| Part number | SY2A55105 |
|---|---|
| Features | High precise |
| Direction | Bidirection |
| Common mode voltage (min)(V) | -0.3 |
| Common mode voltage (max)(V) | 26 |
| Vcc max (V) | 5.5 |
| Vcc min (V) | 3 |
| Input offset (±)(max)(μV) | 50 |
| Input offset drift (±)(typ)(μV/℃) | 0.1 |
| Voltage gain (V/V) | 100 |
| Bandwidth (kHz) | 28 |
| CMRR (min)(dB) | 105 |
| Gain error (max)(%) | 0.5 |
| Iq (max)(mA) | 0.1 |
| Operating temperature range(°C) | -40 to 125 |
| Package | SOT363 |
| Pin count | 6 |
● Voltage-Output, Current-sense Monitor
● -0.3V–26V Common-Mode Operation Range
● 100μA (Maximum) Quiescent Current
● High Accuracy: ±0.5% Gain Error (Maximum)
● Gain: 50V/V (SY2A55104), 100V/V (SY2A55105)
● Amplifier Output Referenced to VREF input
● Shunt Maximum Input Voltage Range:
o SY2A55104:
§ -40mV to 40mV (VCC=5V, REF=2.5V)
§ 1mV to 90mV (VCC=5V, REF=0V)
o SY2A55105:
§ -20mV to 20mV (VCC=5V, REF=2.5V)
§ 1mV to 45mV (VCC=5V, REF=0V)
● Low Offset Voltage(Maximum):
o ±100μV (SY2A55104),
o ±50μV (SY2A55105)
● 0.5μV/°C Offset Drift (Maximum)
● 10ppm/°C Gain Drift (Maximum)
● AEC-Q100 Qualified
● Package: SOT363
The SY2A55104 and SY2A55105 fixed-gain, high-precision, high-side or low-side, current-sense amplifiers with voltage output are suitable for bidirectional (charge /discharge) or unidirectional current measurements. The SY2A55104 provides 50V/V output gain and the SY2A55105 provides 100V/V output gain.
The SY2A55104/5 use a low-offset, zero-drift architecture and operate across the -0.3V to 26V input common-mode voltage range, which is independent of supply voltage. The precision input offset voltage (VOS) allows the devices to measure the low-voltage drop very accurately.
The SY2A55104/5 are designed to operate from a 3V to 5.5V supply and draw just 80µA (typ) quiescent current.
The devices are provided in an SOT363 package and are specified over the extended industrial temperature range of -40°C to 125°C. The device is AEC−Q100 Qualified.
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY2A55105 is intended for evaluating High Accuracy Current Sense Amplifier.
| Title | Date |
|---|---|
| Automotive_Solutions_Q1_2026 | 2026-03-06 |
| Silergy_Catalog_Q1_2026 | 2026-02-09 |
