Overview
The AD8200YR-REEL7, produced by Analog Devices Inc., is a high common-mode voltage, single-supply difference amplifier. This component is designed to extract small differential signals in the presence of large common-mode voltages, making it ideal for various industrial and precision measurement applications. The AD8200 features a preamp and buffer arrangement, incorporating a dynamic bridge (subtractor) circuit to maintain a balanced bridge network, thus rejecting common-mode voltages effectively.
Key Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| System Gain | Initial | 20 | 20 | - | V/V |
| Gain Error | - | -1 | - | +1 | % |
| Input Offset Voltage (RTI) | VCM = 0.15 V; 25°C | -1 | - | +1 | mV |
| Input Impedance (Differential) | - | 320 | 400 | 480 | kΩ |
| Input Impedance (Common-Mode) | - | 160 | 200 | 240 | kΩ |
| Common-Mode Voltage Range | - | -2 | - | +24 | V |
| Common-Mode Rejection Ratio (CMRR) | VCM = 10 V, f = 1 kHz | 80 | - | - | dB |
| Operating Temperature Range | - | -40 | - | +125 | °C |
Key Features
- High Common-Mode Voltage Range: The AD8200 can handle common-mode voltages from -2 V to +24 V, making it suitable for applications with large common-mode signals.
- Single-Supply Operation: The amplifier operates on a single supply voltage, simplifying the design and reducing the number of power sources needed.
- High Common-Mode Rejection Ratio (CMRR): With a CMRR of 80 dB at 1 kHz, the AD8200 effectively rejects common-mode noise and interference.
- Low Input Offset Voltage: The input offset voltage is typically 1 mV, ensuring high precision in signal extraction.
- Dynamic Bridge Circuit: The preamp incorporates a dynamic bridge circuit that helps in maintaining a balanced bridge network, thus enhancing the rejection of common-mode voltages.
Applications
- Precision Measurement Systems: The AD8200 is ideal for applications requiring the extraction of small differential signals in the presence of large common-mode voltages.
- Industrial Automation: It is used in various industrial automation applications where high common-mode rejection is necessary.
- Medical Devices: The AD8200 can be used in medical devices that require precise signal extraction and high common-mode rejection.
- Data Acquisition Systems: It is suitable for data acquisition systems that need to handle signals with large common-mode components.
Q & A
- What is the primary function of the AD8200YR-REEL7?
The primary function of the AD8200YR-REEL7 is to extract small differential signals in the presence of large common-mode voltages.
- What is the common-mode voltage range of the AD8200YR-REEL7?
The common-mode voltage range is from -2 V to +24 V.
- What is the typical input offset voltage of the AD8200YR-REEL7?
The typical input offset voltage is 1 mV.
- What is the common-mode rejection ratio (CMRR) of the AD8200YR-REEL7 at 1 kHz?
The CMRR is 80 dB at 1 kHz.
- What is the operating temperature range of the AD8200YR-REEL7?
The operating temperature range is from -40°C to +125°C.
- How does the AD8200YR-REEL7 handle common-mode voltages?
The AD8200YR-REEL7 uses a dynamic bridge circuit to maintain a balanced bridge network, effectively rejecting common-mode voltages.
- What types of applications is the AD8200YR-REEL7 suitable for?
The AD8200YR-REEL7 is suitable for precision measurement systems, industrial automation, medical devices, and data acquisition systems.
- Does the AD8200YR-REEL7 operate on a single supply or dual supply?
The AD8200YR-REEL7 operates on a single supply.
- What is the typical gain of the AD8200YR-REEL7?
The typical gain is 20 V/V.
- How does the AD8200YR-REEL7 mitigate the effects of charge injection from microcontrollers?
The AD8200YR-REEL7 can mitigate the effects of charge injection by including an R-C network in the output to absorb transient charges and lower the high-frequency output impedance.
