Ultralow Distortion,
High Speed Amplifiers
AD8007/AD8008
FEATURES
CONNECTION DIAGRAMS
Extremely low distortion
Second harmonic
AD8007
1
2
3
4
8
7
6
5
NC
–IN
+IN
(Top View)
NC
+V
S
−88 dBc @ 5 MHz
V
−83 dBc @ 20 MHz (AD8007)
−77 dBc @ 20 MHz (AD8008)
Third harmonic
OUT
–V
S
NC
−101 dBc @ 5 MHz
NC = NO CONNECT
−92 dBc @ 20 MHz (AD8007)
−98 dBc @ 20 MHz (AD8008)
High speed
650 MHz, −3 dB bandwidth (G = +1)
1000 V/μs slew rate
Figure 1. 8-Lead SOIC (R)
AD8007
V
5
+V
S
OUT
1
2
3
(Top View)
–V
S
Low noise
4
+IN
–IN
2.7 nV/√Hz input voltage noise
22.5 pA/√Hz input inverting current noise
Low power: 9 mA/amplifier typical supply current
Wide supply voltage range: 5 V to 12 V
0.5 mV typical input offset voltage
Small packaging: 8-lead SOIC, 8-lead MSOP, and 5-lead SC70
Figure 2. 5-Lead SC70 (KS)
AD8008
(Top View)
V
1
2
3
4
8
7
6
5
+V
V
OUT1
–IN1
S
OUT2
–IN2
+IN2
+IN1
APPLICATIONS
–V
S
Instrumentation
IF and baseband amplifiers
Filters
Figure 3. 8-Lead SOIC (R) and 8-Lead MSOP (RM)
A/D drivers
DAC buffers
The AD8007 is available in a tiny SC70 package as well as a
standard 8-lead SOIC. The dual AD8008 is available in both an
8-lead SOIC and an 8-lead MSOP. These amplifiers are rated to
work over the industrial temperature range of −40°C to +85°C.
GENERAL DESCRIPTION
The AD8007 (single) and AD8008 (dual) are high performance
current feedback amplifiers with ultralow distortion and noise.
Unlike other high performance amplifiers, the low price and
low quiescent current allow these amplifiers to be used in a
wide range of applications. Analog Devices, Inc., proprietary
second-generation eXtra-Fast Complementary Bipolar (XFCB)
process enables such high performance amplifiers with low power
consumption.
–30
G = +2
R
= 150Ω
= ±5V
= 2V p-p
L
S
–40
–50
V
V
OUT
–60
The AD8007/AD8008 have 650 MHz bandwidth, 2.7 nV/√Hz
voltage noise, −83 dB SFDR at 20 MHz (AD8007), and −77 dBc
SFDR at 20 MHz (AD8008).
–70
SECOND
–80
–90
With the wide supply voltage range (5 V to 12 V) and wide
bandwidth, the AD8007/AD8008 are designed to work in a
variety of applications. The AD8007/AD8008 amplifiers have
a low power supply current of 9 mA/amplifier.
THIRD
–100
–110
1
10
FREQUENCY (MHz)
100
Figure 4. AD8007 Second and Third Harmonic Distortion vs. Frequency
Rev. E
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 registeredtrademarks arethe 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 ©2002–2009 Analog Devices, Inc. All rights reserved.
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