Overview
The ADA4897-2ARMZ is a high-performance, unity-gain stable, low noise, rail-to-rail output, high speed voltage feedback operational amplifier produced by Analog Devices Inc. This amplifier is designed to offer exceptional performance in a variety of applications, including low noise preamplifiers, ultrasound amplifiers, PLL loop filters, and drivers for high-performance ADCs and DACs. It features a quiescent current of 3 mA and operates over a wide supply voltage range of 3 V to 10 V, making it versatile for different system requirements.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 3 V to 10 V |
| Quiescent Current | 3 mA per amplifier |
| Noise Density | 1 nV/√Hz |
| 1/f Noise at 10 Hz | 2.4 nV/√Hz |
| Bandwidth (G = +1) | 230 MHz |
| Slew Rate | 120 V/μs |
| Settling Time to 0.1% | 45 ns |
| Input Offset Voltage | 0.5 mV maximum |
| Common-Mode Rejection Ratio (CMRR) | 120 dB typical |
| Operating Temperature Range | −40°C to +125°C |
| Package | MSOP-10 |
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 power consumption: 3 mA per amplifier
- Rail-to-rail output
- Low input offset voltage: 0.5 mV maximum
- High CMRR: 120 dB typical
- Disable feature (for ADA4897-1 and ADA4897-2 models)
- Wide supply voltage range: 3 V to 10 V
- Extended industrial temperature range: −40°C to +125°C
Applications
- Low noise preamplifiers
- Ultrasound amplifiers
- PLL loop filters
- High performance ADC and DAC drivers
- Data acquisition systems in computing and data storage
- Filters, modulators/demodulators, and line drivers in telecommunications
- Medical instrumentation and analog front ends in healthcare
- Sensor interfaces, battery-powered devices, and portable IoT gadgets
Q & A
- What is the noise density of the ADA4897-2ARMZ?
The noise density of the ADA4897-2ARMZ is 1 nV/√Hz.
- What is the bandwidth of the ADA4897-2ARMZ at a gain of +1?
The bandwidth of the ADA4897-2ARMZ at a gain of +1 is 230 MHz.
- What is the slew rate of the ADA4897-2ARMZ?
The slew rate of the ADA4897-2ARMZ is 120 V/μs.
- What is the quiescent current of the ADA4897-2ARMZ?
The quiescent current of the ADA4897-2ARMZ is 3 mA per amplifier.
- What is the input offset voltage of the ADA4897-2ARMZ?
The input offset voltage of the ADA4897-2ARMZ is 0.5 mV maximum.
- What is the operating temperature range of the ADA4897-2ARMZ?
The operating temperature range of the ADA4897-2ARMZ is −40°C to +125°C.
- What package types are available for the ADA4897-2ARMZ?
The ADA4897-2ARMZ is available in an MSOP-10 package.
- Does the ADA4897-2ARMZ have a disable feature?
Yes, the ADA4897-2ARMZ has a disable feature.
- What are some common applications of the ADA4897-2ARMZ?
Common applications include low noise preamplifiers, ultrasound amplifiers, PLL loop filters, and drivers for high-performance ADCs and DACs.
- Is the ADA4897-2ARMZ ROHS compliant?
Yes, the ADA4897-2ARMZ is ROHS compliant.
