Overview
The ADA4841-2YRMZ, produced by Analog Devices Inc., is a high-performance operational amplifier designed for low noise, low distortion, and low power consumption. This unity gain stable amplifier features a rail-to-rail output stage, making it ideal for applications requiring high precision and linearity. With a quiescent current of 1.5 mA, it is well-suited for battery-powered and power-sensitive applications. The ADA4841-2 is particularly useful in driving high-resolution analog-to-digital converters (ADCs) and is compatible with industrial, medical, and portable instrumentation environments.
Key Specifications
| Parameter | Value |
|---|---|
| Gain Bandwidth | 80 MHz |
| Slew Rate | 12 V/μs |
| Minimum Operating Voltage | 2.7 V |
| Maximum Operating Voltage | 12 V |
| Quiescent Current per Amplifier | 1.2 - 1.5 mA |
| Input Offset Voltage | 70 μV |
| Input Bias Current | 60 nA |
| Common-Mode Rejection Ratio (CMRR) | 86 - 115 dB |
| Output Voltage Swing | ±4.9 V to ±4.955 V (G > +1) |
| Output Current Limit | 30 mA (sourcing), 60 mA (sinking) |
| Capacitive Load Drive | 15 pF with 30% overshoot |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- Low power consumption: 1.1 mA/amp typical quiescent current.
- Low wideband noise: 2.1 nV/√Hz and low 1/f noise: 7 nV/√Hz @ 10 Hz.
- Low distortion: −105 dBc @ 100 kHz.
- Rail-to-rail output stage for maximum linear signal range on low voltage supplies.
- High gain bandwidth and slew rate for maintaining linearity at high frequencies.
- Power-down function (ADA4841-1) to reduce power consumption further).
- RoHS compliant lead finishes and industrial temperature range (−40°C to +125°C)).
Applications
- Portable instrumentation and high channel count systems).
- Industrial measurement and control systems).
- Medical devices requiring high precision and low noise).
- Driving high-resolution analog-to-digital converters (ADCs), such as the AD7685/AD7686 16-bit PulSAR ADCs).
Q & A
- What is the typical quiescent current of the ADA4841-2?
The typical quiescent current is 1.5 mA per amplifier).
- What is the gain bandwidth of the ADA4841-2?
The gain bandwidth is 80 MHz).
- What is the slew rate of the ADA4841-2?
The slew rate is 12 V/μs).
- What is the input offset voltage of the ADA4841-2?
The input offset voltage is 70 μV).
- What is the common-mode rejection ratio (CMRR) of the ADA4841-2?
The CMRR is 86 - 115 dB).
- What is the operating temperature range of the ADA4841-2?
The operating temperature range is −40°C to +125°C).
- Does the ADA4841-2 have a power-down function?
The ADA4841-1 version has a power-down function, but it is not available in the ADA4841-2).
- What types of applications is the ADA4841-2 suited for?
The ADA4841-2 is suited for portable instrumentation, industrial measurement, medical devices, and driving high-resolution ADCs).
- Is the ADA4841-2 RoHS compliant?
Yes, the ADA4841-2 has RoHS compliant lead finishes).
- What is the typical noise performance of the ADA4841-2?
The ADA4841-2 has a low wideband noise of 2.1 nV/√Hz and low 1/f noise of 7 nV/√Hz @ 10 Hz).
