The SC310 is a high-side current sense amplifier from Semtech. It has a wide common mode input range (2.7V to 25V) and low output impedance. It also offers three gain versions (20V/V, 50V/V and 100V/V) to meet different application requirements.
The SC310 from Semtech is a high‑side current‑sense amplifier designed for precision current monitoring in battery‑powered and industrial applications. It offers three gain versions (20 V/V, 50 V/V, 100 V/V), a buffered low‑impedance voltage output, and a wide 2.7 V to 25 V common‑mode input range.
The device is supplied in a lead‑free SOT‑23‑6 package, operates from –40 °C to +125 °C, and includes a shutdown pin for power‑saving control. Detailed electrical characteristics, pin descriptions, and a block diagram are provided.
| Gain versions | SC310A 20 V/V, SC310B 50 V/V, SC310C 100 V/V |
|---|---|
| Supply voltage range | 3 V to 25 V |
| Common‑mode input range | 2.7 V to 25 V |
| Supply current | 270 µA |
| Typical accuracy | 1 % (typical) |
| Output voltage range | OV to VCC ‑ 1.7 V |
| Package | Lead‑free SOT‑23‑6 |
| Operating temperature range | -40 °C to +125 °C |
| Shutdown pin | External SHDN pin enables turn‑off |
The SC310 operates from 3 V to 25 V supply voltage.
Three gain versions are offered: SC310A with 20 V/V, SC310B with 50 V/V, and SC310C with 100 V/V.
Typical supply current is 270 µA.
It is rated for industrial temperatures from –40 °C to +125 °C.