Symbol

Parameter

Conditions

LF444A

LF444

Units

Min

Typ

Max

Min

Typ

Max

Amplifier-to-Amplifier

−120

−120

dB

Coupling

SR

Slew Rate

V

1

1

V/µs

GBW

Gain-Bandwidth Product

V

1

1

MHz

e

n

Equivalent Input Noise Voltage

T

35

35

f = 1 kHz

i

n

Equivalent Input Noise Current

T

0.01

0.01

Note 1: Unless otherwise specified the absolute maximum negative input voltage is equal to the negative power supply voltage.

Note 2: Any of the amplifier outputs can be shorted to ground indefinitely, however, more than one should not be simultaneously shorted as the maximum junction

temperature will be exceeded.

Note 3: For operating at elevated temperature, these devices must be derated based on a thermal resistance of

Note 4: The LF444A is available in both the commercial temperature range 0˚C

available in the commercial temperature range only. The temperature range is designated by the position just before the package type in the device number. A “C”

indicates the commercial temperature range and an “M” indicates the military temperature range. The military temperature range is available in “D” package only.

duction test time, the input bias currents measured are correlated to junction temperature. In normal operation the junction temperature rises above the ambient tem-

if input bias current is to be kept to a minimum.

Note 7: Supply voltage rejection ratio is measured for both supply magnitudes increasing or decreasing simultaneously in accordance with common practice from

Note 8: Refer to RETS444X for LF444MD military specifications.

Note 9: Max. Power Dissipation is defined by the package characteristics. Operating the part near the Max. Power Dissipation may cause the part to operate outside

guaranteed limits.

Note 10: Human body model, 1.5 k

Ω in series with 100 pF.

Note 11: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating ratings indicate conditions for which the device is func-

tional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guar-

antee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is

given, however, the typical value is a good indication of device performance.

Typical Performance Characteristics

Input Bias Current

DS009156-12

Input Bias Current

DS009156-13

Supply Current

DS009156-14

www.national.com

3