Datasheet
MAX4968/MAX4968A
16-Channel, Linear, High-Voltage
Analog Switches
3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.37V to +5.5V, V
PP
= +10V Q5%, V
NN
= 0 to -160V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
V
DD
= +3.3V, V
NN
= -100V, V
PP
= +10V at T
A
= +25NC.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Small-Signal On-Resistance
Matching
DR
ONS
V
PP
= +10V, V
NN
= -100V, I
SW_
= 5mA 3 %
Small-Signal On-Resistance
Flatness
R
ONF
AC measured, f
SW_
= 0.5MHz,
V
SW_
= 80V
P-P
, R
LOAD
= 50I, V
PP
= +10V,
V
NN
= -100V
2 %
Switch Output Bleed Resistor R
INT
MAX4968A only 30 40 50
kI
Switch-Off Leakage I
SW_(OFF)
V
SW_
= 0V, switch off (MAX4968 only) 0 1
FA
Switch-Off DC Offset No load (MAX4968A only) -15 0 +15 mV
Switch-On DC Offset No load (MAX4968A only) -15 0 +15 mV
Switch Output Isolation Diode
Current
300ns pulse width, 2% duty cycle 3.0 A
SWITCH DYNAMIC CHARACTERISITICS
Turn-On Time t
ON
V
SW_A
= +1V, R
L
= 100I, V
NN
= -100V,
from enable to V
SW_B
= +0.9V
2 5
Fs
Turn-Off Time t
OFF
V
SW_A
= +1V, R
L
= 100I, V
NN
= -100V,
from disable to V
SW_B
= +0.9V
2 3.5
Fs
Maximum V
SW_
Slew Rate dV/dt C
L
= 100pF 20 V/ns
Off-Isolation V
ISO
f = 5MHz, R
L
= 1kI, C
L
= 10pF, V
NN
= -1V
-40
dB
f = 5MHz, R
L
= 1kI, C
L
= 10pF,
V
NN
= -100V
-48
f = 5MHz, R
L
= 50I
-76
Crosstalk V
CT
f = 5MHz, R
L
= 50I
-76 dB
SW_ Off-Capacitance C
SW_(OFF)
f = 1MHz, small signal close to zero 9 pF
SW_ On-Capacitance C
SW_ (ON)
f = 1MHz, small signal close to zero 13 pF
Output Voltage Spike V
SPK
R
L
= 50I
±70
mV
Large-Signal Analog Bandwidth
(-3dB)
f
BW_L
C
LOAD
= 200pF, 60V amplitude sinusoidal
burst, 1% duty cycle
30 MHz
Small-Signal Analog Bandwidth
(-3dB)
f
BW_S
C
LOAD
= 200pF, 100mV amplitude
sinusoidal
50 MHz
Charge Injection Q V
PP
= +10V, V
NN
= -100V, Figure 1 150 pC
LOGIC LEVELS
Logic-Input Low Voltage V
IL
0.75 V
Logic-Input High Voltage V
IH
V
DD
-
0.75
V
Logic-Output Low Voltage V
OL
I
SINK
= 1mA 0.4 V
Logic-Output High Voltage V
OH
I
SOURCE
= 1mA
V
DD
-
0.4
V
Logic-Input Capacitance C
IN
5 pF
Logic-Input Leakage I
IN
-1 +1
FA