Overview
The ADA4897-2ARMZ-RL, produced by Analog Devices Inc., is a unity-gain stable, low noise, rail-to-rail output, high speed voltage feedback amplifier. This amplifier is part of the ADA4897 series and is known for its high performance and versatility. It features a quiescent current of 3 mA, making it suitable for low power applications. The ADA4897-2 is designed using Analog Devices' proprietary next-generation SiGe bipolar process, which enables high speed and low noise characteristics.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Bandwidth (G = +1) | 230 | MHz | ||
| Slew Rate | 120 | V/μs | ||
| Settling Time to 0.1% | 45 | ns | ||
| Input Offset Voltage | 0.5 | mV | ||
| Wideband Noise | 1 | nV/√Hz | ||
| 1/f Noise at 10 Hz | 2.4 | nV/√Hz | ||
| Quiescent Current per Amplifier | 2.5 | 2.7 | 2.9 | mA |
| Supply Voltage Range | 3 | 10 | V | |
| Operating Temperature Range | -40 | +125 | °C |
Key Features
- Low wideband noise: 1 nV/√Hz and low 1/f noise: 2.4 nV/√Hz at 10 Hz.
- High speed: 230 MHz bandwidth and 120 V/μs slew rate.
- Low distortion: −115 dBc at 100 kHz, VOUT = 2 V p-p.
- Low power: Quiescent current of 3 mA per amplifier.
- Rail-to-rail output and wide supply voltage range of 3 V to 10 V.
- Disable feature available (ADA4897-1 and ADA4897-2).
- High precision with low input offset voltage: 0.5 mV maximum.
- Extended industrial temperature range: −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 bandwidth of the ADA4897-2?
The typical bandwidth of the ADA4897-2 is 230 MHz at a gain of +1.
- What is the slew rate of the ADA4897-2?
The slew rate of the ADA4897-2 is 120 V/μs.
- What is the settling time to 0.1% for the ADA4897-2?
The settling time to 0.1% for the ADA4897-2 is 45 ns.
- What is the input offset voltage of the ADA4897-2?
The input offset voltage of the ADA4897-2 is 0.5 mV maximum).
- What is the wideband noise of the ADA4897-2?
The wideband noise of the ADA4897-2 is 1 nV/√Hz).
- What is the 1/f noise at 10 Hz for the ADA4897-2?
The 1/f noise at 10 Hz for the ADA4897-2 is 2.4 nV/√Hz).
- What is the quiescent current per amplifier for the ADA4897-2?
The quiescent current per amplifier for the ADA4897-2 is typically 2.7 mA).
- What is the supply voltage range for the ADA4897-2?
The supply voltage range for the ADA4897-2 is from 3 V to 10 V).
- What are the typical applications of the ADA4897-2?
The ADA4897-2 is typically used in low noise preamplifiers, ultrasound amplifiers, PLL loop filters, high performance ADC drivers, and DAC buffers).
- What is the operating temperature range for the ADA4897-2?
The operating temperature range for the ADA4897-2 is from −40°C to +125°C).
