Overview
The AD8091ARTZ-R2, produced by Analog Devices Inc., is a low-cost, high-speed, voltage feedback operational amplifier. It is part of the AD8091 and AD8092 series, which are designed to operate on +3 V, +5 V, or ±5 V supplies. This amplifier offers true single-supply capability with an input voltage range extending 200 mV below the negative rail and within 1 V of the positive rail. Despite its low cost, the AD8091 provides excellent overall performance and versatility, making it suitable for various high-speed applications.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| −3 dB Small Signal Bandwidth (G = +1, VO = 0.2 V p-p) | TA = 25°C, VS = 5 V, RL = 2 kΩ to 2.5 V | 70 | 110 | MHz | |
| Slew Rate (G = −1, VO = 2 V step) | TA = 25°C, VS = 5 V, RL = 2 kΩ to 2.5 V | 100 | 145 | V/μs | |
| Settling Time to 0.1% (G = −1, VO = 2 V step) | TA = 25°C, VS = 5 V, RL = 2 kΩ to 2.5 V | 50 | ns | ||
| Input Resistance | 290 kΩ | ||||
| Input Common-Mode Voltage Range | −0.2 to +4 V | V | |||
| Output Voltage Swing (RL = 10 kΩ to 2.5 V) | 0.015 to 4.985 V | V | |||
| Output Current (VOUT = 0.5 V to 4.5 V) | 45 mA | mA | |||
| Power Supply Operating Range | 3 to 12 V | V | |||
| Quiescent Current/Amplifier | 4.4 to 5 mA | mA | |||
| Operating Temperature Range | −40 to +85 °C | °C |
Key Features
- High Speed and Low Cost: The AD8091 offers high-speed performance at a low cost, making it an excellent choice for various applications.
- True Single-Supply Capability: It can operate on single supplies from +3 V to +12 V and dual supplies up to ±6 V.
- Rail-to-Rail Operation: The input voltage range extends 200 mV below the negative rail and within 1 V of the positive rail, and the output voltage swing is within 25 mV of each rail.
- Low Distortion and Fast Settling: Ideal for active filter applications and video electronics due to its low distortion and fast settling times.
- Low Power Consumption: Features a low quiescent current, making it suitable for portable and battery-powered applications.
- Compact Packaging: Available in 5-lead SOT-23, 8-lead SOIC, and MSOP packages, making it versatile for different design needs.
Applications
- Video Electronics: Suitable for cameras, video switchers, and other high-speed video equipment.
- Active Filter Applications: Ideal due to its low distortion and fast settling times.
- Portable and Battery-Powered Equipment: Low power consumption makes it suitable for applications where size and power are critical.
- Medical Ultrasound Systems: Can be used in circuits such as 2 MHz biquad bandwidth filters.
- General-Purpose High-Speed Applications: Useful in various applications requiring high bandwidth and fast slew rates.
Q & A
- What is the typical operating voltage range for the AD8091?
The AD8091 can operate on single supplies from +3 V to +12 V and dual supplies up to ±6 V.
- What is the input voltage range of the AD8091?
The input voltage range extends 200 mV below the negative rail and within 1 V of the positive rail.
- What is the slew rate of the AD8091?
The slew rate is typically 145 V/μs for a 2 V step.
- What is the settling time of the AD8091?
The settling time to 0.1% is typically 50 ns for a 2 V step.
- What are the typical applications of the AD8091?
The AD8091 is suitable for video electronics, active filter applications, portable and battery-powered equipment, and general-purpose high-speed applications.
- What are the available package options for the AD8091?
The AD8091 is available in 5-lead SOT-23, 8-lead SOIC, and MSOP packages.
- What is the quiescent current of the AD8091?
The quiescent current per amplifier is typically between 4.4 mA and 5 mA.
- What is the operating temperature range of the AD8091?
The operating temperature range is from −40°C to +85°C.
- How does the AD8091 perform in terms of output voltage swing?
The output voltage swing extends to within 25 mV of each rail, providing a maximum output dynamic range.
- Is the AD8091 suitable for medical applications?
Yes, it can be used in medical ultrasound systems, such as in 2 MHz biquad bandwidth filters.
