Impellimax Standard PIN Diode Drivers

Here is a brief explanation of our Standard PIN Diode Driver numbering system. For detailed data sheets and application notes (in compact .PDF format), the very best place to go is our APPNOTE DOWNLOAD AREA !

Logic Codes :

     N:       Noninverting TTL compatible. Logic "1" produces positive output

     I:          Logic "1" produces negative output : Inverting TTL compatible.

     S:         Strappable TTL compatible. Driver is inverting when INV input is used, or noninverting when NONINV input is used and INV and TP are connected.

    X:        Exclusive-Or Mode Control TTL. Tie mode control to ground for noninverting operation, or tie mode control to +5 V for inverting.

    M:        Mode Control (exclusive-nor) TTL. Logical complement to "X" logic, above.

    D:        Decoded binary TTL. Digital word (two bit or wider) selects one output to go negative while all others stay positive out.

    T:          Toggle TTL. One TTL input controls a pair of complementary outputs.

    P:          Programmable. Inputs correspond to "X" code logic (above), and outputs are programmable-output level current source/sinks.

    G:       Type code used to indicate a GaAs MMIC switch driver. See GaAs driver numbering sheets for specifics.

    B:       Balanced ECL (2-line) input.

Speed Codes :

    S:         Slow. 40 nsec typical, 100 nsec max.

    F:        Fast. 8 nsec typical, 12 nsec max.

    X:        Extremely fast. 5 nsec typical, 8 nsec max.

Number of Channels:

The third character of a driver's Impellimax standard part number is a numeral from 1 thru 9 which is the total quantity of channels per driver as defined below:

For drivers of logic codes N,I,S,M,P,and B, each output constitutes a separate channel. For drivers of logic codes T and G (see GaAs driver description page) each pair of complementary outputs constitutes one channel. For logic code D drivers, each output is counted as a separate channel.

Output Current:

The following output currents are available as standard parts. The standard test load resistances for each current level are given directly underneath:

Voltage Code:

Maximum negative supply voltage:

5, P, X, Y, and Z are also standard voltage codes, albeit less common ones. Consult the factory for details.

Package Code:

The last character is a numberal from 1 thru 9, with the following types being the most frequent:

Back to Top