Overview
The ADA4841-2YRZ-RL, produced by Analog Devices Inc., is a dual, low power, low noise, rail-to-rail output operational amplifier. This device is designed to offer high performance with low power consumption, making it suitable for a variety of applications including portable instrumentation, high channel count industrial measurement, and medical devices. The ADA4841-2 is unity gain stable and features a quiescent current of 1.5 mA maximum, ensuring efficient operation in power-sensitive designs.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 2.7 | 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) | 95 | 115 | dB | |
| Positive Power Supply Rejection Ratio (PSRR) | 95 | 110 | dB | |
| Negative Power Supply Rejection Ratio (PSRR) | 96 | 120 | dB | |
| -3 dB Bandwidth (VO = 0.02 V p-p) | 54 | 80 | MHz | |
| Slew Rate (G = +1, VO = 4 V step, RL = 1 kΩ) | 10 | 12 | V/µs | |
| Settling Time to 0.1% (G = +1, VO = 2 V step) | 175 | ns | ||
| Output Voltage Swing (G > +1, RL = 1 kΩ to GND) | ±4.9 | ±4.955 | V | |
| Output Current Limit (Sourcing, VIN = +VS, RL = 50 Ω to GND) | 30 | mA | ||
| Output Current Limit (Sinking, VIN = -VS, RL = 50 Ω to GND) | 60 | mA | ||
| Capacitive Load Drive (30% overshoot) | 15 | pF |
Key Features
- Low power consumption: 1.1 mA/amp typical quiescent current
- 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
- Unity gain stable
- High -3 dB bandwidth: up to 80 MHz
- Fast slew rate: up to 12 V/µs
- Low settling time: 175 ns to 0.1% and 550 ns to 0.01%
- 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 (e.g., AD7685/AD7686 16-bit PulSAR ADCs)
Q & A
- What is the typical quiescent current of the ADA4841-2YRZ-RL?
The typical quiescent current is 1.5 mA per amplifier.
- What is the input offset voltage of the ADA4841-2YRZ-RL?
The input offset voltage is typically 70 µV.
- What is the common-mode rejection ratio (CMRR) of the ADA4841-2YRZ-RL?
The CMRR is typically 115 dB.
- What is the -3 dB bandwidth of the ADA4841-2YRZ-RL?
The -3 dB bandwidth is up to 80 MHz for a 0.02 V p-p output.
- What is the slew rate of the ADA4841-2YRZ-RL?
The slew rate is up to 12 V/µs.
- What is the settling time to 0.1% for the ADA4841-2YRZ-RL?
The settling time to 0.1% is typically 175 ns.
- What is the output voltage swing of the ADA4841-2YRZ-RL?
The output voltage swing is typically ±4.9 V with a 1 kΩ load to GND.
- What is the maximum output current limit for sourcing and sinking?
The maximum output current limit is 30 mA for sourcing and 60 mA for sinking.
- Is the ADA4841-2YRZ-RL RoHS compliant?
- What is the operating temperature range of the ADA4841-2YRZ-RL?
The operating temperature range is -40°C to +125°C.
