Overview
The AD622ARZ-R7 is a low-cost instrumentation amplifier produced by Analog Devices Inc. It is designed to provide superior DC accuracy, low power consumption, and a wide range of gain settings. This amplifier is part of the AD622 series and is known for its simplicity and effectiveness in various applications. The AD622ARZ-R7 requires only one external resistor to set any gain between 2 and 1000, making it highly versatile and easy to use in different configurations.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Gain Range | 1 | 1000 | |||
| Gain Error (G = 1) | VOUT = ±10 V | 0.05% | 0.15% | % | |
| Gain Error (G = 10) | VOUT = ±10 V | 0.2% | 0.50% | % | |
| Gain Error (G = 100) | VOUT = ±10 V | 0.2% | 0.50% | % | |
| Gain Error (G = 1000) | VOUT = ±10 V | 0.2% | 0.50% | % | |
| Nonlinearity | VOUT = ±10 V, RL = 10 kΩ | 10 ppm | |||
| Output Swing | RL = 10 kΩ, VS = ±2.6 V to ±5 V | -VS + 1.1 | +VS – 1.2 | V | |
| Supply Voltage | ±18 V | V | |||
| Operating Temperature Range | -40°C | +85°C | °C | ||
| Package | SOIC-8 |
Key Features
- Low Cost and High Accuracy: The AD622ARZ-R7 offers a cost-effective solution with moderately accurate instrumentation amplifier capabilities.
- Flexible Gain Settings: The gain can be set between 2 and 1000 using a single external resistor, with no resistor required for a gain of 1.
- Superior Linearity and Common-Mode Rejection: Incorporates precision laser-trimmed resistors to ensure superior linearity and common-mode rejection.
- Wide Common-Mode Input Range: Supports a common-mode input range of ±15 V.
- Low Power Consumption: Designed with low power consumption, making it suitable for battery-powered devices.
- Reference Terminal: The reference terminal allows for precise offset injection to the output, useful in systems where the load does not share a precise ground with the rest of the system.
- Input Protection: Safely withstands input currents of ±60 mA for several hours at room temperature.
Applications
- Medical Instrumentation: Suitable for medical devices due to its high accuracy and low noise characteristics.
- Industrial Controls: Used in industrial control systems for precise signal amplification and conditioning.
- Process Control: Ideal for process control applications requiring reliable and accurate signal processing.
- Data Acquisition Systems: Often used in data acquisition systems where high accuracy and flexibility in gain settings are crucial.
Q & A
- What is the gain range of the AD622ARZ-R7?
The gain range of the AD622ARZ-R7 is from 1 to 1000, set using a single external resistor.
- What package type is the AD622ARZ-R7 available in?
The AD622ARZ-R7 is available in an 8-lead SOIC package.
- What is the operating temperature range of the AD622ARZ-R7?
The operating temperature range is from -40°C to +85°C.
- What is the maximum supply voltage for the AD622ARZ-R7?
The maximum supply voltage is ±18 V.
- Does the AD622ARZ-R7 have input protection features?
Yes, it safely withstands input currents of ±60 mA for several hours at room temperature.
- What are the common applications of the AD622ARZ-R7?
Common applications include medical instrumentation, industrial controls, process control, and data acquisition systems.
- How does the reference terminal of the AD622ARZ-R7 function?
The reference terminal allows for precise offset injection to the output, which is useful in systems where the load does not share a precise ground with the rest of the system.
- What is the typical output swing of the AD622ARZ-R7?
The output swing is from -VS + 1.1 V to +VS – 1.2 V for supply voltages between ±2.6 V and ±5 V.
- Does the AD622ARZ-R7 have any specific noise characteristics?
Yes, it has low 1/f noise and other noise characteristics that make it suitable for high-accuracy applications.
- Is the AD622ARZ-R7 RoHS compliant?
Yes, the AD622ARZ-R7 is RoHS compliant.
