Small Size, Low-Power, Unidirectional, Zero-Drift Current-sense Amplifier
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- Parameters
- Features
- Description
| Part number |
SQ52104E |
| Features |
Input supply, Small package |
| Direction |
Unidirection |
| Common mode voltage (min)(V) |
1.8 |
| Common mode voltage (max)(V) |
5.5 |
| Vcc max (V) |
5.5 |
| Vcc min (V) |
1.8 |
| Vshunt Input offset (±)(max)(μV) |
32 |
| Voltage gain (V/V) |
200 |
| Bandwidth (kHz) |
2.5 |
| CMRR (min)(dB) |
100 |
| Gain error (max)(%) |
0.16 |
| Iq (max)(mA) |
0.022 |
| Operating temperature range(°C) |
-40 to 125 |
| Package |
CSP0.76×0.76-4 |
| Pin count |
4 |
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
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Photo of evaluation board
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Photo of evaluation board
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Photo of evaluation board
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Photo of evaluation board
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Photo of evaluation board
The EVB_SQ52104EWMS is intended for evaluating Small Size, Low-Power, Unidirectional, Zero-Drift Current-sense Amplifier
