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PDF ISL43145 Data sheet ( Hoja de datos )
| Número de pieza | ISL43145 | |
| Descripción | Low-Voltage/ Single and Dual Supply/ Quad SPST/ High Performance Analog Switches | |
| Fabricantes | Intersil Corporation | |
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Data Sheet
ISL43143, ISL43144, ISL43145
May 2003
FN6037.1
Low-Voltage, Single and Dual Supply,
Quad SPST, High Performance Analog
Switches
The Intersil ISL43143–ISL43145 devices are CMOS,
precision, quad SPST analog switches designed to operate
from a single +2V to +12V supply or from a ±2V to ±6V supply.
Targeted applications include battery powered equipment that
benefit from the devices’ low power consumption (<1µW), low
leakage currents (5nA max), and fast switching speeds
(tON = 52ns, tOFF = 40ns). A 5Ω maximum RON flatness
ensures signal fidelity, while channel-to-channel mismatch is
guaranteed to be less than 2Ω.
The ISL43143/ISL43144/ISL43145 are quad single-pole/
single-throw (SPST) devices. The ISL43143 has four normally
closed (NC) switches; the ISL43144 has four normally open
(NO) switches; the ISL43145 has two NO and two NC
switches and can be used as a dual SPDT, or a dual 2:1
multiplexer.
Table 1 summarizes the performance of this family.
TABLE 1. FEATURES AT A GLANCE
ISL43143 ISL43144 ISL43145
Number of Switches
4
4
4
Configuration
All NC
All NO 2 NC/2 NO
±4.5V RON
±4.5V tON/tOFF
10.8V RON
10.8V tON/tOFF
4.5V RON
4.5V tON/tOFF
3V RON
3V tON/tOFF
Packages
18Ω 18Ω 18Ω
52ns/40ns 52ns/40ns 52ns/40ns
14Ω 14Ω 14Ω
40ns/27ns 40ns/27ns 40ns/27ns
30Ω 30Ω 30Ω
64ns/29ns 64ns/29ns 64ns/29ns
51Ω 51Ω 51Ω
120ns/50ns 120ns/50ns 120ns/50ns
16 Ld TSSOP, 16Ld QFN 4x4
Features
• Fully Specified for 10% Tolerances at VS = ±5V and
V+ = 12V, 5V and 3.3V
• Four Separately Controlled SPST Switches
• Pin Compatible with DG411/DG412/DG413
• ON Resistance (RON Max.) . . . . . . . . . . . . . . . . . . . . 25Ω
• RON Matching Between Channels. . . . . . . . . . . . . . . . . . <1Ω
• Low Power Consumption (PD) . . . . . . . . . . . . . . . . . . . .<1µW
• Low Off Leakage Current (Max at 85oC) . . . . . . . . . 2.5nA
• Fast Switching Action
- tON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52ns
- tOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40ns
• Minimum 2000V ESD Protection per Method 3015.7
• TTL, CMOS Compatible
Applications
• Battery Powered, Handheld, and Portable Equipment
- Barcode Scanners
- Laptops, Notebooks, Palmtops
• Communications Systems
- Radios
- XDSL and PBX / PABX
- RF “Tee” Switches
- Base Stations
• Test Equipment
- Medical Ultrasound
- Electrocardiograph
- ATE
• Audio and Video Switching
• General Purpose Circuits
- +3V/+5V DACs and ADCs
- Digital Filters
- Operational Amplifier Gain Switching Networks
- High Frequency Analog Switching
- High Speed Multiplexing
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• AN557 “Recommended Test Procedures for Analog
Switches”
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
All other trademarks mentioned are the property of their respective owners.
1 page  
ISL43143, ISL43144, ISL43145
Electrical Specifications: ±5V Supply Test Conditions: VSUPPLY = ±4.5V to ±5.5V, GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 5),
Unless Otherwise Specified (Continued)
PARAMETER
TEST CONDITIONS
TEMP (NOTE 6)
(NOTE 6)
(oC)
MIN
TYP MAX UNITS
COM OFF Capacitance,
CCOM(OFF)
f = 1MHz, VNO or VNC = VCOM = 0V, See Figure 7
25
-
26
- pF
COM ON Capacitance, CCOM(ON) f = 1MHz, VNO or VNC = VCOM = 0V, See Figure 7
25
-
34
- pF
OFF Isolation
Crosstalk, Note 9
RL = 50Ω, CL = 15pF, f = 1MHz,
VNO or VNC = 1VRMS, See Figures 4 and 6
25 - 71 - dB
25 - -89 - dB
Power Supply Rejection Ratio
RL = 50Ω, CL = 5pF, f = 1MHz
POWER SUPPLY CHARACTERISTICS
25 - 58 - dB
Power Supply Range
Full ±2 - ±6 V
Positive Supply Current, I+
VS = ±5.5V, VIN = 0V or V+, Switch On or Off
25 -1 0.01 1 µA
Full -1 - 1 µA
Negative Supply Current, I-
25 -1 0.01 1 µA
Full -1 - 1 µA
NOTES:
6. VIN = Input voltage to perform proper function.
7. The algebraic convention, whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
8. Leakage parameter is 100% tested at high temp, and guaranteed by correlation at 25oC.
9. Flatness is defined as the delta between the maximum and minimum RON values over the specified voltage range.
10. Between any two switches.
Electrical Specifications: 5V Supply
Test Conditions: V+ = +4.5V to +5.5V, V- = GND = 0V, VINH = 2.4V, VINL = 0.8V (Note 5),
Unless Otherwise Specified
PARAMETER
TEST CONDITIONS
ANALOG SWITCH CHARACTERISTICS
Analog Signal Range, VANALOG
ON Resistance, RON
V+ = 4.5V, ICOM = 1.0mA, VNO or VNC = 3.5V,
See Figure 5
RON Matching Between Channels, V+ = 4.5V, ICOM = 1.0mA, VNO or VNC = 3V
∆RON
RON Flatness, RFLAT(ON)
V+ = 5.5V, ICOM = 1.0mA, VNO or VNC = 1V, 2V, 3V,
Note 8
NO or NC OFF Leakage Current,
INO(OFF) or INC(OFF)
V+ = 5.5V, VCOM = 1V, 4.5V, VNO or VNC = 4.5V, 1V,
Note 7
COM OFF Leakage Current,
ICOM(OFF)
V+ = 5.5V, VCOM = 1V, 4.5V, VNO or VNC = 4.5V, 1V,
Note 7
COM ON Leakage Current,
ICOM(ON)
V+ = 5.5V, VCOM = VNO or VNC = 1V, 4.5V, Note 7
DIGITAL INPUT CHARACTERISTICS
Input Voltage High, VINH
Input Voltage Low, VINL
Input Current, IINH, IINL
DYNAMIC CHARACTERISTICS
Turn-ON Time, tON
V+ = 5.5V, VIN = 0V or V+
V+ = 4.5V, VNO or VNC = 3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V, See Figure 1
Turn-OFF Time, tOFF
V+ = 4.5V, VNO or VNC = 3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V, See Figure 1
Break-Before-Make Time Delay
(ISL43145 only), tD
V+ = 5.5V, VNO or VNC = 3V, RL = 300Ω, CL = 35pF,
VIN = 0 to 3V, See Figure 3
TEMP MIN
(oC) (NOTE 6)
Full 0
25 -
Full -
25 -
Full -
25 -
Full -
25 -0.1
Full -2.5
25 -0.1
Full -2.5
25 -0.2
Full -5
Full 2.4
Full -
Full -1
25 -
Full -
25 -
Full -
Full 15
TYP
-
30
-
0.5
-
4.4
-
-
-
-
-
-
-
1.5
1.4
-
64
-
29
-
39
MAX
(NOTE 6) UNITS
V+ V
40 Ω
50 Ω
3Ω
4Ω
6Ω
8Ω
0.1 nA
2.5 nA
0.1 nA
2.5 nA
0.2 nA
5 nA
-V
0.8 V
1 µA
80 ns
90 ns
40 ns
45 ns
- ns
5
5 Page 
ISL43143, ISL43144, ISL43145
Crosstalk rejection provided by this family. At 10MHz, OFF
isolation is about 50dB in 50Ω systems, decreasing
approximately 20dB per decade as frequency increases.
Higher load impedances decrease OFF Isolation and
Crosstalk rejection due to the voltage divider action of the
switch OFF impedance and the load impedance.
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
25
20
85oC
V- = -5V
15
-40oC
10
35
30
25
20
15 -40oC
10
200
150
125
100
75
85oC
25oC
50
25 -40oC
0
23
4
5
25oC
85oC
V- = -3V
V- = 0V
678
V+ (V)
9
VCOM = (V+) - 1V
ICOM = 1mA
25oC
10 11 12 13
FIGURE 9. ON RESISTANCE vs POSITIVE SUPPLY VOLTAGE
70
60
V+ = 3V
ICOM = 1mA
50
85oC
V- = 0V
40 25oC
30 -40oC
20
35 85oC V+ = 5V
30
25 25oC V- = 0V
20 -40oC
15
20
18 85oC 25oC
16
V+ = 12V
V- = 0V
14
12
10 -40oC
8
0 1 2 3 4 5 6 7 8 9 10 11
VCOM (V)
FIGURE 10. ON RESISTANCE vs SWITCH VOLTAGE
12
45
40 ICOM = 1mA
35
30
25
20
35
30
25
20
15
10
25
20 25oC
15
10 -40oC
85oC
85oC
85oC
25oC
VS = ±2V
-40oC
VS = ±3V
25oC
-40oC
VS = ±5V
5
-5 -4 -3 -2 -1 0 1 2 3 4 5
VCOM (V)
FIGURE 11. ON RESISTANCE vs SWITCH VOLTAGE
15
10
5
VS = ±5V
0
V+ = 5V
V+ = 3V
V+ = 12V
-5
-10
-5 -2.5
0
2.5
5
7.5 10 12.5
VCOM (V)
FIGURE 12. CHARGE INJECTION vs SWITCH VOLTAGE
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet ISL43145.PDF ] | |
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