Overview
The ADA4084-4ARUZ from Analog Devices Inc. is a quad, single-supply operational amplifier featuring rail-to-rail inputs and outputs. These amplifiers are designed to operate from +3 V to +30 V (or ±1.5 V to ±15 V) and are well suited for applications requiring both AC and precision DC performance. They are part of a series of high-voltage, low-noise op amps that offer wide bandwidth, low noise, and precision, making them versatile for various applications including filters, instrumentation, and more.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Bandwidth | 10 MHz | - | - | - |
| Gain Bandwidth Product | 15.9 MHz (AV = 100) | - | - | - |
| Unity-Gain Crossover | 9.9 MHz | - | - | - |
| -3 dB Closed-Loop Bandwidth | 13.9 MHz (at ±15 V) | - | - | - |
| Offset Voltage | 100 µV (SOIC package) | 40 µV | 200 µV | µV |
| Offset Voltage Drift | 1.75 µV/°C | 0.5 µV/°C | - | µV/°C |
| Input Bias Current | 250 nA | 140 nA | 400 nA | nA |
| Input Offset Current | 25 nA | 5 nA | 50 nA | nA |
| Common-Mode Rejection Ratio | 106 dB (VCM = ±14 V) | 80 dB | 124 dB | dB |
| Large Signal Voltage Gain | 100 | - | 104 | - |
| Supply Voltage Range | +3 V to +30 V (or ±1.5 V to ±15 V) | - | - | V |
| Operating Temperature Range | -40°C to +125°C | - | - | °C |
| Noise Voltage Density | 3.9 nV/√Hz (at 1 kHz) | - | - | nV/√Hz |
| Slew Rate | 4.6 V/µs | - | - | V/µs |
Key Features
- Rail-to-rail inputs and outputs
- Low power consumption: 0.625 mA typical per amplifier at ±15 V
- High slew rate: 4.6 V/µs typical
- Low noise: 3.9 nV/√Hz typical at 1 kHz
- Unity-gain stable
- Low offset voltage: 100 µV maximum (SOIC package)
- High common-mode rejection ratio (CMRR): up to 106 dB
Applications
- Battery-powered instrumentation
- High-side and low-side sensing
- Power supply control and protection
- Telecommunications
- Digital-to-analog converter (DAC) output amplifiers
- Analog-to-digital converter (ADC) input buffers
- Filters and instrumentation
- Portable telecommunications equipment
- Amplifiers or buffers for transducers with wide output ranges
Q & A
- What is the bandwidth of the ADA4084-4ARUZ? The bandwidth of the ADA4084-4ARUZ is 10 MHz.
- What is the typical offset voltage of the ADA4084-4ARUZ? The typical offset voltage is 100 µV for the SOIC package.
- What is the slew rate of the ADA4084-4ARUZ? The slew rate is 4.6 V/µs typical.
- What is the noise voltage density of the ADA4084-4ARUZ? The noise voltage density is 3.9 nV/√Hz typical at 1 kHz.
- What is the operating temperature range of the ADA4084-4ARUZ? The operating temperature range is -40°C to +125°C.
- What are the typical applications of the ADA4084-4ARUZ? Typical applications include battery-powered instrumentation, high-side and low-side sensing, power supply control and protection, telecommunications, DAC output amplifiers, and ADC input buffers.
- What is the supply voltage range for the ADA4084-4ARUZ? The supply voltage range is +3 V to +30 V (or ±1.5 V to ±15 V).
- Is the ADA4084-4ARUZ unity-gain stable? Yes, the ADA4084-4ARUZ is unity-gain stable.
- What is the common-mode rejection ratio (CMRR) of the ADA4084-4ARUZ? The CMRR is up to 106 dB.
- What are the package options for the ADA4084-4ARUZ? The ADA4084-4 is available in 14-lead TSSOP and 16-lead LFCSP surface-mount packages.
