +5 V supply operation with a power-down mode.
- Supports various analog input ranges: ±10 V, 0 V to +4 V, and 0 V to +5 V.
- Comprehensive testing for AC parameters (SNR, THD) and DC parameters (offset, gain, linearity).
- Available in 28-lead DIP, SOIC, and SSOP packages.
- Low power dissipation of 120 mW maximum.
Applications
The AD974ARZ is suitable for a variety of applications requiring high-speed data acquisition and precision analog-to-digital conversion. These include:
- Industrial control systems.
- Medical devices requiring precise data acquisition.
- Aerospace and defense systems.
- Automotive systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD974ARZ ADC?
The AD974ARZ has a resolution of 16 bits. - What are the supported analog input voltage ranges for the AD974ARZ?
The AD974ARZ supports analog input voltage ranges of ±10 V, 0 V to +4 V, and 0 V to +5 V. - What is the throughput rate of the AD974ARZ?
The throughput rate of the AD974ARZ is 200 kSPS. - Does the AD974ARZ have a power-down mode?
Yes, the AD974ARZ has a power-down mode to minimize power consumption. - What types of packages are available for the AD974ARZ?
The AD974ARZ is available in 28-lead DIP, SOIC, and SSOP packages. - How is the AD974ARZ powered?
The AD974ARZ operates from a single +5 V supply. - What is the maximum power dissipation of the AD974ARZ?
The maximum power dissipation of the AD974ARZ is 120 mW. - Does the AD974ARZ have an internal reference voltage?
Yes, the AD974ARZ has an internal +2.5 V reference voltage. - How is data transferred from the AD974ARZ?
Data is transferred through a high-speed serial interface. - Is the AD974ARZ comprehensively tested for various parameters?
Yes, the AD974ARZ is comprehensively tested for AC parameters (SNR, THD) and DC parameters (offset, gain, linearity).
