Overview
The ADA4001-2ARZ is a dual-channel JFET operational amplifier produced by Analog Devices Inc. This amplifier is distinguished by its low input voltage noise, low input bias current, and rail-to-rail output. It is particularly suited for applications requiring high accuracy and low noise, such as medical instruments, electronic measurement, and automated test equipment. The ADA4001-2ARZ operates over an extended industrial temperature range of −40°C to +125°C and is available in an 8-lead narrow SOIC package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain Bandwidth Product (GBP) | 16.7 | MHz |
| Unity-Gain Crossover (UGC) | 10.2 | MHz |
| Phase Margin (φM) | 76 | Degrees |
| −3 dB Closed-Loop Bandwidth | 10.3 | MHz |
| Settling Time (tS) to 0.01% | 1.2 | μs |
| Total Harmonic Distortion (THD) + Noise | 0.00006% | |
| Voltage Noise (en rms) 20 Hz to 20 kHz | 1.2 | μV rms |
| Voltage Noise Density (en f = 1 kHz) | 7.7 | nV/√Hz |
| Current Noise Density (in f = 1 kHz) | 3 | fA/√Hz |
| Input Bias Current | 40 | pA |
| Input Offset Voltage | 1.70 | mV |
| Operating Voltage Range | ±4 V to ±18 V | |
| Package Type | 8-Lead SOIC_N | |
| Temperature Range | −40°C to +125°C |
Key Features
- Low input voltage noise and current noise
- Low input bias current (maximum 40 pA)
- Rail-to-rail output
- No phase reversal when input voltages exceed the maximum common-mode voltage range
- Fast settling times (1.2 μs to 0.01%) and high slew rate (20 V/μs)
- Unity-gain stable with a phase margin of 76 degrees
- Low total harmonic distortion and noise
- Operates over an extended industrial temperature range (−40°C to +125°C)
Applications
- Instrumentation
- Medical instruments
- Multipole filters
- Precision current measurement
- Photodiode amplifiers
- Sensors
- Audio applications
Q & A
- What is the ADA4001-2ARZ?
The ADA4001-2ARZ is a dual-channel JFET operational amplifier produced by Analog Devices Inc.
- What are the key features of the ADA4001-2ARZ?
Key features include low input voltage noise, low input bias current, rail-to-rail output, fast settling times, and high slew rate.
- What is the operating voltage range of the ADA4001-2ARZ?
The ADA4001-2ARZ operates within a voltage range of ±4 V to ±18 V.
- What is the temperature range for the ADA4001-2ARZ?
The ADA4001-2ARZ is specified over an extended industrial temperature range of −40°C to +125°C.
- What package type is the ADA4001-2ARZ available in?
The ADA4001-2ARZ is available in an 8-lead narrow SOIC package.
- What are some common applications for the ADA4001-2ARZ?
Common applications include instrumentation, medical instruments, multipole filters, precision current measurement, photodiode amplifiers, sensors, and audio applications.
- Does the ADA4001-2ARZ suffer from output phase reversal?
No, the ADA4001-2ARZ does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range.
- What is the settling time of the ADA4001-2ARZ?
The settling time to 0.01% is 1.2 μs for a 10 V step at a gain of +1.
- What is the total harmonic distortion (THD) + noise of the ADA4001-2ARZ?
The total harmonic distortion (THD) + noise is 0.00006% at 1 kHz with a gain of +1 and a load resistance of 2 kΩ.
- Is the ADA4001-2ARZ RoHS compliant?
