Maxim MAX399 Precision, 8-channel/dual 4-channel, low-voltage, cmos analog multiplexer Datasheet

19-0299; Rev. 2; 7/96
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
________________________Applications
Sample-and-Hold Circuits
Automatic Test Equipment
Heads-Up Displays
Guidance and Control Systems
Military Radios
Communications Systems
Battery-Operated Systems
PBX, PABX
Audio Signal Routing
Low-Voltage Data Acquisition Systems
____________________________Features
♦ Pin Compatible with Industry-Standard
DG408/DG409/DG508A/DG509A
♦ Guaranteed On-Resistance Match
Between Channels (<6Ω )
♦ Low On-Resistance (<100Ω )
♦ Guaranteed Flat On-Resistance over Signal
Range (<11Ω)
♦ Guaranteed Low Charge Injection (<5pC)
♦ NO-Off Leakage Current <1nA at +85°C
♦ COM-Off Leakage Current <2.5nA at +85°C
♦ Electrostatic Discharge Protection >2000V
♦ Single-Supply Operation (+3V to +15V)
Bipolar-Supply Operation (±3V to ±8V)
♦ Low Power Consumption (<300µW)
♦ Rail-to-Rail Signal Handling
♦ TTL/CMOS-Logic Compatible
______________Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
MAX398CPE
0°C to +70°C
16 Plastic DIP
MAX398CSE
MAX398C/D
MAX398EPE
MAX398ESE
MAX398EJE
MAX398MJE
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
16 Narrow SO
Dice*
16 Plastic DIP
16 Narrow SO
16 CERDIP**
16 CERDIP**
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
** Contact factory for package availability.
__________________________________________________________Pin Configurations
TOP VIEW
A0 1
16 A1
A0 1
16 A1
EN 2
15 A2
EN 2
15 GND
V- 3
14 GND
V- 3
14 V+
N01 4
13 V+
N01A 4
N02 5
12 NO5
N02A 5
12 NO2B
N03 6
11 NO6
N03A 6
11 NO3B
N04 7
10 NO7
N04A 7
10 NO4B
NO8
COMA 8
MAX398
COM 8
9
DIP/SO
MAX399
13 NO1B
9
COMB
DIP/SO
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MAX398/MAX399
_______________General Description
The MAX398/MAX399 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less
than 100Ω), which is matched to within 6Ω between
channels and remains flat over the specified analog signal range (11Ω max). They also offer low leakage over
temperature (NO-off leakage current less than 2.5nA at
+85°C) and fast switching speeds (transition time less
than 250ns). The MAX398 is an 8-channel device, and
the MAX399 is a dual 4-channel device.
The MAX398/MAX399 are fabricated with Maxim’s lowvoltage silicon-gate process. Design improvements
yield extremely low charge injection (less than 5pC) and
guarantee electrostatic discharge protection greater than
2000V.
These muxes operate with a single +3V to +15V supply or
bipolar ±3V to ±8V supplies, while retaining CMOS-logic
input compatibility and fast switching. CMOS inputs provide reduced input loading. The MAX398/MAX399 are
pin compatible with the industry-standard DG408,
DG409, DG508A, and DG509A.
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to GND
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) ............................40mA
Continuous Power Dissipation (TA = +70°C)
Plastic DIP (derate 7.5mW/°C above +70°C) ..............470mW
Narrow SO (derate 8.7mW/°C above +70°C) ..............696mW
CERDIP (derate 10.0mW/°C above +70°C) .................900mW
Operating Temperature Ranges
MAX39_C_ _ .......................................................0°C to +70°C
MAX39_E_ _.....................................................-40°C to +85°C
MAX39_MJE ..................................................-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.
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = +5V ±10%, V- = -5V ±10%, GND = 0V, VAH = VENH = +2.4V, VAL = VENL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
MIN
CONDITIONS
TYP
MAX
(Note 2)
UNITS
SWITCH
Analog Signal Range
VCOM, VNO (Note 3)
VTA = +25°C
V+
60
100
Channel On-Resistance
RON
INO = 1mA, VCOM = ±3.5V
RON Matching Between
Channels (Note 4)
∆RON
INO = 1mA, VCOM = ±3.5V,
V+ = 5V, V- = -5V
TA = +25°C
6
TA = TMIN to TMAX
8
On-Resistance Flatness
(Note 5)
RFLAT(ON)
INO = 1mA, VCOM = ±3V,
V+ = 5V, V- = -5V
TA = +25°C
11
TA = TMIN to TMAX
14
NO-Off Leakage Current
(Note 6)
INO(OFF)
±
VNO = ±4.5V, VCOM = 4.5V,
V+ = 5.5V, V- = -5.5V
TA = TMIN to TMAX
TA = +25°C
TA = TMIN
to TMAX
TA = +25°C
VCOM = ±4.5V,
VNO = 4.5V,
MAX398 TA = TMIN
V+ = 5.5V, V- = -5.5V
to TMAX
±
COM-Off Leakage Current
(Note 6)
ICOM(OFF)
VCOM = ±4.5V,
VNO = 4.5V,
MAX399 TA = TMIN
V+ = 5.5V, V- = -5.5V
to TMAX
-0.1
0.1
-1.0
1.0
M
-10
10
-0.2
0.2
C, E
-2.5
2.5
M
-20
20
-0.1
0.1
C, E
-1.5
1.5
M
-10
10
-0.4
0.4
TA = +25°C
COM-On Leakage Current
(Note 6)
ICOM(ON)
VCOM = ±4.5V,
VNO = 4.5V,
MAX398 TA = TMIN
to TMAX
2
C, E
-5
5
M
-40
40
-0.2
0.2
C, E
-2.5
2.5
M
-20
20
TA = +25°C
MAX399 TA = TMIN
to TMAX
125
C, E
TA = +25°C
±
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
_______________________________________________________________________________________
V
Ω
Ω
Ω
nA
nA
nA
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
(V+ = +5V ±10%, V- = -5V ±10%, GND = 0V, VAH = VENH = +2.4V, VAL = VENL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
(Note 2)
UNITS
DIGITAL LOGIC INPUT
Logic High Input Voltage
VAH, VENH
TA = TMIN to TMAX
Logic Low Input Voltage
VAL, VENL
TA = TMIN to TMAX
Input Current with
Input Voltage High
IAH, IENH
VA = VEN = 2.4V
Input Current with
Input Voltage Low
IAL, IENL
VA = VEN = 0.8V
2.4
V
0.8
V
-0.1
0.1
µA
-0.1
0.1
µA
±3
±8
V
SUPPLY
Power-Supply Range
Positive Supply Current
I+
VEN = VA = 0V/V+,
V+ = 5.5V, V- = -5.5V
Negative Supply Current
I-
VEN = VA = 0V/V+,
V+ = 5.5V, V- = -5.5V
IGND
VEN = VA = 0V/V+,
V+ = 5.5V, V- = -5.5V
Ground Current
TA = +25°C
-1
1
µA
TA = TMIN to TMAX
-1
1
µA
TA = +25°C
-1
1
TA = TMIN to TMAX
-1
1
µA
DYNAMIC
Transition Time
tTRANS
Figure1
Break-Before-Make Interval
tOPEN
Figure 2
Enable Turn-On Time
tON(EN)
Figure 3
Enable Turn-Off Time
tOFF(EN)
Figure 3
Charge Injection (Note 3)
Q
150
TA = +25°C
TA = +25°C
0
40
60
TA = TMIN to TMAX
TA = +25°C
CL = 10nF, VS = 0V, RS = 0Ω
TA = +25°C
ns
150
250
40
TA = TMIN to TMAX
150
200
2
ns
5
ns
ns
pC
Off Isolation (Note 7)
VEN = 0V, RL = 1kΩ, f = 100kHz TA = +25°C
-75
dB
Crosstalk Between Channels
VCT
VEN = 2.4V, f = 100kHz,
VGEN = 1Vp-p, RL = 1kΩ
TA = +25°C
-92
dB
CIN
f = 1MHz
TA = +25°C
8
pF
f = 1MHz, VEN = VD = 0V
TA = +25°C
11
pF
Logic Input Capacitance
NO-Off Capacitance
CNO(OFF)
COM-Off Capacitance
CCOM(OFF)
f = 1MHz,
VEN = VD = 0V
MAX398
COM-On Capacitance
CCOM(ON)
f = 1MHz,
VEN = VD = 0V
MAX398
MAX399
MAX399
TA = +25°C
TA = +25°C
40
20
54
34
pF
pF
_______________________________________________________________________________________
3
MAX398/MAX399
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
ELECTRICAL CHARACTERISTICS—Single 5V
(V+ = 5V ±10%, V- = 0V, GND = 0V, VAH = VENH = +2.4V, VAL = VENL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
MIN
CONDITIONS
TYP
MAX
(Note 2)
UNITS
SWITCH
Analog Signal Range
VCOM, VNO (Note 3)
V-
V+
RON
INO = 1mA, VCOM = 3.5V,
V+ = 4.5V
TA = +25°C
TA = TMIN to TMAX
280
RON Matching Between
Channels (Note 4)
∆RON
INO = 1mA, VCOM = 3.5V,
V+ = 4.5V
TA = +25°C
11
TA = TMIN to TMAX
13
On-Resistance Flatness
RFLAT
INO = 1mA; VCOM = 3V, 2V, 1V; TA = +25°C
V+ = 5V
TA = TMIN to TMAX
NO-Off Leakage Current
(Note 8)
INO(OFF)
On-Resistance
COM-Off Leakage Current
(Note 8)
VNO = 4.5V, VCOM = 0V,
V+ = 5.5V
VCOM = 4.5V,
VNO = 0V,
V+ = 5.5V
ICOM(OFF)
VCOM = 4.5V,
VNO = 0V,
V+ = 5.5V
150
TA = +25°C
TA = TMIN
to TMAX
ICOM(ON)
VCOM = 4.5V,
VNO = 4.5V,
V+ = 5.5V
MAX398 TA = TMIN
to TMAX
0.1
1.0
M
-10
10
-0.2
0.2
C, E
-2.5
2.5
M
-20
20
-0.2
0.2
C, E
-1.5
1.5
M
-10
10
-0.4
0.4
C, E
-5
5
M
-40
40
-0.2
0.2
C, E
-2.5
2.5
M
-20
20
TA = +25°C
MAX399 TA = TMIN
to TMAX
22
-1.0
TA = +25°C
COM-On Leakage Current
(Note 8)
18
15
-0.1
TA = +25°C
MAX399 TA = TMIN
to TMAX
10
C, E
TA = +25°C
MAX398 TA = TMIN
to TMAX
225
V
Ω
Ω
Ω
nA
nA
nA
DIGITAL LOGIC INPUT
Logic High Input Voltage
VAH, VENH
TA = TMIN to TMAX
Logic Low Input Voltage
VAL, VENL
TA = TMIN to TMAX
Input Current with
Input Voltage High
IAH, IENH
VA = VEN = 2.4V
Input Current with
Input Voltage Low
IAL, IENL
2.4
V
0.8
V
-0.1
0.1
µA
VA = 0V
VEN = 0.8V
-0.1
0.1
µA
SUPPLY
Power-Supply Range
3
15
V
Positive Supply Current
I+
VEN = VA = 0V, V+; V+ = 5.5V; V- = 0V
-1.0
1.0
µA
Negative Supply Current
I-
VEN = VA = 0V, V+; V+ = 5.5V; V- = 0V
µA
IGND Supply Current
4
IGND
VEN = V+, 0V; VA = 0V;
V+ = 5.5V; V- = 0V
-1.0
1.0
TA = +25°C
-1.0
1.0
TA = TMIN to TMAX
-1.0
1.0
_______________________________________________________________________________________
µA
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
(V+ = 5V ±10%, V- = 0V, GND = 0V, VAH = VENH = +2.4V, VAL = VENL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
(Note 2)
UNITS
DYNAMIC
Transition Time
tTRANS
Break-Before-Make Interval
tOPEN
Enable Turn-On Time
tON(EN)
Enable Turn-Off Time
tOFF(EN)
Charge Injection (Note 3)
Q
VNO = 3V
90
TA = +25°C
10
TA = +25°C
90
TA = TMIN to TMAX
50
TA = TMIN to TMAX
125
200
TA = +25°C
1.5
ns
ns
200
275
TA = +25°C
CL = 10nF, VS = 0V, RS = 0Ω
245
40
5
ns
ns
pC
ELECTRICAL CHARACTERISTICS—Single 3V
(V+ = 3V ±10%, V- = 0V, GND = 0V, VAH = VENH = +2.4V, VAL = VENL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
(Note 2)
UNITS
SWITCH
Analog Signal Range
On-Resistance
VANALOG
RON
(Note 3)
INO = 1mA, VCOM = 1.5V,
V+ = 3V
VTA = +25°C
V+
230
TA = TMIN to TMAX
375
425
V
Ω
DYNAMIC
Transition Time (Note 3)
tTRANS
Figure 1, VIN = 2.4V,
VN01 = 1.5V, VN08 = 0V
TA = +25°C
230
575
ns
Enable Turn-On Time (Note 3)
tON(EN)
Figure 3, VINH = 2.4V,
VINL = 0V, VN01 = 1.5V
TA = +25°C
200
500
ns
Enable Turn-Off Time (Note 3)
tOFF(EN)
Figure 3, VINH = 2.4V,
VINL = 0V, VN01 = 1.5V
TA = +25°C
75
400
ns
CL = 10nF, VS = 0V, RS = 0Ω
TA = +25°C
1
5
pC
Charge Injection (Note 3)
Q
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: ∆RON = RONMAX - RONMIN.
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., VNO = 3V to 0V and 0V to -3V.
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 VCOM/VNO, VCOM = output,
VNO = input to off switch.
Note 8: Leakage testing at single supply is guaranteed by correlation testing with dual supplies.
_______________________________________________________________________________________
5
MAX398/MAX399
ELECTRICAL CHARACTERISTICS—Single 5V (continued)
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
ON-RESISTANCE vs. VCOM
AND TEMPERATURE
(DUAL SUPPLIES)
V+ = 5V
V- = -5V
100
250
RON (Ω)
70
60
V± = ±5V
80
TA = +125°C
70
TA = +85°C
60
TA = +25°C
RON (Ω)
225
V± = ±3V
80
-5 -4 -3 -2 -1
1
2
3
4
0
1
2
3
4
5
0
2
1
3
4
VCOM (V)
ON-RESISTANCE vs. VCOM
AND TEMPERATURE
(SINGLE SUPPLY)
OFF-LEAKAGE vs.
TEMPERATURE
ON-LEAKAGE vs.
TEMPERATURE
TA = +125°C
10,000
MAX398/9 TOC5
1000
V+ = 5.5V
V- = -5.5V
120
TA = +25°C
100
80
TA = -55°C
ON-LEAKAGE (pA)
OFF-LEAKAGE (pA)
TA = +85°C
V+ = 5.5V
V- = -5.5V
1000
100
140
10
1
5
MAX398/9 TOC6
VCOM (V)
V+ = 5V
V- = 0V
160
50
-5 -4 -3 -2 -1
5
V+ = 5V
VCOM (V)
MAX398/9 TOC4
180
0
V+ = 3V
150
75
30
30
175
100
TA = -55°C
40
40
200
125
50
50
V- = 0V
275
90
90
RON (Ω)
300
MAX398/9 TOC3
110
MAX398/9 TOC1
110
100
ON-RESISTANCE vs. VCOM
(SINGLE SUPPLY)
MAX398/9 TOC2
ON-RESISTANCE vs. VCOM
(DUAL SUPPLIES)
RON (Ω)
100
10
1
60
40
0.1
0.1
2
1
3
4
-50
5
VCOM (V)
-25
0
25 50
75
TEMPERATURE (°C)
100
-50
125
-25
0
25 50
75
TEMPERATURE (°C)
SUPPLY CURRENT vs.
TEMPERATURE
CHARGE INJECTION vs. VCOM
10
MAX398/9 TOC7
5
MAX398/9 TOC7
0
V+ = 5V
V- = -5V
VEN = VA = 0V, 5V
I+
V+ = 5V
V- = 0V
I+, I- (nA)
Qj (pC)
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
0
1
I-
V+ = 5V
V- = -5V
-5
0.1
-5 -4 -3 -2 -1
0
1
VCOM (V)
6
2
3
4
5
-50
-25
0
25 50
75
TEMPERATURE (°C)
_______________________________________________________________________________________
100
125
100
125
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
PIN
MAX398
MAX399
NAME
FUNCTION
1, 15, 16
—
A0, A2, A1
Address Inputs
—
1, 16
A0, A1
Address Inputs
2
2
EN
Enable Input, connect to V+ if not used
Negative Supply Voltage Input
3
3
V-
4–7
—
NO1–NO4
Analog Inputs—bidirectional
—
4–7
NO1A–NO4A
Analog Inputs—bidirectional
8
—
COM
Analog Output—bidirectional
—
8, 9
COMA, COMB
Analog Outputs—bidirectional
9–12
—
NO8–NO5
Analog Inputs—bidirectional
—
10–13
NO4B–NO1B
Analog Inputs—bidirectional
13
14
V+
Positive Supply Voltage Input
14
15
GND
Ground
_______________________________________________________________________________________
7
MAX398/MAX399
______________________________________________________________Pin Description
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
__________Applications Information
+5V
Operation with Supply Voltages
Other than ±5V
D1
V+
Using supply voltages less than ±5V reduces the analog
signal range. The MAX398/MAX399 muxes operate with
±3V to ±8V bipolar supplies or with a +3V to +15V single
supply. Connect V- to GND when operating with a single
supply. Both device types can also operate with unbalanced supplies, such as +10V and -5V. The Typical
Operating Characteristics graphs show typical on-resistance with ±3V, ±5V, +3V and +5V supplies. (Switching
times increase by a factor of two or more for operation at
5V.)
*
*
*
*
NO
COM
VD2
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maximum ratings, because stresses beyond the listed ratings 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
series with supply pins for overvoltage protection
(Figure 1). Adding diodes reduces the analog signal
range to one diode drop below V+ and one diode drop
MAX398
MAX399
* INTERNAL PROTECTION DIODES
-5V
Figure 1. Overvoltage Protection Using External Blocking Diodes
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.
______________________________________________Test Circuits/Timing Diagrams
+5V
V+
NO1
A2
A1
+5V
NO2-NO7
A0
MAX398
VEN
NO8
EN
-5V
COM
GND
VOUT
V-
50Ω
35pF
LOGIC
INPUT
VEN
300Ω
+5V
-5V
50%
0V
VNO1
SWITCH
OUTPUT
VOUT
V+
NO1B
A1
+5V
90%
0V
A0
90%
NO1A-NO4A
VEN
MAX399
EN
GND
VNO8
NO4B
-5V
tTRANS
COMB
V-
50Ω
tR < 20ns
tF < 20ns
+3V
VOUT
300Ω
ON
35pF
-5V
Figure 2. Transition Time
8
_______________________________________________________________________________________
tTRANS
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
+5V
VEN
V+
EN
NO1
+5V
NO2-NO8
A0
MAX398
A1
A2
COM
GND
50Ω
VOUT
V-
35pF
1k
LOGIC
INPUT
VEN
-5V
V+
EN
tOFF(EN)
NO1B
10%
+5V
90%
MAX399
A1
COMB
V-
GND
50Ω
0V
tON(EN)
SWITCH
OUTPUT
VOUT
NO1A-NO4A
NO2B-NO4B,
COMA
A0
50%
0V
+5V
VEN
tR < 20ns
tF < 20ns
+3V
VOUT
35pF
1k
-5V
Figure 3. Enable Switching Time
+5V
VEN
+2.4V
V+
EN
NO1-NO8
LOGIC
INPUT
VA
+5V
tR < 20ns
tF < 20ns
+3V
50%
0V
A0
A1
VA
+5V
MAX398
80%
A2
COM
GND
VOUT
V-
35pF
300Ω
50Ω
SWITCH
OUTPUT
VOUT
0V
tOPEN
-5V
Figure 4. Break-Before-Make Interval
_______________________________________________________________________________________
9
MAX398/MAX399
_________________________________Test Circuits/Timing Diagrams (continued)
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
_________________________________Test Circuits/Timing Diagrams (continued)
+5V
RS
V+
NO
VEN
LOGIC
INPUT
VEN
EN
VS
MAX398
A0
CHANNEL
SELECT
COM
+3V
OFF
ON
OFF
0V
VOUT
A1
A2
CL = 1000nF
GND
V-
∆VOUT
VOUT
∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
-5V
Q = ∆VOUT x CL
Figure 5. Charge Injection
+5V
NO1
VIN
RS = 50Ω
10nF
+5V
V+
NO8
NO1
MAX398
R = 1kΩ
VIN
RL = 1kΩ
GND EN
MAX398
COM
A0
RG = 50Ω
A1
A2
VOUT
V+
NO2
NO8
COM
A0
A1
A2
V-
10nF
10nF
RL = 1kΩ
GND EN
V-
10nF
-5V
OFF ISOLATION = 20log
-5V
VOUT
CROSSTALK = 20log
VIN
Figure 6. Off Isolation
Figure 7. Crosstalk
+5V
V+
A2
CHANNEL
SELECT
A1
NO1
NO8
MAX398
A0
GND
EN
V-
1MHz
CAPACITANCE
ANALYZER
COM
f = 1MHz
-5V
Figure 8. NO/COM Capacitance
10
VOUT
______________________________________________________________________________________
VOUT
VIN
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
MAX398
V+
V-
GND
MAX399
NO1
NO1A
NO2
NO3
NO2A
NO3A
NO4
COM
V-
GND
COMA
NO4A
NO5
NO1B
NO6
NO7
NO2B
NO3B
NO8
V+
COMB
NO4B
DECODERS / DRIVERS
DECODERS / DRIVERS
A0
A1
A2
EN
A0
A1
MAX398
EN
MAX399
A2
A1
A0
EN
ON SWITCH
A1
A0
EN
ON SWITCH
X
X
X
0
NONE
X
X
0
NONE
0
0
0
1
1
0
0
1
1
0
0
1
1
2
0
1
1
2
0
1
0
1
3
1
0
1
3
0
1
1
1
4
1
1
1
4
1
0
0
1
5
1
0
1
1
6
1
1
0
1
7
1
1
1
1
8
LOGIC "O" VAL ≤ +0.8 V, LOGIC "1" VAH ≥ +2.4 V
______________________________________________________________________________________
11
MAX398/MAX399
__________________________________________Functional Diagrams/Truth Tables
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
_Ordering Information (continued)
PART
TEMP. RANGE
MAX399CPE
0°C to +70°C
16 Plastic DIP
PIN-PACKAGE
MAX399CSE
MAX399C/D
MAX399EPE
MAX399ESE
MAX399EJE
MAX399MJE
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
16 Narrow SO
Dice*
16 Plastic DIP
16 Narrow SO
16 CERDIP**
16 CERDIP**
* Contact factory for dice specifications.
** Contact factory for package availability.
__________________________________________________________Chip Topographies
MAX398
EN A0
A1 A2
MAX399
EN A0
GND
V-
A1 N.C. GND
VV+
V+
NO1
NO1A
NO5
NO6
NO1B
0.102"
(2.59mm)
NO2
NO3
N.C.
NO2B
NO2A
NO3A
0.102"
(2.59mm)
NO3B
NO7
NO4B
NO4A
NO4
COM NO8
COMA COMB
0.080"
(2.03mm)
0.080"
(2.03mm)
TRANSISTOR COUNT: 161
TRANSISTOR COUNT: 161
SUBSTRATE CONNECTED TO V+
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 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 1996 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.