Overview
The ADA4896-2ARMZ is a high-performance, low-noise, rail-to-rail output voltage feedback amplifier produced by Analog Devices Inc. This amplifier is part of the ADA4896-2 series and is known for its unity-gain stability, high speed, and low power consumption. It features a quiescent current of 3 mA per amplifier and is designed to operate over a wide supply voltage range of 3 V to 10 V. The ADA4896-2ARMZ is ideal for applications requiring high dynamic range, precision, and low noise, making it suitable for various industrial and commercial uses.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | |
| Amplifier Type | Voltage Feedback | |
| Supply Voltage Range | 3 V to 10 V | |
| Quiescent Current | 3 mA (per amplifier) | |
| Input Offset Voltage | 28 µV | |
| Slew Rate | 120 V/µs | |
| Gain Bandwidth Product (GBP) | 90 MHz | |
| -3 dB Bandwidth | 230 MHz (G = +1) | |
| Settling Time to 0.1% | 45 ns | |
| Input Noise Density | 1 nV/√Hz | |
| Common Mode Rejection Ratio (CMRR) | -120 dB | |
| Power Supply Rejection Ratio (PSRR) | -125 dB | |
| Operating Temperature Range | -40°C to +125°C | |
| Package | 8-lead MSOP |
Key Features
- High Speed and Low Noise: The ADA4896-2ARMZ offers a high -3 dB bandwidth of 230 MHz and a slew rate of 120 V/µs, making it suitable for high-speed applications. It also features low noise with an input noise density of 1 nV/√Hz at 10 Hz.
- Rail-to-Rail Output: The amplifier provides rail-to-rail output, ensuring that the output signal can swing from the negative to the positive supply rail.
- Low Power Consumption: With a quiescent current of 3 mA per amplifier, this device is energy-efficient and suitable for battery-powered devices.
- Wide Supply Voltage Range: The ADA4896-2ARMZ can operate over a supply voltage range of 3 V to 10 V, making it versatile for various system designs.
- High Precision: The amplifier has a low input offset voltage of 28 µV and a high common mode rejection ratio (CMRR) of -120 dB, ensuring high precision in signal amplification.
Applications
- Low Noise Preamplifiers: Ideal for applications requiring low noise and high precision, such as medical devices and scientific instruments.
- Ultrasound Amplifiers: The high speed and low noise characteristics make it suitable for ultrasound imaging systems.
- PLL Loop Filters: Can be used in phase-locked loop (PLL) circuits due to its high bandwidth and low noise.
- High Performance ADC Drivers: Suitable for driving high-performance analog-to-digital converters (ADCs) in various industrial and commercial applications.
- DAC Buffers: Can be used as buffers for digital-to-analog converters (DACs) to improve signal integrity.
Q & A
- What is the typical quiescent current of the ADA4896-2ARMZ?
The typical quiescent current of the ADA4896-2ARMZ is 3 mA per amplifier.
- What is the -3 dB bandwidth of the ADA4896-2ARMZ at a gain of +1?
The -3 dB bandwidth of the ADA4896-2ARMZ at a gain of +1 is 230 MHz.
- What is the slew rate of the ADA4896-2ARMZ?
The slew rate of the ADA4896-2ARMZ is 120 V/µs.
- What is the input noise density of the ADA4896-2ARMZ?
The input noise density of the ADA4896-2ARMZ is 1 nV/√Hz at 10 Hz.
- What is the operating temperature range of the ADA4896-2ARMZ?
The operating temperature range of the ADA4896-2ARMZ is -40°C to +125°C.
- What package types are available for the ADA4896-2ARMZ?
The ADA4896-2ARMZ is available in an 8-lead MSOP package.
- What are some typical applications of the ADA4896-2ARMZ?
The ADA4896-2ARMZ is typically used in low noise preamplifiers, ultrasound amplifiers, PLL loop filters, high performance ADC drivers, and DAC buffers.
- What is the common mode rejection ratio (CMRR) of the ADA4896-2ARMZ?
The CMRR of the ADA4896-2ARMZ is -120 dB.
- What is the power supply rejection ratio (PSRR) of the ADA4896-2ARMZ?
The PSRR of the ADA4896-2ARMZ is -125 dB.
- Does the ADA4896-2ARMZ have a disable feature?
No, the ADA4896-2ARMZ does not have a disable feature. This feature is available in the ADA4897-1 and ADA4897-2 models.
