Overview
The ADA4897-1ARJZ-R7 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 ADA4896-2/ADA4897-1/ADA4897-2 family and is known for its unity-gain stability, low quiescent current, and high bandwidth. It is designed to meet the demands of various high-speed and low-noise applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| -3 dB Bandwidth (G = +1) | - | 230 | - | MHz |
| Slew Rate | - | 120 | - | V/μs |
| Settling Time to 0.1% | - | 45 | - | ns |
| Input Offset Voltage | - | 0.5 | - | mV |
| Quiescent Current per Amplifier | 2.5 | 2.7 | 2.9 | mA |
| Power Supply Range | 3 | - | 10 | V |
| Common-Mode Input Voltage | -VS - 0.7 V | - | +VS + 0.7 V | - |
| Differential Input Voltage | - | - | ±0.7 V | - |
| Operating Temperature Range | -40°C | - | 125°C | - |
Key Features
- Unity-gain stable, low noise, and rail-to-rail output.
- High speed with a -3 dB bandwidth of 230 MHz at a gain of +1.
- Low quiescent current of 3 mA per amplifier.
- High slew rate of 120 V/μs and fast settling time to 0.1% in 45 ns.
- Wide supply range from 3 V to 10 V.
- Disable feature available (ADA4897-1 and ADA4897-2 models).
- High power supply rejection ratio (PSRR) and common-mode rejection ratio (CMRR).
Applications
- Low noise preamplifiers.
- Ultrasound amplifiers.
- PLL loop filters.
- High performance ADC drivers.
- DAC buffers.
Q & A
- What is the typical -3 dB bandwidth of the ADA4897-1ARJZ-R7?
The typical -3 dB bandwidth is 230 MHz at a gain of +1. - What is the slew rate of the ADA4897-1ARJZ-R7?
The slew rate is 120 V/μs. - What is the settling time to 0.1% for the ADA4897-1ARJZ-R7?
The settling time to 0.1% is 45 ns. - What is the input offset voltage of the ADA4897-1ARJZ-R7?
The input offset voltage is 0.5 mV maximum. - What is the quiescent current per amplifier for the ADA4897-1ARJZ-R7?
The quiescent current per amplifier is typically 2.7 mA. - What is the power supply range for the ADA4897-1ARJZ-R7?
The power supply range is from 3 V to 10 V. - Does the ADA4897-1ARJZ-R7 have a disable feature?
Yes, the ADA4897-1 and ADA4897-2 models have a disable feature. - What are some common applications for the ADA4897-1ARJZ-R7?
Common applications include low noise preamplifiers, ultrasound amplifiers, PLL loop filters, high performance ADC drivers, and DAC buffers. - What is the operating temperature range for the ADA4897-1ARJZ-R7?
The operating temperature range is from -40°C to 125°C. - What is the common-mode input voltage range for the ADA4897-1ARJZ-R7?
The common-mode input voltage range is from -VS - 0.7 V to +VS + 0.7 V.
