MAX4599 [MAXIM]
Low-Voltage, Single-Supply, SPDT Analog Switch in SC70; 低电压，单电源， SPDT模拟开关，SC70封装
| 型号： | MAX4599 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-Voltage, Single-Supply, SPDT Analog Switch in SC70 |
| 文件： | 总8页 (文件大小：130K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1637; Rev 0; 2/00
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
General Description
Features
The MAX4599 single-pole/double-throw (SPDT) switch
operates from a +2.0V to +5.5V single supply. It offers
ꢀ Available in 6-Pin SC70 Package
ꢀ 60Ω max (40Ω typ) On-Resistance
60Ω max on-resistance (R ) at +5V and fast switching
ON
times (t
= 30ns max, t
= 25ns max).
ON
OFF
ꢀ 1Ω max (0.2Ω typ) R
Matching Between
ON
The MAX4599 features excellent R
flatness (4Ω max)
ON
Channels
and matching (1Ω max) between channels. This device
ꢀ 4Ω max (2.5Ω typ) R
Flatness
ON
also offers 5pC max charge injection.
ꢀ Fast Switching: t
= 30ns (max)
ON
The MAX4599 is available in tiny 6-pin SC70 and SOT23
packages.
t
= 25ns (max)
OFF
ꢀ Guaranteed 5pC max Charge Injection
ꢀ +2.0V to +5.5V Single-Supply Operation
ꢀ 200MHz -3dB Bandwidth
ꢀ Low 0.5nA Leakage Current at +25ꢀC
ꢀ Break-Before-Make Switching
ꢀ TTL/CMOS-Logic Compatible
Applications
Battery-Operated Equipment
Audio and Video Signal Routing
Cellular Phones
ꢀ -76dB Off-Isolation at 1MHz
ꢀ 0.12% Total Harmonic Distortion
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
Ordering Information
PIN-
PACKAGE
TOP
MARK
PART
TEMP. RANGE
MAX4599EXT-T -40°C to +85°C 6 SC70-6
MAX4599EUT-T -40°C to +85°C 6 SOT23-6
AAF
AAHC
Pin Configuration/Functional Diagram/Truth Table
MAX4599
IN
V+
1
2
3
6
5
4
NO
COM
NC
GND
SC70-6/SOT23-6
MAX4599
NC
ON
IN
0
1
NO
OFF
ON
OFF
SWITCH IS SHOWN FOR "0" INPUT.
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to GND
Continuous Power Dissipation (T = +70°C)
A
V+.........................................................................-0.3V to +6V
IN, COM, NO, NC (Note 1)...........................-0.3V to (V+ + 0.3V)
Continuous Current (any terminal).................................... 20mA
Peak Current, COM, NO, NC
6-Pin SC70-6 (derate 3.1mW/°C above +70°C)...........245mW
6-Pin SOT23-6 (derate 7.1mW/°C above +70°C) ........571mW
Operating Temperature Range
MAX4599E_T ...................................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
(pulsed at 1ms, 10% duty cycle).................................. 40mA
Note 1: Signals on NO, NC, COM, or IN exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to
maximum current rating.
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— Single +5V Supply
(V+ = +4.5V to +5.5V, V
= +2.4V, V
= +0.8V, T = T
to T
, unless otherwise noted.) (Notes 2, 3)
MAX
INH
INL
A
MIN
PARAMETER
ANALOG SWITCH
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
,
COM
, V
Analog Signal Range
On-Resistance
0
V+
V
Ω
Ω
V
NO NC
T
A
T
A
T
A
T
A
= +25°C
40
60
65
1
V+ = 4.5V, I
= 1mA,
= 3.5V
COM
R
ON
V
NO
or V
NC
= T
to T
MIN
MAX
MAX
= +25°C
= T to T
0.2
On-Resistance Match Between
Channels (Note 4)
V+ = 4.5V, I
= 1A,
= 3.5V
COM
∆RON
V
NO
or V
NC
2
MIN
V+ = 4.5V; I
= 1mA;
T
A
T
A
T
A
T
A
T
A
T
A
= +25°C
2.5
4
5
COM
On-Resistance Flatness
(Note 5)
R
V
NO
or V = 1V, 2.0V,
Ω
FLAT(ON)
NC
3.5V
= T
to T
MIN
MAX
MAX
MAX
V+ = 5.5V; V
= 1V,
= +25°C
= T to T
-0.5
-5
0.01
0.01
0.5
5
COM
NO, NC Off-Leakage Current
(Note 6)
I
,
NO(OFF)
4.5V; V
1V
or V
= 4.5V,
nA
nA
NO
NC
I
NC(OFF)
MIN
V+ = 5.5V; V
= 1V,
= 1V,
= +25°C
= T to T
-1
1
COM
COM On-Leakage Current
(Note 6)
I
4.5V; V
or V
NO NC
COM(ON)
4.5V, or floating
-10
10
MIN
DIGITAL I/O
Input Logic High
Input Logic Low
DYNAMIC
V
2.4
V
V
IH
V
0.8
IL
V
, V
= 3V;
L
T
T
= +25°C
25
30
40
NO NC
L
A
Turn-On Time
t
R = 1kΩ; C = 35pF;
Figure 2
ns
ON
= T
to T
MIN MAX
A
2
_______________________________________________________________________________________
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ =+4.5V to +5.5V, V
= +2.4V, V
= +0.8V, T = T
to T
, unless otherwise noted.) (Notes 2, 3)
MAX
INH
INL
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
, V
= 3V;
L
T
A
T
A
T
A
T
A
= +25°C
20
25
NO NC
L
Turn-Off Time
t
R = 1kΩ; C = 35pF;
Figure 2
ns
OFF
= T
to T
30
MIN
MAX
MAX
V
, V
= 3V;
L
= +25°C
= T to T
10
NO NC
Break-Before-Make
t
R = 1kΩ; C = 35pF;
Figure 3
ns
MHz
dB
BBM
L
1
MIN
Signal = 0dBm,
50Ω in and out, Figure 5
On-Channel -3dB Bandwidth
Off-Isolation (Note 7)
BW
T
= +25°C
= +25°C
200
-76
A
A
C = 5pF; R = 50Ω;
L
L
V
f = 1MHz; V , V
=
NC
T
N
O
ISO
1V
Figure 5
RMS;
V
= 0, R
= 0,
GEN
GEN
L
Charge Injection (Note 6)
NO, NC Off-Capacitance
COM Off-Capacitance
Q
T
A
T
A
T
A
= +25°C
= +25°C
= +25°C
3
8
8
5
pC
pF
pF
C = 1.0nF, Figure 4
C
C
),
)
V
, V
= GND;
NO(OFF
NC(OFF
NO NC
f = 1MHz; Figure 6
V
COM
= GND, f = 1MHz,
C
COM(OFF)
Figure 6
V
V
= V
,
COM
NC
NO
Switch On-Capacitance
C
= GND, f = 1MHz,
T
= +25°C
= +25°C
20
pF
%
(ON)
A
A
Figure 6
R = 600Ω, V = 5Vp-p,
f = 20Hz to 20kHz
IN
L
Total Harmonic Distortion
THD
T
0.12
SUPPLY
Power-Supply Range
Positive Supply Current
V+
I+
2.0
-1
5.5
1
V
V+ = 5.5V, V = 0 or V+
0.001
µA
IN
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +2.7V to +3.6V, V
= +2.0V, V
= +0.8V, T =T
to T
, unless otherwise noted.) (Notes 2, 3)
MAX
INH
INL
A
MIN
PARAMETER
ANALOG SWITCH
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
,
COM
, V
Analog Signal Range
On-Resistance
0
V+
V
V
NO NC
T
T
= +25°C
60
95
A
V+ = 2.7V, I
= 1mA,
COM
= 1V
R
Ω
ON
V
NO
or V
NC
= T
to T
105
A
MIN
MAX
DIGITAL I/O
Input Logic High
Input Logic Low
V
2.0
V
V
IH
V
0.8
IL
_______________________________________________________________________________________
3
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
(V+ = +2.7V to +3.6V, V
= +2.0V, V
= +0.8V, T =T
to T
, unless otherwise noted.) (Notes 2, 3)
MAX
INH
INL
A
MIN
PARAMETER
DYNAMIC
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ns
V
, V
= 2V;
L
T
A
T
A
T
A
T
A
T
A
T
A
= +25°C
40
45
55
35
40
NO NC
L
Turn-On Time
Turn-Off Time
t
R = 1kΩ; C = 35pF;
ON
Figure 2
= T
to T
MIN
MAX
MAX
MAX
V
, V
= 2V;
L
= +25°C
= T to T
30
13
NO NC
t
R = 1kΩ; C = 35pF;
ns
OFF
L
Figure 2
MIN
V
, V
= 2V;
L
= +25°C
= T to T
NO NC
Break-Before-Make
t
R = 1kΩ; C = 35pF;
ns
pC
µA
BBM
L
Figure 3
1
MIN
V
GEN
= 0, R
= 0,
GEN
Charge Injection (Note 6)
Q
T
A
= +25°C
2
5
1
C = 1.0nF, Figure 4
L
SUPPLY
Positive Supply Current
I+
V+ = 3.6V, V = 0 or V+
-1
0.001
IN
ELECTRICAL CHARACTERISTICS—Single +2.5V Supply
(V+ = +2.5V, V
= +2.0V, V
= +0.6V, T =T
A
to T , unless otherwise noted.) (Notes 2, 3)
MAX
INH
INL
MIN
PARAMETER
ANALOG SWITCH
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
,
COM
, V
Analog Signal Range
On-Resistance
0
V+
V
V
NO NC
T
T
= +25°C
65
110
120
V+ = 2.5V, I
= 1mA,
A
COM
= 1V
R
Ω
ON
V
NO
or V
= T
to T
MAX
NC
A
MIN
Input Logic High
Input Logic Low
DYNAMIC
V
2.0
V
V
IH
V
0.6
IL
V
, V
= 2V,
L
T
A
T
A
T
A
T
A
= +25°C
45
30
50
60
35
45
NO NC
L
Turn-On Time
Turn-Off Time
t
R = 1kΩ, C = 35pF,
Figure 3
ns
ns
ON
= T
to T
MIN
MAX
MAX
V
, V
= 2V,
L
= +25°C
= T to T
NO NC
t
R = 1kΩ, C = 35pF,
Figure 3
OFF
L
MIN
Note 2: Parameters are 100% tested at +25°C only and guaranteed by correlation at the full rated temperature.
Note 3: 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 4: ∆R
= R
- R
.
ON
ON(MAX)
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 ranges.
Note 6: Guaranteed by design.
Note 7: Off-Isolation = 20log (V
/ V ), V
NO
= output, V
= input to off switch.
NO
COM
COM
10
4
_______________________________________________________________________________________
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
ON-RESISTANCE vs. COM VOLTAGE
(V+ = +3V)
ON-RESISTANCE vs. COM VOLTAGE
(V+ = +5V)
ON-RESISTANCE vs. COM VOLTAGE
80
70
60
50
40
30
20
10
60
50
40
30
20
10
0
120
A: V+ = +2V
B: V+ = +2.5V
C: V+ = +3V
D: V+ = +4.5V
E: V+ = +5V
A
T
= +85°C
A
T
= +25°C
A
T = +85°C
A
100
80
60
40
20
0
B
T
= +25°C
A
T
= -40°C
A
C
T
= -40°C
A
D
E
0
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
(V)
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
(V)
V
(V)
V
V
COM
COM
COM
ON/OFF-LEAKAGE CURRENT vs.
TEMPERATURE
SUPPLY CURRENT vs. TEMPERATURE
CHARGE INJECTION vs. COM VOLTAGE
10
14
1
V+ = +5V
12
10
8
V+ = 5V
V+ = 3V
V+ = +5V
I
COM(ON)
NO, NC
1
0.1
6
(OFF)
V- =+3V
4
0.1
0.01
2
0
0.01
-2
0.001
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
0
1
2
3
4
5
-40 -25 -10
5
20 35 50 65 80
TEMPERATURE (°C)
V
(V)
TEMPERATURE (°C)
COM
TURN-ON/TURN-OFF TIME vs.
TEMPERATURE
TURN-ON/TURN-OFF TIME vs.
SUPPLY VOLTAGE
45
60
50
40
30
20
10
0
40
35
30
t
ON
t
OFF
25
20
15
t
ON
t
OFF
10
5
V+ = +5V
0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
(V)
TEMPERATURE (°C)
V
SUPPLY
_______________________________________________________________________________________
5
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
Typical Operating Characteristics (continued)
(T = +25°C, unless otherwise noted.)
A
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
FREQUENCY RESPONSE
1
R = 600Ω
L
-5
ON-RESPONSE
-15
-25
-35
-45
-55
-65
-75
V
= 5V
P-P
IN
0.1
V
= 3V
P-P
IN
OFF-ISOLATION
-85
-95
0.01
0.01
0.1
1
10
100 200
0.01
0.1
1
10
100
FREQUENCY (MHz)
FREQUENCY (kHz)
Pin Description
POSITIVE SUPPLY
PIN
1
NAME
IN
FUNCTION
D1
V+
Digital Control Input
2
V+
Positive Supply Voltage
Ground
3
GND
NC
NO
OR
NC
COM
4
Analog Switch Normally Closed
Analog Switch Common
Analog Switch Normally Open
V
g
5
COM
NO
6
GND
D2
Applications Information
Analog Signal Levels
Analog signals can range over the supply voltage (V+
to GND) with on-resistance changing very little over the
entire range (see Typical Operating Characteristics).
The MAX4599 is bidirectional, so the NO, NC, and
COM pins can be used either as inputs or outputs.
Figure 1. Overvoltage Protection Using Two External Blocking
Diodes
reduces the analog signal range to a diode drop (about
0.7V) below V+ for D1 or to a diode drop above ground
for D2. The addition of diodes does not affect leakage.
On-resistance increases by a small amount at low sup-
ply voltages. Maximum supply voltage (V+) must not
exceed 6V.
Power-Supply Sequencing and
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply V+ before applying
analog signals or logic inputs, especially if the analog
or logic signals are not current limited. If this sequenc-
ing is not possible, and if the analog or logic inputs are
not current limited to < 20mA, add a small-signal diode
(D1) as shown in Figure 1. If the analog signal can dip
below GND, add D2. Adding protection diodes
Protection diodes D1 and D2 also protect against some
overvoltage situations. A fault voltage up to the
absolute maximum rating at an analog signal input
does not damage the device, even if the supply voltage
is below the signal voltage.
6
_______________________________________________________________________________________
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
Test Circuits/Timing Diagrams
MAX4599
V+
V+
t < 20ns
t < 20ns
f
r
+3V
0
LOGIC
INPUT
SWITCH
OUTPUT
50%
NO
OR NC
COM
V
OUT
SWITCH
INPUT
R
C
L
1k
L
t
OFF
35pF
IN
V
OUT
0.9 x V
0.9 x V
OUT
0UT
GND
LOGIC
INPUT
SWITCH
OUTPUT
0
t
ON
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
R
L
V
OUT
= V
COM
(
)
R + R
L
ON
Figure 2. Switching Time
V+
V+
MAX4599
+3V
LOGIC
INPUT
50%
0
NC
V
+3V
OUT
COM
NO
R
L
1k
C
L
35pF
IN
0.9 x V
OUT
LOGIC
INPUT
SWITCH
OUTPUT
GND
0.9 x V
OUT
(V
)
OUT
t
BBM
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
Figure 3. Break-Before-Make Interval
V+
V+
∆V
OUT
MAX4599
V
OUT
R
GEN
NC
COM
V
OUT
IN
OR NO
OFF
OFF
OFF
C
L
ON
V
GEN
GND
IN
ON
OFF
IN
V
= V+
Q = (∆V )(C )
IN
OUT
L
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
Figure 4. Charge Injection
_______________________________________________________________________________________
7
Low-Voltage, Single-Supply,
SPDT Analog Switch in SC70
Test Circuits/Timing Diagrams (continued)
V+
V+
V+
10nF
10nF
MAX4599
MAX4599
SIGNAL
V+
GENERATOR 0dBm
COM
COM
IN
0 OR
2.4V
IN
0 OR
2.4V
CAPACITANCE
METER
NC
OR NO
NC OR
NO
ANALYZER
GND
f = 1MHz
GND
R
L
Figure 5. Off-Isolation/On-Channel Bandwidth
Figure 6. Channel On/Off-Capacitance
Chip Information
TRANSISTOR COUNT: 89
Package Information
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.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2000 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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