LT1790AIS6-4.0963

The LT1790AIS6-4.0963 is one member of the LT1790 series.The LT1790 is a family of SOT-23 micropower low dropout series references that combine high accuracy and low drift with low power dissipation and small package size. These micropower references use curvature compensation to obtain a low temperature coefficient and trimmed precision thin-film resistors to achieve high output accuracy. In addition, each LT1790 is post-package trimmed to greatly reduce the temperature coefficient and increase the output accuracy. Output accuracy is further assured by excellent line and load regulation.Special care has been taken to minimize thermally induced hysteresis.

Features of the LT1790AIS6-4.0963 are:(1)low profile (1mm) thinSOTTM package; (2)low supply current: 60mA max; (3)sinks and sources current; (4)low dropout voltage; (5)guaranteed operational:40°C to 125°C; (6)wide supply range to 18V; (7)available output voltage options: 1.25V, 2.048V,; (8)2.5V, 3V, 3.3V, 4.096V and 5V.The LT1790s are ideally suited for battery-operated systems because of their small size, low supply current and reduced dropout voltage. These references provide supply current and power dissipation advantages over shunt references that must idle the entire load current to operate.Since the LT1790 can also sink current, it can operate as a micropower negative voltage reference with the same performance as a positive reference.

The absolute maximum ratings of the LT1790AIS6-4.0963 can be summarized as:(1)input voltage:20V;(2)specified temperature range:commercial:0 to 70,industrial:40 to 85;(3)output short-circuit duration:indefinite;(4)operating temperature range(note 2):40 to 125;(5)storage temperature range(note 3):-65 to 150;(6)lead temperature (soldering, 10 sec):300.The LT1790 voltage references should have an input bypass capacitor of 0.1mF or larger, however the bypassing of other local devices may serve as the required component.These references also require an output capacitor for stability. The optimum output capacitance for most applications is 1mF, although larger values work as well. This capacitor affects the turn-on and settling time for the output to reach its final value.