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PDF MAX4540 Data sheet ( Hoja de datos )
| Número de pieza | MAX4540 | |
| Descripción | Low-Voltage / Single 8-to-1 and Dual 4-to-1 Cal-Multiplexers | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX4540 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
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19-4780; Rev 1; 6/99
Low-Voltage, Single 8-to-1 and
Dual 4-to-1 Cal-Multiplexers
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 self-
monitoring 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 switch-
es 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.
Battery-Operated Equipment
Data-Acquisition Systems
Test Equipment
Applications
Avionics
Audio-Signal Routing
Networking
PART
MAX4539CAP
MAX4539CWP
MAX4539CPP
MAX4539EAP
MAX4539EWP
MAX4539EPP
MAX4540CAP
MAX4540CWP
MAX4540CPP
MAX4540EAP
MAX4540EWP
MAX4540EPP
Ordering Information
TEMP. RANGE
0°C to +70°C
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
0°C to +70°C
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
PIN-PACKAGE
20 SSOP
20 Wide SO
20 Plastic DIP
20 SSOP
20 Wide SO
20 Plastic DIP
20 SSOP
20 Wide SO
20 Plastic DIP
20 SSOP
20 Wide SO
20 Plastic DIP
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Features
o On-Chip Gain and Offset Divider Networks
Provide 15-Bit Accurate Output Ratios
o On-Chip V+ to GND and V+ to V- Divider Networks
Provide 8-Bit Accurate Output Ratios
o RON: 100Ω max
o RON Matching Between Channels: 6Ω max
o Charge Injection: 5pC max
o Low 0.1nA Off Leakage Current
o Small 20-Pin SSOP/SO/DIP Packages
Pin Configurations/
_______________Functional Diagrams
V+ 1
3R
5R
GND
V-
REFHI
2
3
4
15R1
MAX4539
R2
20
LOGIC
DECODER
19
18
17
16
15
R2
LATCH
EN
CAL
A0
A1
A2
4081R1
REFLO
COM
NO1
NO2
NO3
NO4
4081R1
5
6
7
8
9
10
15R1
MAX4540 appears at end of data sheet.
14
13 NO8
NO7
12 NO6
11
NO5
________________________________________________________________ Maxim Integrated Products 1
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.
1 page  
Low-Voltage, Single 8-to-1 and
Dual 4-to-1 Cal-Multiplexers
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +5V ±10%, V- = -5V ±10%, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values at TA = +25°C.)
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Additional Positive Supply
Current (Note 3)
(V+ - V-) divider active,
VIH = V+, VIL = 0
TA = +25°C
(V+ - V-)/ (V+ - V-)/
24k 13k
mA
Additional Negative
Supply Current
(V+ - V-) divider active,
VIH = V+, VIL = 0 (Note 3)
TA = +25°C
(V+ - V-)/ (V+ - V-)/
24k 13k
mA
REFHI, REFLO Input
Range (Note 3)
V-
- 0.3
V+
+ 0.3
V
Input Resistance
(REFHI, REFLO) (Note 3)
Offset divider active,
gain divider active
TA = +25°C
25 40
kΩ
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = +5V ±10%, V- = 0, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values at TA = +25°C.) (Note 2)
PARAMETER
SWITCH
SYMBOL
CONDITIONS
Analog-Signal Range
VNO_,
VCOM_
(Note 3)
On-Resistance
On-Resistance Matching
Between Channels
(Notes 3, 4)
RON
ICOM_ = 1mA, VNO_ = 3.0V,
V+ = 4.5V
∆RON
ICOM_ = 1mA, VNO_ = 3.0V,
V+ = 4.5V
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
On-Resistance Flatness
(Note 5)
NO-Off Leakage Current
(Notes 6, 10)
COM-Off Leakage
Current (Notes 6, 10)
COM-On Leakage
Current (Notes 6, 10)
RFLAT
ICOM_ = 1mA; VNO_ = 3V, 2V, 1V;
V+ = 4.5V
INO(OFF)
VCOM_ = 1V, 4.5V;
VNO_ = 4.5V, 1V; V+ = 5.5V
VCOM_ = 4.5V, 1V; MAX4539
ICOM_(OFF) VNO_ = 1V, 4.5V;
V+ = 5.5V
MAX4540
VCOM_ = 4.5V,
ICOM_(ON) VNO_ = 4.5V,
V+ = 5.5V
MAX4539
MAX4540
TTAA
=
=
+25°C
TMIN to
TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
MIN
0
-0.1
-2
-0.2
-10
-0.1
-5
-0.2
-10
-0.1
-5
TYP
80
2
8
MAX UNITS
V+ V
150
Ω
200
8
Ω
12
Ω
0.1
nA
2
0.2
10
nA
0.1
5
0.2
10
nA
0.1
5
_______________________________________________________________________________________ 5
5 Page 
Low-Voltage, Single 8-to-1 and
Dual 4-to-1 Cal-Multiplexers
MAX4539 (Single 8-to-1 Cal-Mux)
CAL
A2
A1
A0
EN LATCH
XXXX0
XXXX1
00001
00011
00101
00111
01001
01011
01101
01111
10001
10011
10101
10111
11001
11011
11101
11111
X = Don’t care
X
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Truth Tables
COM
All switches and dividers open. COM is high-Z. Latch contents set
to all 1’s.
State is latched when LATCH is high.
NO1
NO2
NO3
NO4
NO5
NO6
NO7
NO8
(V+ / 2) Divider Mode, VCOM = 2048/4096 V+
REFHI
REFLO
(V+ - V-) Divider Mode , VCOM = 2560/4096 (V+ - V-)
GND
Gain Divider Mode, VCOM = 4081/4096 (VREFHI - VREFLO)
Offset Divider Mode, VCOM = 15/4096 (VREFHI - VREFLO)
All switches and dividers open. COM is high-Z.
MAX4540 (Dual 4-to-1 Cal-Mux)
CAL
A1
A0
EN LATCH
XXX0
X
XXX1
0001
0011
0101
0111
1001
1011
1101
1
0
0
0
0
0
0
0
1111
0
X = Don’t care
COMA
All switches and dividers open.
COMA is high-Z.
State is latched
NO1A
NO2A
NO3A
NO4A
GND
Gain Divider Mode
Offset Divider Mode
All switches and dividers open.
COMA is high-Z.
COMB
All switches and dividers open.
COMB is high-Z.
State is latched
NO1B
NO2B
NO3B
NO4B
GND
REFLO
REFLO
All switches and dividers open.
COMB is high-Z.
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet MAX4540.PDF ] | |
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