Overview
The AD841KN is a wideband, unity-gain stable, fast settling operational amplifier produced by Analog Devices Inc. This amplifier is part of a high-speed, high-precision family of operational amplifiers, making it ideal for various high-frequency signal conditioning applications. The AD841KN is fabricated using Analog Devices’ junction isolated complementary bipolar (CB) process, which combines DC precision with wideband AC performance.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage | 1 | 1 | mV | |
| Open-Loop Gain | 45 | V/mV | ||
| Output Current | 50 | mA | ||
| Supply Current | 12 | 12 | mA | |
| Full Power Bandwidth | MHz | |||
| Slew Rate | V/μs | |||
| Operating Temperature Range | 0 | 70 | °C | |
| Power Supply Rejection Ratio | 86 | 100 | dB | |
| Package Types | PDIP, CERDIP, LCC |
Key Features
- High Slew Rate and Fast Settling Time: Ideal for DAC and ADC buffers, video instrumentation, and other high-speed applications.
- Precision Amplifier: Offers accuracy to 0.01% or better and wide bandwidth performance.
- Thermally Balanced Layout: Settles to 0.01% in 110 ns without long tails.
- Laser Wafer Trimming: Reduces input offset voltage to 1 mV maximum, eliminating the need for external offset nulling in many applications.
- Offset Null Pins: Provided for additional versatility.
Applications
- High Speed Signal Conditioning: Suitable for high-frequency signal conditioning circuits and wide bandwidth active filters.
- Video and Pulse Amplifiers: Ideal for video instrumentation and pulse amplification.
- Data Acquisition Systems: Used in data acquisition systems for precise signal conditioning.
- Line Drivers: Effective as line drivers due to its high output current capability.
- Active Filters: Used in active filter circuits requiring fast settling times and high precision.
Q & A
- What is the typical input offset voltage of the AD841KN?
The typical input offset voltage of the AD841KN is 1 mV.
- What is the slew rate of the AD841KN?
The slew rate of the AD841KN is not explicitly stated in the provided sources, but it is known for its high slew rate and fast settling time.
- What are the package options available for the AD841KN?
The AD841KN is available in 14-pin plastic PDIP, 14-pin hermetic CERDIP, and 20-pin LCC packages.
- What is the operating temperature range of the AD841KN?
The operating temperature range of the AD841KN is from 0°C to 70°C.
- What is the power supply rejection ratio of the AD841KN?
The power supply rejection ratio of the AD841KN is 86 dB to 100 dB.
- What are some typical applications of the AD841KN?
The AD841KN is typically used in high-speed signal conditioning, video and pulse amplifiers, data acquisition systems, line drivers, and active filters.
- How does the AD841KN achieve its high precision and fast settling time?
The AD841KN achieves its high precision and fast settling time through its thermally balanced layout and the use of Analog Devices’ junction isolated complementary bipolar (CB) process.
- Does the AD841KN require external offset nulling?
No, the AD841KN does not require external offset nulling due to laser wafer trimming that reduces the input offset voltage to 1 mV maximum.
- What is the output current capability of the AD841KN?
The AD841KN has a minimum output current capability of 50 mA.
- Is the AD841KN suitable for military applications?
Yes, the AD841KN is available in versions that meet military standards, such as the MIL-STD-883B.
