Overview
The ADA4084-2ARMZ is a dual-channel, rail-to-rail input/output, low-power operational amplifier produced by Analog Devices Inc. This amplifier is designed for single-supply applications that require both AC and precision DC performance. It features a wide bandwidth, low noise, and high precision, making it suitable for a variety of applications including filters, instrumentation, portable telecommunications equipment, power supply control and protection, and as amplifiers or buffers for transducers with wide output ranges.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Number of Channels | 2 | |
| Gain Bandwidth Product | 15.9 MHz | |
| Unity-Gain Crossover | 9.9 MHz | |
| −3 dB Closed-Loop Bandwidth | 13.9 MHz | |
| Offset Voltage | 130 µV (MSOP package) | µV |
| Slew Rate | 4.6 V/µs | V/µs |
| Voltage Noise Density | 3.9 nV/√Hz | nV/√Hz |
| Input Bias Current | 140 nA | nA |
| Operating Temperature Range | −40°C to +125°C | °C |
| Supply Voltage Range | +3 V to +30 V (or ±1.5 V to ±15 V) | V |
| Package Type | 8-lead MSOP |
Key Features
- Rail-to-rail input and output capability
- Low power consumption: 0.625 mA typical per amplifier at ±15 V
- High gain bandwidth product: 15.9 MHz typical
- Low noise: 3.9 nV/√Hz typical at 1 kHz
- High slew rate: 4.6 V/µs typical
- Unity-gain stable
- Low offset voltage: 130 µV maximum in MSOP package
- Long-term offset voltage drift: 3 µV typical over 10,000 hours
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
- Portable telecommunications equipment
- Amplifiers or buffers for transducers with wide output ranges
Q & A
- What is the typical gain bandwidth product of the ADA4084-2ARMZ?
The typical gain bandwidth product is 15.9 MHz.
- What is the operating temperature range of the ADA4084-2ARMZ?
The operating temperature range is −40°C to +125°C.
- What is the typical slew rate of the ADA4084-2ARMZ?
The typical slew rate is 4.6 V/µs.
- What is the voltage noise density of the ADA4084-2ARMZ?
The voltage noise density is 3.9 nV/√Hz at 1 kHz.
- What is the typical input bias current of the ADA4084-2ARMZ?
The typical input bias current is 140 nA.
- What are the common applications of the ADA4084-2ARMZ?
Common applications include battery-powered instrumentation, high-side and low-side sensing, power supply control and protection, telecommunications equipment, DAC output amplifiers, ADC input buffers, and more.
- What is the package type of the ADA4084-2ARMZ?
The package type is 8-lead MSOP.
- What is the supply voltage range for the ADA4084-2ARMZ?
The supply voltage range is +3 V to +30 V (or ±1.5 V to ±15 V).
- Is the ADA4084-2ARMZ unity-gain stable?
Yes, the ADA4084-2ARMZ is unity-gain stable.
- What is the typical offset voltage of the ADA4084-2ARMZ in MSOP package?
The typical offset voltage is 130 µV in MSOP package.
