Overview
The AD841JN is a high-speed, high-precision operational amplifier from Analog Devices, Inc. It is part of a family of wide bandwidth operational amplifiers that include the AD842. The AD841 is known for its excellent dc precision and wideband ac performance, making it suitable for a variety of high-frequency applications. Fabricated using Analog Devices’ junction isolated complementary bipolar (CB) process, this amplifier offers a unique combination of speed and precision.
Key Specifications
| Parameter | Typical | Maximum | Units |
|---|---|---|---|
| Unity-Gain Bandwidth | 40 | MHz | |
| Slew Rate | 300 | V/μs | |
| Input Voltage Noise | 15 | nV/√Hz | |
| Input Offset Voltage | 1 | mV | |
| Output Current Drive | 50 | mA | |
| Supply Current | 12 | mA | |
| Settling Time (0.01% for 10V step) | 110 | ns | |
| Operating Temperature Range | -40°C to +125°C |
Key Features
- High slew rate and fast settling time, making it ideal for DAC and ADC buffers, video instrumentation circuitry, and other wide bandwidth applications.
- Precision amplifier with accuracy to 0.01% or better and wide bandwidth performance.
- Thermally balanced layout and rapid settling time without long tails.
- Laser wafer trimming reduces input offset voltage to 1 mV maximum, eliminating the need for external offset nulling in many applications.
- No external compensation required; stable over the full operating temperature range.
- Low quiescent current of 12 mA maximum.
Applications
- High speed signal conditioning.
- Video and pulse amplifiers.
- Data acquisition systems.
- Line drivers.
- Active filters.
- High speed DAC and ADC buffer amplifiers.
Q & A
- What is the unity-gain bandwidth of the AD841JN? The unity-gain bandwidth of the AD841JN is 40 MHz.
- What is the slew rate of the AD841JN? The slew rate of the AD841JN is 300 V/μs.
- What is the input voltage noise of the AD841JN? The input voltage noise of the AD841JN is 15 nV/√Hz.
- What is the maximum input offset voltage of the AD841JN? The maximum input offset voltage of the AD841JN is 1 mV.
- What is the minimum output current drive capability of the AD841JN? The minimum output current drive capability of the AD841JN is 50 mA.
- Does the AD841JN require external compensation? No, the AD841JN does not require external compensation.
- What is the settling time of the AD841JN for a 10V step to within 0.01% of the final value? The settling time of the AD841JN for a 10V step to within 0.01% of the final value is 110 ns.
- In what temperature range can the AD841JN operate? The AD841JN can operate in a temperature range of -40°C to +125°C.
- What are some common applications of the AD841JN? Common applications include high speed signal conditioning, video and pulse amplifiers, data acquisition systems, line drivers, and active filters.
- What package options are available for the AD841JN? The AD841JN is available in 14-pin plastic PDIP, 14-pin hermetic CERDIP, and 20-pin LCC packages.
