ADM4073:  Low Cost, Voltage Output, High-side Current Sense Amplifier

The ADM4073 is a low-cost, high-side current-sense amplifier, and features a voltage output that does not require gain setting resistors. This makes it ideal for small portable applications such as ...続きを見る

Analog Devices also has current monitors with onboard I2C ADC's to view these products please go to the ADM1191 and ADM1192 product pages

ADM4073:  Low Cost, Voltage Output, High-side Current Sense Amplifier

製品概要

The ADM4073 is a low-cost, high-side current-sense amplifier, and features a voltage output that does not require gain setting resistors. This makes it ideal for small portable applications such as cell phones, notebook computers, PDAs, and other systems where current monitoring is crucial. High-side current monitoring ensures the ground path is not interrupted making the ADM4073 particularly useful in rechargeable battery powered systems and the wide 1.8MHz bandwidth makes it suitable for use inside battery-charger control loops. The input common-mode range of +2V to +28V is independent of the supply voltage.

The combination of three gain versions and a selectable external-sense resistor sets the full-scale current reading. The ADM4073 offers a high level of integration, resulting in a simple and compact current-sense solution.

The ADM4073 operates from a +3V to +28V single supply and draws only 0.5mA of supply current. This device is specified over the automotive operating temperature range (-40°C to +125°C) and is available in a 6-pin SOT-23 package.

Features

  • Low-Cost, Compact, Current-Sense Solution
  • Three Gain Versions Available:
    +20V/V (ADM4073T)
    +50V/V (ADM4073F)
    +100V/V (ADM4073H)
  • ±1.0° Full-Scale Accuracy
  • 500µA Supply Current
  • Wide 1.8MHz Bandwidth
  • +3V to +28V Operating Supply
  • Wide +2V to +28V Common-Mode Range Independent of Supply Voltage
  • Operates from -40°C to +125°C
  • Available in a 6-Pin SOT-23 Package
  • Pin for Pin Compatible with MAX4073

Diagrams

ADM4073 Diagram
Functional Block Diagram for ADM4073

仕様

Single/Dual Supply Single
Voltage Supply (Vmax) +28V
Gain Range (min to max) 40
Bandwidth G=10 (kHz typ) 1800kHz
CMRR (dB) 90dB
Temperature Range -40 to +125
Package SOT

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新製品情報のRSSフィードを取得
Part# Common Mode Range (V) Bandwidth G=10 (kHz typ) CMRR (dB) Gain Range (min to max) Voltage Supply (Vmin) Voltage Supply (Vmax) Supply Current (max) VosiTC (µV/deg C) Gain temp co. Temperature Range Package Price* (1000-4999)
AD22057 -1 to 24 30 80 20 +3 +26 0.5mA - - -40 to +125 DIP, SOIC $4.62
AD626 0 to 54 100 66 90 ±2.4 ±6 2mA 0.000006 150ppm/C -40 to +85 DIP, SOIC $3.70
AD628 +/- 100 600 77 100 ±5 ±18 1.6mA - - -40 to +85 SOIC $1.78
AD629 +/- 270 500 77 1 ±2.5 ±18 1mA - - -40 to +85 DIP, SOIC $2.84
AD8202 -12 to 30 50 82 20 +3.5 +12 0.25mA 10 20ppm/C -40 to +125 Die, SOIC, SOP $1.51
AD8203 -12 to 30 60 82 14 +3.5 +12 0.25mA 10 20ppm/C -40 to +125 SOP $1.37
AD8205 -2 to 65 50 78 50 +4.5 +5 2mA 15 30ppm/C -40 to +125 Die, SOIC $1.51
AD8206 -2 to 65 100 76 20 +4.5 +5.5 2mA 15 30ppm/C -40 to +125 Die, SOIC $1.37
AD8210 -2 to 65 500 100 20 +4.5 +5.5 1.5mA 10 20ppm/C -40 to +125 SOIC $1.81
AD8211 -2 to 65 500 120 20 - - 2mA 12 20ppm/C -40 to +125 SOT $0.81
AD8212 7 to 65 1000 100 1,000 +7 +65 720µA 10 - -40 to +125 MSOP $0.93
AD8213 -2 to 65 500 100 20 +4.5 +5.5 2.5mA 12 10ppm/C -40 to +125 MSOP $2.01
AD8214 5 to 65 - 80 100 +5 +65 1.2mA 15 - -40 to +125 MSOP $0.76
AD8215 -2 to 65