Datasheet

MAX14778
Dual ±25V Above- and Below-the-Rails
4:1 Analog Multiplexer
3Maxim Integrated
Note 2: All units are production tested at T
A
= +25NC. Specifications over temperature are guaranteed by design.
Note 3:
When V
DD
is higher than the charge-pump threshold, the internal 5V regulated charge pump is turned off and the input to
the high-voltage charge pumps is provided by V
DD
.
Note 4:
The MAX14778 requires a 100nF capacitor on both V
P
and V
N
to GND to guarantee full ESD protection. See the
Applications Information section for details on ESD test conditions.
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 3.0V to 5.5V, T
A
= -40NC to +85NC, unless otherwise noted. Typical values are at V
DD
= 5V, T
A
= +25NC.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LOGIC INPUTS (ENA, ENB, SA_, SB_)
Input Logic-Low Voltage V
IL
V
DD
= 5.5V 0.8
V
V
DD
= 4.5V 0.8
V
DD
= 3.6V 0.7
V
DD
= 3.0V 0.7
Input Logic-High Voltage V
IH
V
DD
= 5.5V 2.1
V
V
DD
= 4.5V 2.0
V
DD
= 3.6V 1.9
V
DD
= 3.0V 1.7
AC CHARACTERISTICS
Power-Up Time t
POR
404 ms
Enable Turn-On Time t
ON
Figure 3, V
IN
= Q10V, R
L
= 10kI,
C
L
= 15pF
2 ms
Enable Turn-Off Time t
OFF
Figure 3, V
IN
= Q10V, R
L
= 10kI,
C
L
= 15pF
1.5 ms
Break-Before-Make
Interval
t
BBM
Figure 4, V
IN
= Q10V, R
L
= 10kI,
C
L
= 15pF
840
Fs
Charge Injection Q Figure 5, V
A_
= 0V, C
L
= 1nF 1720 pC
Off-Isolation V
ISO
Figure 6, V
A_
= 1V
RMS
, f = 100kHz,
R
L
= 50I, C
L
= 15pF
-80 dB
Crosstalk V
CT
Figure 6, f = 100kHz, R
S
= R
L
= 50I
-103 dB
-3dB Bandwidth BW
Figure 6, R
S
= 50I, R
L
= 50I
75 MHz
Total Harmonic Distortion
Plus Noise
THD+N
R
S
= R
L
= 1kI, f = 20Hz to 20kHz
0.003 %
Input Capacitance C
IN
A_, B_ pins 78 pF
THERMAL PROTECTION
Thermal-Shutdown
Threshold
T
SHUT
145
NC
Thermal-Shutdown
Hysteresis
T
HYST
25
NC
ESD PROTECTION
A_, B_ Pins (Note 4) Human Body Model
Q6
kV
All Other Pins Human Body Model
Q2
kV