Overview
The ADA4661-2ARMZ-R7 is a dual-channel, low-noise, precision operational amplifier designed by Analog Devices Inc. This amplifier is optimized for low power consumption, high bandwidth, and a wide operating supply voltage range, making it versatile for various signal conditioning and amplification applications.
It features rail-to-rail input and output capabilities, which enhance its performance in a wide range of operating conditions. The ADA4661-2ARMZ-R7 is particularly noted for its excellent power supply rejection ratio (PSRR), common-mode rejection ratio (CMRR), and low offset voltage, achieved through Analog Devices' patented DigiTrim® trimming technique.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | - |
| GBP - Gain Bandwidth Product | 4 MHz | - |
| SR - Slew Rate | 2 V/μs | - |
| Vos - Input Offset Voltage | 30 μV (typ), 150 μV (max) | - |
| Current - Input Bias | 0.5 pA (typ), 900 pA (max) | - |
| Max Supply Voltage | 18 V | - |
| Supply Voltage - Min | 3 V, 1.5 V (dual supply) | - |
| Current @ Pmpp | 630 μA (typ), 725 μA (max) | - |
| Load Current | 40 mA | - |
| CMRR - Common Mode Rejection Ratio | 135 dB | - |
| PSRR - Power Supply Rejection Ratio | 145 dB | - |
| Input Voltage Noise Density | 18 nV/√Hz | - |
| Mounting Style | SMD/SMT | - |
| Minimum Operating Temperature | -40°C | - |
| Maximum Operating Temperature | +125°C | - |
| Package | 8-lead MSOP, 8-lead LFCSP | - |
Key Features
- Rail-to-Rail Input and Output: Enhances the amplifier's performance by allowing it to operate effectively across the entire supply voltage range.
- Low Noise and Offset Voltage: Achieved through Analog Devices' patented DigiTrim® trimming technique, ensuring high precision and low noise in signal amplification.
- High Bandwidth and Slew Rate: Supports high-speed applications with a bandwidth of 4 MHz and a slew rate of 2 V/μs.
- Wide Operating Supply Voltage Range: Compatible with single-ended supplies of 3.3 V, 5 V, 10 V, 12 V, and 15 V, as well as dual supplies of ±2.5 V, ±3.3 V, and ±5 V.
- Excellent PSRR and CMRR: High power supply rejection ratio (PSRR) and common-mode rejection ratio (CMRR) ensure robust performance against power supply and common-mode noise.
- Low Power Consumption: Operates with a supply current of 630 μA per amplifier, making it suitable for power-sensitive applications.
Applications
- Signal Conditioning: Ideal for amplifying and conditioning signals in various industrial, medical, and commercial applications.
- Audio and Video Systems: Suitable for audio and video signal processing due to its low noise and high fidelity characteristics.
- Medical Devices: Used in medical equipment for precise signal amplification and conditioning.
- Industrial Automation: Applied in industrial control systems, sensors, and data acquisition systems.
- Test and Measurement Equipment: Utilized in test and measurement instruments requiring high precision and low noise amplification.
Q & A
- What is the number of channels in the ADA4661-2ARMZ-R7?
The ADA4661-2ARMZ-R7 is a dual-channel operational amplifier.
- What is the gain bandwidth product (GBP) of the ADA4661-2ARMZ-R7?
The GBP is 4 MHz.
- What is the slew rate of the ADA4661-2ARMZ-R7?
The slew rate is 2 V/μs.
- What is the typical input offset voltage of the ADA4661-2ARMZ-R7?
The typical input offset voltage is 30 μV.
- What is the maximum supply voltage for the ADA4661-2ARMZ-R7?
The maximum supply voltage is 18 V.
- What are the package options for the ADA4661-2ARMZ-R7?
The amplifier is available in 8-lead MSOP and 8-lead LFCSP packages.
- What is the operating temperature range for the ADA4661-2ARMZ-R7?
The operating temperature range is from -40°C to +125°C.
- What is the power supply rejection ratio (PSRR) of the ADA4661-2ARMZ-R7?
The PSRR is 145 dB.
- What is the common-mode rejection ratio (CMRR) of the ADA4661-2ARMZ-R7?
The CMRR is 135 dB.
- What are some typical applications of the ADA4661-2ARMZ-R7?
Typical applications include signal conditioning, audio and video systems, medical devices, industrial automation, and test and measurement equipment.
