Overview
The AD820BR, produced by Analog Devices Inc., is a precision, low-power FET input operational amplifier (op amp) designed for a wide range of applications. It features true single-supply operation and can function with supply voltages from 5 V to 36 V or dual supplies from ±2.5 V to ±18 V. This op amp is known for its rail-to-rail output swing and its ability to handle input voltages below ground, making it highly versatile for various electronic circuits.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | 5 | 36 | V | ||
| Dual Supply Voltage | ±2.5 | ±18 | V | ||
| Unity Gain Frequency | 1.9 | 1.8 | MHz | ||
| Slew Rate | 3 | 3 | V/μs | ||
| Input Bias Current | VCM = 0 V to 4 V | 2 | 25 | pA | |
| Offset Voltage | 0.1 | 0.8 | 0.4 | mV | |
| Offset Voltage Drift | 2 | 2 | μV/°C | ||
| Common-Mode Voltage Range | TMIN to TMAX | -15.2 | +14 | V | |
| Output Current | 15 | mA | |||
| Operating Temperature Range | -40 | +85 | °C |
Key Features
- True single-supply operation with a wide supply voltage range (5 V to 36 V or ±2.5 V to ±18 V)
- Rail-to-rail output swing and input voltage range extending below ground
- Low power consumption with a typical supply current of 800 μA
- High precision with low offset voltage (maximum 0.8 mV) and low offset voltage drift (2 μV/°C)
- Low input bias currents (typically below 25 pA)
- High unity gain bandwidth (1.8 MHz) and slew rate (3 V/μs)
- Strong load drive capability with a minimum output current of 15 mA and the ability to drive up to 350 pF of direct capacitive load
- Available in 8-lead SOIC, MSOP, and PDIP packages
Applications
- Laboratory and testing equipment: Used for signal amplification, frequency conversion, and noise control.
- Medical field: Employed in medical devices and diagnostic systems to enhance signal accuracy and precision.
- Audio processing: Utilized in sound systems, headphones, and speakers to enhance volume and clarity.
- Video equipment: Used in TVs, monitors, and projectors to enhance video signal brightness and contrast.
- Industrial automation: Applied in industrial control equipment, measuring instruments, and robots for precise control and measurement.
Q & A
- What is the supply voltage range for the AD820BR?
The AD820BR can operate from a single supply of 5 V to 36 V or dual supplies of ±2.5 V to ±18 V. - What is the typical supply current of the AD820BR?
The typical supply current is 800 μA. - What is the unity gain bandwidth of the AD820BR?
The unity gain bandwidth is 1.8 MHz. - What is the slew rate of the AD820BR?
The slew rate is 3 V/μs. - What is the maximum offset voltage of the AD820BR?
The maximum offset voltage is 0.8 mV. - What is the common-mode voltage range of the AD820BR?
The common-mode voltage range is from -15.2 V to +14 V. - What is the operating temperature range of the AD820BR?
The operating temperature range is from -40°C to +85°C. - What types of packages are available for the AD820BR?
The AD820BR is available in 8-lead SOIC, MSOP, and PDIP packages. - What is the typical input bias current of the AD820BR?
The typical input bias current is below 25 pA. - What is the minimum output current of the AD820BR?
The minimum output current is 15 mA.
