Overview
The AD8031AR, produced by Analog Devices Inc., is a high-performance, single-supply, voltage feedback amplifier. This device is part of the AD8031/AD8032 series, which features high-speed performance with an 80 MHz small signal bandwidth, a 30 V/μs slew rate, and a 125 ns settling time. The AD8031AR is designed to operate on supplies ranging from +2.7 V to +12 V and dual supplies up to ±6 V, making it versatile for various applications. It is fabricated on Analog Devices' eXtra Fast Complementary Bipolar (XFCB) process, ensuring low power consumption of less than 4.0 mW from a single 5 V supply while maintaining dynamic performance.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | +2.7 V to +12 V, ±6 V (dual supply) |
| Supply Current | 800 μA per amplifier |
| Bandwidth | 80 MHz |
| Slew Rate | 30 V/μs |
| Settling Time | 125 ns to 0.1% |
| Input Common Mode Range | Extends 200 mV beyond supply rails |
| Output Swing | Within 20 mV of either supply rail (light load), 300 mV (up to 5 mA load) |
| Output Current | 15 mA |
| Temperature Range | −40°C to +85°C |
| Package | 8-Lead SOIC_N, 5-Lead SOT-23 (for AD8031A) |
Key Features
- Rail-to-rail input and output characteristics
- No phase reversal up to 500 mV beyond supply rails
- Low distortion: −62 dBc @ 1 MHz, −86 dBc @ 100 kHz
- High-speed signal transmission capability
- Low power consumption: 900 μA supply current
- Single-supply operation with true single-supply capability
- Available in space-saving packages: 8-Lead SOIC_N, 5-Lead SOT-23
Applications
- High-speed, battery-operated systems
- High component density systems
- Portable test instruments
- A/D buffers
- Active filters
- High-speed, set-and-demand amplifiers
- Laboratory and testing equipment
- Medical devices and diagnostic systems
- Audio processing: sound systems, headphones, speakers
- Video equipment: TVs, monitors, projectors
- Industrial automation: industrial control equipment, measuring instruments, robots
Q & A
- What is the bandwidth of the AD8031AR amplifier?
The bandwidth of the AD8031AR amplifier is 80 MHz.
- What is the slew rate of the AD8031AR?
The slew rate of the AD8031AR is 30 V/μs.
- What is the settling time of the AD8031AR to 0.1%?
The settling time of the AD8031AR to 0.1% is 125 ns.
- What is the input common mode range of the AD8031AR?
The input common mode range extends 200 mV beyond the supply rails.
- How much output current can the AD8031AR provide?
The AD8031AR can provide up to 15 mA of output current.
- What are the typical applications of the AD8031AR?
The AD8031AR is used in high-speed, battery-operated systems, portable test instruments, A/D buffers, active filters, and more.
- What is the temperature range for the AD8031AR?
The AD8031AR operates over the industrial temperature range of −40°C to +85°C.
- In what packages is the AD8031AR available?
The AD8031AR is available in 8-Lead SOIC_N and 5-Lead SOT-23 packages.
- What is the power consumption of the AD8031AR?
The AD8031AR consumes less than 4.0 mW of power from a single 5 V supply.
- Does the AD8031AR have rail-to-rail input and output characteristics?
Yes, the AD8031AR has rail-to-rail input and output characteristics.
