Overview
The AD820ARMZ-RL, produced by Analog Devices Inc., is a precision, low-power FET input operational amplifier. It is designed for single-supply or dual-supply operation, making it highly versatile for various applications. The AD820 can operate from a single supply of 5 V to 36 V or dual supplies of ±2.5 V to ±18 V. This amplifier features true single-supply capability with an input voltage range extending below the negative rail, allowing it to accommodate input signals below ground in single-supply mode. The output voltage swing extends to within 10 mV of each rail, providing maximum output dynamic range.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 5 | - | 36 | V (Single Supply) |
| Supply Voltage | ±2.5 | - | ±18 | V (Dual Supply) |
| Unity Gain Bandwidth | 1.8 | 1.8 | - | MHz |
| Slew Rate | 3 | 3 | - | V/μs |
| Input Bias Current | 2 | 25 | - | pA |
| Offset Voltage | 0.4 | 2 | 0.3 | mV |
| Offset Voltage Drift | 2 | 2 | - | μV/°C |
| Common-Mode Rejection Ratio (CMRR) | 66 | 80 | - | dB |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | - | - | - | 8-Lead MSOP |
Key Features
- True single-supply operation with input voltage range extending below the negative rail.
- Output voltage swing extends to within 10 mV of each rail, providing maximum output dynamic range.
- Low power consumption with a supply current of 800 μA.
- High precision with offset voltage of 800 μV maximum and offset voltage drift of 2 μV/°C.
- Low input bias currents below 25 pA and low input voltage noise.
- Capacitive load drive up to 350 pF and minimum output current of 15 mA.
- Excellent load drive capability and wide range of load conditions handling.
- Available in 8-Lead MSOP package.
Applications
- Single-supply systems where input signals may be below ground.
- Portable and battery-powered devices due to low power consumption.
- Medical instrumentation and precision data acquisition.
- Transducer interfaces and other applications requiring high precision and low noise.
- General-purpose amplification in various industrial and consumer electronics.
Q & A
- What is the operating temperature range of the AD820ARMZ-RL?
The operating temperature range is from -40°C to +85°C.
- What are the supply voltage ranges for the AD820ARMZ-RL?
The AD820 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 unity gain bandwidth of the AD820ARMZ-RL?
The unity gain bandwidth is 1.8 MHz.
- What is the slew rate of the AD820ARMZ-RL?
The slew rate is 3 V/μs.
- What is the typical input bias current of the AD820ARMZ-RL?
The typical input bias current is below 25 pA.
- What is the maximum offset voltage of the AD820ARMZ-RL?
The maximum offset voltage is 800 μV.
- What is the common-mode rejection ratio (CMRR) of the AD820ARMZ-RL?
The CMRR is typically 80 dB.
- What is the capacitive load drive capability of the AD820ARMZ-RL?
The AD820 can drive up to 350 pF of direct capacitive load.
- What is the minimum output current of the AD820ARMZ-RL?
The minimum output current is 15 mA.
- In what package is the AD820ARMZ-RL available?
The AD820ARMZ-RL is available in an 8-Lead MSOP package.
