MAX4904ETA-T [MAXIM]
Low-RON, Dual-SPST/Single-SPDT Clickless Switches with Negative Rail Capability; 低RON ，双SPST /单SPDT开关无喀嗒声，可处理负
| 型号： | MAX4904ETA-T |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-RON, Dual-SPST/Single-SPDT Clickless Switches with Negative Rail Capability |
| 文件： | 总13页 (文件大小：347K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-3775; Rev 2; 5/06
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
General Description
Features
The MAX4901–MAX4905 switches feature negative
signal capability that allows signals below ground to pass
through without distortion. The MAX4901/MAX4902 are a
dual SPST (single-pole/single-throw) and the MAX4903/
MAX4904/MAX4905 are a single SPDT (single-
pole/double-throw) configuration. These analog switches
operate from a single +1.8V to +5.5V supply and have
low 0.6 on-resistance, making them ideal for switching
audio signals.
♦ Distortion-Free Signal Throughput Down
to V - 5.5V
♦ Comparator for Headphone or
Mute Detection (MAX4905)
♦ Clickless Switches with Internal Shunt Resistors
CC
(MAX4902/MAX4904/MAX4905)
♦ 0.6 (typ) Low On-Resistance (R
♦ 0.25 On-Resistance Flatness
♦ +1.8V to +5.5V Supply Voltage
♦ 0.04% THD
)
ON
The MAX4905 includes a comparator that can be used
for headphone detection or mute/send key function. The
MAX4902/MAX4904/MAX4905 have internal shunt resis-
tors to automatically discharge any capacitance at the
NO_ and NC connection points. This reduces click-and-
pop sounds that occur when switching audio signals
between pre-charged points. A break-before-make fea-
ture and auto-discharge also help to reduce popping.
Pin Configurations
TOP VIEW
BUMPS ON BOTTOM
MAX4903/MAX4904/MAX4905
MAX4901/MAX4902
These SPST and SPDT switches are available in
space-saving 8-pin TDFN and 9-bump UCSP™ pack-
ages and operate over the -40°C to +85°C extended
temperature range.
1
2
3
1
2
3
A
B
C
A
B
C
IN
NO1
N.C.
IN1
V
COM1
NO
CC
Applications
Cell Phones
Notebook Computers
COM N.C. (CMPO) GND
V
GND
IN2
CC
PDAs and Handheld Devices MP3 Players
N.C.
COM2
N.C. (CMP-)
NC
NO2
3 x 3 UCSP
( ) MAX4905 ONLY
3 x 3 UCSP
Pin Configurations continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
Ordering Information/Selector Guide
PART
PIN-PACKAGE
TOP MARK CONFIGURATION
COMPARATOR
SHUNT
No
PKG CODE
B9-1
MAX4901EBL-T 1.5mm x 1.5mm 9 UCSP-9
AEU
AOW
AEV
AOX
AEY
AOY
AEW
AOZ
AEX
APA
2 x SPST
2 x SPST
2 x SPST
2 x SPST
1 x SPDT
1 x SPDT
1 x SPDT
1 x SPDT
1 x SPDT
1 x SPDT
No
No
No
No
No
No
No
No
Yes
Yes
MAX4901ETA-T
MAX4902EBL-T
MAX4902ETA-T
MAX4903EBL-T
MAX4903ETA-T
MAX4904EBL-T
MAX4904ETA-T
MAX4905EBL-T
MAX4905ETA-T
8 TDFN-8
1.5mm x 1.5mm 9 UCSP-9
8 TDFN-8
No
T833-2
B9-1
Yes
Yes
No
T833-2
B9-1
1.5mm x 1.5mm 9 UCSP-9
8 TDFN-8
No
T833-2
B9-1
1.5mm x 1.5mm 9 UCSP-9
8 TDFN-8
Yes
Yes
Yes
Yes
T833-2
B9-1
1.5mm x 1.5mm 9 UCSP-9
8 TDFN-8
T833-2
Note: All devices operate over the -40°C to +85°C operating temperature range.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
Continuous Power Dissipation (T = +70°C)
A
V
, IN_, CMP-......................................................-0.3V to +6.0V
8-Pin TDFN (derate 18.2mW/°C above +70°C) .........1455mW
9-Bump UCSP (derate 5.2mW/°C above +70°C).........412mW
ESD Method 3015.7............................................................. 2kV
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Bump Temperature (soldering)
CC
COM_, NO_, NC ................................(V
CMPO.........................................................-0.3V to (V
Open-Switch Continuous Current NO_, NC
(MAX4902/MAX4904/MAX4905)................................... 30mA
Closed-Switch Continuous Current COM_, NO_, NC..... 100mA
Peak Current COM_, NO_, NC
(Pulsed at 1ms, 50% duty cycle)................................ 200mA
Peak Current COM_, NO_, NC
- 6V) to (V
+ 0.3V)
+ 0.3V)
CC
CC
CC
Infrared (15s) ...............................................................+220°C
Vapor Phase (60s) .......................................................+215°C
(Pulsed at 1ms, 10% duty cycle)................................ 300mA
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
(V
= +2.7V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical values are at V
= +3.0V, T = +25°C, unless other-
CC A
CC
A
wise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
POWER SUPPLY
Power-Supply Range
V
1.8
5.5
1
CC
MAX4901–
0.001
5
V
V
= 5.5V,
= 0V or V
CC
IN_
MAX4904
Supply Current
I+
µA
CC
MAX4905
10
ANALOG SWITCH
V
_ V
COM_
,
V
5.5
-
CC
NO
V
NC
Analog Signal Range
(Note 2)
= 2.7V, V or V
NO_
V
V
CC
T
= +25°C
0.6
1.0
1.2
A
V
CC
NC
R
R
= V
- 5.5V, -1V, 0, 1V,
CC
ON(NC),
On-Resistance
T
T
= T
to
A
MIN
2V, V
I
= 100mA
ON(NO)
CC; COM
MAX
(Notes 3, 4)
T
= +25°C
0.01
0.25
0.25
0.30
0.5
A
V
= 2.7V, I
= 100mA or V
or
NO_
CC
On-Resistance Match Between
Channels
R
ON
I
NC NO_
T
T
= T
to
A
MIN
(Notes 3, 4, 5)
= 2.7V, V or V
NO_
MAX
T
A
= +25°C
V
CC
NC
= V - 5.5V, -1V, 0, 1V,
CC
On-Resistance Flatness
R
FLAT
T
T
= T
to
A
MIN
2V, V ; I
= 100mA
CC COM
0.5
MAX
(Notes 4, 6)
2
_______________________________________________________________________________________
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
ELECTRICAL CHARACTERISTICS (continued)
(V
= +2.7V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical values are at V
= +3.0V, T = +25°C, unless other-
CC A
CC
A
wise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
I or I = 10mA,
NO_ NC
V
= 2.7V
T = T
A
to T
CC
MIN
MAX
Shunt Resistance
R
30
50
SH
(MAX4902/MAX4904/
MAX4905)
V
or V
= 2.7V, switch open; V
NC
= -2.5V, +2.5V; V
NO_ COM_
T
T
= +25°C
-6
-50
-6
+6
+50
+6
CC
A
I
I
NO_(OFF),
NO_, NC Off-Leakage Current
COM_ Off-Leakage Current
nA
nA
nA
= +2.5V, -2.5V (MAX4901/
MAX4903) (Notes 3, 7)
= T
MIN
MAX
NC (OFF)
A
to T
V
V
V
= 2.7V, switch open;
T
A
= +25°C
CC
or V
= -2.5V, +2.5V;
NC
NO_
I
COM_(OFF)
T
= T
MIN
MAX
= -2.5V, +2.5V
A
COM_
-50
-6
+50
+6
to T
(MAX4901) (Note 3)
V
V
= 2.7V, switch closed;
T
A
= +25°C
CC
NC
or V
= -2.5V, +2.5V,
NO_
COM_ On-Leakage Current
I
COM_(ON)
or unconnected; V
+2.5V or unconnected (Note 3) to T
= -2.5V,
T
= T
COM_
A
MIN
-50
+50
MAX
DYNAMIC CHARACTERISTICS
V
V
= 2.7V, V
= 1.5V, V
= 1.5V, V
= 0V to V
;
CC
CC
NC
NO
IN_
Turn-On Time
t
= V
to 0; R = 50 ,
25
100
100
ns
ns
ON
IN_
CC
L
C = 5pF (Figure 1)
L
V
V
= 2.7V, V _ = 1.5V, V
= 1.5V, V
= V
to 0;
CC
CC
NC
NO
IN_
Turn-Off Time
t
= 0 to V ; R = 50 ,
15
10
OFF
IN_
CC
L
C = 5pF (Figure 1)
L
V
V
V
= 2.7V, V
= 1.5V,
NO_
T
T
= +25°C
2
1
CC
IN_
IN_
A
= V
to 0; V
= 1.5V,
Break-Before-Make Time Delay
(MAX4903/MAX4904/MAX4905)
CC
NC
t
ns
BBM
= T
MIN
= 0 to V ; R = 50 ,
A
CC
L
C = 5pF (Figure 2)
to T
MAX
L
Charge Injection
Q
V
= 0V, R = 0 , C = 1.0nF (Figure 3)
125
-70
pC
dB
COM_
S
L
f = 100kHz, V
R = 50 , C = 5pF (Figure 4)
= 1V
,
RMS
COM_
Off-Isolation (Note 8)
V
ISO
L
L
f = 100kHz, V
= 1V
,
RMS
COM_
Crosstalk
V
-75
60
dB
dB
CT
R = 50 , C = 5pF (Figure 4)
L
L
f = 10kHz, V
= 1V
,
COM_
RMS
Power-Supply Rejection Ratio
On-Channel -3dB Bandwidth
Total Harmonic Distortion
PSRR
BW
R = 50 , C = 5pF
L
L
Signal = 0dBm, R = 50 ,
C = 5pF (Figure 4)
L
L
27
MHz
%
f = 20Hz to 20kHz, V
DC bias = 0, R = 32
= 0.5V
,
COM
P-P
THD
0.04
L
_______________________________________________________________________________________
3
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
ELECTRICAL CHARACTERISTICS (continued)
(V
= +2.7V to +5.5V, T = -40°C to +85°C, unless otherwise noted. Typical values are at V
= +3.0V, T = +25°C, unless other-
CC A
CC
A
wise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
C
C
f = 1MHz, V
(Figure 5)
= 0.5V , DC bias = 0
P-P
NO_(OFF)
COM
NO_, NC Off-Capacitance
40
pF
NC(OFF)
f = 1MHz, V
(Figure 5)
= 0.5V , DC bias = 0
P-P
COM
COM On-Capacitance
DIGITAL I/O (IN_)
C
200
pF
V
COM_(ON)
V
V
V
V
V
= 2.7V to 3.6V
= 4.2V to 5.5V
= 2.7V to 3.6V
= 4.2V to 5.5V
1.4
2.0
CC
CC
CC
CC
IN_
Input Logic-High Voltage
V
IH
0.5
0.8
+1
Input Logic-Low Voltage
V
V
IL
Input Leakage Current
COMPARATOR (MAX4905)
Comparator Threshold
I
= 0V or V
-1
µA
IN
CC
V
/ 3
V
V
CC
V
-
CC
Comparator Output-High Voltage
I
I
= 1mA
SOURCE
0.4V
Comparator Output-Low Voltage
Comparator Input Leakage
= 1mA
0.4
V
SINK
V
- = 0 to 2.7V
CMP
-100
+100
nA
V
of V
= 2.7V, V
= 0V to V , from 50%
CC
CC
CMP-
Comparator Switching Time
1
2
µs
- to 50% of V
CMP CMPO
Note 1: UCSP and TDFN parts are 100% tested at T = +25°C only, and guaranteed by design over the specified temperature
A
range.
Note 2: Signals on COM_, NO_, or NC exceeding V
rent rating.
are clamped by internal diodes. Limit forward-diode current to maximum cur-
CC
Note 3: Guaranteed by design.
Note 4: I
Note 5:
for UCSP is 10mA.
COM
R
= R
– R
.
ON
ON(MAX)
ON(MIN)
Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 7: The MAX4902/MAX4904/MAX4905 have an internal shunt resistor when, in off-state, will determine off-current.
Note 8: Off-Isolation = 20log (V
/ V ), V
= output, V = input to off switch.
10 COM NO COM
NO
4
_______________________________________________________________________________________
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
Typical Operating Characteristics
(T = +25°C, V
= 3.0V, unless otherwise noted.)
CC
A
ON-RESISTANCE vs. COM VOLTAGE
ON-RESISTANCE vs. COM VOLTAGE
ON-RESISTANCE vs. COM VOLTAGE
6
5
4
3
2
1
0
1.2
1.0
0.8
0.6
0.4
0.2
0
1.2
1.0
0.8
0.6
0.4
0.2
0
V
= 3.0V
V
= 5.0V
CC
CC
V
= 1.8V
= 2.0V
CC
T
T
= +85 C
A
T
= +85 C
A
= +25 C
= -40 C
V
A
A
CC
T
= +25 C
A
T
V
= 2.3V
CC
V+ = 2.5V
V+ = 3.0V
V+ = 5.0V
T
= -40 C
A
-4 -3 -2 -1
0
1
2
3
4
5
-1
0
1
2
3
4
5
-3
-2
-1
0
1
2
3
COM VOLTAGE (V)
COM VOLTAGE (V)
COM VOLTAGE (V)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(MAX4901–MAX4904)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(MAX4905)
TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
0.6
6
5
4
3
2
1
0
70
60
50
40
30
20
10
0
0.5
0.4
0.3
0.2
0.1
0
t
ON
t
OFF
1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
SUPPLY VOLTAGE (V)
1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
SUPPLY VOLTAGE (V)
1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
SUPPLY VOLTAGE (V)
TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
LOGIC THRESHOLD vs. SUPPLY VOLTAGE
2.0
1.6
1.2
0.8
0.4
0
40
30
20
10
0
V
= 3.0V
CC
V
RISING
IN
t
ON
V
FALLING
IN
t
OFF
1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
SUPPLY VOLTAGE (V)
-40
-15
10
35
60
85
TEMPERATURE ( C)
_______________________________________________________________________________________
5
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
Typical Operating Characteristics (continued)
(T = +25°C, V
A
= 3.0V, unless otherwise noted.)
CC
ON-/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
CHARGE INJECTION
vs. V
FREQUENCY RESPONSE
COM
1000
100
10
0
-3
300
V
= 3.0V
CC
V
= 3.0V
C = 1nF
L
CC
I
200
100
COM(ON)
V
= 5.0V
CC
-6
V
= 2.0V
CC
I
COM(OFF)
-9
0
-100
-200
-12
-15
-18
1
-40
-15
10
35
60
85
0.001 0.01
0.1
1
10
100
-3 -2 -1
0
1
2
3
4
5
TEMPERATURE ( C)
V
(V)
FREQUENCY (MHz)
COM
OFF-ISOLATION AND CROSSTALK
vs. FREQUENCY
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
1
0
-20
100
80
60
40
20
0
V
= 3.0V
CC
V
= 3.0V
V
= 1V
RMS
CC
CC
R = 32
L
DC BIAS = 3V
C = 5pF
L
R = 50
L
-40
OFF-ISOLATION
-60
0.1
CROSSTALK
-80
-100
-120
0.01
100
10k
0.001 0.01
0.1
1
10
100
10
1k
100k
100
1k
10k
100k
1M
FREQUENCY (Hz)
FREQUENCY (MHz)
FREQUENCY (Hz)
COMPARATOR THRESHOLD
vs. TEMPERATURE
COMPARATOR THRESHOLD
vs. TEMPERATURE
1.02
1.75
1.70
1.65
1.60
1.55
V = 3.0V
CC
V
= 5.0V
CC
1.00
0.98
0.96
0.94
0.92
V
RISING
CMP-
V
RISING
CMP-
V
FALLING
CMP-
V
FALLING
CMP-
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE ( C)
TEMPERATURE ( C)
6
_______________________________________________________________________________________
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
Pin Description (MAX4901/MAX4902 Dual-SPST Switches)
PIN
NAME
FUNCTION
TDFN
UCSP
Positive Supply-Voltage Input. Bypass V to GND with a 0.1µF capacitor as close
CC
1
B1
V
CC
to V
as possible.
CC
2
A1
B2
COM1
N.C.
Analog Switch 1, Common Terminal
—
No Connection. Leave N.C. unconnected.
Analog Switch 1, Normally Open Terminal. NO1 (MAX4902) has a shunt resistor to
GND when the switch is in open position.
3
A2
NO1
Digital Control Input for Analog Switch 1. A logic high on IN1 connects COM1 to
NO1 and a logic low opens the switch.
4
5
6
A3
B3
C3
IN1
GND
IN2
Ground
Digital Control Input for Analog Switch 2. A logic high on IN2 connects COM2 to
NO2 and a logic low opens the switch.
Analog Switch 2, Normally Open Terminal. NO2 has a shunt resistor to GND when
the switch is in open position (MAX4902).
7
C2
NO2
8
C1
—
COM2
EP
Analog Switch 2, Common Terminal
EP
Exposed Pad. Connect exposed pad to GND.
Pin Description (MAX4903/MAX4904/MAX4905 SPDT Switches)
PIN
NAME
FUNCTION
TDFN
UCSP
Positive Supply-Voltage Input. Bypass V to GND with a 0.1µF capacitor as close
CC
1
A1
V
CC
to V
as possible.
CC
Analog Switch, Normally Open Terminal. NO has a shunt resistor to GND when the
switch is in open position (MAX4904/MAX4905).
2
3
A2
A3
NO
IN
Digital Control Input. Logic low on IN connects COM to NC and logic high connects
COM to NO.
N.C.
CMPO
GND
N.C.
No Connection. Leave N.C. unconnected (MAX4903/MAX4904).
Comparator Output (MAX4905)
4
5
6
B2
B3
C3
Ground
No Connection. Leave N.C. unconnected (MAX4903/MAX4904).
Comparator Input (MAX4905)
CMP-
Analog Switch, Normally Closed Terminal. NC has a shunt resistor to GND when the
switch is in open position (MAX4904/MAX4905).
7
C2
NC
8
B1
C1
—
COM
N.C.
EP
Analog Switch, Common Terminal
—
EP
No Connection. Leave N.C. unconnected (MAX4903/MAX4904/MAX4905)
Exposed Pad. Connect exposed pad to GND.
_______________________________________________________________________________________
7
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
Typical Operating Circuit
AUDIO
SOURCE
1
V
CC
MAX4905
NC
NO
COM
IN
SPEAKER
AUDIO
SOURCE
2
V
CC
3
V
CC
DirectDrive
SOURCE
CMPO
CMP-
MUTE
BUTTON
GND
Analog Signal Levels
Detailed Description
The on-resistance of the MAX4901–MAX4905 changes
very little for analog input signals across the entire sup-
ply-voltage range (see the Typical Operating
Characteristics). The switches are bidirectional.
The MAX4901–MAX4905 are low on-resistance, low-volt-
age, dual-SPST and single-SPDT analog switches that
operate from a +1.8V to +5.5V supply and are fully speci-
fied for nominal 3.0V applications. The devices feature a
negative signal capability that allows signals below
ground to pass through without distortion and
have break-before-make switching (MAX4903/
MAX4904/MAX4905).
The MAX4901–MAX4905 pass signals as low as VCC
-
5.5V, including signals below ground with minimal dis-
tortion. Note that there are shunt resistors on NO_ and
NC when they are unconnected to COM_ for the
MAX4902/MAX4904/MAX4905.
The MAX4905 features a comparator that can be used for
headphone or mute detection. The comparator threshold
Comparator (MAX4905)
The MAX4905 includes a comparator that can be used
for mute and headphone detection functions. The posi-
tive terminal of the comparator is internally set to VCC / 3.
When the negative terminal (CMP-) is below the thresh-
old, the comparator output (CMPO) is a logic high.
is internally generated to be approximately 1/3 of V
.
CC
The MAX4902/MAX4904/MAX4905 feature an internal
shunt resistor to discharge any capacitance at NO_ and
NC connection points. This reduces the click-and-pop
sounds that occur when switching audio signals.
The comparator threshold of VCC / 3 allows for detection
of headphones because headphone audio signals are
typically biased to VCC / 2.
Applications Information
Digital Control Inputs
The MAX4901–MAX4905 logic inputs accept up to
+5.5V, regardless of supply voltage. For example, with
a +3.3V supply, IN_ can be driven low to GND and
high to +5.5V, allowing for mixing of logic levels in a
system. Driving IN_ rail-to-rail minimizes power
consumption. For a +1.8V supply voltage, the logic
thresholds are 0.5V (low) and 1.4V (high). For a +5V
supply voltage, the logic thresholds are 0.8V (low) and
2.0V (high).
Shunt Resistor
(MAX4902/MAX4904/MAX4905)
The 50 shunt resistors on the MAX4902/MAX4904/
MAX4905 automatically discharge any capacitance at
the NC or NO_ terminals when they are unconnected to
COM_. This reduces audio click-and-pop sounds that
occur when switching between audio sources.
8
_______________________________________________________________________________________
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
Audible clicks and pops are caused when a step DC
UCSP Applications Information
voltage is switched into the speaker. By automatically
For the latest application details on UCSP construction,
discharging the side that is not connected, any resid-
dimensions, tape carrier information, PC board tech-
ual DC voltage is removed, thereby reducing the clicks
niques, bump-pad layout, and recommended reflow
and pops.
temperature profile, as well as the latest information on
reliability testing results, refer to the Application Note:
UCSP—A Water-Level Chip-Scale Package on Maxim’s
web site at www.maxim-ic.com/ucsp.
Power-Supply Sequencing and Overvoltage
Protection
Caution: Do not exceed the absolute maximum rat-
ings because stresses beyond the listed ratings
may cause permanent damage to the device.
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply VCC before applying
analog signals, especially if the analog signal is not
current-limited.
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
NOTE: N.C. IS NO CONNECTION (SEE PIN DESCRIPTION TABLE)
MAX4901/MAX4902
MAX4903/MAX4904
MAX4905
VCC
VCC
VCC
COM2
NO2
IN2
COM
NC
COM
NC
1
8
1
8
1
8
COM1
NO1
IN1
NO
IN
NO
IN
7
6
5
7
6
5
7
6
5
2
3
4
2
3
4
2
3
4
N.C.
GND
CMP-
GND
-
+
N.C.
CMPO
GND
V
/3
CC
*EP
*EP
*EP
TDFN
TDFN
*EXPOSED PAD CONNECTED TO GND
*EXPOSED PAD CONNECTED TO GND
*EXPOSED PAD CONNECTED TO GND
MAX4904/
MAX4905
MAX4901–MAX4905
NO
OFF
ON
NC
ON
IN
0
NCS*
OFF
ON
NOS*
ON
1
OFF
OFF
*NCS AND NOS REFER TO
NORMALLY CLOSED
SHUNT REGISTER
_______________________________________________________________________________________
9
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
Test Circuits/Timing Diagrams
MAX4901–MAX4905
V
V
CC
CC
t
< 5ns
r
f
V
CC
t < 5ns
LOGIC
INPUT
50%
0V
COM_
NC OR NO_
V
OUT
t
OFF
R
L
C
L
IN_
GND
V
OUT
0.9 x V
0.9 x V
OUT
0UT
LOGIC
INPUT
SWITCH
OUTPUT
0V
t
ON
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
IN DEPENDS ON SWITCH CONFIGURATION;
INPUT POLARITY DETERMINED BY SENSE OF SWITCH.
R
L
V
OUT
= V OR V
NC NO_
(
)
R + R
L
ON
Figure 1. Switching Time
V
CC
MAX4901–MAX4905
V
CC
LOGIC
INPUT
50%
V
CC
0V
NO_ OR NC
V
OUT
COM_
R
L
C
L
IN_
LOGIC
INPUT
GND
0.9 x V
OUT
V
OUT
t
BBM
C INCLUDES FIXTURE AND STRAY CAPACITANCE.
L
Figure 2. Break-Before-Make Interval
V
V
CC
CC
V
OUT
MAX4901–MAX4905
V
OUT
R
GEN
COM_
NC
V
OUT
IN
OR NO_
OFF
OFF
OFF
OFF
C
L
ON
ON
V
GEN
GND
IN_
V
TO V
IH
IL
IN
Q = (
V
)(C )
OUT L
LOGIC-INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
Figure 3. Charge Injection
10 ______________________________________________________________________________________
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
Test Circuits/Timing Diagrams (continued)
10nF
+5V
V
V
OUT
OFF-ISOLATION = 20log
LOSS = 20log
V
IN
NETWORK
ANALYZER
50
50
OUT
V
CC
V
V
IN
V
IN
0V OR V
COM1
CC
IN_
V
OUT
CROSSTALK = 20log
MAX4901–MAX4905
V
IN
MEAS
50
OUT
REF
NO1*
NC1
GND
50
50
*FOR CROSSTALK THIS PIN IS NO2.
NC2 AND COM2 ARE OPEN.
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC TERMINAL ON EACH SWITCH.
-3dB BANDWIDTH IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 4. -3dB Bandwidth, Off-Isolation, and Crosstalk
V
Chip Information
CC
10nF
PROCESS: BiCMOS
V
CC
COM_
MAX4901–
MAX4905
IN
V
IL
OR V
IH
CAPACITANCE
METER
NC_ or
NO_
f = 1MHz
GND
Figure 5. Channel Off-/On-Capacitance
______________________________________________________________________________________ 11
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
PACKAGE OUTLINE, 3x3 UCSP
1
21-0093
K
1
12 ______________________________________________________________________________________
Low-R , Dual-SPST/Single-SPDT Clickless
ON
Switches with Negative Rail Capability
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
1
H
21-0137
2
PACKAGE VARIATIONS
COMMON DIMENSIONS
MIN. MAX.
SYMBOL
PKG. CODE
T633-1
N
6
D2
1.50±0.10 2.30±0.10 0.95 BSC
1.50±0.10 2.30±0.10
E2
e
JEDEC SPEC
MO229 / WEEA
MO229 / WEEA
MO229 / WEEC
MO229 / WEEC
MO229 / WEEC
b
[(N/2)-1] x e
1.90 REF
1.90 REF
1.95 REF
1.95 REF
1.95 REF
2.00 REF
2.00 REF
2.40 REF
2.40 REF
0.40±0.05
0.40±0.05
0.30±0.05
0.30±0.05
0.30±0.05
A
0.70
2.90
2.90
0.00
0.20
0.80
3.10
3.10
0.05
0.40
T633-2
6
D
E
0.95 BSC
T833-1
8
1.50±0.10 2.30±0.10 0.65 BSC
1.50±0.10 2.30±0.10 0.65 BSC
1.50±0.10 2.30±0.10 0.65 BSC
T833-2
8
A1
L
T833-3
8
T1033-1
T1033-2
T1433-1
T1433-2
10
10
14
14
1.50±0.10 2.30±0.10 0.50 BSC MO229 / WEED-3 0.25±0.05
k
0.25 MIN.
0.20 REF.
1.50±0.10 2.30±0.10
0.25±0.05
0.20±0.05
0.20±0.05
A2
0.50 BSC MO229 / WEED-3
1.70±0.10 2.30±0.10 0.40 BSC
1.70±0.10 2.30±0.10 0.40 BSC
- - - -
- - - -
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
2
-DRAWING NOT TO SCALE-
H
21-0137
2
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13
© 2006 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
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