Overview
The ADA4084-4ARUZ-RL is a quad, single-supply operational amplifier produced by Analog Devices Inc. This amplifier is part of the ADA4084 series, which includes single (ADA4084-1), dual (ADA4084-2), and quad (ADA4084-4) configurations. The ADA4084-4 is designed for applications requiring both AC and precision DC performance, featuring rail-to-rail inputs and outputs. It operates over a wide voltage range from +3 V to +30 V (or ±1.5 V to ±15 V) and is specified over the industrial temperature range of −40°C to +125°C.
Key Specifications
| Parameter | Typical Value | Units |
|---|---|---|
| Supply Voltage Range | +3 V to +30 V (or ±1.5 V to ±15 V) | V |
| Current Consumption per Amplifier | 0.625 mA | mA |
| Gain Bandwidth Product | 15.9 MHz at AV = 100 | MHz |
| Unity-Gain Crossover Frequency | 9.9 MHz | MHz |
| −3 dB Closed-Loop Bandwidth | 13.9 MHz at ±15 V | MHz |
| Offset Voltage | 100 µV maximum (SOIC) | µV |
| Slew Rate | 4.6 V/µs | V/µs |
| Voltage Noise Density | 3.9 nV/√Hz at 1 kHz | nV/√Hz |
| Input Bias Current | 140 nA to 250 nA | nA |
| Common-Mode Rejection Ratio (CMRR) | 106 dB to 124 dB | dB |
| Power Supply Rejection Ratio (PSRR) | 110 dB to 120 dB | dB |
Key Features
- Rail-to-rail input and output
- Low power consumption: 0.625 mA typical per amplifier at ±15 V
- High gain bandwidth product: 15.9 MHz at AV = 100
- Unity-gain stable with a high slew rate: 4.6 V/µs
- Low noise: 3.9 nV/√Hz typical at 1 kHz
- Low offset voltage: 100 µV maximum (SOIC)
- High common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR)
- Operates over the industrial temperature range of −40°C to +125°C
Applications
- Battery-powered instrumentation
- High-side and low-side sensing
- Power supply control and protection
- Telecommunications equipment
- Digital-to-analog converter (DAC) output amplifiers
- Analog-to-digital converter (ADC) input buffers
- Filters and instrumentation
- Amplifiers or buffers for transducers with wide output ranges
- Sensors requiring rail-to-rail input amplifiers, such as Hall effect, piezoelectric, and resistive transducers
Q & A
- What is the supply voltage range for the ADA4084-4ARUZ-RL?
The ADA4084-4ARUZ-RL operates over a supply voltage range of +3 V to +30 V (or ±1.5 V to ±15 V).
- What is the typical current consumption per amplifier?
The typical current consumption per amplifier is 0.625 mA at ±15 V.
- What is the gain bandwidth product of the ADA4084-4ARUZ-RL?
The gain bandwidth product is 15.9 MHz at AV = 100.
- What is the slew rate of the ADA4084-4ARUZ-RL?
The slew rate is 4.6 V/µs typical.
- What is the voltage noise density of the ADA4084-4ARUZ-RL?
The voltage noise density is 3.9 nV/√Hz at 1 kHz.
- What are the key applications of the ADA4084-4ARUZ-RL?
The key applications include battery-powered instrumentation, high-side and low-side sensing, power supply control and protection, telecommunications, DAC output amplifiers, ADC input buffers, and more.
- What is the temperature range over which the ADA4084-4ARUZ-RL is specified?
The ADA4084-4ARUZ-RL is specified over the industrial temperature range of −40°C to +125°C.
- What are the package options available for the ADA4084-4?
The ADA4084-4 is available in 14-lead TSSOP and 16-lead LFCSP surface-mount packages.
- What is the common-mode rejection ratio (CMRR) of the ADA4084-4ARUZ-RL?
The CMRR is 106 dB to 124 dB.
- What is the power supply rejection ratio (PSRR) of the ADA4084-4ARUZ-RL?
The PSRR is 110 dB to 120 dB.
