參數(shù)資料
型號: AD8643ACPZ-R2
廠商: Analog Devices Inc
文件頁數(shù): 1/16頁
文件大?。?/td> 0K
描述: IC OPAMP JFET R-R 3.5MHZ 16LFCSP
標準包裝: 250
放大器類型: J-FET
電路數(shù): 4
輸出類型: 滿擺幅
轉(zhuǎn)換速率: 3 V/µs
增益帶寬積: 3.5MHz
電流 - 輸入偏壓: 0.25pA
電壓 - 輸入偏移: 70µV
電流 - 電源: 200µA
電流 - 輸出 / 通道: 12mA
電壓 - 電源,單路/雙路(±): 5 V ~ 26 V,±2.5 V ~ 13 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 16-VFQFN 裸露焊盤,CSP
供應商設(shè)備封裝: 16-LFCSP-VQ EP(3x3)
包裝: 帶卷 (TR)
其它名稱: AD8643ACPZ-R2-ND
AD8643ACPZ-R2TR
Low Power, Rail-to-Rail Output, Precision
JFET Amplifiers
Data Sheet
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
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
www.analog.com
Fax: 781.461.3113
2004–2011 Analog Devices, Inc. All rights reserved.
FEATURES
Low supply current: 250 μA max
Very low input bias current: 1 pA max
Low offset voltage: 750 μV max
Single-supply operation: 5 V to 26 V
Dual-supply operation: ±2.5 V to ±13 V
Rail-to-rail output
Unity-gain stable
No phase reversal
SC70 package
APPLICATIONS
Line-/battery-powered instruments
Photodiode amplifiers
Precision current sensing
Medical instrumentation
Industrial controls
Precision filters
Portable audio
ATE
GENERAL DESCRIPTION
The AD8641/AD8642/AD8643 are low power, precision JFET
input amplifiers featuring extremely low input bias current and
rail-to-rail output. The ability to swing nearly rail-to-rail at the
input and rail-to-rail at the output enables designers to buffer
CMOS DACs, ASICs, and other wide output swing devices in
single-supply systems. The outputs remain stable with
capacitive loads of more than 500 pF.
The AD8641/AD8642/AD8643 are suitable for applications
utilizing multichannel boards that require low power to manage
heat. Other applications include photodiodes, ATE reference
level drivers, battery management, and industrial controls.
The AD8641/AD8642/AD8643 are fully specified over the
extended industrial temperature range of –40°C to +125°C. The
AD8641 is available in 5-lead SC70 and 8-lead SOIC lead-free
packages. The AD8642 is available in 8-lead MSOP and 8-lead
SOIC lead-free packages. The AD8643 is available in 14-lead
SOIC and 16-lead, 3 mm × 3 mm, LFCSP lead-free packages.
PIN CONFIGURATIONS
OUT
1
+IN
3
VEE
2
VCC
5
–IN
4
AD8641
TOP VIEW
(Not to Scale)
05072-101
Figure 1. 5-Lead SC70 (KS-5)
NC
1
–IN
2
+IN
3
VEE
4
NC
8
VCC
7
OUT
6
NC
5
AD8641
TOP VIEW
(Not to Scale)
05072-102
NC = NO CONNECT
Figure 2. 8-Lead SOIC (R-8)
OUT A
1
–IN A
2
+IN A
3
V–
4
V+
8
OUT B
7
–IN B
6
+IN B
5
AD8642
TOP VIEW
(Not to Scale)
05072-105
Figure 3. 8-Lead SOIC (R-8)
OUT A
1
–IN A
2
+IN A
3
V–
4
V+
8
OUT B
7
–IN B
6
+IN B
5
AD8642
TOP VIEW
(Not to Scale)
05072-064
Figure 4. 8-Lead MSOP (RM-8)
05072-103
OUT A
1
OUT D
14
–IN A
2
–IN D
13
+IN A
3
+IN D
12
V+
4
V–
11
+IN B
5
+IN C
10
–IN B
6
–IN C
9
OUT B
7
OUT C
8
TOP VIEW
(Not to Scale)
AD8643
Figure 5. 14-Lead SOIC (R-14)
0507
2-
104
12
11
10
9
+IN C
V–
+IN D
–IN D
1
–IN A
2
3
5
–I
N
B
OU
T
B
OU
T
C
–I
N
C
6
7
8
4
+IN B
V+
+IN A
16
15
14
13
AD8643
TOP VIEW
PIN 1
INDICATOR
NC
OU
T
A
OU
T
D
NC
NOTES
1. NC = NO CONNECT.
2. EXPOSED PAD SHOULD BE CONNECTED TO V+.
Figure 6. 16-Lead LFCSP (CP-16) (Not Drawn to Scale)
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