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| 型号： | AD8042ARZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP VF R-R DUAL LP 8SOIC |
| 设计资源： | Single-Ended-to-Differential Converters for Voltage Output and Current Output DACs Using AD8042 (CN0143) |
| 标准包装： | 1,000 |
| 放大器类型： | 电压反馈 |
| 电路数： | 2 |
| 输出类型： | 满摆幅 |
| 转换速率： | 225 V/µs |
| -3db带宽： | 170MHz |
| 电流 - 输入偏压： | 1.2µA |
| 电压 - 输入偏移： | 3000µV |
| 电流 - 电源： | 6mA |
| 电流 - 输出 / 通道： | 50mA |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 12 V，±1.5 V ~ 6 V |
| 工作温度： | -40°C ~ 85°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： | 带卷 (TR) |
Dual 160 MHz
Rail-to-Rail Amplifier
AD8042
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
2007 Analog Devices, Inc. All rights reserved.
FEATURES
Fully specified at +3 V, +5 V, and ±5 V supplies
Output swings to within 30 mV of either rail
Input voltage range extends 200 mV below ground
No phase reversal with inputs 0.5 V beyond supplies
Low power of 5.2 mA per amplifier
High speed and fast settling on 5 V
160 MHz, 3 dB bandwidth (G = +1)
200 V/μs slew rate
39 ns settling time to 0.1%
Good video specifications (RL = 150 Ω, G = +2)
Gain flatness of 0.1 dB to 14 MHz
0.02% differential gain error
0.04° differential phase error
Low distortion: 64 dBc worst harmonic @ 10 MHz
Drives 50 mA 0.5 V from supply rails
APPLICATIONS
Video switchers
Distribution amplifiers
Analog-to-digital drivers
Professional cameras
CCD Imaging systems
Ultrasound equipment (multichannel)
GENERAL DESCRIPTION
The AD8042 is a low power voltage feedback, high speed amplifier
designed to operate on +3 V, +5 V, or ±5 V supplies. It has true
single-supply capability with an input voltage range extending
200 mV below the negative rail and within 1 V of the positive rail.
2.5V
5.0V
0V
G = +1
RL = 2k TO 2.5V
1V
1s
0
10
59
-00
2
Figure 1. Output Swing: Gain = +1, VS = +5 V
CONNECTION DIAGRAM
8
7
6
5
OUT1
–IN1
+IN1
–VS
OUT2
+VS
–IN2
+IN2
1
2
3
4
AD8042
0
10
59
-00
1
Figure 2. 8-Lead PDIP and 8-Lead SOIC_N
The output voltage swing extends to within 30 mV of each rail,
providing the maximum output dynamic range. Additionally, it
features gain flatness of 0.1 dB to 14 MHz while offering differential
gain and phase error of 0.04% and 0.06° on a single 5 V supply.
This combination of features makes the AD8042 useful for
professional video electronics, such as cameras, video switchers,
or any high speed portable equipment. The low distortion and
fast settling of the AD8042 make it ideal for buffering single-
supply, high speed analog-to-digital converters (ADCs).
The AD8042 offers a low power supply current of 12 mA
maximum and can run on a single 3.3 V power supply. These
features are ideally suited for portable and battery-powered
applications where size and power are critical.
The wide bandwidth of 160 MHz along with 200 V/μs of slew
rate on a single 5 V supply make the AD8042 useful in many
general-purpose, high speed applications where single supplies
from +3.3 V to +12 V and dual power supplies of up to ±6 V are
needed. The AD8042 is available in 8-lead PDIP and 8-lead
SOIC_N packages.
15
12
9
6
3
0
–3
–6
–9
–12
–15
1
500
100
10
C
L
OS
E
D
-L
OOP
GA
IN
(dB
)
FREQUENCY (MHz)
01
05
9-
003
VS = 5V
G = +1
CL = 5pF
RL = 2k TO 2.5V
Figure 3. Frequency Response
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