Overview
The AD8051AR, produced by Analog Devices Inc., is a low-cost, high-speed, single rail-to-rail operational amplifier. It is part of the AD8051/AD8052/AD8054 family, which includes single, dual, and quad configurations. This amplifier is designed to operate on +3 V, +5 V, or ±5 V supplies with low supply current, making it suitable for a wide range of applications, including video electronics, cameras, and high-speed portable equipment.
The AD8051AR offers excellent overall performance and versatility, with features such as high speed, fast settling time, and low distortion. It is fabricated using Analog Devices' proprietary eXtra-Fast Complementary Bipolar (XFCB) process, which enhances its performance characteristics.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| −3 dB Small Signal Bandwidth (G = +1) | VOUT = 0.2 V p-p | 70 | 110 | MHz | |
| Slew Rate (G = −1) | VOUT = 2 V step | 90 | 135 | V/μs | |
| Settling Time to 0.1% | G = −1, VOUT = 2 V step | 50 | ns | ||
| Total Harmonic Distortion | fC = 5 MHz, VOUT = 2 V p-p, G = −1, RL = 100 Ω | −47 | −48 | dB | |
| Input Voltage Range | VS = 5 V | −0.2 V to +4 V | V | ||
| Output Voltage Swing | Within 25 mV of each rail | V | |||
| Quiescent Current/Amplifier | VS = 5 V | 4.4 | mA | ||
| Operating Temperature Range | −40°C to +125°C | °C |
Key Features
- High speed and fast settling time, with a −3 dB bandwidth of 110 MHz (G = +1) and a slew rate of 135 V/μs.
- Single-supply operation with an input voltage range extending 200 mV below the negative rail and within 1 V of the positive rail.
- Output voltage swings to within 25 mV of each rail, providing maximum output dynamic range and excellent overdrive recovery.
- Low distortion, with total harmonic distortion of −47 dBc at 1 MHz, RL = 100 Ω.
- Outstanding load drive capability, driving 45 mA and 0.5 V from supply rails, and capable of driving 50 pF capacitive loads.
- Low power consumption, with a quiescent current of 4.4 mA per amplifier.
Applications
- Video electronics, including video switchers and consumer video systems.
- Professional cameras and CCD imaging systems.
- Active filters and analog-to-digital drivers.
- Clock buffers and high-speed portable equipment.
- CD/DVD ROMs and other high-speed applications requiring low distortion and fast settling times.
Q & A
- What is the typical bandwidth of the AD8051AR at a gain of +1?
The typical bandwidth of the AD8051AR at a gain of +1 is 110 MHz.
- What is the slew rate of the AD8051AR?
The slew rate of the AD8051AR is 135 V/μs.
- What is the input voltage range for the AD8051AR when operating on a 5V supply?
The input voltage range for the AD8051AR when operating on a 5V supply is from −0.2 V to +4 V.
- How much current does the AD8051AR typically consume per amplifier?
The AD8051AR typically consumes 4.4 mA per amplifier.
- What is the operating temperature range for the AD8051AR?
The operating temperature range for the AD8051AR is −40°C to +125°C.
- What kind of packages is the AD8051AR available in?
The AD8051AR is available in 5-Lead SOT-23 and 8-Lead SOIC packages).
- What are some common applications for the AD8051AR?
Common applications include video electronics, professional cameras, active filters, and high-speed portable equipment).
- How much output current can the AD8051AR drive?
The AD8051AR can drive up to 45 mA and 0.5 V from the supply rails).
- What is the total harmonic distortion of the AD8051AR at 1 MHz?
The total harmonic distortion of the AD8051AR at 1 MHz is −47 dBc).
- Can the AD8051AR drive capacitive loads?
Yes, the AD8051AR can drive up to 50 pF capacitive loads).
