Overview
The AD820AN-3V, produced by Analog Devices Inc., is a precision, low-power FET-input operational amplifier. This device is designed to operate from a single supply voltage ranging from 3 V to 36 V, or from dual supplies ranging from ±1.5 V to ±18 V. It is particularly noted for its rail-to-rail output swing and its ability to handle capacitive loads up to 350 pF. The AD820AN-3V is available in 8-lead packages, including plastic DIP and surface mount (SOIC) options, making it versatile for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage Range | 3 | - | 36 | V |
| Dual Supply Voltage Range | ±1.5 | - | ±18 | V |
| Quiescent Current | 620 | 800 | 900 | µA |
| Input Offset Voltage | 0.2 | 1 | 3 | mV |
| Input Offset Voltage Drift | 1 | - | - | µV/°C |
| Input Bias Current | 2 | 25 | - | pA |
| Slew Rate | - | 3 | - | V/µs |
| Unity Gain Bandwidth | - | 1.8 | - | MHz |
| Output Current | 15 | - | 20 | mA |
| Capacitive Load Drive | - | - | 350 | pF |
Key Features
- Rail-to-rail output swing, allowing the output voltage to swing to within millivolts of the supply rails.
- Low power consumption with a quiescent current of 800 µA maximum.
- Excellent load drive capability, including the ability to drive up to 350 pF of direct capacitive load.
- Minimum output current of 15 mA, ensuring robust performance under various load conditions.
- High AC performance with a unity gain bandwidth of 1.8 MHz and a slew rate of 3 V/µs.
- Low noise of 13 nV/√Hz at 10 kHz.
- Available in 8-lead plastic DIP and surface mount (SOIC) packages.
Applications
- Battery-powered precision instrumentation.
- Photodiode preamplifiers.
- Active filters.
- 12- to 14-bit data acquisition systems.
- Medical instrumentation.
- Low-power references and regulators.
Q & A
- What is the supply voltage range for the AD820AN-3V? The AD820AN-3V can operate from a single supply voltage ranging from 3 V to 36 V, or from dual supplies ranging from ±1.5 V to ±18 V.
- What is the quiescent current of the AD820AN-3V? The quiescent current is typically 800 µA, with a maximum of 900 µA.
- What is the input offset voltage of the AD820AN-3V? The input offset voltage is typically 1 mV, with a maximum of 3 mV.
- What is the slew rate of the AD820AN-3V? The slew rate is 3 V/µs.
- What is the unity gain bandwidth of the AD820AN-3V? The unity gain bandwidth is 1.8 MHz.
- Can the AD820AN-3V drive capacitive loads? Yes, it can drive up to 350 pF of direct capacitive load.
- What is the minimum output current of the AD820AN-3V? The minimum output current is 15 mA.
- In what packages is the AD820AN-3V available? It is available in 8-lead plastic DIP and surface mount (SOIC) packages.
- What are some typical applications of the AD820AN-3V? Typical applications include battery-powered precision instrumentation, photodiode preamplifiers, active filters, and medical instrumentation.
- What is the operating temperature range of the AD820AN-3V? The operating temperature range is from -40°C to +85°C.
