LF13508

If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales  ffice/Distributors for availability and specifications.
Positive Supply b Negative Supply (V_CC-V_EE)                       36V
Positive Analog Input Voltage (Note 1)                                V_CC
Negative Analog Input Voltage (Note 1)                              -V_EE
Positive Digital Input Voltage                                               V_CC
Negative Digital Input Voltage                                              -5V
Analog Switch Current                                                lI_Slk10 mA
Power Dissipation (P_D at 25)
(Notes2&7)
Molded DIP (N) P_D                                                         500 mW
Cavity DIP (D) P_D                                                           900 mW
Small Outline (SO) P_D                                                     500 mW
Maximum Junction Temperature (T_jMAX)                            100
Operating Temperature Range                        0 T_A  +70
Storage Temperature Range                               -65to +150
Lead Temperature
D Package (Soldering, 10 seconds)                                    300
N Package (Soldering, 10 seconds)                                    260
Surface Mount Package (S_O)
Vapor Phase (60 seconds)                                                 215
Infrared (15 seconds)                                                        220

The LF13508 is an 8-channel analog multiplexer which con- nects the output to 1 of the 8 analog inputs depending on the state of a 3-bit binary address. An enable control allows disconnecting the output, thereby providing a package se-lect function.

This LF13508 is fabricated with National's BI-FET technology which provides ion-implanted JFETs for the analog switch on the same chip as the bipolar decode and switch drive circuitry. This technology makes possible low constant ''ON'' resistance with analog input voltage variations. This device does not suffer from latch-up problems or static charge blow-out problems associated with similar CMOS parts. The digital inputs are designed to operate from both TTL and CMOS levels while always providing a definite break-before-make action.

The LF13509 is a 4-channel differential analog multiplexer.

A 2-bit binary address will connect a pair of independent analog inputs to one of any 4 pairs of independent analog
outputs. The LF13508 has all the features of the LF13508 series and should be used whenever differential analog in-puts are required.