Overview
The AD7872KNZ is a 14-bit, successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD7871/AD7872 series and is known for its high accuracy and dynamic performance. It operates from ±5 V power supplies and can handle bipolar input signals up to ±3 V. The AD7872KNZ is fabricated using Analog Devices' LC2MOS mixed technology process and is available in a 16-pin PDIP package.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Input Range | ±3 V |
| Power Supply | ±5 V ± 5% |
| Conversion Rate | Up to 83 kHz |
| Throughput Time | 12 μs maximum |
| Track-and-Hold Acquisition Time | |
| Internal Reference | 3 V ± 0 mV, temperature compensated |
| Package Type | 16-pin PDIP |
| Operating Temperature | 0°C to +70°C |
Key Features
- High accuracy and dynamic performance, including specifications for distortion and signal-to-noise ratio.
- On-chip temperature compensated buried Zener reference.
- Track-and-hold amplifier with a 0.1 dB cutoff frequency at 500 kHz.
- No external components required apart from power supply decoupling capacitors.
- Internal clock oscillator and control logic.
- Capable of converting full power signals up to 41.5 kHz.
Applications
The AD7872KNZ is suitable for a variety of applications requiring high precision and dynamic performance, such as:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- High-speed data acquisition systems.
- Audio and video processing.
Q & A
- What is the resolution of the AD7872KNZ?
The AD7872KNZ has a resolution of 14 bits. - What is the input range of the AD7872KNZ?
The input range is ±3 V. - What are the power supply requirements for the AD7872KNZ?
The device operates from ±5 V power supplies. - What is the maximum conversion rate of the AD7872KNZ?
The maximum conversion rate is up to 83 kHz. - How long does the track-and-hold amplifier take to acquire an input signal?
The track-and-hold amplifier acquires an input signal in less than 2 μs. - Does the AD7872KNZ require any external components?
No external components are required apart from power supply decoupling capacitors. - What is the operating temperature range of the AD7872KNZ?
The operating temperature range is 0°C to +70°C. - What type of package is the AD7872KNZ available in?
The AD7872KNZ is available in a 16-pin PDIP package. - What is the internal reference voltage of the AD7872KNZ?
The internal reference voltage is 3 V ± 0 mV, temperature compensated. - Can the AD7872KNZ handle full power signals?
Yes, it can convert full power signals up to 41.5 kHz.
