Overview
The AD7872KRZ-REEL, produced by Analog Devices Inc., is a complete 14-bit analog-to-digital converter (ADC) designed for high-performance applications. This device is part of the AD7871/AD7872 series, which features a track-and-hold amplifier, a successive approximation ADC, a 3 V buried Zener reference, and versatile interface logic. The AD7872KRZ-REEL operates from ±5 V power supplies and can accept bipolar input signals of ±3 V, making it suitable for a wide range of analog input signals.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 14 |
| Sampling Rate | Up to 83 ksps |
| Polarity | Bipolar |
| Input Voltage Range | ±3 V |
| Supply Voltage | ±5 V ± 5% |
| Package Type | 16-Lead SOIC Wide |
| Integral Nonlinearity (INL) | 1 LSB |
| Signal to Noise Ratio (SNR) | Specified for dynamic performance parameters including distortion and SNR |
| Track-and-Hold Amplifier Acquisition Time | |
| Throughput Time | Maximum 12 μs for a 2 MHz input clock |
| RoHS Status | RoHS Compliant |
Key Features
- Self-contained, laser-trimmed internal clock, eliminating the need for external clock timing components.
- On-chip 3 V buried Zener reference, which is temperature compensated and factory trimmed to ±0 mV.
- Track-and-hold amplifier with a high input bandwidth, allowing accurate conversion of input signals up to 41.5 kHz.
- Support for serial data output, facilitating easy interface with modern microprocessors and digital signal processors.
- No external components required apart from power supply decoupling capacitors.
- Available in various packages, including 16-pin PDIP, CERDIP, and SOIC.
Applications
The AD7872KRZ-REEL is suitable for a variety of high-performance applications, including:
- Data acquisition systems requiring high accuracy and speed.
- Industrial control systems that need precise analog-to-digital conversion.
- Medical devices that require reliable and accurate signal processing.
- Aerospace and defense applications where robust and high-precision ADCs are necessary.
- Automotive systems that demand reliable and efficient analog-to-digital conversion.
Q & A
- What is the resolution of the AD7872KRZ-REEL ADC?
The AD7872KRZ-REEL has a resolution of 14 bits.
- What is the maximum sampling rate of the AD7872KRZ-REEL?
The maximum sampling rate is up to 83 ksps).
- What type of input signals can the AD7872KRZ-REEL handle?
The AD7872KRZ-REEL can handle bipolar input signals of ±3 V).
- What is the supply voltage range for the AD7872KRZ-REEL?
The supply voltage range is ±5 V ± 5%).
- Does the AD7872KRZ-REEL require any external clock components?
No, it has a self-contained, laser-trimmed internal clock).
- What is the track-and-hold amplifier acquisition time?
The track-and-hold amplifier acquisition time is less than 2 μs).
- What is the throughput time for the AD7872KRZ-REEL?
The maximum throughput time is 12 μs for a 2 MHz input clock).
- Is the AD7872KRZ-REEL RoHS compliant?
- What types of packages are available for the AD7872KRZ-REEL?
The AD7872KRZ-REEL is available in 16-pin PDIP, CERDIP, and SOIC packages).
- How does the on-chip reference of the AD7872KRZ-REEL contribute to its performance?
The on-chip 3 V buried Zener reference is temperature compensated and factory trimmed to ±0 mV, providing stable and accurate reference voltage for the ADC).
