Overview
The AD7872JNZ is a 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. It is part of the AD7871/AD7872 series, known for their high precision and versatility. These ADCs are fabricated using the LC2MOS mixed technology process and are designed to operate from ±5 V power supplies, accepting bipolar input signals of ±3 V. The AD7872JNZ features a self-contained, laser-trimmed internal clock, eliminating the need for external clock timing components. It is available in a 16-pin PDIP package and is suitable for a wide range of applications requiring high accuracy and dynamic performance.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Input Range | ±3 V |
| Power Supply | ±5 V ± 5% |
| Conversion Rate | Up to 41.5 kHz |
| Package Type | 16-Lead PDIP |
| Operating Temperature | 0°C to +70°C |
| Internal Reference | 3 V buried Zener reference |
| Output Format | Serial output only |
| Track-and-Hold Amplifier Acquisition Time | |
| Throughput Time | 12 μs maximum (for a 2 MHz input clock) |
Key Features
- Self-contained, laser-trimmed internal clock, eliminating the need for external clock timing components.
- On-chip temperature-compensated 3 V buried Zener reference.
- Track-and-hold amplifier with high input bandwidth and fast acquisition time.
- Successive approximation ADC with high accuracy and dynamic performance.
- Serial output format for easy interface with microprocessors and digital signal processors.
- No external components required apart from power supply decoupling capacitors.
Applications
The AD7872JNZ is suitable for various applications that require high precision and dynamic performance, such as:
- Data acquisition systems.
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
Q & A
- What is the resolution of the AD7872JNZ ADC?
The AD7872JNZ has a resolution of 14 bits. - What is the input voltage range of the AD7872JNZ?
The input voltage range is ±3 V. - What type of power supply does the AD7872JNZ require?
The AD7872JNZ operates from ±5 V power supplies. - What is the maximum conversion rate of the AD7872JNZ?
The maximum conversion rate is up to 41.5 kHz. - In what package is the AD7872JNZ available?
The AD7872JNZ is available in a 16-Lead PDIP package. - What is the operating temperature range of the AD7872JNZ?
The operating temperature range is 0°C to +70°C. - Does the AD7872JNZ have an internal reference?
Yes, it has a 3 V buried Zener reference. - What is the output format of the AD7872JNZ?
The output format is serial only. - 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. - What is the maximum throughput time for the AD7872JNZ with a 2 MHz input clock?
The maximum throughput time is 12 μs.
