Overview
The ADA4084-1ARZ-RL is a high-performance, low-noise operational amplifier produced by Analog Devices Inc. This device is part of the ADA4084 series, which includes single (ADA4084-1), dual (ADA4084-2), and quad (ADA4084-4) configurations. The ADA4084-1ARZ-RL is a single-channel, rail-to-rail input/output operational amplifier designed for single-supply applications requiring both AC and precision DC performance.
It operates over a wide supply voltage range from +3 V to +30 V (or ±1.5 V to ±15 V), making it suitable for a variety of applications, including battery-powered instrumentation, telecommunications, and power supply control and protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage - Max | 18 V, +/- 15 V | V |
| Supply Voltage - Min | 3 V, +/- 1.5 V | V |
| Gain Bandwidth Product (GBP) | 15.9 MHz | MHz |
| Output Current per Channel | 30 mA | mA |
| Slew Rate (SR) | 4.6 V/µs | V/µs |
| Input Offset Voltage (Vos) | 100 µV | µV |
| Input Bias Current (Ib) | 140 nA | nA |
| Input Offset Current (Ios) | 5 nA | nA |
| Common Mode Rejection Ratio (CMRR) | 124 dB | dB |
| Power Supply Rejection Ratio (PSRR) | 120 dB | dB |
| Input Voltage Noise Density (en) | 3.9 nV/√Hz | nV/√Hz |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | 8-Lead SOIC |
Key Features
- Rail-to-rail input and output, allowing for full signal swing and high signal-to-noise ratios in single-supply systems.
- Low noise: 3.9 nV/√Hz typical at 1 kHz, making it suitable for precision applications.
- High slew rate: 4.6 V/µs typical, enabling fast response times.
- Low input offset voltage: 100 µV maximum, ensuring high precision.
- Unity-gain stable with a gain bandwidth product of 15.9 MHz.
- Low power consumption: 0.625 mA typical per amplifier at ±15 V.
- High common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR), providing robust performance against common-mode and power supply noise.
Applications
- Battery-powered instrumentation: Ideal for portable and low-power applications.
- High-side and low-side sensing: Suitable for various sensing applications.
- Power supply control and protection: Used in power supply circuits for control and protection.
- Telecommunications: Employed in portable telecommunications equipment.
- Digital-to-analog converter (DAC) output amplifiers and analog-to-digital converter (ADC) input buffers: Enhances performance in data conversion applications.
- Filters and instrumentation: Useful in multistage filters and precision instrumentation.
- Transducer amplifiers and buffers: Suitable for amplifying signals from Hall effect, piezoelectric, and resistive transducers.
Q & A
- What is the supply voltage range for the ADA4084-1ARZ-RL?
The ADA4084-1ARZ-RL operates from +3 V to +30 V (or ±1.5 V to ±15 V).
- What is the gain bandwidth product (GBP) of the ADA4084-1ARZ-RL?
The GBP is 15.9 MHz.
- What is the slew rate of the ADA4084-1ARZ-RL?
The slew rate is 4.6 V/µs typical.
- What is the input offset voltage of the ADA4084-1ARZ-RL?
The input offset voltage is 100 µV maximum.
- What is the noise performance of the ADA4084-1ARZ-RL?
The input voltage noise density is 3.9 nV/√Hz typical at 1 kHz.
- What are the common applications of the ADA4084-1ARZ-RL?
Applications include battery-powered instrumentation, high-side and low-side sensing, power supply control and protection, telecommunications, DAC output amplifiers, ADC input buffers, filters, and instrumentation.
- What is the operating temperature range of the ADA4084-1ARZ-RL?
The operating temperature range is -40°C to +125°C.
- What package types are available for the ADA4084-1ARZ-RL?
The ADA4084-1 is available in 5-lead SOT-23 and 8-lead SOIC packages.
- Is the ADA4084-1ARZ-RL unity-gain stable?
Yes, the ADA4084-1ARZ-RL is unity-gain stable.
- What is the common-mode rejection ratio (CMRR) of the ADA4084-1ARZ-RL?
The CMRR is 124 dB.
