Overview
The ADA4895-1ARZ-RL, produced by Analog Devices Inc., is a high-speed voltage feedback operational amplifier. This single-channel amplifier is part of the ADA4895 series, known for its low noise, rail-to-rail output, and high gain stability. It is designed using Analog Devices' proprietary next-generation SiGe bipolar process, which enables high performance and precision. The ADA4895-1 is suitable for a variety of applications requiring low noise, high speed, and high gain.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Bandwidth (G = +10) | - | 236 | - | MHz |
| Slew Rate | - | 943 | - | V/μs |
| Settling Time to 0.1% | - | 22 | - | ns |
| Input Noise Voltage | - | 1 | - | nV/√Hz |
| Input Noise Current | - | 1.6 | - | pA/√Hz |
| Input Offset Voltage | - | 350 | - | μV |
| Quiescent Current per Amplifier | 2.6 | 2.8 | 3 | mA |
| Supply Voltage Range | 3 | - | 10 | V |
| Output Voltage Swing (RL = 1 kΩ) | 2.35 | 2.48 | - | V |
| Short-Circuit Current | 98 | - | 111 | mA |
Key Features
- Low wideband noise: 1 nV/√Hz and low 1/f noise: 2 nV/√Hz at 10 Hz
- High speed: 236 MHz bandwidth at a gain of +10 and 943 V/μs slew rate
- Rail-to-rail output and wide supply voltage range (3 V to 10 V)
- Low distortion: SFDR of −96 dBc at 100 kHz, VOUT = 2 V p-p
- Low power consumption: 3 mA per amplifier
- Disable feature for power management
- High temperature range: −40°C to +125°C
Applications
- Low noise preamplifiers
- Ultrasound amplifiers
- PLL loop filters
- High performance analog-to-digital converter (ADC) drivers
- Digital-to-analog converter (DAC) buffers
Q & A
- What is the bandwidth of the ADA4895-1 at a gain of +10? The bandwidth is 236 MHz at a gain of +10.
- What is the slew rate of the ADA4895-1? The slew rate is 943 V/μs.
- How long does it take for the ADA4895-1 to settle to 0.1%? It settles to 0.1% in 22 ns.
- What is the input noise voltage of the ADA4895-1? The input noise voltage is 1 nV/√Hz.
- What is the supply voltage range of the ADA4895-1? The supply voltage range is from 3 V to 10 V.
- What is the quiescent current per amplifier for the ADA4895-1? The quiescent current per amplifier is typically 2.8 mA.
- Does the ADA4895-1 have a disable feature? Yes, it has a disable feature for power management.
- What are the typical applications of the ADA4895-1? Typical applications include low noise preamplifiers, ultrasound amplifiers, PLL loop filters, and drivers for high performance ADCs and DACs.
- What is the temperature range for the ADA4895-1? The temperature range is from −40°C to +125°C.
- What packages are available for the ADA4895-1? The ADA4895-1 is available in 8-lead SOIC and 6-lead SOT-23 packages.
