低成本，高速，轨到轨放大器 Low Cost, High Speed, Rail-to-Rail Amplifiers
GENERAL DESCRIPTION
The AD8051 single, AD8052 dual, and AD8054 quad are low cost, high speed, voltage feedback amplifiers. The amplifiers operate on +3 V, +5 V, or ±5 V supplies at low supply current. They have 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 their low cost, the AD8051/AD8052/AD8054 provide excellent overall performance and versatility. The output voltage swings to within 25 mV of each rail, providing maximum output dynamic range with excellent overdrive recovery.
The AD8051/AD8052/AD8054 are well suited for video electronics, cameras, video switchers, or any high speed portable equipment. Low distortion and fast settling make them ideal for active filter applications.
FEATURES
High speed and fast settling on 5 V
110 MHz, −3 dB bandwidth G = +1 AD8051/AD8052
150 MHz, −3 dB bandwidth G = +1 AD8054
145 V/μs slew rate
50 ns settling time to 0.1%
Single-supply operation
Output swings to within 25 mV of either rail
Input voltage range: −0.2 V to +4 V; VS = 5 V
Video specifications G = +2
0.1 dB gain flatness: 20 MHz; RL = 150 Ω
Differential gain/phase: 0.03%/0.03°
Low distortion
−80 dBc total harmonic @ 1 MHz, RL = 100 Ω
Outstanding load drive capability
Drives 45 mA, 0.5 V from supply rails AD8051/AD8052
Drives 50 pF capacitive load G = +1 AD8051/AD8052
Low power: 2.75 mA/amplifier AD8054
Low power: 4.4 mA/amplifier AD8051/AD8052
APPLICATIONS
Active filters
Analog-to-digital drivers
Clock buffer
Consumer video
Professional cameras
CCD imaging systems
CD/DVD ROMs