Datasheet

MAX4806/MAX4807/MAX4808
Dual, Unipolar/Bipolar, High-Voltage
Digital Pulsers
12 ______________________________________________________________________________________
additional 10µF (typ) electrolytic capacitor is recom-
mended. V
SS
is the substrate voltage. Connect V
SS
to a
voltage equal to or more negative than the lower of
V
NN1
or V
NN2
.
Exposed Pad and Layout Concerns
The MAX4806/MAX4807/MAX4808 provide an exposed
pad (EP) underneath the TQFN package for improved
thermal performance. EP is internally connected to V
SS
.
Connect EP to V
SS
externally. To aid heat dissipation,
connect EP to a similarly sized pad on the component
side of the PCB. This pad should be connected through
to the solder-side copper by several plated holes to a
large heat-spreading copper area to conduct heat
away from the device.
The MAX4806/MAX4807/MAX4808 high-speed pulsers
require low-inductance bypass capacitors to their sup-
ply inputs. High-speed PCB trace design practices are
recommended. Pay particular attention to minimize trace
LEVEL
SHIFTER
V
DD
V
CC_
C
DP_
INP_
V
PP_
C
GP_
OP_
V
SS
LEVEL
SHIFTER
V
DD
V
CC_
V
SS
OCN_
GND
LEVEL
SHIFTER
V
DD
V
CC_
C
DN_
INN_
V
SS
ON_
V
NN_
C
GN_
V
SS
SHORT
CIRCUIT
LEVEL
SHIFTER
V
DD
V
EE_
C
DC_
C
GC_
INC_
EN_
GND
OCP_
V
SS
MAX4806
SHDN
C
GC_
GND
C
DC_
V
EE_
C
DN_
C
GN_
V
DD
V
CC_
C
DP_
C
GP_
Figure 1. MAX4806 Simplified Functional Diagram for One Channel