This document introduces a series of high-precision high-side current sense amplifier products from Linear Technology Corporation, including LT1999, LTC6102, LTC6102HV, etc. These products feature high accuracy, high-speed response, and low power consumption, which can be used to measure load currents ranging from microamps to amps.
The document introduces the LT1999 as a precision high side current sense amplifier designed for measuring fast switching currents in applications such as H-bridge motor controls, switching power supplies, solenoids, and battery chargers. Key features include an input common mode voltage range of -5V to 80V, smooth continuous operation over this entire range, and low power shutdown capabilities.
| Gain Options | 10V/V, 20V/V, 50V/V |
|---|---|
| AC CMRR | > 80dB at 100kHz |
| Gain Accuracy | 0.5% Max |
| Input Common Mode Voltage Range | -5V to 80V |
| Shutdown Current | <10uA |
| Operating Temperature Range | -55°C to 150°C |
| Package Types | 8-Lead MSOP and 8-Lead SO (Narrow) |
The LT1999 accurately measures fast switching currents in H-bridge motor controls, switching power supplies, solenoids and battery chargers.
The device features a -5V to 80V input common mode voltage range.
The amplifier has a gain accuracy of 0.5% Max.