Overview
The ADA4897-2ARMZ-R7, produced by Analog Devices Inc., is a high-performance, low noise, rail-to-rail output, high speed voltage feedback operational amplifier. This device is part of the ADA4897 series and is known for its unity-gain stability, low quiescent current, and high dynamic range. It is fabricated using Analog Devices' proprietary next-generation SiGe bipolar process, which enables its high-speed and low-noise characteristics. The ADA4897-2 is suitable for various applications requiring precision, low power consumption, and high-speed operation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3 | 10 | V | |
| Quiescent Current per Amplifier | 2.5 | 3 | 2.9 | mA |
| Input Offset Voltage | 0.5 | mV | ||
| Bandwidth (G = +1) | 230 | MHz | ||
| Slew Rate | 120 | V/μs | ||
| Settling Time to 0.1% | 45 | ns | ||
| Power Supply Rejection Ratio (PSRR) | -96 | -121 | dB | |
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | 10-lead MSOP |
Key Features
- Unity-gain stable, low noise, and rail-to-rail output.
- High speed with a bandwidth of 230 MHz and a slew rate of 120 V/μs.
- Low quiescent current of 3 mA per amplifier.
- Wide supply voltage range from 3 V to 10 V.
- Disable feature available (ADA4897-1 and ADA4897-2 models).
- High dynamic range with a spurious-free dynamic range of −80 dBc at 2 MHz.
- 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 quiescent current of the ADA4897-2? The typical quiescent current is 3 mA per amplifier.
- What is the bandwidth of the ADA4897-2 at a gain of +1? The bandwidth is 230 MHz.
- What is the slew rate of the ADA4897-2? The slew rate is 120 V/μs.
- What is the settling time to 0.1% for the ADA4897-2? The settling time is 45 ns.
- What is the operating temperature range of the ADA4897-2? The operating temperature range is from −40°C to +125°C.
- Does the ADA4897-2 have a disable feature? Yes, the ADA4897-2 has a disable feature.
- What is the typical input offset voltage of the ADA4897-2? The typical input offset voltage is 0.5 mV.
- What is the power supply rejection ratio (PSRR) of the ADA4897-2? The PSRR is typically −121 dB.
- In what package types is the ADA4897-2 available? The ADA4897-2 is available in a 10-lead MSOP package.
- What are some common applications of the ADA4897-2? Common applications include low noise preamplifiers, ultrasound amplifiers, PLL loop filters, high performance ADC drivers, and DAC buffers.
