MAX349 Maxim, MAX349 Datasheet - Page 10

• Manufacturer Part Number: MAX349
• Description: The MAX349/MAX350 are 8-channel and dual 4-channel serially controlled multiplexers (muxes)
• Manufacturer: Maxim

TIMING CHARACTERISTICS—Single +3V Supply (Figure 1)
(V+ = +3.0V to +3.6V, V- = 0V, T
Serially Controlled, Low-Voltage,
8-Channel/Dual 4-Channel Multiplexers
10
Note 1: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 2: ∆R
Note 3: Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at room temp.
Note 4: Guaranteed by design.
Note 5: Leakage testing at single supply is guaranteed by testing with dual supplies.
Note 6: See Figure 6. Off-isolation = 20log
Note 7: Between any two switches. See Figure 3.
SERIAL DIGITAL INTERFACE
SCLK Frequency
Cycle Time (Note 4)
CS Lead Time (Note 4)
CS Lag Time (Note 4)
SCLK High Time (Note 4)
SCLK Low Time (Note 4)
Minimum Data Setup Time
(Note 4)
Data Hold Time (Note 4)
DIN Data Valid after Falling SCLK
(Note 4)
Rise Time of DOUT (Note 4)
Allowable Rise Time at DIN,
SCLK (Note 4)
Fall Time of DOUT (Note 4)
Allowable Fall Time at DIN, SCLK
(Note 4)
RESET Minimum Pulse Width
(Note 4)
______________________________________________________________________________________
specified voltages. Flatness is defined as the difference between the maximum and minimum value of on-resistance as
measured over the specified analog signal range.
PARAMETER
ON
= R
ON(max)
- R
ON(min)
A
= T
. On-resistance match between channels and on-resistance flatness are guaranteed only with
MIN
SYMBOL
t
CH
t
f
SCLK
t
CSH2
t
t
t
t
t
t
to T
CSS
t
t
t
SCR
t
SCF
RW
CH
DH
DO
DR
CL
DS
DF
+ t
10
CL
MAX
V
COM
, unless otherwise noted. Typical values are at T
/V
50% of SCLK to 10% of
DOUT, C
20% of V+ to 70% of V+,
C
20% of V+ to 70% of V+,
C
20% of V+ to 70% of V+,
C
20% of V+ to 70% of V+,
C
NO
L
L
L
L
= 10pF
= 10pF
= 10pF
= 10pF
, V
COM
L
= 10pF
= output. NO = input to off switch.
CONDITIONS
C, E, M
C, E, M
C, E, M
C, E, M
C, E, M
C, E, M
C, E, M
C, E, M
T
C, E, M
C, E, M
C, E, M
C, E, M
C, E, M
T
A
A
= +25°C
= +25°C
A
= +25°C.)
MIN
480
240
240
190
190
0
(Note 1)
TYP
150
105
-38
38
MAX
120
400
100
100
2.1
2
2
UNITS
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
µs
ns