Overview
The AD820BRZ from Analog Devices Inc. is a precision, low-power, FET-input operational amplifier designed for single-supply or dual-supply operation. It is known for its true single-supply operation, rail-to-rail output swing, and low input bias currents. This op amp is highly versatile and suitable for a wide range of applications requiring high precision and low power consumption.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | 5 | 36 | V | ||
| Dual Supply Voltage | ±2.5 | ±18 | V | ||
| Initial Offset Voltage | 0.1 | 0.8 | 0.4 | mV | |
| Offset Voltage Drift | 2 | μV/°C | |||
| Input Bias Current | VCM = 0 V to 4 V | 2 | 25 | 10 | pA |
| Unity Gain Bandwidth | 1.9 | 1.8 | MHz | ||
| Slew Rate | 3 | V/μs | |||
| Common-Mode Voltage Range | TMIN to TMAX | -5.2 | +4 | V | |
| Output Current | 15 | mA | |||
| Package Options | PDIP, SOIC, MSOP |
Key Features
- True single-supply operation with rail-to-rail output swing.
- Low input bias currents (typically below 25 pA) and low input voltage noise.
- High precision with an offset voltage of 0.8 mV maximum and an offset voltage drift of 2 μV/°C.
- Low power consumption with a supply current of 800 μA.
- High unity gain bandwidth of 1.8 MHz and a slew rate of 3 V/μs.
- Ability to drive up to 350 pF of direct capacitive load and provide a minimum output current of 15 mA.
- Available in industrial temperature range (-40°C to +85°C) and in various package options (PDIP, SOIC, MSOP).
Applications
The AD820BRZ is suitable for a variety of applications, including:
- Precision instrumentation and measurement systems.
- Medical devices requiring low noise and high precision.
- Audio and video equipment where low distortion is critical.
- Industrial control systems and automation.
- Battery-powered devices due to its low power consumption.
Q & A
- What is the supply voltage range for the AD820BRZ?
The AD820BRZ 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 input bias current of the AD820BRZ?
The typical input bias current is below 25 pA. - What is the unity gain bandwidth of the AD820BRZ?
The unity gain bandwidth is 1.8 MHz. - What is the slew rate of the AD820BRZ?
The slew rate is 3 V/μs. - Can the AD820BRZ drive capacitive loads?
Yes, it can drive up to 350 pF of direct capacitive load. - What are the package options available for the AD820BRZ?
The AD820BRZ is available in PDIP, SOIC, and MSOP package options. - What is the operating temperature range for the AD820BRZ?
The operating temperature range is -40°C to +85°C. - What are some typical applications for the AD820BRZ?
Typical applications include precision instrumentation, medical devices, audio and video equipment, industrial control systems, and battery-powered devices. - How much output current can the AD820BRZ provide?
The AD820BRZ can provide a minimum output current of 15 mA. - What is the common-mode voltage range for the AD820BRZ?
The common-mode voltage range is from -5.2 V to +4 V.
