Soanar offers Linear Technology’s LTC6103, a high-voltage dual current sense amplifier. The LTC6103 is a versatile, high-voltage dual current sense amplifier that contains two independent, high side current sense amplifiers with exceptional precision and fast response capability.
The LTC6103’s amplifiers operate with a maximum input voltage up to 70V, a valuable feature when power supply failures or sudden load changes can lead to high voltage conditions. With a step response time from 0V to 2.5V of under 1µs, the device can be used for detection functions in automating power shutdown under fault conditions.
The dual-amplifier topology is suitable for multiple current sensing applications such as battery charge and H-bridge driver circuits. In the latter case, dual channel operation allows monitoring of both high sides within the bridge, eliminating large common mode voltage variation as the voltage transitions from one leg to another.
Supplied in an MS8 (8-lead plastic Mini Small Outline) package, the LTC6103 offers space savings and simpler board layout than the alternative approach of using two single channel SOT23 devices.
The features of the LTC6103 are:
- Two independent current sense amplifiers in a single Mini Small Outline Package (MSOP)
- Wide supply range: 4V to 60V, 70V absolute maximum
- Low offset voltage: 450µV maximum
- Fast response time: 1µs
- Gain configurable with external resistors
- Low input bias current: 170nA maximum
- PSRR: 110dB minimum (6V to 60V)
- Output current: 1mA maximum
- Low supply current: 275µA per amplifier @ 12V supply
- Specified for –40°C to +125°C temperature range