AD8045ACP-REEL7 Datasheet

  • AD8045ACP-REEL7

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3 nV/鈭欻z Ultralow Distortion,
High Speed Op Amp
AD8045
FEATURES
Ultralow distortion
SFDR
鈭?01 dBc @ 5 MHz
鈭?0 dBc @ 20 MHz
鈭?3 dBc @ 70 MHz
Third-order intercept
43 dBm @ 10 MHz
Low noise
3 nV/鈭欻z
3 pA/鈭欻z
High speed
1 GHz, 鈭? dB bandwidth (G = +1)
1350 V/碌s slew rate
7.5 ns settling time to 0.1%
Standard and low distortion pinout
Supply current: 15 mA
Offset voltage: 1.0 mV max
Wide supply voltage range: 3.3 V to 12 V
APPLICATIONS
Instrumentation
IF and baseband amplifiers
Active filters
ADC drivers
DAC buffers
CONNECTION DIAGRAMS
NC
FEEDBACK
鈥揑N
+IN
1
2
3
4
8
7
6
5
+V
S
OUTPUT
NC
鈥揤
S
04814-0-001
Figure 1. 8-Lead AD8045 LFCSP (CP-8)
FEEDBACK
1
鈥揑N
2
+IN
3
鈥揤
S 4
8
NC
+
V
S
OUTPUT
NC
04814-0-001
7
6
5
Figure 2. 8-Lead AD8045 SOIC/EP (RD-8)
GENERAL DESCRIPTION
The AD8045 is a unity gain stable voltage feedback amplifier
with ultralow distortion, low noise, and high slew rate. With a
spurious-free dynamic range of 鈭?0 dBc @ 20 MHz, the
AD8045 is an ideal solution in a variety of applications,
including ultrasound, ATE, active filters, and ADC drivers.
ADI鈥檚 proprietary next generation XFCB process and innovative
architecture enables such high performance amplifiers.
The AD8045 features a low distortion pinout for the LFCSP,
which improves second harmonic distortion and simplifies the
layout of the circuit board.
The AD8045 has 1 GHz bandwidth, 1350 V/碌s slew rate, and
settles to 0.1% in 7.5 ns. With a wide supply voltage range (3.3 V
to 12 V) and low offset voltage (200 碌V), the AD8045 is an ideal
candidate for systems that require high dynamic range, preci-
sion, and high speed.
The AD8045 amplifier is available in a 3 mm 脳 3 mm LFCSP
and the standard 8-lead SOIC. Both packages feature an
exposed paddle that provides a low thermal resistance path to
the PCB. This enables more efficient heat transfer, and increases
reliability. The AD8045 works over the extended industrial
temperature range (鈭?0掳C to +125掳C).
鈥?0
G = +1
鈥?0 V
S
= 卤5V
V
OUT
= 2V p-p
鈥?0 R
L
= 1k鈩?/div>
R
S
= 100鈩?/div>
鈥?0
鈥?0
鈥?0
鈥?0
HD3 LFCSP
鈥?0
鈥?00
鈥?10
鈥?20
0.1
04814-0-079
HARMONIC DISTORTION (dBc)
HD2 LFCSP
1
10
FREQUENCY (MHz)
100
Figure 3. Harmonic Distortion vs. Frequency for Various Packages
Rev. A
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: 781.326.8703
漏 2004 Analog Devices, Inc. All rights reserved.

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