LP239

Specifications

Supply voltage, V_CC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V
Differential input voltage, V_ID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±36 V
Input voltage range, V_I (either input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 36 V
Input current, V _I3 0.3 V (see Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Duration of output short-circuit to ground (see Note 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited
Continuous total dissipation (see Note 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, T_A: LP239 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25to 85LP339 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...............................................................0 to 70
LP2901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .............................................................. 40 to 85
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to 150Lead temperature range 1,6 mm (1/16 inch) from case for 10 seconds: D or N package . . . . . . . . . . . 260
Lead temperature range 1,6 mm (1/16 inch) from case for 60 seconds: J package . . . . . . . . . . . . . . . . 300
† Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated in the recommended operating conditions is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values, except differential voltages, are with respect to the network ground.

2. Differential voltages are at IN+ with respect to IN .

3. This input current only exists when the voltage at any of the inputs is driven negative. The current flows through the collector-base junction of the input clamping device. In addition to the clamping device action, there is lateral n-p-n parasitic transistor action. This action is not destructive and normal output states are re-established when the input voltage returns to a value more positive than 0.3 V at T_A = 25.
4. Short circuits between outputs to V_CC can cause excessive heating and eventual destruction.
5. If the output transistors are allowed to saturate, the low bias dissipation and the on-off characteristics of the outputs keep the dissipation very small (usually less than 100 mW).

Description

`The LP239, LP339, LP2901 are low-power quadruple differential comparators. Each device consists of four  independent voltage comparators designed specifically to operate from a single power supply and typically to draw 60A drain current over a wide range of voltages. Operation from split power supplies is also possible and the ultralow power supply drain current is independent of the power supply voltage.

`Applications include limit comparators, simple analog-to-digital converters, pulse generators, squarewave generators, time delay generators, voltage controlled oscillators, multivibrators, and high-voltage logic gates.

`The LP239, LP339, LP2901 were specifically designed to interface with the CMOS logic family. The ultralow power supply current makes these products desirable in battery-powered applications.

`The LP239 is characterized for operation from 25to 85. The LP339 is characterized for operation from 0 to 70. The LP2901 is characterized for operation from 40 to 85.