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638T01, 6390, 63900-1

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Info of 638T01
Info of 6390
Info of 63900-1

638T01, 6390, 63900-1 Selling Leads, Datasheet

MFG:MOT Package Cooled:ZIP D/C:0

638T01, 6390, 63900-1 Datasheet download

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Part Number: 638T01

MFG: MOT

Package Cooled: ZIP

D/C: 0

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6390 General Description

The LM193A consists of two independent precision voltage comparators with an offset voltage specification as low as 2.0mV max for two comparators which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magniture of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage.

Application areas include limit comparators, simple analog to digital converters; pulse,squarewave and time delay generators; wide range VCO; MOS clock timers; multivibrators and high voltage digital logic gates. The LM193A was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the LM193A will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators.

6390 Maximum Ratings

Supply Voltage, V+
                                                                        36Vdc or +18Vdc
Differential Input Voltage
(Note 6)
                                                                        36Vdc
Input Voltage
                                                                        -0.3Vdc to +36Vdc
Input Current (Vin < -0.3 Vdc)
(Note 5)
                                                                        50mA
Maximum Junction Temperature
                                                                        150 C
Power Dissipation
(Note 2, 3)
METAL CAN                                                     660mW
CERDIP                                                           780mW
Output Short-Circuit to Gnd
(Note 4)
                                                                       Continuous
Operating Temperature Range
                                                                       -55 C to +125 C
Thermal Resistance
ThetaJA
   METAL CAN (Still Air)                                   174 C/W
              (500LF/Min Air flow)                          99 C/W
   CERDIP     (Still Air)                                      146 C/W
              (500LF/Min Air flow)                          85 C/W
ThetaJC
   METAL CAN                                                  44 C/W
   CERDIP                                                        33 C/W
Lead Temperature
(Soldering, 10 seconds)                                +260 C
ESD Tolerance
(Note 7)
                                                                      500V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.

Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by Tjmax (maximum junction temperature ), ThetaJA (package junction to ambient thermal resistance), and TA (ambient temperature). The maximum allowable power dissipation at any temperature is Pdmax = (Tjmax - TA)/ThetaJA or the number given in the Absolute Maximum Ratings, whichever is lower.

Note 3: The LM193A must be derated based on a 150 C maximum junction temperature. The low bias dissipation and the ON-OFF characteristic of the outputs keeps the chip dissipation very small (PD<100mV), provided the output transistors are allowed to saturate.

Note 4: Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output current is approximately 20mA independent of the magnitude of V+.

Note 5: This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the comparators to go to the V+ voltage level (or to ground for a large overdrive) for the time duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative,again returns to a value greater than -0.3Vdc.

Note 6: Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than -0.3Vdc (or 0.3Vdc below the magnitude of the negative power supply, if used).

Note 7: Human body model, 1.5K Ohms in series with 100pF.

6390 Features

- Wide supply
- Voltage range                                         2.0Vdc to 36Vdc
- Single or dual supplies                       +1.0Vdc to +18Vdc
- Very low supply current drain (0.4mA)
independent of supply voltage
- Low input biasing current                                    25nA Typ
- Low input offset current                                      +3nA Typ
- Input common-mode voltage range
includes ground
- Differential input voltage range
equal to the power supply voltage
- Low output saturation voltage             250mV at 4mA Typ
- Output voltage compatible with TTL,
DTL, ECL, MOS and CMOS logic systems
- SMD : 5962-9452602MGA*, VGA**, VPA***, MPA****

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