Overview
The ADA4000-4ARUZ from Analog Devices Inc. is a precision junction field effect transistor (JFET) input operational amplifier. This device is part of the ADA4000 series, known for its high slew rate, fast settling time, and low offset voltage. It is designed to offer high input impedance, very low input bias current, and low power consumption, making it ideal for a variety of precision analog applications.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Input Bias Current | 40 pA (max) | −40°C ≤ TA ≤ +85°C |
| Offset Voltage | 1.70 mV (max) | |
| Supply Voltage | ±4 V to ±18 V | |
| Slew Rate | 20 V/μs | VI = 10 V, RL = 2 kΩ |
| Gain Bandwidth Product | 5 MHz | |
| Voltage Noise Density | 16 nV/√Hz | f = 1 kHz |
| Common-Mode Rejection Ratio (CMRR) | 80 dB | −40°C ≤ TA ≤ +125°C |
| Output Voltage High | 4.20 V (max) | RL = 2 kΩ to ground |
| Output Voltage Low | −3.20 V (max) | RL = 2 kΩ to ground |
| Short-Circuit Current | ±28 mA | |
| Supply Current/Amplifier | 1.65 mA (max) | −40°C ≤ TA ≤ +125°C |
Key Features
- High slew rate: 20 V/μs
- Fast settling time
- Low offset voltage: 1.70 mV maximum
- Very low input bias current: 40 pA maximum
- Wide supply voltage range: ±4 V to ±18 V
- Low voltage noise: 16 nV/√Hz at 1 kHz
- Unity gain stable
- Wide bandwidth: 5 MHz
- High input impedance and low power consumption
Applications
- Reference gain/buffers
- Level shift/driving
- Active filters
- Power line monitoring/control
- Current/voltage sense or monitoring
- Data acquisition
- Sample-and-hold circuits
- Integrators
- Electronic instruments
- Automated test equipment (ATE) amplification and buffering
- Instrumentation-quality photodiode amplification
Q & A
- What is the input bias current of the ADA4000-4ARUZ?
The input bias current is 40 pA maximum at −40°C ≤ TA ≤ +85°C. - What is the slew rate of the ADA4000-4ARUZ?
The slew rate is 20 V/μs. - What is the supply voltage range for the ADA4000-4ARUZ?
The supply voltage range is ±4 V to ±18 V. - What is the common-mode rejection ratio (CMRR) of the ADA4000-4ARUZ?
The CMRR is 80 dB at −40°C ≤ TA ≤ +125°C. - What are some typical applications of the ADA4000-4ARUZ?
Typical applications include reference gain/buffers, level shift/driving, active filters, power line monitoring/control, and data acquisition. - What is the gain bandwidth product of the ADA4000-4ARUZ?
The gain bandwidth product is 5 MHz. - How much voltage noise does the ADA4000-4ARUZ have?
The voltage noise density is 16 nV/√Hz at 1 kHz. - Is the ADA4000-4ARUZ unity gain stable?
Yes, the ADA4000-4ARUZ is unity gain stable. - What is the output short-circuit current of the ADA4000-4ARUZ?
The output short-circuit current is ±28 mA. - What is the operating temperature range for the ADA4000-4ARUZ?
The operating temperature range is −40°C to +125°C.
