Low Cost, High Speed
Rail-to-Rail Amplifiers
a
AD8051/AD8052/AD8054
CONNECTION DIAGRAMS
(Top Views)
FEATURES
Low Cost Single (AD8051), Dual (AD8052) and Quad
(AD8054)
Voltage Feedback Architecture
Fully Specified at +3 V, +5 V and ؎5 V Supplies
Single Supply Operation
Output Swings to Within 25 mV of Either Rail
Input Voltage Range: –0.2 V to +4 V; VS = +5 V
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/s Slew Rate
SO-8
SOT-23-5 (RT)
AD8051
AD8051
1
2
3
4
V
OUT
8
7
6
5
NC
+V
1
2
5 +V
S
NC
–IN
+IN
S
–V
S
+ –
V
OUT
+IN
3
4 –IN
–V
NC
S
NC = NO CONNECT
R-8, SOIC (RM)
R-14, TSSOP-14 (RU-14)
50 ns Settling Time to 0.1%
Small Packaging
AD8051 Available in SOT-23-5
AD8052 Available in SOIC-8
AD8052
1
2
3
4
1
2
3
4
5
6
7
14
13
12
11
10
9
8
7
6
5
+V
S
OUT1
–IN1
+IN1
OUT D
OUT A
؊IN A
+IN A
V+
–
+
OUT
–IN2
+IN2
؊IN D
+IN D
–
+
AD8054 Available in TSSOP-14
AD8054
V؊
–V
S
Good Video Specifications (G = +2)
Gain Flatness of 0.1 dB to 20 MHz; RL = 150 ⍀
0.03% Differential Gain Error; RL = 1K
0.03؇ Differential Phase Error; RL = 1K
Low Distortion
–80 dBc Total Harmonic @ 1 MHz, RL = 100 ⍀
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 of 2.75 mA/Amplifier (AD8054)
Low Power of 4.4 mA/Amplifier (AD8051/AD8052)
+IN C
+IN B
؊IN B
OUT B
؊IN C
8
OUT C
portable equipment. Low distortion and fast settling make them
ideal for active filter applications.
The AD8051/AD8052/AD8054 offer low power supply cur-
rent and can operate on a single +3 V power supply. These
features are ideally suited for portable and battery powered
applications where size and power are critical.
APPLICATIONS
Coax Cable Driver
Active Filters
Video Switchers
A/D Driver
The wide bandwidth and fast slew rate on a single +5 V supply
make these amplifiers useful in many general purpose, high speed
applications where dual power supplies of up to ±6 V and single
supplies from +3 V to +12 V are needed.
All of this low cost performance is offered in an 8-lead SOIC,
along with a tiny SOT-23-5 package (AD8051), a µSOIC
package (AD8052) and a TSSOP-14 (AD8054).
Professional Cameras
CCD Imaging Systems
CD/DVD ROM
5.0
4.5
PRODUCT DESCRIPTION
The AD8051 (single), AD8052 (dual) and AD8054 (quad) are
low cost, voltage feedback, high speed amplifiers designed to
operate on +3 V, +5 V or ±5 V supplies. 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.
V
= +5V
S
G = –1
R
4.0
3.5
3.0
2.5
2.0
= 2k⍀
F
L
R
= 2k⍀
Despite their low cost, the AD8051/AD8052/AD8054 provide
excellent overall performance and versatility. The output volt-
age swing extends to within 25 mV of each rail, providing the
maximum output dynamic range with excellent overdrive recov-
ery. This makes the AD8051/AD8052/AD8054 useful for video
electronics such as cameras, video switchers or any high speed
1.5
1.0
0.5
0
0.1
1
10
50
FREQUENCY – MHz
REV. B
Figure 1. Low Distortion Rail-to-Rail Output Swing
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reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
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Tel: 781/329-4700
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© Analog Devices, Inc., 1999