Overview
The AD842JNZ is a wideband, high output current, fast settling operational amplifier produced by Analog Devices Inc. This device is part of Analog Devices' family of high-performance operational amplifiers, designed to offer exceptional AC and DC performance. The AD842JNZ is fabricated using advanced semiconductor technology, ensuring high accuracy and reliability in various high-frequency applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage | 0.5 | 1.5 | 1.5 | mV |
| Input Offset Drift | 14 | 14 | 14 | µV/°C |
| Input Bias Current | 3.5 | 8 | 8 | µA |
| Input Voltage Noise | 9 | nV/√Hz | ||
| Open-Loop Gain | 90 | V/mV | ||
| Output Current | 100 | mA | ||
| Slew Rate | 375 | V/µs | ||
| Gain Bandwidth Product | 80 | MHz (gain = 2) | ||
| Full Power Bandwidth | 6 | MHz (20 V p-p) | ||
| Quiescent Supply Current | 13 | 14 | 16 | mA |
| Power Supply Rejection Ratio | 86 | 100 | 100 | dB |
Key Features
- High Slew Rate and Fast Settling Time: The AD842JNZ features a high slew rate of 375 V/µs and a fast settling time of 100 ns to 0.01% for a 10 V step, making it ideal for high-speed applications.
- Precision Amplifier: Offers accuracy to 0.01% or better and wide bandwidth, previously available only in hybrids.
- Laser-Wafer Trimming: Reduces the input offset voltage to a maximum of 1.5 mV, eliminating the need for external offset nulling in many applications.
- Full Differential Inputs: Provides outstanding performance in all standard high-frequency op amp applications where the circuit gain is 2 or greater.
- High Output Current: Capable of delivering a minimum output current of 100 mA.
Applications
- Line Drivers: Suitable for driving high-impedance loads and long cables.
- DAC and ADC Buffers: Ideal for buffering digital-to-analog and analog-to-digital converters due to its fast settling time and high slew rate.
- Video and Pulse Amplifiers: Used in various video and pulse instrumentation circuitry requiring high bandwidth and fast settling times.
- Military Applications: Available in MIL-STD-883B compliant versions for military use.
Q & A
- What is the gain bandwidth product of the AD842JNZ?
The gain bandwidth product of the AD842JNZ is 80 MHz at a gain of 2.
- What is the slew rate of the AD842JNZ?
The slew rate of the AD842JNZ is 375 V/µs.
- What is the maximum input offset voltage of the AD842JNZ?
The maximum input offset voltage is 1.5 mV.
- What is the full power bandwidth of the AD842JNZ for a 20 V p-p signal?
The full power bandwidth is 6 MHz for a 20 V p-p signal.
- What is the typical quiescent supply current of the AD842JNZ?
The typical quiescent supply current is 14 mA.
- What are the common applications of the AD842JNZ?
The AD842JNZ is commonly used in line drivers, DAC and ADC buffers, video and pulse amplifiers, and military applications.
- How does the AD842JNZ achieve low input offset voltage?
The AD842JNZ achieves low input offset voltage through laser-wafer trimming, reducing the need for external offset nulling.
- What is the power supply rejection ratio of the AD842JNZ?
The power supply rejection ratio is 86 dB to 100 dB.
- What is the minimum output current of the AD842JNZ?
The minimum output current is 100 mA.
- Is the AD842JNZ stable at all gains?
The AD842JNZ is stable at gains of 2 or greater.
