Overview
The ADA4841-2YRZ-R7, produced by Analog Devices Inc., is a low power, low noise, and low distortion operational amplifier. It is unity gain stable and features a rail-to-rail output, making it suitable for a variety of applications requiring high precision and low power consumption. The amplifier has a quiescent current of 1.5 mA maximum and operates over an industrial temperature range of −40°C to +125°C. It is particularly designed to support emerging 16-bit to 18-bit analog-to-digital converters (ADCs) and is ideal for use in portable instrumentation, high channel count industrial measurement, and medical applications.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V |
| Quiescent Current per Amplifier | 1.1 mA to 1.5 mA (enabled), 25 µA to 90 µA (power down) |
| Input Offset Voltage | 70 µV |
| Input Bias Current | 60 nA |
| Common-Mode Rejection Ratio (CMRR) | 86 dB to 115 dB |
| Output Voltage Swing | ±4.9 V to ±4.955 V (with ±5 V supply) |
| 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 |
| Power Down Voltage | Enabled > 3.6 V, Power down < 3.2 V |
Key Features
- Unity gain stable, low noise, and low distortion
- Rail-to-rail output
- Low quiescent current: 1.1 mA to 1.5 mA
- High common-mode rejection ratio (CMRR): 86 dB to 115 dB
- High power supply rejection ratio (PSRR): 95 dB to 120 dB
- Power down feature with low current consumption
- RoHS compliant lead finishes
- Ideal for driving 16-bit to 18-bit ADCs, such as AD7685/AD7686
Applications
- Portable instrumentation
- High channel count industrial measurement
- Medical applications
- Driving high-resolution ADCs like AD7685/AD7686
Q & A
- What is the operating temperature range of the ADA4841-2YRZ-R7?
The operating temperature range is −40°C to +125°C.
- What is the quiescent current of the ADA4841-2YRZ-R7 when enabled?
The quiescent current is 1.1 mA to 1.5 mA when enabled.
- What is the common-mode rejection ratio (CMRR) of the ADA4841-2YRZ-R7?
The CMRR is 86 dB to 115 dB.
- What is the output voltage swing of the ADA4841-2YRZ-R7 with a ±5 V supply?
The output voltage swing is ±4.9 V to ±4.955 V.
- Can the ADA4841-2YRZ-R7 drive capacitive loads?
- What are the typical applications of the ADA4841-2YRZ-R7?
Typical applications include portable instrumentation, high channel count industrial measurement, and medical applications.
- Is the ADA4841-2YRZ-R7 RoHS compliant?
- How does the power down feature work on the ADA4841-2YRZ-R7?
The power down feature is enabled when the power down voltage is greater than 3.6 V and disabled when it is less than 3.2 V.
- What is the input bias current of the ADA4841-2YRZ-R7?
The input bias current is 60 nA.
- Can the ADA4841-2YRZ-R7 be used to drive high-resolution ADCs?
