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| 型号： | ADA4859-3ACPZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC AMP 3CH CFB G=2 W/CP 16LFCSP |
| 标准包装： | 5,000 |
| 应用： | 电流反馈 |
| 电路数： | 3 |
| -3db带宽： | 265MHz |
| 转换速率： | 740 V/µs |
| 电流 - 电源： | 17mA |
| 电流 - 输出 / 通道： | 19mA |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VQFN 裸露焊盘，CSP |
| 供应商设备封装： | 16-LFCSP-VQ EP（4x4） |
| 包装： | 带卷 (TR) |
Single-Supply, Fixed G = 2, High Speed,
Video Amplifier with Charge Pump
Data Sheet
Rev. A
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
2008–2012 Analog Devices, Inc. All rights reserved.
FEATURES
Integrated charge pump
Supply range: 3 V to 5.5 V
Output range: 3.3 V to 1.8 V
50 mA maximum output current at 3 V for external use
High speed amplifiers
3 dB bandwidth: 195 MHz
Slew rate: 740 V/s
0.1 dB gain flatness: 60 MHz
0.1% settling time: 20 ns
Low power
Total quiescent current: 38 mA
Power-down feature
High input common-mode voltage range
1.8 V to +3.8 V at +5 V supply
Current feedback architecture
Differential gain error: 0.01%
Differential phase error: 0.02°
Available in 16-lead LFCSP
APPLICATIONS
Professional video
Consumer video
Imaging
Active filters
CONNECTION DIAGRAM
07715-
001
NOTES
1. NC = NO CONNECT.
2. EXPOSED PAD, CONNECT TO GROUND.
ADA4859-3
1
2
C1_a
C1_b
+V
S
+
IN3
–I
N3
OU
T3
OU
T1
–I
N1
+
IN1
NC
CPO
+VS
3
4
11 –IN2
12 +IN2
CHARGE
PUMP
10 OUT2
9
5
6
7
8
16
15
14
13
PD
Figure 1.
GENERAL DESCRIPTION
The ADA4859-3 (triple) is a single-supply, high speed current
feedback amplifier with an integrated charge pump that eliminates
the need for negative supplies in order to output negative voltages
or output a 0 V level for video applications. The 195 MHz, large
signal 3 dB bandwidth at a fixed gain of 2, as well as the 740 V/s
slew rate, make this amplifier ideal for high resolution professional
and consumer video applications. The amplifier also has a wide
input common-mode voltage range that extends from 1.8 V
below ground to 1.2 V below the positive rail at 5 V supply.
This triple video amplifier is designed to operate on supply
voltages of 3.3 V to 5 V, using only 38 mA total quiescent
current, including the charge pump. To further reduce the
power consumption, it is equipped with a power-down feature
that lowers the total supply current to as low as 2 mA when the
amplifier is not being used. Even in power-down mode, the
charge pump can be used to power external components. The
maximum output current for external use is 50 mA at 3 V.
The ADA4859-3 is available in a 16-lead LFCSP, and it is designed
to work over the industrial temperature range of 40°C to +105°C.
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