参数资料
型号: ADA4857-1YRZ
厂商: Analog Devices Inc
文件页数: 1/20页
文件大小: 0K
描述: IC OPAMP VF ULDIST LP LN 8SOIC
标准包装: 98
放大器类型: 电压反馈
电路数: 1
转换速率: 2800 V/µs
-3db带宽: 850MHz
电流 - 输入偏压: 2µA
电压 - 输入偏移: 2000µV
电流 - 电源: 5mA
电流 - 输出 / 通道: 50mA
电压 - 电源,单路/双路(±): 4.5 V ~ 10.5 V,±2.25 V ~ 5.25 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SO
包装: 管件
产品目录页面: 768 (CN2011-ZH PDF)
Ultralow Distortion, Low Power,
Low Noise, High Speed Op Amp
Data Sheet
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
2008–2013 Analog Devices, Inc. All rights reserved.
FEATURES
High speed
850 MHz, 3 dB bandwidth (G = +1, RL = 1 k, LFCSP)
750 MHz, 3 dB bandwidth (G = +1, RL = 1 k, SOIC)
2800 V/s slew rate
Low distortion: 88 dBc at 10 MHz (G = +1, RL = 1 k)
Low power: 5 mA/amplifier at 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
1
PD
2
FB
3
–IN
4
+IN
7 OUT
8 +VS
6 NC
5 –VS
ADA4857-1
TOP VIEW
(Not to Scale)
07040-
001
NOTES
1. NC = NO CONNECT. DO NOT CONNECT
TO THIS PIN.
2. THE EXPOSED PAD MAY BE CONNECTED
TO GND OR VS.
Figure 1. 8-Lead LFCSP (CP)
FB
1
–IN
2
+IN
3
–VS 4
PD
8
+VS
7
OUT
6
NC
5
NC = NO CONNECT
ADA4857-1
TOP VIEW
(Not to Scale)
07040-
002
Figure 2. 8-Lead SOIC (R)
ADA4857-2
TOP VIEW
(Not to Scale)
07040-
003
12
11
10
1
3
4
9
2
6
5
7
8
16
15
14
13
NOTES
1. NC = NO CONNECT. DO NOT CONNECT
TO THIS PIN.
2. THE EXPOSED PAD MAY BE CONNECTED
TO GND OR VS.
–IN1
+IN1
NC
–VS2
–VS1
OU
T1
+V
S1
P
D1
F
B1
NC
+IN2
–IN2
OU
T2
+V
S2
P
D2
F
B2
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 at 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/s 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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