Bidirectional 70V Current Sense Amplifier

The LTC6104 has outstanding performance: input bias current is 170nA Max and input offset voltage is ±450uV Max. This precision performance allows the part to resolve tiny currents and operate over a wide dynamic range. The LTC6104 can withstand voltages up to 70V, a valuable feature when power supply failures or catastrophic load changes can lead to voltage fly-back conditions. With a response time under 1us, the LTC6104 is ideal for automatic power shutdown under fault conditions. Gain is set with three external resistors and since the gain resistors are the primary determinants of accuracy, use of precision resistors provides for accuracy better than 1%.

The LTC6104 continues Linear Technology's leadership in high performance current sense amplifiers, says Mike Kultgen, Design Manager for Linear Technology. The LTC6104 addresses a wide array of applications, both straightforward and unique.

The LTC6104 is in full production, with prices starting at $1.38 each in 1,000-piece quantities.