参数资料
| 型号： | ADM4073TWRJZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC AMP CS 1.8MHZ SOT23-6 |
| 产品培训模块： | Current Sense Amplifiers |
| 标准包装： | 1 |
| 放大器类型： | 电流检测 |
| 电路数： | 1 |
| 增益带宽积： | 1.8MHz |
| 电流 - 输入偏压： | 40µA |
| 电压 - 输入偏移： | 1000µV |
| 电流 - 电源： | 500µA |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 28 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-23-6 |
| 包装： | 标准包装 |
| 其它名称： | ADM4073TWRJZ-REEL7DKR |
Low Cost, Voltage Output,
High-Side, Current-Sense Amplifier
ADM4073
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2006–2008 Analog Devices, Inc. All rights reserved.
FEATURES
Low cost, compact, current-sense solution
3 available gain versions
20 V/V (ADM4073T)
50 V/V (ADM4073F)
100 V/V (ADM4073H)
Typical ±1.0% full-scale accuracy
Supply current: 500 μA
Wide bandwidth: 1.8 MHz
Operating supply: 3 V to 28 V
Wide common-mode range: 2 V to 28 V
Independent of supply voltage
Operating temperature range: 40°C to +125°C
Available in a 6-lead SOT-23 package
Pin-to-pin compatibility with the MAX4073
APPLICATIONS
Cell phones
PDAs
Notebook computers
Portable, battery-powered systems
Smart battery packs and chargers
Automotive
Power management systems
PA bias control
General system-level, board-level current monitoring
Precision current sources
FUNCTIONAL BLOCK DIAGRAM
2V TO 28V
3V TO 28V
0.1F
VOUT
RSENSE
ILOAD
IRG1
VOUT
RS+
GND
AV
RS–
VCC
RG2
RGD = 12k
RG1
ADM4073
IRGD
CURRENT
MIRROR
05
13
1-
0
03
OUT
Figure 1.
APPLICATION DIAGRAM
2V TO 28V
3V TO 28V
0.1F
VOUT
RSENSE
OUT
ADC
RS+
GND
RS–
VCC
ADM4073
05
13
1
-00
1
Figure 2.
GENERAL DESCRIPTION
The ADM4073 is a low cost, high-side, current-sense amplifier
ideal for small portable applications, such as cell phones,
notebook computers, PDAs, and other systems where current
monitoring is required. The device is available in three different
gain models, eliminating the need for gain-setting resistors.
Because the ground path is not interrupted, the ADM4073 is
particularly useful in rechargeable battery-powered systems,
while its wide 1.8 MHz bandwidth makes it suitable for use
inside battery-charger control loops. The input common-mode
range of 2 V to 28 V is independent of the supply voltage.
The voltage on the output pin is determined by the current
flowing through the selectable external sense resistor and the
gain of the version selected. The operating range is 3 V to 28 V
with a typical supply current of 500 μA.
The ADM4073 is available in a 6-lead SOT-23 package and is
specified over the automotive operating temperature range
(40°C to +125°C).
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