MAX382CWN+T [MAXIM]
Single-Ended Multiplexer, 1 Func, 8 Channel, CMOS, PDSO18, 0.300 INCH, SO-18;
| 型号： | MAX382CWN+T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Single-Ended Multiplexer, 1 Func, 8 Channel, CMOS, PDSO18, 0.300 INCH, SO-18 复用器 |
| 文件： | 总12页 (文件大小：108K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-0396; Rev. 0; 5/95
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
2/MAX384
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
The MAX382/MAX384 are low-voltage, CMOS, 1-of-8
and dual 4-channel muxes with latchable digital inputs.
They feature low-voltage operation from a +2.7V to
+16.5V single supply and from ±3V to ±8V dual sup-
plies. Pin compatible with the DG428/DG429, these
muxes offer low on-resistance (100Ω max) matched to
within 4Ω max between channels. Additional features
include off leakage less than 2.5nA at +85°C and guar-
anteed low charge injection (10pC max). ESD protec-
tion is greater than 2000V per Method 3015.7.
♦ Pin-Compatible with Industry-Standard
DG428/DG429, DG528/DG529, MAX368/MAX369
♦ Single-Supply Operation (+2.7V to +16.5V)
Bipolar Supply Operation (±3V to ±8V)
♦ Low Power Consumption (<300µW)
♦ Low On-Resistance, 100Ω max
♦ Guaranteed On-Resistance Match Between
Channels, 4Ω max
♦ Low Leakage, 2.5nA at +85°C
♦ TTL/CMOS-Logic Compatible
________________________Ap p lic a t io n s
______________Ord e rin g In fo rm a t io n
Battery-Operated Systems
Audio Signal Routing
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
18 Plastic DIP
18 Wide SO
Dice*
MAX382CPN
MAX382CWN
MAX382C/D
MAX382EPN
MAX382EWN
MAX382EJN
MAX382MJN
0°C to +70°C
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Automatic Test Equipment
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
18 Plastic DIP
18 Wide SO
18 CERDIP**
18 CERDIP**
Ordering Information continued on last page.
Contact factory for dice specifications.
** Contact factory for package availability.
*
__________________________________________________________P in Co n fig u ra t io n s
TOP VIEW
MAX382
LOGIC
MAX384
LOGIC
1
2
3
4
5
6
7
WR
18 RS
17 A1
1
2
3
4
5
6
7
WR
18 RS
17 A1
A0
EN
A0
EN
A2
16
15 GND
14
GND
16
V-
V-
15 V+
N01
N02
N03
N04
COM
V+
13 N05
N01A
N02A
N03A
N04A
COMA
14
N01B
13 N02B
N06
N07
N08
12
11
10
N03B
N04B
COMB
12
11
10
8
9
8
9
DIP/SO
DIP/SO
________________________________________________________________ Maxim Integrated Products
1
Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to GND
Continuous Power Dissipation (T = +70°C)
A
V+ .......................................................................-0.3V to +17V
V- ........................................................................+0.3V to -17V
V+ to V-...............................................................-0.3V to +17V
Voltage into Any Terminal (Note 1).........(V- - 2V) to (V+ + 2V) or
30mA (whichever occurs first)
Current into Any Terminal ...................................................30mA
Peak Current, Any Terminal
(pulsed at 1ms, 10% duty cycle max) ..........................100mA
Plastic DIP (derate 11.11mW/°C above +70°C) ..........889mW
Wide SO (derate 9.52mW/°C above +70°C)................762mW
CERDIP (derate 10.53mW/°C above +70°C)...............842mW
Operating Temperature Ranges
MAX38_C_ N.......................................................0°C to +70°C
MAX38_E_ N....................................................-40°C to +85°C
MAX38_MJN ..................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1: Signals on any terminal exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2/MAX384
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = +5V ±10%, V- = -5V ±10%, GND = 0V, V
= V
= 2.4V, V
= V
= 0.8V, WR = 0V, RS = 2.4V, T = T
to T
,
A_H
ENH
A_L
ENL
A
MIN
MAX
unless otherwise noted.)
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
SWITCH
Analog Signal Range
V
, V
(Note 3)
= 1mA, V
COM
V-
V+
100
125
4
V
COM NO
T
= +25°C
60
A
Channel On-Resistance
R
I
NO
= ±3.5V
= ±3.5V,
Ω
ON
T
A
= T
to T
MIN
MAX
MAX
MAX
T
A
= +25°C
On-Resistance Matching
Between Channels (Note 4)
I
= 1mA, V
NO COM
∆R
Ω
Ω
ON
V+ = 5V, V- = -5V
T
A
= T
to T
6
MIN
T
A
= +25°C
10
13
0.1
1.0
10
0.2
2.5
20
0.1
1.5
10
0.4
5
On-Resistance Flatness
(Note 5)
I
NO
= 1mA, V
= ±3V,
COM
R
FLAT(ON)
V+ = 5V, V- = -5V
T
A
= T
to T
MIN
T
A
= +25°C
-0.1
-1.0
-10
-0.2
-2.5
-20
-0.1
-1.5
-10
-0.4
-5
±
NO-Off Leakage Current
(Note 6)
V
NO
= ±4.5V, V
=
4.5V,
COM
I
C, E
M
nA
NO(OFF)
T
= T
MIN
MAX
A
V+ = 5.5V, V- = -5.5V
to T
T
A
= +25°C
V
V
NO
= ±4.5V,
±
COM
=
4.5V,
MAX382
MAX384
MAX382
MAX384
C, E
M
T
= T
MIN
MAX
A
V+ = 5.5V, V- = -5.5V
to T
COM-Off Leakage Current
(Note 6)
I
nA
COM(OFF)
T
A
= +25°C
V
V
NO
= ±4.5V,
4.5V,
COM
±
=
C, E
M
T
= T
MIN
MAX
A
V+ = 5.5V, V- = -5.5V
to T
T
A
= +25°C
C, E
M
T
= T
MIN
MAX
A
V
V
= ±4.5V,
= 4.5V,
NO
COM
to T
-40
-0.2
-2.5
-20
40
0.2
2.5
20
COM-On Leakage Current
(Note 6)
I
nA
COM(ON)
T
A
= +25°C
C, E
M
T
= T
MIN
MAX
A
to T
2
_______________________________________________________________________________________
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
2/MAX384
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +5V ±10%, V- = -5V ±10%, GND = 0V, V
= V
= 2.4V, V
= V
= 0.8V, WR = 0V, RS = 2.4V, T = T
to T
,
A_H
ENH
A_L
ENL
A
MIN
MAX
unless otherwise noted.)
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
DIGITAL LOGIC INPUT
Logic High Input Voltage
Logic Low Input Voltage
V
, V
T
= T
= T
to T
to T
2.4
V
V
A_H ENH
A
MIN
MAX
V
, V
A_L ENL
T
A
0.8
0.1
MIN
MAX
Input Current with
Input Voltage High
I
, I
V
= 2.4V, V
A_L
= 0.8V
= 0.8V
-0.1
-0.1
µA
µA
A_H ENH
A_H
Input Current with
Input Voltage Low
I
, I
V
A_H
= 2.4V, V
A_L
0.1
A_L ENL
SUPPLY
Power-Supply Range
V+, V-
I+
±2.4
-1
±8
1
V
V
= V = 0V/V+,
A
EN
Positive Supply Current
Negative Supply Current
T
= +25°C
µA
A
V+ = 5.5V, V- = -5.5V
V
= V = 0V/V+,
EN
A
I-
T
A
= T
to T
-1
1
µA
MIN
MAX
V+ = 5.5V, V- = -5.5V
AX, EN Data Hold Time
Reset Pulse Width
DYNAMIC
t
Figure 5
T
= +25°C
T = +25°C
A
100
100
ns
ns
H
A
t
RS
Figure 6, V+ = 5V
Transition Time
t
Figure 1
Figure 2
100
20
275
ns
ns
TRANS
Break-Before-Make Interval
t
T
= +25°C
= +25°C
0
OPEN
A
T
A
100
150
250
150
250
150
250
150
250
5
Enable Turn-On Time
Enable Turn-Off Time
Write Turn-On Time
Reset Turn-Off Time
t
Figure 3
Figure 3
Figure 4
Figure 6
ns
ns
ns
ns
ON(EN)
T
A
= T
to T
MIN
MAX
MAX
MAX
MAX
T
A
= +25°C
80
t
OFF(EN)
T
A
= T
to T
MIN
T
A
= +25°C
t
ON(WR)
T
A
= T
to T
MIN
T
A
= +25°C
t
OFF(RS)
T
A
= T
to T
MIN
Charge Injection (Note 3)
Off Isolation (Note 7)
V
CTE
C
= 100pF, V = 0V
T
= +25°C
T = +25°C
A
2
pC
dB
L
NO
A
V
ISO
V
EN
= 0V, R = 1kΩ, f = 100kHz
-75
L
V
V
GEN
= 2.4V, f = 100kHz,
= 1V , R = 1kΩ
p-p L
EN
Crosstalk Between Channels
V
CT
T
A
= +25°C
-92
dB
Logic Input Capacitance
NO-Off Capacitance
C
f = 1MHz
T
= +25°C
T = +25°C
A
8
pF
pF
IN
A
C
f = 1MHz, V = V
= 0V
11
40
20
54
34
NO(OFF)
EN
COM
MAX382
MAX384
MAX382
MAX384
f = 1MHz,
= V
COM-Off Capacitance
COM-On Capacitance
C
T
A
= +25°C
= +25°C
pF
pF
COM(OFF)
V
EN
= 0V
COM
f = 1MHz,
= V
C
T
A
COM(ON)
V
EN
= 0V
COM
MINIMUM INPUT TIMING REQUIREMENTS
Write Pulse Width
t
Figure 5
Figure 5
T
= +25°C
T = +25°C
A
100
100
ns
ns
W
A
AX, EN Data Setup Time
t
S
_______________________________________________________________________________________
3
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = +5V ±10%, V- = 0V, GND = 0V, V
= V
= 2.4V, V
= V
= 0.8V, WR = 0V, RS = 2.4V, T = T
to T , unless
MAX
A_H
ENH
A_L
ENL
A
MIN
otherwise noted.)
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
AX, EN Data Hold Time
Reset Pulse Width
SWITCH
t
Figure 5
T
= +25°C
= +25°C
100
100
ns
ns
H
A
T
A
t
RS
Figure 6, V+ = 5V
Analog Signal Range
V
, V
(Note 3)
V-
V+
225
280
10
V
COM NO
T
= +25°C
150
A
I
NO
= 1mA, V
= 3.5V,
COM
On-Resistance
R
Ω
ON
V+ = 4.5V
T
A
= T
to T
MIN
MAX
MAX
MAX
T
A
= +25°C
On-Resistance Matching
Between Channels (Note 4)
I
NO
= 1mA, V
= 3.5V,
COM
∆R
Ω
Ω
ON
V+ = 4.5V
T
A
= T
to T
12
MIN
2/MAX384
T
A
= +25°C
10
15
16
I
NO
= 1mA; V
= 3V, 2V, 1V;
COM
On-Resistance Flatness
R
FLAT
V+ = 5V
T
A
= T
to T
20
MIN
T
= +25°C
-0.1
-1.0
-10
-0.2
-2.5
-20
-0.2
-1.5
-10
-0.4
-5
0.1
1.0
10
A
NO-Off Leakage Current
(Note 8)
V
= 4.5V, V
= 0V,
COM
NO
I
C, E
M
nA
NO(OFF)
T
= T
MIN
MAX
A
V+ = 5.5V
to T
T
A
= +25°C
0.2
2.5
20
V
= 4.5V,
= 0V,
COM
V
MAX382
C, E
M
NO
T
= T
MIN
MAX
A
V+ = 5.5V
to T
COM-Off Leakage Current
(Note 8)
I
nA
COM(OFF)
T
A
= +25°C
0.2
1.5
10
V
= 4.5V,
= 0V,
COM
V
MAX384
MAX382
MAX384
C, E
M
NO
T
= T
MIN
MAX
A
V+ = 5.5V
to T
T
A
= +25°C
0.4
5
C, E
M
T
= T
MIN
MAX
A
V
V
= 4.5V,
= 4.5V,
NO
COM
to T
-40
-0.2
-2.5
-20
40
COM-On Leakage Current
(Note 8)
I
nA
COM(ON)
T
A
= +25°C
0.2
2.5
20
V+ = 5.5V
C, E
M
T
= T
MIN
MAX
A
to T
DIGITALLOGICINPUT
Logic High Input Voltage
Logic Low Input Voltage
V , V
T
= T
= T
to T
to T
2.4
V
V
H
ENH
A
MIN
MAX
V , V
T
A
0.8
0.1
L
ENL
MIN
MAX
Input Current with
Input Voltage High
I , I
V
= 2.4V, V = 0.8V
-0.1
-0.1
µA
µA
H
ENH
H
L
Input Current with
Input Voltage Low
I , I
V
H
= 2.4V, V = 0.8V
0.1
L
ENL
L
SUPPLY
Power-Supply Range
Positive Supply Current
Negative Supply Current
2.4
-1.0
-1.0
-1.0
-1.0
15
1.0
1.0
1.0
1.0
V
I+
I-
V
= V = 0V, V+; V+ = 5.5V; V- = 0V
µA
µA
EN
A
V
EN
= V = 0V, V+; V+ = 5.5V; V- = 0V
A
T
A
= +25°C
V
= V+, 0V; V = 0V;
A
EN
I
I
µA
GND Supply Current
GND
V+ = 5.5V; V- = 0V
T
A
= T
to T
MIN MAX
4
_______________________________________________________________________________________
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
2/MAX384
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = +5V ±10%, V- = 0V, GND = 0V, V
= V
= 2.4V, V
= V
= 0.8V, WR = 0V, RS = 2.4V, T = T
to T , unless
MAX
A_H
ENH
A_L
ENL
A
MIN
otherwise noted.)
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
DYNAMIC
Transition Time
t
Figure 1, V = 3V
NO
90
40
280
ns
ns
TRANS
Break-Before-Make Interval
t
Figure 2 (Note 3)
T
= +25°C
= +25°C
5
OPEN
A
T
A
130
200
275
200
275
200
275
200
275
Enable Turn-On Time
(Note 3)
t
Figure 3
ns
ns
ns
ns
ON(EN)
T
A
= T
to T
MIN
MAX
MAX
MAX
MAX
T
A
= +25°C
80
Enable Turn-Off Time
(Note 3)
t
Figure 3
Figure 4
Figure 4
OFF(EN)
T
A
= T
to T
MIN
T
A
= +25°C
Write Turn-On Time
(Note 3)
t
ON(WR)
T
A
= T
to T
MIN
T
A
= +25°C
Reset Turn-Off Time
(Note 3)
t
OFF(RS)
T
A
= T
to T
MIN
Figure 7, C = 100pF,
L
Charge Injection (Note 3)
V
CTE
T
A
= +25°C
1.5
5
pC
V
= 0V
NO
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +3V ±10%, V- = 0V, GND = 0V, V
= V
= 2.4V, V
= V
= 0.8V, WR = 0V, RS = 2.4V, T = T
to T , unless
MAX
A_H
ENH
A_L
ENL
A
MIN
otherwise noted.)
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
UNITS
SWITCH
Analog Signal Range
V
(Note 3)
= 1mA, V
V-
V+
V
ANALOG
T
= +25°C
230
375
425
A
I
= 1.5V,
COM
NO
On-Resistance
R
Ω
ON
V+ = 3V
T
A
= T to T
MIN MAX
DYNAMIC
Figure 1, V = 2.4V,
IN
Transition Time (Note 3)
t
T
= +25°C
= +25°C
= +25°C
230
200
75
575
500
400
ns
ns
ns
TRANS
A
V
N01
= 1.5V, V
= 0V
N08
Enable Turn-On Time
(Note 3)
Figure 3, V
= 2.4V,
INH
t
T
A
ON(EN)
V
INL
= 0V, V
= 1.5V
N01
Enable Turn-Off Time
(Note 3)
Figure 3, V
= 2.4V,
INH
t
T
A
OFF(EN)
V
INL
= 0V, V
= 1.5V
N01
Write Turn-On Time (Note 3)
Reset Turn-Off Time (Note 3)
t
Figure 4
Figure 4
T
= +25°C
= +25°C
200
75
500
400
ns
ns
ON(WR)
A
t
T
A
OFF(RS)
Charge Injection
(Note 3)
Figure 7, C = 100pF,
L
V
CTE
T
A
= +25°C
1
5
pC
V
= 0V
NO
Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in this data sheet.
Note 3: Guaranteed by design.
Note 4: ∆R
= R (max) - R (min).
ON ON
ON
Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal
ranges, i.e., V = 3V to 0V and 0V to -3V.
NO
Note 6: Leakage parameters are 100% tested at maximum rated hot operating temperature, and guaranteed by correlation at +25°C.
Note 7: Worst-case isolation is on channel 4 because of its proximity to the COM pin. Off isolation = 20log V
/V , V
= output, V = input to off switch.
COM NO COM NO
Note 8: Leakage testing at single supply is guaranteed by correlation testing with dual supplies.
_______________________________________________________________________________________
5
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(T = +25°C, unless otherwise noted.)
A
ON-RESISTANCE vs. V
COM
ON-RESISTANCE vs. V
COM
AND TEMPERATURE
(DUAL SUPPLIES)
ON-RESISTANCE vs. V
COM
(SINGLE SUPPLY)
(DUAL SUPPLIES)
300
275
110
110
V+ = 5V
V- = -5V
V- = 0V
100
90
100
90
250
225
V± = ±3V
T
= +125°C
= +85°C
A
80
70
80
70
200
175
150
125
T
A
V+ = 3V
60
50
60
50
T
A
= +25°C
= -55°C
V± = ±5V
100
75
V+ = 5V
T
A
40
30
40
30
2/MAX384
50
-5 -4 -3 -2 -1
0
1
2
3
4
5
-5 -4 -3 -2 -1
0
1
2
3
4
5
0
1
2
3
4
5
V
COM
(V)
V
COM
(V)
V
COM
(V)
ON-RESISTANCE vs. V
COM
OFF-LEAKAGE vs.
TEMPERATURE
ON-LEAKAGE vs.
TEMPERATURE
AND TEMPERATURE
(SINGLE SUPPLY)
180
160
1000
100
10,000
1000
100
V+ = 5.5V
V- = -5.5V
V+ = 5.5V
V- = -5.5V
V+ = 5V
V- = 0V
T
= +125°C
A
140
120
100
80
T
= +85°C
A
T
= +25°C
A
10
1
10
1
T
= -55°C
A
60
40
0.1
0.1
0
1
2
3
(V)
4
5
-50 -25
0
25 50
75 100 125
-50 -25
0
25 50
75 100 125
TEMPERATURE (°C)
TEMPERATURE (°C)
V
COM
SUPPLY CURRENT vs.
TEMPERATURE
CHARGE INJECTION vs. V
COM
5
0
10
V+ = 5V
V- = -5V
= V = 0V, 5V
V
EN
A
I+
I-
1
V+ = 5V
V- = 0V
V+ = 5V
V- = -5V
-5
0.1
-5 -4 -3 -2 -1
0
1
2
3
4
5
-50 -25
0
25 50
75 100 125
V
COM
(V)
TEMPERATURE (°C)
6
_______________________________________________________________________________________
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
2/MAX384
______________________________________________________________P in De s c rip t io n
PIN
NAME*
FUNCTION
MAX382
MAX384
1
1
WR
A0, A2, A1
A0, A1
WRITE Logic Input
2, 16, 17
—
Address Logic Inputs (see Truth Tables at end of data sheet)
Address Logic Inputs (see Truth Tables at end of data sheet)
Enable Logic Input (see Truth Tables at end of data sheet)
Negative Supply Voltage Input. Connect to GND for single-supply operation.
Analog Signal Inputs—bidirectional
—
3
2, 17
3
EN
4
4
V-
5–8
—
—
NO1–NO4
NO1A–NO4A
COM
5–8
—
Analog Signal Inputs—bidirectional
9
Analog Signal Output—bidirectional
—
9, 10
—
COMA, COMB Analog Signal Outputs—bidirectional
10–13
—
NO8–NO5
NO4B–NO1B
V+
Analog Signal Inputs—bidirectional
Analog Signal Inputs—bidirectional
Positive Supply Voltage Input
Ground
11–14
15
14
15
18
16
GND
18
RS
RESET Logic Input
*Analog inputs and outputs are names of convenience only. Inputs and outputs are identical and interchangeable.
When the WR goes high, the previous BCD address
input is latched and held in that state indefinitely.
__________Ap p lic a t io n s In fo rm a t io n
The internal structures of the MAX382/MAX384 include
translators for the A2/A1/EN/WR/RS digital inputs, latch-
es, and a decode section for channel selection (see
Truth Tables). The analog-signal switches consist of
parallel combinations of N and P MOSFETs.
RS turns off all channels when it is low. All switches stay
off until RS and EN are high and WR is low.
The MAX382/MAX384 work with both single and dual
supplies and function over the +2.4V to +16V single-
supply range. For example, with a single +5V power
supply, analog signals in the 0V to +5V range can be
switched normally. If negative signals around 0V are
expected, a negative supply is needed.
WRITE (WR) and RESET (RS) strobes are provided for
interfacing with µP-bus lines, alleviating the need for the
µP to provide constant address inputs to the mux to
hold a particular channel (Figures 2–7).
The EN latch allows all switches to be turned off under
program control. This is useful when two or more are
cascaded to build 16-line and larger analog-signal mul-
tiplexers.
When the WR strobe is in the low state (less than 0.8V)
and the RS strobe is in the high state (greater than
2.4V), the muxes are in the transparent mode—they
a c t s imila r to nonla tc hing d e vic e s , s uc h a s the
MAX398/MAX399.
_______________________________________________________________________________________
7
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
______________________________________________Te s t Circ u it s /Tim in g Dia g ra m s
+5V
V+
NO1
RS
+2.4V
±3V
EN
NO2–NO7
A0
A1
A2
±
MAX382
NO8
3V
t
< 20ns
R
LOGIC
INPUT
+3V
0V
V
OUT
COM
t < 20ns
F
50%
GND WR
V-
35pF
50Ω
300Ω
-5V
V
NO_
+5V
V+
90%
SWITCH
OUTPUT
V
OUT
2/MAX384
±3V
NO1B
+2.4V
RS
0V
MAX384
EN
90%
NO1A–NO4A
COMA, N02B–N03B
NO4B
V
NO_
A0
A1
±
3V
t
TRANS
t
TRANS
V
OUT
COMB
WR
GND
V-
35pF
50Ω
300Ω
-5V
Figure 1. Transition Time
+5V
V+
N01
A2
+5V
V
AH
= +3V
0V
N02–
N08
V
A
V
A
A1
A0
MAX382*
50Ω
COM
V
OUT
V
OUT
+2.4V
EN
RS
50%
50%
35pF
V-
1k
WR GND
t
OPEN
-5V
*SIMILAR CONNECTION FOR MAX384
Figure 2. Break-Before-Make Interval (t
)
OPEN
8
_______________________________________________________________________________________
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
2/MAX384
+5V
V+
N01
A2
+10V
V
AH
= +3V
50%
50%
N02–
N03
V
EN
0V
A1
A0
MAX382*
COM,
COMB
V
OUT
0.9 V
EN
RS
O
V
EN
+2.4V
V
OUT
0V
35pF
V-
1k
WR GND
50Ω
t
OFF(EN)
t
ON(EN)
-5V
*SIMILAR CONNECTION FOR MAX384
Figure 3. Enable Delay (t
, t
)
ON(EN) OFF(EN)
+5V
V+
N01 or
+2.4V
EN
+5V
N01B
V
WR
A0, A1,
(A2)
ALL
N0_
+3V
+1.5V
0V
50%
MAX382*
t
ON
(WR)
+2.4V
RS
COM,
V
OUT
LOGIC INPUT
COMB
WR
0.2V
O
GND
V-
1k
35pF
V
OUT
0V
-5V
DEVICE MUST BE RESET PRIOR TO APPLYING WR PULSE
*SIMILAR CONNECTION FOR MAX384
Figure 4. Write Turn-On Time (t
)
ON(WR)
3V
3V
WR
50%
50%
0V
RS
0V
t
RS
t
W
t
(RS)
t
OFF
H
t
S
SWITCH
OUTPUT
V
O
3V
0V
A0, A1, (A2)
EN
20%
80%
80%
Figure 5. Write, Setup, and Hold Timing (t , t
t )
H
W
S,
_______________________________________________________________________________________
9
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
+5V
V+
+2.4V
EN
N01
+5V
RS +3V
+1.5V
0V
MAX382
N01–
N08
50%
A0, A1,
(A2)
t
(RS)
OFF
V
OUT
RS
COM, COMB
V
V
O
OUT
0.8V
O
LOGIC
INPUT
WR
GND
V-
1k
35pF
-5V
Figure 6. Reset Turn-Off Time (t
)
OFF(RS)
2/MAX384
+5V
V+
MAX382
MAX384
A0, A1, (A2)
N0_
RS
COM
+2.4V
ON
OFF
EN
OFF
R
GEN
V
OUT
∆V
OUT
V
OUT
C
100pF
L
IN
3V
V
GEN
GND
WR
V-
∆V IS THE MEASURED VOLTAGE ERROR DUE TO
CHARGE INJECTION. THE CHARGE IN COULOMBS IS Q = C x ∆V
OUT
-5V
L
O
Figure 7. Charge Injection (V
)
CTE
Op e ra t io n w it h S u p p ly Vo lt a g e s
Ot h e r t h a n ±5 V
Ove rvo lt a g e P ro t e c t io n
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings, because stresses beyond the listed rat-
ings can cause permanent damage to the devices.
Always sequence V+ on first, then V-, followed by the
logic inputs, NO, or COM. If power-supply sequencing
is not possible, add two small signal diodes (D1, D2) in
s e rie s with s up p ly p ins for ove rvolta g e p rote c tion
(Figure 8). Adding diodes reduces the analog signal
range to one diode drop below V+ and one diode drop
above V-, but does not affect the devices’ low switch
resistance and low leakage characteristics. Device
operation is unchanged, and the difference between V+
and V- should not exceed 17V. These protection diodes
are not recommended when using a single supply.
Using supply voltages less than ±5V reduces the analog
signal range. The MAX382/MAX384 muxes operate with
±3V to ±8V bipolar supplies or with a +2.7V to +16.5V
single supply. Connect V- to GND when operating with a
single supply. Both devices can also operate with unbal-
anced supplies, such as +10V and -5V. The Typical
Operating Characteristics graphs show typical on-resis-
tance with ±3V, ±5V, +3V and +5V supplies. (Switching
times increase by a factor of two or more for operation at
+5V or below.)
10 ______________________________________________________________________________________
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
2/MAX384
+5V
D1
V+
MAX382
MAX384
*
*
*
*
NO
COM
V-
D2
* INTERNAL PROTECTION DIODES
-5V
Figure 8. Overvoltage Protection Using External Blocking Diodes
__________________________________________Fu n c t io n a l Dia g ra m s /Tru t h Ta b le s
MAX384 DIFFERENTIAL 4-CHANNEL MULTIPLEXER
MAX382 8-CHANNEL SINGLE-ENDED MULTIPLEXER
V+
V-
GND
V+
V-
GND
NO1
NO2
NO3
NO4
NO1A
NO2A
NO3A
NO4A
COMA
COMB
COM
NO5
NO6
NO7
NO8
NO1B
NO2B
NO3B
NO4B
DECODERS / DRIVERS
LATCHES
DECODERS / DRIVERS
LATCHES
WR
RS
WR
RS
A2
A1
EN
A0
EN
A1
A0
EN
ON SWITCH
A2
A1
A0
X
WR RS
A1
A0
X
EN
X
WR RS
ON SWITCH
Latching
X
Latching
X
Maintains previous
switch condition
Maintains previous
switch condition
X
X
X
X
1
1
Reset
X
Reset
X
NONE
(latches cleared)
NONE
(latches cleared)
X
X
0
X
X
X
0
Transparent Operation
Transparent Operation
X
0
0
0
0
1
1
1
1
X
0
0
1
1
0
0
1
1
X
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
NONE
X
0
0
1
1
X
0
1
0
1
0
1
1
1
1
0
0
0
0
0
1
1
1
1
1
NONE
1
2
3
4
5
6
7
8
1
2
3
4
LOGIC "0" = V ≤ 0.8V, LOGIC "1" V ≥ 2.4V
AL
AH
______________________________________________________________________________________ 11
Lo w -Vo lt a g e , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l
Mu lt ip le x e rs w it h La t c h a b le In p u t s
_Ord e rin g In fo rm a t io n (c o n t in u e d )
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
18 Plastic DIP
18 Wide SO
Dice*
MAX384CPN
MAX384CWN
MAX384C/D
MAX384EPN
MAX384EWN
MAX384EJN
MAX384MJN
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
18 Plastic DIP
18 Wide SO
18 CERDIP**
18 CERDIP**
*
Contact factory for dice specifications.
** Contact factory for package availability.
__________________________________________________________Ch ip To p o g ra p h ie s
2/MAX384
MAX384
MAX382
AO WR
RS A1 N. C.
AO WR
RS A1
A2
EN
V-
EN
V-
GND
V+
GND
V+
0. 116"
0. 116"
NO1A
NO1
(2. 95mm)
(2. 95mm)
NO1B
NO2B
N. C.
NO5
NO2A
NO3A
NO2
NO3
NO3B
NO4B
NO6
NO7
NO4A
NO4
COM NO8
COM NO8
COMA COMB
COM
NO8
0. 082"
(2. 08mm)
0. 082"
(2. 08mm)
TRANSISTOR COUNT: 165
SUBSTRATE CONNECTED TO V+
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12 __________________Ma x im In t e g ra t e d P ro d u c t s , 1 2 0 S a n Ga b rie l Drive , S u n n yva le , CA 9 4 0 8 6 (4 0 8 ) 7 3 7 -7 6 0 0
© 1995 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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