MAX40016 4-Decade Current Sense Amplifier with Integrated Current Sense Element
■The MAX40016 is a very wide range current sense amplifier (CSA) with internal sense element that senses from less than 300μA to greater than 3A current range. The 4-decade sensed current functions with 1% (typical) gain error and offers three, multiplexed programmable output ranges in order to interface with 12-bit ADCs. Having an integrated sense element has the extra advantage that the entire current measuring path can be factory-trimmed, saving the user from having to calibrate independent sense resistors and CSAs. The MAX40016 (WLP package) drops a typical of 60mV at 3A from the voltage input to load output .
■The MAX40016's integrated current-sensing element saves the space and cost of an external high-power, precision current sense resistor. The MAX40016 is offered in an ultra-tiny, 1.98mm x 1.31mm, 15-bump waferlevel package (WLP), further reducing board space. The MAX40016 is also available in a 4mm x 4mm 16-pin TQFN package.
■The MAX40016 operates with a supply voltage from 2.5V to 5.5V. The device features a low-power mode in which the current-sensing element remains on, but the outputs are turned off to reduce the total supply current below 10μA (max).
■The MAX40016 also includes a committed on-board amplifier with an internal gain of 1.5V/V. The MAX40016 operates over the -40°C to +125°C temperature range.
●Benefits and Features
■Integrated Current Sense Element Saves The Space and Cost of Expensive Precision Sense Resistors
■4-Decade Measurement Range
◆Maintains Accuracy from < 300μA to > 3A
■Withstands Overloads to 4A
■Low Voltage Drop Across Sense Element
◆60mV (Active Mode, 3A Load, WLP Package)
◆35mV (Low Power Mode, 3A Load, WLP Package)
■Three Multiplexed Scaling Resistor Outputs Allow Full Dynamic Range while Interfaced to 12-bit ADCs
■+2.5V to +5.5V Input Supply Voltage Range
■Low Power Mode Reduces Supply Current to 10μA Max
■Space-Saving
◆Tiny 1.98mm x 1.3mm, 15-Bump WLP
◆4mm x 4mm 16-Pin TQFN
■-40°C to +125°C Operating Temperature Range
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current sense amplifier 、 CSA 、 4-Decade Current Sense Amplifier |
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[ Mobile Devices ][ RF Power Monitoring ][ Portable Instruments ] |
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Datasheet |
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Please see the document for details |
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TQFN;WLP |
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English Chinese Chinese and English Japanese |
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11/18 |
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Rev 2 |
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19-100232 |
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925 KB |
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