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 ...More

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

Product Description

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

Specifications

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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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 $4.57
AD626 0 to 54 100 66 90 ±2.4 ±6 2mA 0.000006 150ppm/C -40 to +85 DIP, SOIC $3.66
AD628 +/- 100 600 77 100 ±5 ±18 1.6mA - - -40 to +85 SOIC $1.76
AD629 +/- 270 500 77 1 ±2.5 ±18 1mA - - -40 to +85 DIP, SOIC $2.81
AD8202 -12 to 30 50 82 20 +3.5 +12 0.25mA 10 20ppm/C -40 to +125 Die, SOIC, SOP $1.49
AD8203 -12 to 30 60 82 14 +3.5 +12 0.25mA 10 20ppm/C -40 to +125 SOP $1.35
AD8205 -2 to 65 50 78 50 +4.5 +5 2mA 15 30ppm/C -40 to +125 Die, SOIC $1.49
AD8206 -2 to 65 100 76 20 +4.5 +5.5 2mA 15 30ppm/C -40 to +125 Die, SOIC $1.35
AD8210 -2 to 65 500 100 20 +4.5 +5.5 1.5mA 10 20ppm/C -40 to 150 SOIC $1.79
AD8211 -2 to 65 500 120 20 - - 2mA 12 20ppm/C -40 to +125 - $0.80
AD8212 7 to 65 1000 100 1,000 +7 +65 720µA 10 - -20 to +125 - $0.92
AD8213 -2 to 65 500 100 20 +4.5 +5.5 2.5mA 12 10ppm/C -40 to +125 - $1.99
AD8214 5 to 65 - 80 100 +5 +65 1.2mA 15 - -40 to +125 - $0.75
AD8215 -2 to 65 450 100 20 - - 2.2mA 6 15ppm/C -40 to +125 - $1.20
AD8216 -4 to 65 3000 90 3 - - - 10 10ppm/C -40 to +125 - $1.60
AD8228 - 560 100 90 - - - - - -40 to +85 - $2.99
AD8270 -Vs to +Vs 10000 98 1.5 - - 2.5mA 1.5 1ppm/C -40 to +125 - $1.89
AD8273 +/- 40 20000 86 1.5 - - 2.5mA 3 2ppm/C -40 to +125 - $1.65
AD8290 - - 120 50 - - 4.68mA - 15ppm/C - - $1.50
AD8553 - 1 100 10,000 +1.8 +5.5 1.3mA - - -40 to +85 MSOP $1.30
ADM4073 2 to 28 1800 90 40 +3 +28 - - - -40 to +125 SOT $0.99
AMP03 +/- 20 3000 85 1 ±5 ±15 2.5mA - - -40 to +85 - $2.78

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

Pricing, Packaging & Availability

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For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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