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MFG:ADI D/C:09
Part Number: ADM4073
MFG: ADI
D/C: 09
Description: The ADM4073 is a low cost, high-side, current-sense amplifier ideal for small portable applications su...
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ADM4073
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DataSheet
General Description
ADM4073 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 A. 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).
ADM4073 Maximum Ratings
| Parameter | Rating |
| VCC to GND | −0.3 V to +30 V |
| RS± to GND | −0.3 V to +30 V |
| OUT to GND | −0.3 V to (VCC + 0.3 V) |
| OUT Short-Circuit to GND | Continuous |
| Differential Input Voltage (VRS+ − VRS−) | ±5 V |
| Current into any Pin | ±20 mA |
| Storage Temperature Range | −65°C to +125°C |
| Operating Temperature Range | −40°C to +125°C |
| Lead Temperature, Soldering (10 sec) Junction Temperature |
300°C 150°C |
ADM4073 Features
`Low cost, compact, current-sense solution
`Three available gain versions
20 V/V (ADM4073T)
50 V/V (ADM4073F)
100 V/V (ADM4073H)
`Typical ±1.0% full-scale accuracy
`500 A supply current
`Wide 1.8 MHz bandwidth
`3 V to 28 V operating supply
`Wide 2 V to 28 V common-mode range Independent of supply voltage
`Operates from −40°C to +125°C
`Available in a 6-lead SOT-23 package
`Pin-to-pin compatibility with the MAX4073
`Three available gain versions
20 V/V (ADM4073T)
50 V/V (ADM4073F)
100 V/V (ADM4073H)
`Typical ±1.0% full-scale accuracy
`500 A supply current
`Wide 1.8 MHz bandwidth
`3 V to 28 V operating supply
`Wide 2 V to 28 V common-mode range Independent of supply voltage
`Operates from −40°C to +125°C
`Available in a 6-lead SOT-23 package
`Pin-to-pin compatibility with the MAX4073
ADM4073 Typical Application
·Cell phones, PDAs
·Notebook computers
·Portable/battery-powered systems
·Smart battery packs/chargers
·Automotive
·Power management systems
·PA bias control
·General system/board-level current monitoring
·Precision current sources
·Notebook computers
·Portable/battery-powered systems
·Smart battery packs/chargers
·Automotive
·Power management systems
·PA bias control
·General system/board-level current monitoring
·Precision current sources
ADM4073 Connection Diagram
ADM4073
PDF/DataSheet Download
- Datasheet: ADM4073
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