AD8051: Low Cost, High Speed, Single, Rail-to-Rail Amplifier 0 pages

Low Cost, High Speed,
Rail-to-Rail Amplifiers
AD8051/AD8052/AD8054
Rev. J
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved.
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/ìs 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 Ù
Differential gain/phase: 0.03%/0.03° Low distortion
-80 dBc total harmonic @ 1 MHz, RL = 100 Ù
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 PIN CONNECTIONS (TOP VIEWS)
8
7
6
5
1
2
3
4
NC
–IN
+IN
NC
NC
AD8051
NC = NO CONNECT
+VS
VOUT
–VS
01062-001
1
2
3
5
4 –IN +IN
AD8051
+ –
VOU +VS T
–VS
01062-002
Figure 1. SOIC-8 (R) Figure 2. SOT-23-5 (RJ)
8
7
6
5
1
2
3
4
+
–
+
–
OUT1
–IN1
+IN1
OUT
–IN2
AD8052
+IN2
+VS
–VS
01062-003
V+
+IN B
OUT B
OUT D
+IN D
V–
+IN C
OUT C
AD8054
+IN A
OUT A 1
2
3
4
5
6
7
14
13
12
11
10
9
8
–IN A
–IN B
–IN D
–IN C
01062-004
Figure 3. SOIC (R-8) and MSOP (RM-8) Figure 4. SOIC (R-14) and TSSOP (RU-14)
FREQUENCY (MHz)
4.5
0
50
3.0
1.5
1.0
0.5
4.0
3.5
2.0
2.5
5.0
PEAK-TO-PEAK OUTPUT VOLTAGE SWING
(THD 0.5%) (V)
0.1 1 10
VS = 5V
G = –1
RF = 2kÙ
RL = 2kÙ
01062-005
Figure 5. Low Distortion Rail-to-Rail Output Swing 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. The AD8051/AD8052 in the 8-lead SOIC, the AD8052 in the
MSOP, the AD8054 in the 14-lead SOIC, and the 14-lead TSSOP
packages are available in the extended temperature range of -40°C to +125°C.