Overview
The AD8031AR-REEL7, produced by Analog Devices Inc., is a single-supply, voltage feedback operational amplifier. This component is part of the AD8031 series, which includes both single (AD8031) and dual (AD8032) versions. The AD8031AR-REEL7 is characterized by its high-speed performance, low power consumption, and rail-to-rail input and output capabilities. It is fabricated on Analog Devices’ eXtra Fast Complementary Bipolar (XFCB) process, enabling it to operate with a supply voltage as low as 2.7 volts while maintaining impressive dynamic performance.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | 2.7 | 12 | V | ||
| Quiescent Current per Amplifier | 800 | 1400 | 1400 | µA | |
| –3 dB Small Signal Bandwidth (G = +1) | VO < 0.4 V p-p | 54 | 80 | 80 | MHz |
| Slew Rate (G = –1, VO = 2 V step) | 25 | 30 | 30 | V/µs | |
| Settling Time to 0.1% (G = –1, VO = 2 V step, CL = 10 pF) | 125 | 125 | 125 | ns | |
| Output Voltage Swing (RL = 1 kΩ) | -4.7 | -4.85 | -4.7 | V | |
| Output Voltage Swing (RL = 1 kΩ) | +4.7 | +4.75 | +4.7 | V | |
| Output Current | 15 | 15 | 15 | mA | |
| Power Supply Rejection Ratio | VS− = −5 V to −6 V or VS+ = +5 V to +6 V | 76 | 86 | 86 | dB |
Key Features
- Low power consumption: 800 µA per amplifier
- High speed performance: 80 MHz small signal bandwidth, 30 V/µs slew rate, and 125 ns settling time to 0.1%
- Rail-to-rail input and output: Input voltage range extends 200 mV beyond supply rails, and output voltage swings to within 20 mV of either rail
- No phase reversal with input 0.5 V beyond supplies
- Low distortion: –62 dBc at 1 MHz, VO = 2 V p-p
- High output current: 15 mA
- Operating range: +2.7 V to +12 V single supply, and ±5 V dual supply
Applications
- High speed, battery-operated systems
- High component density systems
- Portable test instruments
- A/D buffers
- Active filters
- High speed, set-and-demand amplifiers
Q & A
- What is the typical supply current per amplifier for the AD8031AR-REEL7?
The typical supply current per amplifier is 800 µA.
- What is the small signal bandwidth of the AD8031AR-REEL7 at a gain of +1?
The small signal bandwidth is typically 80 MHz at a gain of +1.
- What is the slew rate of the AD8031AR-REEL7?
The slew rate is typically 30 V/µs.
- What is the settling time to 0.1% for the AD8031AR-REEL7?
The settling time to 0.1% is typically 125 ns.
- Does the AD8031AR-REEL7 have rail-to-rail input and output capabilities?
Yes, it has rail-to-rail input and output capabilities, with the input voltage range extending 200 mV beyond the supply rails and the output voltage swinging to within 20 mV of either rail.
- What is the maximum output current of the AD8031AR-REEL7?
The maximum output current is 15 mA.
- What are the operating supply voltage ranges for the AD8031AR-REEL7?
The operating supply voltage ranges are +2.7 V to +12 V for single supply and ±5 V for dual supply.
- What are some common applications for the AD8031AR-REEL7?
Common applications include high speed, battery-operated systems, high component density systems, portable test instruments, A/D buffers, active filters, and high speed, set-and-demand amplifiers.
- Does the AD8031AR-REEL7 exhibit phase reversal with inputs beyond the supply rails?
No, it does not exhibit phase reversal with inputs up to 0.5 V beyond the supply rails.
- What is the typical distortion performance of the AD8031AR-REEL7 at 1 MHz?
The typical distortion performance is –62 dBc at 1 MHz with VO = 2 V p-p.
