Overview
The ADA4897-1ARZ, produced by Analog Devices Inc., is a high-performance, low noise, rail-to-rail output, high speed voltage feedback amplifier. This amplifier is part of the ADA4897 series and is known for its low wideband noise of 1 nV/√Hz and low 1/f noise of 2.4 nV/√Hz at 10 Hz. It features a quiescent current of 3 mA per amplifier, making it suitable for low power applications. The ADA4897-1ARZ is unity-gain stable and offers high speed performance with a -3 dB bandwidth of 230 MHz and a slew rate of 120 V/μs. It also boasts a settling time to 0.1% in just 45 ns and a wide supply voltage range of 3 V to 10 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Wideband Noise | 1 | nV/√Hz |
| 1/f Noise at 10 Hz | 2.4 | nV/√Hz |
| Distortion | -115 | dBc at 100 kHz, VOUT = 2 V p-p |
| Quiescent Current per Amplifier | 3 | mA |
| Input Offset Voltage | 0.5 | mV (maximum) |
| -3 dB Bandwidth | 230 | MHz (G = +1) |
| Slew Rate | 120 | V/μs |
| Settling Time to 0.1% | 45 | ns |
| Supply Voltage Range | 3 to 10 | V |
| Operating Temperature Range | -40 to +125 | °C |
| Package Type | 8-SOIC | |
| RoHS Status | Compliant |
Key Features
- Low wideband noise of 1 nV/√Hz and low 1/f noise of 2.4 nV/√Hz at 10 Hz
- High speed performance with a -3 dB bandwidth of 230 MHz and a slew rate of 120 V/μs
- Settling time to 0.1% in 45 ns
- Rail-to-rail output
- Wide supply voltage range of 3 V to 10 V
- Low power consumption with a quiescent current of 3 mA per amplifier
- Low input offset voltage of 0.5 mV maximum
- Disable feature (for ADA4897-1 and ADA4897-2 models)
- 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 wideband noise of the ADA4897-1ARZ?
The typical wideband noise of the ADA4897-1ARZ is 1 nV/√Hz.
- What is the slew rate of the ADA4897-1ARZ?
The slew rate of the ADA4897-1ARZ is 120 V/μs.
- What is the settling time to 0.1% for the ADA4897-1ARZ?
The settling time to 0.1% for the ADA4897-1ARZ is 45 ns.
- What is the supply voltage range for the ADA4897-1ARZ?
The supply voltage range for the ADA4897-1ARZ is 3 V to 10 V.
- What is the operating temperature range for the ADA4897-1ARZ?
The operating temperature range for the ADA4897-1ARZ is -40°C to +125°C.
- What package types are available for the ADA4897-1ARZ?
The ADA4897-1ARZ is available in an 8-SOIC package.
- Is the ADA4897-1ARZ RoHS compliant?
Yes, the ADA4897-1ARZ is RoHS compliant.
- What are some typical applications for the ADA4897-1ARZ?
Typical applications include low noise preamplifiers, ultrasound amplifiers, PLL loop filters, high performance ADC drivers, and DAC buffers.
- Does the ADA4897-1ARZ have a disable feature?
Yes, the ADA4897-1ARZ has a disable feature.
- What is the input offset voltage of the ADA4897-1ARZ?
The input offset voltage of the ADA4897-1ARZ is 0.5 mV maximum.
