LM397 datasheet(3/9 Pages) NSC

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Electrical Characteristics Unless otherwise specified, all limits guaranteed for at T

J = 25˚C, VS = 5V.

Boldface limits apply at temperature extremes. (Continued)

Symbol

Parameter

Conditions

Min

(Note 6)

Typ

(Note 5)

Max

(Note 6)

Units

Voltage Gain

S = 15V, VO = 1.4V to 11.4V,

L > = 15kΩ connected to VS

120

V/mV

PHL

Propagation Delay (High to Low)

Input Overdrive = 5mV

L = 5.1kΩ connected to 5V,

L = 15pF

900

Input Overdrive = 50mV

L = 5.1kΩ connected to 5V,

L = 15pF

250

PLH

Propagation Delay (Low to High)

Input Overdrive = 5mV

L = 5.1kΩ connected to 5V,

L = 15pF

940

µs

Input Overdrive = 50mV

L = 5.1kΩ connected to 5V,

L = 15pF

440

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.

Note 2: Human body model, 1.5k

Ω in series with 100pF.

Note 3: Machine model, 0

Ω in series with 200pF.

Note 4: The maximum power dissipation is a function of TJ(MAX), θJA , and TA. The maximum allowable power dissipation at any ambient temperature is

PD =(TJ(MAX) -TA)/ θJA . All numbers apply for packages soldered directly onto a PC board.

Note 5: Typical values represent the most likely parametric norm.

Note 6: All limits are guaranteed by testing or statistical analysis.

Note 7: The input common-mode voltage of either input should not be permitted to go below the negative rail by more than 0.3V. The upper end of the

common-mode voltage range is VS - 1.5V at 25˚C.

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