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PDF ISL43840 Data sheet ( Hoja de datos )
| Número de pieza | ISL43840 | |
| Descripción | Low-Voltage/ Single and Dual Supply/ Dual 4 to 1 Multiplexer Analog Switch with Enable | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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Data Sheet
September 2003
ISL43840
FN6056
Low-Voltage, Single and Dual Supply,
Dual 4 to 1 Multiplexer Analog Switch with
Enable
The Intersil ISL43840 device is a precision, bidirectional,
analog switches configured as a a dual 4 channel multiplexer/
demultiplexer designed to operate from a single +2V to +12V
supply or from a ±2V to ±6V supply. The device has two
enable bar pins to simultaneously open all signal paths of
bank A and B.
ON resistance of 39Ω with a ±5V supply and 125Ω with a
+3.3V supply. Each switch can handle rail to rail analog
signals. The off-leakage current is only .01nA at +25oC or
2.5nA at +85oC.
All digital inputs have 0.8V to 2.4V logic thresholds, ensuring
TTL/CMOS logic compatibility when using a single 3.3V or
+5V supply or dual ±5V supplies.
The ISL43840 is a dual 4 to 1 multiplexer device. Table 1
summarizes the performance of this part.
TABLE 1. FEATURES AT A GLANCE
CONFIGURATION
DUAL 4:1 MUX
±5V RON
±5V tON / tOFF
12V RON
12V tON / tOFF
5V RON
5V tON / tOFF
3.3V RON
3.3V tON / tOFF
Package
39Ω
32ns/18ns
32Ω
23ns/15ns
65Ω
38ns/19ns
125Ω
70ns/32ns
20 Ld 4x4 QFN
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
• Application Note AN520 “CMOS Analog Multiplexers and
Switches; Specifications and Application Considerations.”
• Application Note AN1034 “Analog Switch and Multiplexer
Applications”
Features
• Fully Specified at 3.3V, 5V, ±5V, and 12V Supplies for
10% Tolerances
• ON Resistance (RON) Max, VS = ±4.5V. . . . . . . . . . . 50Ω
• ON Resistance (RON) Max, VS = +3V . . . . . . . . . . . 155Ω
• RON Matching Between Channels, VS = ±5V . . . . . . . . <2Ω
• Low Charge Injection, VS = ±5V . . . . . . . . . . . . . 1pC (Max)
• Single Supply Operation. . . . . . . . . . . . . . . . . . . +2V to +12V
• Dual Supply Operation . . . . . . . . . . . . . . . . . . . . . ±2V to ±6V
• Fast Switching Action (VS = +5V)
- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38ns
- tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19ns
• Guaranteed Max Off-leakage . . . . . . . . . . . . . . . . . . . . 2.5nA
• Guaranteed Break-Before-Make
• TTL, CMOS Compatible
Applications
• Communications Systems
- Radios
- Telecom Infrastructure
- ADSL, VDSL Modems
• Test Equipment
- Medical Ultrasound
- Magnetic Resonance Image
- CT and PET Scanners (MRI)
- ATE
- Electrocardiograph
• Audio and Video Signal Routing
• Various Circuits
- +3V/+5V DACs and ADCs
- Sample and Hold Circuits
- Operational Amplifier Gain Switching Networks
- High Frequency Analog Switching
- High Speed Multiplexing
- Integrator Reset Circuits
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved
1 page  
ISL43840
Electrical Specifications +12V Supply Test Conditions: V+ = +10.8V to +13.2V, GND = 0V, VINH = 4V, VINL = 0.8V (Note 3),
Unless Otherwise Specified (Continued)
PARAMETER
TEST CONDITIONS
TEMP (NOTE 4)
(oC)
MIN
(NOTE 4)
TYP MAX UNITS
COM OFF Leakage Current,
ICOM(OFF)
V+ = 13.2V, VCOM = 12V, 1V, VNO = 1V, 12V,
(Note 7)
25 -0.1 0.002 0.1 nA
Full -2.5
-
2.5 nA
COM ON Leakage Current,
ICOM(ON)
V+ = 13.2V, VCOM = 1V, 12V, VNO = 1V, 12V, or
floating, (Note 7)
25 -0.1 0.002 0.1 nA
Full -2.5
-
2.5 nA
DIGITAL INPUT CHARACTERISTICS
Input Voltage High, VENH, VADDH
Input Voltage Low, VENL, VADDL
Input Current, IENH, IENL, IADDH,
IADDL
DYNAMIC CHARACTERISTICS
V+ = 13.2V, VENH, VADD = 0V or V+
Full 3.7
3.3
Full -
2.7
Full -0.5 0.03
-V
0.8 V
0.5 µA
Enable Turn-ON Time, tON
V+ = 10.8V, VNO = 10V, RL = 300Ω, CL = 35pF,
VIN = 0 to 4, (See Figure 1)
25 -
Full -
24 40 ns
45 ns
Enable Turn-OFF Time, tOFF
V+ = 10.8V, VNO = 10V, RL = 300Ω, CL = 35pF,
VIN = 0 to 4, (See Figure 1)
25 -
Full -
15 30 ns
35 ns
Address Transition Time, tTRANS
V+ = 10.8V, VNO = 10V, RL = 300Ω, CL = 35pF,
VIN = 0 to 4, (See Figure 1)
25 -
Full -
27 50 ns
55 ns
Break-Before-Make Time Delay, tD
Charge Injection, Q
OFF Isolation
Crosstalk, (Note 8)
V+ = 13.2V, RL = 300Ω, CL = 35pF, VNO = 10V,
VIN = 0 to 4, (See Figure 3)
CL = 1.0nF, VG = 0V, RG = 0Ω, (See Figure 2)
RL = 50Ω, CL = 15pF, f = 100kHz,
VNO = 1VRMS, (See Figures 4 and 6)
Full 2
5
ns
25 - 2.7 5 pC
25 - 92 - dB
25 - ≤110 - dB
All Hostile Crosstalk, (Note 8)
25 - -105 - dB
NO or NC OFF Capacitance, COFF f = 1MHz, VNO = VCOM = 0V, (See Figure 7)
COM OFF Capacitance,
CCOM(OFF)
f = 1MHz, VNO = VCOM = 0V, (See Figure 7)
COM ON Capacitance, CCOM(ON) f = 1MHz, VNO = VCOM = 0V, (See Figure 7)
POWER SUPPLY CHARACTERISTICS
25 - 3 - pF
25 - 12 - pF
25 - 18 - pF
Power Supply Range
Full 2
- 12 V
Positive Supply Current, I+
Positive Supply Current, I-
V+ = 13.2V, VENH, VADD = 0V or V+, all channels On
or Off
Full
Full
-1
-1
-
-
1 µA
1 µA
5
5 Page 
ISL43840
Leakage Considerations
Reverse ESD protection diodes are internally connected
between each analog-signal pin and both V+ and V-. One
of these diodes conducts if any analog signal exceeds V+
or V-.
Virtually all the analog leakage current comes from the ESD
diodes to V+ or V-. Although the ESD diodes on a given
signal pin are identical and therefore fairly well balanced,
they are reverse biased differently. Each is biased by either
V+ or V- and the analog signal. This means their leakages
will vary as the signal varies. The difference in the two diode
leakages to the V+ and V- pins constitutes the analog-signal-
path leakage current. All analog leakage current flows
between each pin and one of the supply terminals, not to the
other switch terminal. This is why both sides of a given
switch can show leakage currents of the same or opposite
polarity. There is no connection between the analog signal
paths and GND.
Typical Performance Curves TA = 25oC, Unless Otherwise Specified
70
V- = -5V
VCOM = (V+) - 1V
60 ICOM = 1mA
50 85oC
40 25oC
30 -40oC
20
400
V- = 0V
300
200
85oC 25oC
100
-40oC
0
2 3 4 5 6 7 8 9 10 11
V+ (V)
FIGURE 9. ON RESISTANCE vs SUPPLY VOLTAGE
12
120
110
100
ICOM = 2mA
90
80
70
60
50
90
80
70 85oC
60
50 25oC
40 -40oC
30
60
50 25oC
40
30 -40oC
20
-5 -4
-3
85oC
-2
-1 0 1
VCOM (V)
85oC
VS = ±2V
25oC
-40oC
VS = ±3V
VS = ±5V
2345
FIGURE 10. ON RESISTANCE vs SWITCH VOLTAGE
225
200
175
150
125
100
75
160
140
120
100
80
60
100
90
80
70 25oC
60
50
40
0
85oC
1
85oC
25oC
-40oC
ICOM = 1mA
V+ = 2.7V
V- = 0V
85oC
25oC
-40oC
V+ = 3.3V
V- = 0V
V+ = 5V V- = 0V
23
VCOM (V)
-40oC
4
5
FIGURE 11. ON RESISTANCE vs SWITCH VOLTAGE
60
V+ = 12V
55
V- = 0V
ICOM = 1mA
50
45
85oC
40
35
30 25oC
25
-40oC
20
0 2 4 6 8 10 12
VCOM (V)
FIGURE 12. ON RESISTANCE vs SWITCH VOLTAGE
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet ISL43840.PDF ] | |
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