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MAX4540
Technical data
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MAXIM MAX4539, MAX4540 Technical data

General Description
The MAX4539/MAX4540 low-voltage, CMOS 8-channel (MAX4539) and dual 4-channel (MAX4540) multiplexers are ideal for precision ADC calibration and system self­monitoring applications. These calibration multiplexers (cal-muxes) have precision resistor-dividers to generate accurate voltage ratios from an input reference voltage. The reference ratios include 15/4096 and 4081/4096 of the external reference voltage, accurate to 15 bits, and 1/2V+ and 5/8(V+ - V-), accurate to 8 bits. The external reference voltage as well as ground can also be switched to the output. The MAX4539/MAX4540 have enable inputs and address latching. All digital inputs have 0.8V and 2.4V logic thresholds, ensuring both TTL- and CMOS-logic compatibility when using a ±5V or a single +5V supply. Protection diodes at all inputs provide an ESD rating >2kV.
The MAX4539/MAX4540 operate from a single +2.7V to +12V supply, or from dual supplies of ±2.7V to ±6V. On-resistance (100Ω max) is matched between switch­es to 6Ω max. Each switch can handle Rail-to-Rail
®
analog signals. The off leakage current is 0.1nA at TA= +25°C and 2nA at TA= +85°C.
The MAX4539/MAX4540 are available in small 20-pin DIP, SO, and SSOP packages.
Applications
Battery-Operated Equipment Avionics Data-Acquisition Systems Audio-Signal Routing Test Equipment Networking
Features
♦ On-Chip Gain and Offset Divider Networks
Provide 15-Bit Accurate Output Ratios
♦ On-Chip V+ to GND and V+ to V- Divider Networks
Provide 8-Bit Accurate Output Ratios
♦ RON: 100Ω max ♦ R
ON
Matching Between Channels: 6Ω max
♦ Charge Injection: 5pC max ♦ Low 0.1nA Off Leakage Current ♦ Small 20-Pin SSOP/SO/DIP Packages
MAX4539/MAX4540
Low-Voltage, Single 8-to-1 and
Dual 4-to-1 Cal-Multiplexers
________________________________________________________________
Maxim Integrated Products
1
19-4780; Rev 1; 6/99
PART
MAX4539CAP
MAX4539CWP MAX4539CPP 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
20 SSOP 20 Wide SO 20 Plastic DIP
Pin Configurations/
_______________Functional Diagrams
Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
MAX4539EAP MAX4539EWP -40°C to +85°C
-40°C to +85°C 20 SSOP 20 Wide SO
MAX4539EPP -40°C to +85°C 20 Plastic DIP MAX4540CAP MAX4540CWP MAX4540CPP 0°C to +70°C
0°C to +70°C
0°C to +70°C 20 SSOP
20 Wide SO 20 Plastic DIP
MAX4540EAP MAX4540EWP -40°C to +85°C
-40°C to +85°C 20 SSOP 20 Wide SO
MAX4540EPP -40°C to +85°C 20 Plastic DIP
MAX4540 appears at end of data sheet.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.
GND
REFHI
1
V+
5R R2
2 3
V-
4
MAX4539
R23R
DECODER
LOGIC
20
LATCH
19
EN
18
CAL
17
A0
16
A1
15
A2
15R1
4081R1
4081R1
REFLO
5
6
COM
7
NO1
8
NO2
9
NO3
10
NO4
15R1
14
NO8
13
NO7
12
NO6
11
NO5
MAX4539/MAX4540
Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = +5V ±10%, V- = -5V ±10%, VIH= 2.4V, VIL= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values at TA= +25°C.)
(Note 2)
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.
Note 1: Signals on NO_, COM_, EN, LATCH, CAL, A_ exceeding V+ or V- are clamped by internal diodes. Limit forward current to
maximum current ratings.
V+ to GND..............................................................-0.3V to +13V
V- to GND ...............................................................-13V to +0.3V
V+ to V-...................................................................-0.3V to +13V
CAL, LATCH, A_, EN, NO_, COM_,
REFHI, REFLO (Note 1) ........................(V- - 0.3V) to (V+ + 0.3V)
Continuous Current (any terminal)....................................±20mA
Peak Current, NO_ or COM_
(pulsed at 1ms, 10% duty cycle max)...........................±40mA
Continuous Power Dissipation (T
A
= +70°C)
SSOP (derate 8mW/°C above +70°C) ..........................640mW
Wide SO (derate 8mW/°C above +70°C)......................800mW
Plastic DIP (derate 10.53mW/°C above +70°C) ...........842mW
Operating Temperature Ranges
MAX4539C_P/MAX4540C_P................................0°C to +70°C
MAX4539E_P/MAX4540E_P .............................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) ............................+300° C
(Note 3)
I
COM_
= 1mA; V
NO_
= -3V, 0, +3V;
V+ = 4.5V; V- = -4.5V
I
COM_
= 1mA, V
NO_
= ±3.0V,
V+ = 4.5V, V- = -4.5V
I
COM_
= 1mA, V
NO_
= ±3.0V,
V+ = 4.5V, V- = -4.5V
CONDITIONS
45 75
VV- V+
V
COM_
,
V
NO_
Analog-Signal Range
Ω
13
R
FLAT
Ω
100
R
ON
On-Resistance
14
Ω
6
∆R
ON
710
On-Resistance Flatness (Note 5)
UNITSMIN TYP MAXSYMBOLPARAMETER
On-Resistance Matching Between Channels (Note 4)
V
COM_
= ±4.5V, V
NO_
= 4.5V,
V+ = 5.5V, V- = -5.5V
nA
-2 2
I
NO(OFF)
-0.1 0.01 0.1
NO-Off Leakage Current (Note 6)
-10 10
V
COM_
= ±4.5V,
V
NO_
= 4.5V, V+ = 5.5V, V- = -5.5V
-0.2 0.01 0.2
nA
-5 5
I
COM_(OFF)
-0.1 0.01 0.1
COM-Off Leakage Current (Note 6)
TA= +25°C TA= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
TA= +25°C TA= T
MIN
to T
MAX
TA= +25°C TA= T
MIN
to T
MAX
TA= +25°C
MAX4539
TA= T
MIN
to T
MAX
TA= +25°C TA= T
MIN
to T
MAX
MAX4540
-10 10
-0.2 0.01 0.2
nA
-5 5
I
COM_(ON)
-0.1 0.01 0.1
COM-On Leakage Current (Note 6)
TA= +25°C TA= T
MIN
to T
MAX
MAX4539
TA= +25°C TA= T
MIN
to T
MAX
MAX4540
V
COM_
= ±4.5V,
V
NO_
= ±4.5V, V+ = 5.5V, V- = -5.5V
SWITCH
±
±
MAX4539/MAX4540
Low-Voltage, Single 8-to-1 and
Dual 4-to-1 Cal-Multiplexers
_______________________________________________________________________________________ 3
CONDITIONS
VEN= VA_= V
LATCH
= V
CAL
= V+ µA-0.1 0.01 0.1I
IH
Input Current with Input Voltage High
V1.4 0.8V
IL
Input Low Voltage
V2.4 1.7V
IH
Input High Voltage
UNITSMIN TYP MAXSYMBOLPARAMETER
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +5V ±10%, V- = -5V ±10%, VIH= 2.4V, VIL= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values at TA= +25°C.)
(Note 2)
VEN= VA_= V
LATCH
= V
CAL
= 0 or V+, V+ = 5.5V, V- = -5.5V (Note 7)
µA
-5 5
I+Positive Supply Current
-1 0.01 1
V±2.7 ±6Power-Supply Range
VEN= VA_= V
LATCH
= V
CAL
= 0 µA-0.1 0.01 0.1I
IL
Input Current with Input Voltage Low
Figure 2 ns
410
t
OPEN
Break-Before-Make Interval (Note 3)
100 150
TA= +25°C
TA= T
MIN
to T
MAX
VEN= VA_= V
LATCH
= V
CAL
= 0 or V+, V+ = 5.5V, V- = -5.5V (Note 7)
TA= T
MIN
to T
MAX
µA
-5 5
I-Negative Supply Current
-1 0.01 1TA= +25°C
VEN= VA_= V
LATCH
= V
CAL
= 0 or V+, V+ = 5.5V, V- = -5.5V (Note 7)
TA= T
MIN
to T
MAX
µA
-5 5
I
GND
GND Supply Current
-1 0.01 1TA= +25°C
TA= +25°C
TA= +25°C
50 100
75 115TA= +25°C
TA= +25°C
VEN= 0, f = 1MHz, Figure 5
CL= 1nF, V
NO_
= 0, Figure 4
dB-75V
ISO
Off-Isolation (Note 8)
pC15V
CTE
Charge Injection (Note 3)
TA= +25°C
TA= +25°C
f = 1MHz
VEN= 2.4V, f = 1MHz, V
GEN
= 1Vp-p, Figure 5
pF15C
IN
Logic Input Capacitance
dB-75V
CT
Crosstalk Between Channels (Note 9)
TA= +25°C
TA= +25°C
f = 1MHz, VEN= V
COM_
= 0,
Figure 6
pF3C
OFF
NO-Off Capacitance TA= +25°C
f = 1MHz, VEN= 2.4V, V
COM_
= 0, Figure 6
f = 1MHz, VEN= V
COM_
= 0,
Figure 6
pF26C
COM_(ON)
COM-On Capacitance
pF15C
COM_(OFF)
COM-Off Capacitance TA= +25°C
TA= +25°C
Figure 3 ns
175
t
ON
Enable Turn-On Time
TA= T
MIN
to T
MAX
Figure 3 ns
120
t
OFF
Enable Turn-Off Time
TA= T
MIN
to T
MAX
TA= T
MIN
to T
MAX
Figure 1 ns
200
t
TRANS
Transition Time
TA= T
MIN
to T
MAX
1
LOGIC INPUTS
SUPPLY
DYNAMIC CHARACTERISTICS
MAX4539/MAX4540
Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +5V ±10%, V- = -5V ±10%, VIH= 2.4V, VIL= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values at TA= +25°C.)
(Note 2)
TA= +25°C
Additional Positive Supply Current
V+ / V+ /
24k 13k
(V+ / 2) divider active, V
IH
= V+, V
IL
= 0 (Note 3)
TA= T
MIN
to T
MAX
Enable Setup Time t
ES
40
nsFigure 8
TA= +25°C 15 30
TA= T
MIN
to T
MAX
(V+ - V-) Divider Output
2544/ 2560/ 2576/
4096 4096 4096
Referenced to V- LSB
TA= +25°C
2544/ 2560/ 2576/
4096 4096 4096
TA= T
MIN
to T
MAX
(V+ / 2) Divider Output
2032/ 2048/ 2064/
4096 4096 4096
Referenced to GND LSB
TA= +25°C
2032/ 2048/ 2064/
4096 4096 4096
TA= T
MIN
to T
MAX
Gain Divider Output
4080.9/ 4081/ 4081.1/ 4096 4096 4096
V
REF
= 4.096V, REFHI = 4.096V, REFLO = GND
LSB
TA= +25°C
4080.9/ 4081/ 4081.1/ 4096 4096 4096
TA= T
MIN
to T
MAX
Offset Divider Output
14.9/ 15/ 15.1/ 4096 4096 4096
V
REF
= 4.096V, REFHI = 4.096V, REFLO = GND
TA= +25°C
Output Resistance (V+ - V-) Divider
69kΩ(Note 3)
TA= +25°C
Output Resistance Gain Divider
400 800 Ω(Note 3)
LSB
TA= +25°C
14.9/ 15/ 15.1/ 4096 4096 4096
TA= T
MIN
to T
MAX
Pulse Width, Latch Enable
t
MPW
40
nsFigure 7
TA= T
MIN
to T
MAX
Setup Time t
S
PARAMETER SYMBOL MIN TYP MAX UNITS
TA= +25°C
Output Resistance (REFHI, REFLO, GND)
400 800 Ω(Note 3)
TA= +25°C
Output Resistance (V+ / 2) Divider
69kΩ(Note 3)
TA= +25°C
Output Resistance Offset Divider
400 800 Ω(Note 3)
TA= +25°C
80
ns
TA= T
MIN
to T
MAX
Figure 7
30 15
TA= +25°C
TA= +25°C 45 70
Hold Time t
H
-10 0 ns
-10
Figure 7
CONDITIONS
mA
LATCH TIMING (Note 3)
INTERNAL DIVIDERS
TA= T
MIN
to T
MAX
MAX4539/MAX4540
Low-Voltage, Single 8-to-1 and
Dual 4-to-1 Cal-Multiplexers
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +5V ±10%, V- = -5V ±10%, VIH= 2.4V, VIL= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values at TA= +25°C.)
(Note 2)
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = +5V ±10%, V- = 0, VIH= 2.4V, VIL= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values at TA= +25°C.) (Note 2)
-10 10
-0.2 0.2
TA= +25°C
-10 10
TA= T
MIN
to T
MAX
(Note 3)
V
COM_
= 4.5V, 1V;
V
NO_
= 1V, 4.5V;
V+ = 5.5V
nA
-5 5
-0.2 0.2
TA= +25°C
I
COM_
= 1mA; V
NO_
= 3V, 2V, 1V;
V+ = 4.5V
I
COM_
= 1mA, V
NO_
= 3.0V,
V+ = 4.5V
TA= +25°C
I
COM_
= 1mA, V
NO_
= 3.0V,
V+ = 4.5V
nA
TA= T
MIN
to T
MAX
-5 5
CONDITIONS
I
COM_(OFF)
I
COM_(ON)
-0.1 0.1
TA= T
MIN
to T
MAX
COM-Off Leakage Current (Notes 6, 10)
TA= +25°C
V
COM_
= 4.5V,
V
NO_
= 4.5V,
V+ = 5.5V
TA= +25°C TA= T
MIN
to T
MAX
MAX4539
-0.1 0.1
TA= +25°C
COM-On Leakage Current (Notes 6, 10)
TA= T
MIN
to T
MAX
MAX4540
TA= +25°C TA= T
MIN
to T
MAX
MAX4539
TA= +25°C TA= T
MIN
to T
MAX
MAX4540
80 150
V0V+
V
NO_
,
V
COM_
Analog-Signal Range
ΩR
FLAT
V
COM_
= 1V, 4.5V;
V
NO_
= 4.5V, 1V; V+ = 5.5V
Ω
200
R
ON
On-Resistance
28
On-Resistance Matching Between Channels (Notes 3, 4)
Ω
12
∆R
ON
8
On-Resistance Flatness (Note 5)
UNITSMIN TYP MAXSYMBOLPARAMETER
nA
-2 2
I
NO(OFF)
-0.1 0.1
NO-Off Leakage Current (Notes 6, 10)
SWITCH
TA= +25°C
Additional Negative Supply Current
(V+ - V-)/ (V+ - V-)/
24k 13k
mA
(V+ - V-) divider active, V
IH
= V+, VIL= 0 (Note 3)
TA= +25°C
Additional Positive Supply Current (Note 3)
(V+ - V-)/ (V+ - V-)/
24k 13k
mA
PARAMETER SYMBOL MIN TYP MAX UNITS
(V+ - V-) divider active, V
IH
= V+, VIL= 0
TA= +25°C
Input Resistance (REFHI, REFLO) (Note 3)
25 40 kΩ
Offset divider active, gain divider active
REFHI, REFLO Input Range (Note 3)
V- V+
- 0.3 + 0.3
V
CONDITIONS
MAX4539/MAX4540
Low-Voltage, Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers
6 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = +5V ±10%, V- = 0, VIH= 2.4V, VIL= 0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values at TA= +25°C.) (Note 2)
VEN= VA_= V
LATCH
= V
CAL
= 0
or V+, V+ = 5.5V
TA= T
MIN
to T
MAX
µA
-5 5
I+
Positive Supply Current (Note 3)
-1 0.01 1
V2.7 12Power-Supply Range
VEN= VA_= V
LATCH
= V
CAL
= 0
CONDITIONS
µA-0.1 0.1I
IL
Input Current with Input Voltage Low
VEN= VA_= V
LATCH
= V
CAL
= V+
Figure 2
1
ns
410
t
OPEN
Break-Before-Make Interval
µA-0.1 0.1I
IH
Input Current with Input Voltage High
150 200
TA= +25°C
VEN= VA_= V
LATCH
= V
CAL
= 0
or V+, V+ = 5.5V
TA= T
MIN
to T
MAX
µA
-10 10
I
GND
GND Supply Current (Note 3)
-1 0.01 1TA= +25°C
TA= +25°C
TA= +25°C
60 100
Figure 1
TA= T
MIN
to T
MAX
115 150
ns
250
TA= +25°C
TA= +25°C
CL= 1nF, V
NO_
= 0, Figure 4 pC15V
CTE
Charge Injection TA= +25°C
V1.4 0.8V
IL
Input Low Voltage
V2.4 1.6V
IH
Input High Voltage
70TA= +25°C
UNITSMIN TYP MAXSYMBOLPARAMETER
t
TRANS
Transition Time
TA= T
MIN
to T
MAX
Figure 3 ns
200
t
ON
Enable Turn-On Time
TA= T
MIN
to T
MAX
Figure 3 ns
130
t
OFF
Enable Turn-Off Time
TA= T
MIN
to T
MAX
Figure 7
80
t
S
Setup Time
TA= T
MIN
to T
MAX
Figure 7 ns
-10
t
H
Hold Time
TA= T
MIN
to T
MAX
-10 0TA= +25°C
Figure 7 ns
40
t
MPW
TA= T
MIN
to T
MAX
30 15
Pulse Width, Latch Enable
TA= +25°C
ns
Figure 8 ns
40
t
ES
TA= T
MIN
to T
MAX
15 30
Enable Setup Time
TA= +25°C
LOGIC INPUTS (Note 3)
SUPPLY
DYNAMIC CHARACTERISTICS (Note 3)
LATCH TIMING (Note 3)
MAX4539/MAX4540
Low-Voltage, Single 8-to-1 and
Dual 4-to-1 Cal-Multiplexers
_______________________________________________________________________________________ 7
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
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal range.
Note 6: Leakage parameters are 100% tested at maximum-rated hot temperature and guaranteed by correlation at T
A
= +25°C.
Note 7: If the logic inputs can float during power-on, connect a 1MΩ pull-up from LATCH to V+; see
Applications Information
section.
Note 8: Off Isolation = 20log10(V
COM/VNO
), V
COM
= output, VNO= input to off switch.
Note 9: Between any two switches. Note 10: Leakage testing with a single supply is guaranteed by testing with dual supplies.
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +2.7V to +3.6V, V- = 0, V
IH
= 2.4V, V
IL
= 0.5V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values at TA= +25°C.)
(Note 2)
TA= +25°CEnable Setup Time 50t
ES
nsFigure 8
Input High Voltage V
IH
2.4 1.1 V
Input Low Voltage V
IL
1.1 0.5 V
Transition Time t
TRANS
ns
V
NO1
= 1.5V, V
NO8
= 0,
Figure 1
TA= +25°C 260 400
Enable Turn-Off Time t
OFF
100 150 nsVNO= 1.5V, Figure 3
Enable Turn-On Time t
ON
220 350 nsV
NO1
= 1.5V, Figure 3
TA= +25°C
Pulse Width, Latch Enable
TA= T
MIN
to T
MAX
On-Resistance R
ON
40
PARAMETER SYMBOL MIN TYP MAX UNITS
t
MPW
nsFigure 7
TA= +25°C TA= +25°C
100
TA= +25°C
TA= +25°C
600
Ω
-10 0
I
COM_
= 0.2mA, V
NO_
= 1.5V,
V+ = 2.7V
ns
TA= +25°C
Hold Time t
H
nsFigure 7
Setup Time
220 500
t
S
CONDITIONS
Figure 7
V0V+V
COM_
Analog-Signal Range (Note 3)
SWITCH
LATCH TIMING (Note 3)
LOGIC INPUTS (Note 3)
DYNAMIC (Note 3)
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