Overview
The ADA4841-1YRZ-RL, produced by Analog Devices Inc., is a unity gain stable, low noise and distortion, rail-to-rail output operational amplifier. This device is designed to offer high performance with low power consumption, making it ideal for various precision and high-resolution applications. The ADA4841-1 features a quiescent current of 1.5 mA maximum and operates over a wide supply range of 2.7 V to 12 V. It is particularly suited for driving high-resolution ADCs, such as the AD7685/AD7686 16-bit PulSAR ADCs, and is used in applications like portable instrumentation, high channel count industrial measurement, and medical devices.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2.7 | - | 12 | V |
| Quiescent Current/Amplifier | 1.2 | 1.5 | - | mA |
| Input Offset Voltage | - | 70 | - | µV |
| Input Bias Current | - | 60 | - | nA |
| Slew Rate | 10 | 12 | - | V/µs |
| -3 dB Bandwidth | 54 | 80 | - | MHz |
| Output Voltage Swing | - | ±4.9 | - | V |
| Output Current Limit (Sourcing) | - | 30 | - | mA |
| Output Current Limit (Sinking) | - | 60 | - | mA |
| Operating Temperature Range | -40 | - | 125 | °C |
| Common-Mode Rejection Ratio (CMRR) | 86 | - | 115 | dB |
| Power Supply Rejection Ratio (PSRR) | 95 | - | 120 | dB |
Key Features
- Low power consumption: 1.5 mA maximum quiescent current per amplifier.
- Low wideband noise: 2.1 nV/√Hz and 1.4 pA/√Hz.
- Low 1/f noise: 7 nV/√Hz @ 10 Hz and 13 pA/√Hz @ 10 Hz.
- Low distortion: -105 dBc @ 100 kHz.
- Rail-to-rail output stage for maximum linear signal range.
- High slew rate: 10 V/µs to 12 V/µs.
- High bandwidth: 54 MHz to 80 MHz.
- Power-down function (ADA4841-1) to reduce power consumption further.
- RoHS compliant lead finishes.
- Industrial temperature range: -40°C to +125°C.
Applications
- Portable instrumentation.
- High channel count industrial measurement.
- Medical applications.
- Driving high-resolution ADCs such as the AD7685/AD7686 16-bit PulSAR ADCs.
Q & A
- What is the maximum quiescent current of the ADA4841-1YRZ-RL?
The maximum quiescent current is 1.5 mA per amplifier.
- What is the typical input offset voltage of the ADA4841-1YRZ-RL?
The typical input offset voltage is 70 µV.
- What is the slew rate of the ADA4841-1YRZ-RL?
The slew rate is 10 V/µs to 12 V/µs.
- What is the -3 dB bandwidth of the ADA4841-1YRZ-RL?
The -3 dB bandwidth is 54 MHz to 80 MHz.
- Does the ADA4841-1YRZ-RL have a power-down function?
Yes, the ADA4841-1 has a power-down function to reduce power consumption further.
- What is the operating temperature range of the ADA4841-1YRZ-RL?
The operating temperature range is -40°C to +125°C.
- Is the ADA4841-1YRZ-RL RoHS compliant?
Yes, the ADA4841-1YRZ-RL is RoHS compliant.
- What are the typical applications of the ADA4841-1YRZ-RL?
The typical applications include portable instrumentation, high channel count industrial measurement, medical applications, and driving high-resolution ADCs.
- What is the output voltage swing of the ADA4841-1YRZ-RL?
The output voltage swing is typically ±4.9 V.
- What is the common-mode rejection ratio (CMRR) of the ADA4841-1YRZ-RL?
The CMRR is typically 86 dB to 115 dB.
