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ADA4857-1YCPZ-R2 其他数据使用手册 - ADI（亚德诺）
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ADI（亚德诺）
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运算放大器
封装:
LFCSP-8
描述:
超低失真，低功耗，低噪声，高速运算放大器 Ultralow Distortion, Low Power, Low Noise, High Speed Op Amp
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ADA4857-1YCPZ-R2数据手册
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Ultralow Distortion, Low Power,
Low Noise, High Speed Op Amp
Data Sheet
ADA4857-1/ADA4857-2
Rev. B
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 ©2008–2011 Analog Devices, Inc. All rights reserved.
FEATURES
High speed
850 MHz, −3 dB bandwidth (G = +1, R
L
= 1 kΩ, LFCSP)
750 MHz, −3 dB bandwidth (G = +1, R
L
= 1 kΩ, SOIC)
2800 V/µs slew rate
Low distortion: −88 dBc @ 10 MHz (G = +1, R
L
= 1 kΩ)
Low power: 5 mA/amplifier @ 10 V
Low noise: 4.4 nV/√Hz
Wide supply voltage range: 5 V to 10 V
Power-down feature
Available in 3 mm × 3 mm 8-lead LFCSP (single), 8-lead SOIC
(single), and 4 mm × 4 mm 16-lead LFCSP (dual)
APPLICATIONS
Instrumentation
IF and baseband amplifiers
Active filters
ADC drivers
DAC buffers
CONNECTION DIAGRAMS
NC = NO CONNECT
1PD
2FB
3–IN
4+IN
7 OUT
8 +V
S
6 NC
5 –V
S
ADA4857-1
TOP VIEW
(Not to Scale)
07040-001
Figure 1. 8-Lead LFCSP (CP)
FB
1
–IN
2
+IN
3
–V
S
4
PD
8
+V
S
7
OUT
6
NC
5
NC = NO CONNECT
ADA4857-1
TOP VIEW
(Not to Scale)
07040-002
Figure 2. 8-Lead SOIC (R)
1–IN1
2
+IN1
3NC
4–V
S2
11 NC
12 –V
S1
10 +IN2
9 –IN2
5
OUT2
6
+V
S2
7
PD2
8
FB2
FB1
PD1
+V
S1
OUT1
15
16
14
13
ADA4857-2
TOP VIEW
(Not to Scale)
NC = NO CONNECT
07040-003
Figure 3. 16-Lead LFCSP (CP)
GENERAL DESCRIPTION
The ADA4857 is a unity-gain stable, high speed, voltage feedback
amplifier with low distortion, low noise, and high slew rate. With a
spurious-free dynamic range (SFDR) of −88 dBc @ 10 MHz, the
ADA4857 is an ideal solution for a variety of applications, including
ultrasounds, ATE, active filters, and ADC drivers. The Analog
Devices, Inc., proprietary next-generation XFCB process and
innovative architecture enables such high performance amplifiers.
The ADA4857 has 850 MHz bandwidth, 2800 V/µs slew rate, and
settles to 0.1% in 15 ns. With a wide supply voltage range (5 V to
10 V), the ADA4857 is an ideal candidate for systems that require
high dynamic range, precision, and speed.
The ADA4857-1 amplifier is available in a 3 mm × 3 mm, 8-lead
LFCSP and a standard 8-lead SOIC. The ADA4857-2 is available in
a 4 mm × 4 mm, 16-lead LFCSP. The LFCSP features an exposed
paddle that provides a low thermal resistance path to the printed
circuit board (PCB). This path enables more efficient heat transfer
and increases reliability. The ADA4857 works over the extended
industrial temperature range (−40°C to +125°C).
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