Overview
The AD420ARZ-32-REEL, produced by Analog Devices Inc., is a comprehensive digital to current loop output converter. It is designed to meet the specific needs of the industrial control market. This device is capable of generating 4 mA to 20 mA or 0 mA to 20 mA signals at the controller end of the current loop, making it highly versatile for various industrial applications. The AD420 features a 16-bit resolution, ensuring high precision and monotonicity in its output signals.
Key Specifications
| Parameter | Min | Typ | Max | Units | Comments |
|---|---|---|---|---|---|
| Power Supply Range | 12 | 32 | V | ||
| Quiescent Current | 4.2 | 5.5 | mA | ||
| Output Current Range | 0 | 20 | mA | 0 mA to 20 mA, 4 mA to 20 mA, or 0 mA to 24 mA | |
| Resolution | 16-bit | ||||
| Integral Nonlinearity | ±0.012% | % | |||
| Offset Error | ±0.05% | % | Trimable | ||
| Total Output Error | ±0.15% | % | Trimable | ||
| Temperature Range | -40 | +85 | °C | ||
| Package Type | SOIC-24-300mil |
Key Features
- Flexible serial digital interface with 3.3 MBPS data rate in 3-wire mode and 150 kBPS in asynchronous mode.
- On-chip loop fault detection and asynchronous CLEAR function.
- On-chip 5 V reference with a maximum temperature coefficient of 25 ppm/°C.
- Output loop compliance from 0 V to VCC - 2.75 V.
- Support for multiple current output ranges: 0 mA to 20 mA, 4 mA to 20 mA, and 0 mA to 24 mA.
- High precision with 16-bit resolution and monotonicity.
- Low offset and total output error, both trimable.
- Available in SOIC-24-300mil and PDIP packages.
Applications
The AD420ARZ-32-REEL is primarily used in industrial control systems where precise current loop signals are required. Some common applications include:
- Process control systems.
- Industrial automation.
- Control systems for HVAC, chemical processing, and oil & gas industries.
- Any application requiring accurate and reliable current loop signals.
Q & A
- What is the primary function of the AD420ARZ-32-REEL?
The AD420ARZ-32-REEL is a digital to current loop output converter, designed to generate precise current signals in the range of 0 mA to 20 mA, 4 mA to 20 mA, or 0 mA to 24 mA.
- What is the resolution of the AD420ARZ-32-REEL?
The AD420ARZ-32-REEL has a 16-bit resolution.
- What are the key features of the on-chip reference in the AD420ARZ-32-REEL?
The on-chip reference is a 5 V reference with a maximum temperature coefficient of 25 ppm/°C. It can also be used to supply a precision voltage to external components.
- What is the operating temperature range of the AD420ARZ-32-REEL?
The operating temperature range is from -40°C to +85°C.
- What types of packages are available for the AD420ARZ-32-REEL?
The device is available in SOIC-24-300mil and PDIP packages.
- What is the power supply range for the AD420ARZ-32-REEL?
The power supply range is from 12 V to 32 V.
- Does the AD420ARZ-32-REEL have fault detection capabilities?
- What is the output loop compliance of the AD420ARZ-32-REEL?
The output loop compliance is from 0 V to VCC - 2.75 V.
- Can the AD420ARZ-32-REEL be used in daisy-chaining configurations?
- What are some common applications of the AD420ARZ-32-REEL?
