Overview
The ADA4841-1YRZ-R7, produced by Analog Devices Inc., is a low noise and distortion, rail-to-rail output operational amplifier. It is designed to be unity gain stable and features a quiescent current of 1.5 mA maximum. This amplifier is particularly suited for high-resolution and precision applications, including support for emerging 16-bit to 18-bit ADCs. The ADA4841-1YRZ-R7 is ideal for use in portable instrumentation, high channel count industrial measurement, and medical applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC-8 |
| Supply Voltage Range | 2.7 V to 12 V |
| Quiescent Current | 1.2 mA to 1.5 mA (enabled), 40 µA to 90 µA (power down) |
| Input Offset Voltage | 70 µV |
| Input Bias Current | 60 nA |
| Output Voltage Swing | ±4.9 V to ±4.955 V |
| Output Current Limit | 30 mA (sourcing), 60 mA (sinking) |
| Capacitive Load Drive | 15 pF with 30% overshoot |
| Common-Mode Rejection Ratio (CMRR) | 95 dB to 115 dB |
| Power Supply Rejection Ratio (PSRR) | 95 dB to 120 dB |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- Low noise and distortion, making it suitable for high-resolution applications.
- Rail-to-rail output stage for maximum linear signal range on low voltage supplies.
- Unity gain stable with high gain bandwidth for preserving linearity up to 100 kHz.
- Power-down function to reduce power consumption further.
- High CMRR, PSRR, and open-loop gain (typically above 100 dB) for precision performance.
- RoHS compliant lead finishes.
Applications
- Portable instrumentation.
- High channel count industrial measurement.
- Medical applications.
- Driving 16-bit to 18-bit ADCs, particularly the AD7685/AD7686 16-bit PulSAR ADCs.
Q & A
- What is the typical quiescent current of the ADA4841-1YRZ-R7?
The typical quiescent current is 1.5 mA when enabled and 40 µA to 90 µA when in power-down mode.
- What is the operating temperature range of the ADA4841-1YRZ-R7?
The operating temperature range is −40°C to +125°C.
- What is the output voltage swing of the ADA4841-1YRZ-R7?
The output voltage swing is ±4.9 V to ±4.955 V.
- Does the ADA4841-1YRZ-R7 have a power-down function?
Yes, it has a power-down function to reduce power consumption further.
- What are the typical applications of the ADA4841-1YRZ-R7?
Typical applications include portable instrumentation, high channel count industrial measurement, medical applications, and driving 16-bit to 18-bit ADCs.
- What is the package type of the ADA4841-1YRZ-R7?
The package type is SOIC-8.
- What is the common-mode rejection ratio (CMRR) of the ADA4841-1YRZ-R7?
The CMRR is typically between 95 dB and 115 dB.
- What is the power supply rejection ratio (PSRR) of the ADA4841-1YRZ-R7?
The PSRR is typically between 95 dB and 120 dB.
- Can the ADA4841-1YRZ-R7 drive capacitive loads?
Yes, it can drive capacitive loads up to 15 pF with 30% overshoot.
- Is the ADA4841-1YRZ-R7 RoHS compliant?
Yes, the packages feature RoHS compliant lead finishes.
