Linear Technology's LT1999 has a 2MHz bandwidth to monitor
currents in H-bridge motor controls, switching power supplies, solenoid and
battery chargers. To maintain accuracy, even when monitoring motor and solenoid
current, the LT1999 guarantees more than 80 dB of common-mode rejection at 100
kHz. This ensures that the LT1999
remains insensitive to the large square wave input common-mode voltages present
in these applications.
The LT1999 features a
buffered output with three fixed-gain options for 10, 20 and 50V/V. By default,
output voltage is referenced halfway between the supply voltage and ground,
enabling the output to indicate both the magnitude and direction of the sensed
current. The output bias level can be set via a separate input. Gain error is
guaranteed at less than 0.5 percent and input offset voltage is guaranteed at
less than 1.5 mV over the full temperature range of -40 to 125C. The LT1999
operates with an independent 5V supply voltage, drawing 1.5 mA while active and
10ÂµA in shutdown mode.
Offered in an
8-lead MSOP package and 8-lead SOP package, the LT1999
family is fully specified over four temperature ranges: 0 to 70, -40 to 85, -40
to 125, and -55 to 150C.
On Memorial Day, Americans remember the sacrifices the US armed forces have made, and continue to make, in service to the country. All of us should also consider the developments in technological capabilities and equipment over the years that contribute to the success of our military operations.
In order to keep in line with safety protocols, industrial networks need to be filtered in a semantic way so that only information related to diagnostics is flowing back to the vendor and that any communications that could be used for remote machine operations are suppressed.
Advanced visualization can depict an entire plant in motion, while also detailing an individual workstation. Individual products can be rendered different for each discipline involved — marketing, engineering, or suppliers.
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