9/91 Rev 1.2 6/97
Copyright
1997
L
IN
F
IN
ITY
Microelectronics Inc.
11861 Western Avenue
∞
Garden Grove, CA 92841
(714) 898-8121
∞
FAX: (714) 893-2570
1
SG1644/SG2644/SG3644
FEATURES
Totem pole outputs with 3.0A peak current
capability.
Supply voltage to 22V.
Rise and fall times less than 25ns.
Propagation delays less than 20ns.
Non-inverting high-speed high-voltage Schottky
logic.
Efficient operation at high frequency.
Available in:
8 Pin Plastic and Ceramic DIP
14 Pin Ceramic DIP
16 Pin Plastic S.O.I.C.
20 Pin LCC
TO-99
TO-66
HIGH RELIABILITY FEATURES - SG1644
Available to MIL-STD-883
Radiation data available
LMI level "S" processing available
DESCRIPTION
The SG1644, 2644, 3644 is a dual non-inverting monolithic high
speed driver. This device utilizes high voltage Schottky logic to
convert TTL signals to high speed outputs up to 18V. The totem
pole outputs have 3A peak current capability, which enables them
to drive 1000pF loads in typically less than 25ns. These speeds
make it ideal for driving power MOSFETs and other large capaci-
tive loads requiring high speed switching.
In addition to the standard packages, Silicon General offers the 16
pin S.O.I.C. (DW-package) for commercial and industrial applica-
tions, and the Hermetic TO-66 (R-package) for military use.
These packages offer improved thermal performance for applica-
tions requiring high frequencies and/or high peak currents.
DUAL HIGH SPEED DRIVER
6.5V
V
REG
V
CC
2.5K
INV. INPUT
OUTPUT
3K
3K
POWER
GND
LOGIC
GND
(Substrate)
EQUIVALENT CIRCUIT SCHEMATIC