Overview
The ADA4897-1ARJZ-R2 is a high-performance, low noise, rail-to-rail output, high speed voltage feedback operational amplifier produced by Analog Devices Inc. This amplifier is part of the ADA4897 series and is known for its unity-gain stability, low power consumption, and high dynamic range. It is designed using Analog Devices' proprietary next-generation SiGe bipolar process, which enables its high-speed and low-noise characteristics.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage (Vos) | 28 | μV | ||
| Input Bias Current | 4 | μA | ||
| Quiescent Current per Amplifier | 2.5 | 2.7 | 2.9 | mA |
| Supply Voltage Range | 3 | 10 | V | |
| Gain Bandwidth Product (GBP) | 90 | MHz | ||
| Slew Rate (SR) | 120 | V/μs | ||
| Settling Time to 0.1% | 45 | ns | ||
| Power Supply Rejection Ratio (PSRR) | -96 | -121 | -125 | dB |
| Common Mode Rejection Ratio (CMRR) | -120 | dB | ||
| Operating Temperature Range | -40 | +125 | °C | |
| Package Type | SOT-23-6 |
Key Features
- Unity-gain stable, low noise, and rail-to-rail output.
- High speed with a -3 dB bandwidth of 230 MHz (G = +1) and a slew rate of 120 V/μs.
- Low input offset voltage of 0.5 mV maximum and input bias current of 4 μA.
- Wide supply voltage range from 3 V to 10 V.
- Low power consumption with a quiescent current of 3 mA per amplifier.
- Disable feature available on certain models (ADA4897-1/ADA4897-2).
- High dynamic range and precision, making it suitable for high-performance applications.
- Operates over an extended industrial temperature range of -40°C to +125°C.
Applications
- Low noise preamplifiers.
- Ultrasound amplifiers.
- PLL loop filters.
- High-performance ADC drivers.
- DAC buffers.
Q & A
- What is the typical input offset voltage of the ADA4897-1ARJZ-R2?
The typical input offset voltage is 28 μV.
- What is the slew rate of the ADA4897-1ARJZ-R2?
The slew rate is 120 V/μs.
- What is the gain bandwidth product (GBP) of the ADA4897-1ARJZ-R2?
The GBP is 90 MHz.
- What is the operating temperature range of the ADA4897-1ARJZ-R2?
The operating temperature range is from -40°C to +125°C.
- What is the typical quiescent current per amplifier for the ADA4897-1ARJZ-R2?
The typical quiescent current per amplifier is 2.7 mA.
- What is the supply voltage range for the ADA4897-1ARJZ-R2?
The supply voltage range is from 3 V to 10 V.
- Does the ADA4897-1ARJZ-R2 have a disable feature?
Yes, certain models of the ADA4897 series have a disable feature, but it is not specified for the ADA4897-1ARJZ-R2 specifically.
- What is the common mode rejection ratio (CMRR) of the ADA4897-1ARJZ-R2?
The CMRR is -120 dB.
- What is the power supply rejection ratio (PSRR) of the ADA4897-1ARJZ-R2?
The PSRR is between -96 dB and -125 dB.
- What are some typical applications of the ADA4897-1ARJZ-R2?
Typical applications include low noise preamplifiers, ultrasound amplifiers, PLL loop filters, high-performance ADC drivers, and DAC buffers.
