Overview
The ADA4891-1ARZ is a high-speed, low-cost CMOS operational amplifier from Analog Devices Inc. This single-channel amplifier is part of the ADA4891 family, which includes dual, triple, and quad versions. It is designed for high performance and versatility, making it suitable for a wide range of applications. The ADA4891-1ARZ features true single-supply capability, with an input voltage range that extends 300 mV below the negative rail, and it operates over a wide supply range of 2.7 V to 5.5 V.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| 3 dB Bandwidth (G = +1) | - | 220 | - | MHz |
| Slew Rate | - | 170 | - | V/μs |
| Settling Time to 0.1% | - | 28 | - | ns |
| Supply Voltage Range | 2.7 | - | 5.5 | V |
| Input Offset Voltage | -2.5 | - | 10 | mV |
| Input Bias Current | -50 | - | 50 | pA |
| Output Current | - | - | 125 | mA |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | 8-lead SOIC, 5-lead SOT-23 | - | - |
Key Features
- High speed and fast settling: 220 MHz bandwidth and 170 V/μs slew rate.
- True single-supply capability with an input voltage range extending 300 mV below the negative rail.
- Wide supply range: 2.7 V to 5.5 V.
- Low distortion: 79 dBc SFDR at 1 MHz.
- Low power consumption: 4.4 mA per amplifier.
- Rail-to-rail output swing.
- Qualified for automotive applications.
Applications
- Automotive infotainment systems.
- Automotive driver assistance systems.
- Imaging.
- Consumer video.
- Active filters.
- Coaxial cable drivers.
- Clock buffers.
- Photodiode preamp.
- Contact image sensor and buffers.
Q & A
- What is the typical bandwidth of the ADA4891-1ARZ?
The typical bandwidth of the ADA4891-1ARZ is 220 MHz at a gain of +1. - What is the slew rate of the ADA4891-1ARZ?
The slew rate of the ADA4891-1ARZ is 170 V/μs. - What is the settling time to 0.1% for the ADA4891-1ARZ?
The settling time to 0.1% for the ADA4891-1ARZ is 28 ns. - What is the supply voltage range for the ADA4891-1ARZ?
The supply voltage range for the ADA4891-1ARZ is 2.7 V to 5.5 V. - What is the typical input offset voltage of the ADA4891-1ARZ?
The typical input offset voltage of the ADA4891-1ARZ is ±2.5 mV. - What is the input bias current of the ADA4891-1ARZ?
The input bias current of the ADA4891-1ARZ is typically ±50 pA. - What is the maximum output current of the ADA4891-1ARZ?
The maximum output current of the ADA4891-1ARZ is 125 mA. - What are the operating temperature ranges for the ADA4891-1ARZ?
The operating temperature range for the ADA4891-1ARZ is -40°C to +125°C. - In what packages is the ADA4891-1ARZ available?
The ADA4891-1ARZ is available in 8-lead SOIC and 5-lead SOT-23 packages. - What are some common applications of the ADA4891-1ARZ?
The ADA4891-1ARZ is commonly used in automotive infotainment systems, automotive driver assistance systems, imaging, consumer video, active filters, coaxial cable drivers, clock buffers, photodiode preamp, and contact image sensor and buffers.
