Overview
The AD974BRZ, produced by Analog Devices Inc., is a 4-channel, 16-bit analog-to-digital converter (ADC) designed for high-performance data acquisition systems. This device operates from a single +5 V supply and features a four-channel input multiplexer, a successive-approximation switched-capacitor ADC, and an internal 2.5 V reference. The AD974BRZ is optimized for low power consumption, with a maximum power dissipation of 120 mW and a power-down mode that reduces power to 50 μW. It is comprehensively tested for both AC and DC parameters, ensuring high accuracy and reliability.
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 | V | ||
| Throughput Rate | 200 | 200 | 200 | kHz |
| Integral Linearity Error | ±3 | ±2.0 | LSB | |
| Differential Linearity Error | -2 | -1 | +3 | LSB |
| Full-Scale Error (Internal Reference) | ±0.5% | ±0.25% | % | |
| Power Dissipation | 120 | mW | ||
| Power-Down Mode | 50 | μW | ||
| Input Bandwidth | 2.7 | MHz |
Key Features
- Four-channel input multiplexer and 16-bit successive-approximation switched-capacitor ADC.
- Single +5 V supply operation with a power-down mode.
- Internal 2.5 V reference and option for external reference.
- High-speed serial interface for efficient data transfer.
- Comprehensive testing for AC and DC parameters including SNR, THD, offset, gain, and linearity.
- Available in 28-lead DIP, SOIC, and SSOP packages.
Applications
- Data acquisition systems in industrial, medical, and automotive applications.
- High-speed data logging and monitoring systems.
- Embedded systems requiring low power and high accuracy ADCs.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD974BRZ ADC?
The AD974BRZ has a resolution of 16 bits.
- What are the available analog input voltage ranges for the AD974BRZ?
The AD974BRZ 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 AD974BRZ?
The throughput rate of the AD974BRZ is 200 kHz.
- Does the AD974BRZ have a power-down mode?
- What types of packages are available for the AD974BRZ?
The AD974BRZ is available in 28-lead DIP, SOIC, and SSOP packages.
- What is the input bandwidth of the AD974BRZ?
The input bandwidth of the AD974BRZ is 2.7 MHz.
- Can the AD974BRZ use an external reference voltage?
- What is the maximum power dissipation of the AD974BRZ?
The maximum power dissipation of the AD974BRZ is 120 mW.
- Is the AD974BRZ suitable for low power applications?
- What are the key DC accuracy specifications of the AD974BRZ?
The AD974BRZ has specifications such as integral linearity error of ±3 LSB, differential linearity error of -2 to +3 LSB, and full-scale error of ±0.5% with the internal reference.
