Small Size, Low-Power, Unidirectional, Zero-Drift Current-sense Amplifier
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- Parameters
- Features
- Description
| Part number | SQ52104E |
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| Features | Input supply, Small package |
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| Direction | Unidirection |
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| Common mode voltage (min)(V) | 1.8 |
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| Common mode voltage (max)(V) | 5.5 |
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| Vcc max (V) | 5.5 |
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| Vcc min (V) | 1.8 |
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| Input offset (±)(max)(μV) | 32 |
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| Input offset drift (±)(typ)(μV/℃) | 0.01 |
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| Voltage gain (V/V) | 200 |
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| Bandwidth (kHz) | 2.5 |
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| CMRR (min)(dB) | 100 |
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| Gain error (max)(%) | 0.16 |
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| Iq (max)(mA) | 0.022 |
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| Operating temperature range(°C) | -40 to 125 |
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| Package | CSP0.76×0.76-4 |
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| Pin count | 4 |
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l Voltage-output, Current-sense Amplifier
l Common-mode Range: +1.8V to +5.5V
l Fixed Gains:
n SQ52104E: 200V/V
l Low offset Voltage: ±5μV (typical)
l Offset Drift: 0.1 µV/°C (maximum)
l Gain Error: 0.02% (typical)
l Gain Drift: 1.5 ppm/°C (maximum)
l Quiescent Current: 18μA (typical)
l Buffered Voltage Output: No Additional OP-AMP Needed
l Compact Package: CSP0.76×0.76-4
The SQ52104x is a high-side voltage output current-sense amplifier that can sense drops across shunts at common-mode voltages from +1.8V to +5.5V with the fixed gains. The miniature size is paramount for applications in cell phones, mobile accessories, notebooks, portable medical, and all battery-operated portable devices where the precision and space of current sensing are critical.
These device operates from a single +1.8V to +5.5V power supply, drawing 18μA (typical) of supply current. The SQ52104x is specified over the temperature range of –40°C to +125°C. Supply voltage for the device is shared with the IN+ pin to fit the SQ52104x in a 4-bump, ultra-thin CSP package.
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SQ52104EWMS is intended for evaluating Small Size, Low-Power, Unidirectional, Zero-Drift Current-sense Amplifier