Overview
The AD7871JPZ 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, which operates from ±5 V power supplies and accepts bipolar input signals up to ±3 V. The AD7871JPZ is fabricated using Analog Devices' LC2MOS mixed technology process and is available in a 28-pin PLCC package. It is designed for high accuracy and dynamic performance, making it suitable for a variety of applications requiring precise analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Input Range | ±3 V |
| Power Supply | ±5 V ± 5% |
| Conversion Rate | Up to 83 kHz |
| Package Type | 28-pin PLCC |
| Operating Temperature | 0°C to +70°C |
| Reference Voltage | 3 V ± 0 mV (internal) |
| Track-and-Hold Acquisition Time | < 2 μs |
| Throughput Time | 12 μs maximum (with 2 MHz clock) |
Key Features
- High accuracy and dynamic performance, including specifications for distortion and signal-to-noise ratio.
- On-chip temperature-compensated 3 V buried Zener reference.
- Internal track-and-hold amplifier with a 0.1 dB cutoff frequency at 500 kHz.
- Support for bipolar and unipolar operation with adjustable offset and full-scale error.
- No external components required apart from power supply decoupling capacitors.
- Reference output capable of providing up to 500 μA to an external load.
Applications
The AD7871JPZ is suitable for various applications that require high-precision analog-to-digital conversion, such as:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- High-performance data acquisition systems.
- Audio and signal processing applications.
Q & A
- What is the resolution of the AD7871JPZ?
The AD7871JPZ has a resolution of 14 bits. - What is the input voltage range of the AD7871JPZ?
The input voltage range is ±3 V. - What type of power supply does the AD7871JPZ require?
The AD7871JPZ operates from ±5 V power supplies. - What is the maximum conversion rate of the AD7871JPZ?
The maximum conversion rate is up to 83 kHz. - What package type is the AD7871JPZ available in?
The AD7871JPZ is available in a 28-pin PLCC package. - What is the operating temperature range of the AD7871JPZ?
The operating temperature range is 0°C to +70°C. - Does the AD7871JPZ have an internal reference voltage?
Yes, it has an on-chip temperature-compensated 3 V buried Zener reference. - 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 throughput time of the AD7871JPZ with a 2 MHz clock?
The throughput time is 12 μs maximum. - Can the AD7871JPZ be used for both bipolar and unipolar operations?
Yes, it supports both bipolar and unipolar operations with adjustable offset and full-scale error.
