MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
General Description
Benefits and Features
The MAX14759/MAX14761/MAX14763 analog switches
are capable of passing bipolar signals that are beyond
their supply rails. These devices operate from a single
+3.0V to +5.5V supply and support signals in the -25V
to +25V range.
S Simplify Power-Supply Requirements
+3.0V to +5.5V Supply Range
-25V to +25V Signal Range
S High Performance
Low 1I (max) or 2I (max) On-Resistance
Low 2.4mI (typ) and 5.1mI (typ) RON Flatness
500mA (max) Switch Current for MAX14759
Thermal Shutdown Protection
-40NC to +85NC Operating Temperature Range
High Bandwidth: 100MHz (typ) Insertion Loss
High-ESD Protection Up to 2kV
The MAX14759 is a single-pole/single-throw (SPST) analog switch, while the MAX14761 is a dual-SPST analog
switch. The MAX14763 is a single-pole/double-throw
(SPDT) analog switch.
The MAX14759 features 1I (max) on-resistance with
a Q200nA (max) on-leakage current. The MAX14761/
MAX14763 feature 2I (max) on-resistance with a Q100nA
(max) on-leakage current. The low on-resistance and
high bandwidth allow use in digital- and analog-signal
switching applications.
S Save Board Space
Small 8-Pin and 10-Pin TDFN Packages
Applications
The MAX14759/MAX14763 are available in an 8-pin
(3mm x 3mm) TDFN package. The MAX14761 is available in a 10-pin (3mm x 3mm) TDFN package. These
devices are specified over the -40NC to +85NC extended
temperature range.
Industrial Measurement Systems
Ordering Information/Selector Guide appears at end of data
sheet.
Opto-Relay Replacement
Instrumentation Systems
RS-485 Termination Switching
CAN Bus Termination Switching
Medical Systems
ATE Systems
For related parts and recommended products to use with this part, refer
to www.maximintegrated.com/MAX14759.related.
Audio Signal Routing and Switching
Functional Diagrams/Truth Tables
VP
VCC
VCC
VCC
MAX14759
MAX14761
MAX14763
SUPPLY
GENERATION
A
VN
VP
B
EN
SUPPLY
GENERATION
A1
VN
VP
B1
A1
EN1
COM
A2
A2
GND
VN
SUPPLY
GENERATION
B2
SEL
EN2
GND
EN
GND
A
EN1
A1
EN2
A2
SEL
A1
0
OPEN
0
CLOSED
1
CLOSED
1
OPEN
0
OPEN
0
CLOSED
OPEN
1
CLOSED
1
OPEN
CLOSED
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
A2
19-6051; Rev 1; 8/12
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND, unless otherwise noted.)
VCC...........................................................................-0.3V to +6V
EN, EN1, EN2, SEL................................ -0.3V to + (VCC + 0.3V)
A, B, A1, A2, B1, B2, COM..................... (VN - 0.3V) to Lesser of
(VP + 0.3V) or (VN + 52V)
VP..................................................................... -0.3V to Lesser of
(+52V) or (VN + 70V)
VN.........................Greater of (VCC - 40V) or (VP - 70V) to +0.3V
VP to VN.................................................................. -0.3V to +70V
Continuous Current Through Switch (MAX14759)......... Q500mA
Continuous Current Through Switch
(MAX14761, MAX14763)............................................ Q250mA
Continuous Power Dissipation (TA = +70NC)
8-Pin TDFN Package
(derate 24.4mW/NC above +70NC)..........................1951.2mW
10-Pin TDFN Package
(derate 24.4mW/NC above +70NC)..........................1951.2mW
Operating Temperature Range........................... -40NC to +85NC
Storage Temperature Range............................. -65NC to +160NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
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.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
8-Pin TDFN
Junction-to-Ambient Thermal Resistance (qJA)...........48°C/W
Junction-to-Case Thermal Resistance (qJC)..................8°C/W
10-Pin TDFN
Junction-to-Ambient Thermal Resistance (qJA)...........41°C/W
Junction-to-Case Thermal Resistance (qJC)..................9°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(VCC = +3.0V to +5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = 5V and TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
3.0
5.5
V
(MAX14759)
-500
+500
(MAX14761/MAX14763)
-250
+250
DC CHARACTERISTICS
Power Supply Range
VCC
Continuous Current Through
Switch
IA_
Supply Current
Analog-Signal Range
On-Resistance
On-Resistance Flatness
A, A1, A2 Off-Leakage Current
COM, B, B1, B2 Off-Leakage
Current
Maxim Integrated
VCC ≤ 4.7V
VEN_ = VCC
VEN_ = VCC/2
4.1
10
4.1
10
VCC > 4.7V
VEN_ = VCC
VEN_ = VCC/2
2.5
6
2.5
6
ICC
VCOM,
VA_, VB_
RON
DRON
IA_(OFF)
Switch open or closed
-25
+25
IB = Q500mA, VA = Q25V (MAX14759)
ICOM or IB_ = Q250mA, VA_= Q25V
(MAX14761/MAX14763)
0.6
1
1.2
2
-25V < VA < +25V, IB = Q500mA (MAX14759)
2.4
-25V < VA_ < +25V, IB_ or ICOM = Q250mA
(MAX14761/MAX14763)
5.1
mA
V
I
mI
VA = +25V, VB = 0V, Figure 1 (MAX14759)
-250
+250
VA_ = +25V, VCOM or VB_= 0V, Figure 1
(MAX14761/MAX14763)
-250
+250
-100
+100
-100
+100
VCOM or VB = 15V, VA_ = 0V, Figure 1
ICOM(OFF), (MAX14759/MAX14763)
IB_(OFF)
VB_ = 15V, VA_ = 0V, Figure 1 (MAX14761)
mA
nA
nA
2
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +3.0V to +5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at VCC = 5V and TA = +25°C.) (Note 2)
PARAMETER
On-Leakage Current
SYMBOL
ION
CONDITIONS
MIN
VA = ±25V, B1, B2, or COM are unconnected,
Figure 1 (MAX14759)
TYP
MAX
-200
+200
VA = ±25V, B1, B2, or COM are unconnected,
Figure 1 (MAX14761)
-100
+100
VA = ±25V, B1, B2, or COM are unconnected,
Figure 1 (MAX14763)
-250
+250
UNITS
nA
DIGITAL LOGIC
Input-Voltage Low
VIL
VCC = 3.0V
0.7
VCC = 3.6V
0.7
VCC = 4.5V
0.8
VCC = 5.5V
Input-Voltage High
Input Current
VIH
0.8
VCC = 3.0V
1.7
VCC = 3.6V
1.9
VCC = 4.5V
2.0
VCC = 5.5V
2.1
IL
V
V
-1
+1
µA
AC CHARACTERISTICS
Power-On Time
tPWRON
CVP = CVN = 100nF (Note 3)
tON
VA_ = Q10V, RL = 10kI, Figure 2 (MAX14759/
MAX14761)
Enable Turn-Off Time
Break-Before-Make Interval
50
ms
152
300
Fs
1.12
1.8
ms
tOFF
VA_ = Q10V, RL = 10kI, Figure 2 (MAX14763)
VA_ = Q10V, RL = 10kI, Figure 2
1000
Fs
tBBM
VA_ = 1VRMS, RL = 10kI, Figure 3 (MAX14763)
740
Fs
Off-Isolation
VISO
VA_ = 1VRMS, f = 100kHz, RL = 50I,
CL = 15pF, Figure 4
-77
dB
Crosstalk
VCT
RS = RL = 50I, f = 100kHz, VCOM = 1VRMS,
Figure 5 (MAX14763)
-83
dB
-3dB Bandwidth
BW
RS = 50I, RL = 50I , VA_ = 1VP-P, Figure 6
100
MHz
0.0012
%
1370
pC
58
pF
Enable Turn-On Time
Total Harmonic Distortion Plus
Noise
Charge Injection
Input Capacitance
THD+N
Q
CIN
RS = RL = 1kI, f = 20Hz to 20kHz
VA_ = GND, CL = 1nF, Figure 7
At A, A1, A2, B, B1, B2, and COM pins
300
THERMAL PROTECTION
Thermal Shutdown Temperature
tHYST
+154
NC
Shutdown Temperature Hysteresis
tSHUT
24
NC
Q2
kV
ESD PROTECTION
All Pins
Human Body Model
Note 2: All devices are 100% production tested at TA = +25NC. Specifications over operating temperature range are guaranteed
by design.
Note 3: The power-on time is defined as the settling time for the charge pump’s output to reach steady-state value within 1%.
Maxim Integrated
3
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Test Circuits/Timing Diagrams
+5V
1µF
VCC
VCC
MAX14759
MAX14761
MAX14763
MAX14759
MAX14761
MAX14763
B_/COM
A_
A
+5V
1µF
A
A
EN_/SEL
SWITCH
OPEN
B_/COM
A_
UNCONNECTED
EN_/SEL
SWITCH
CLOSED
GND
GND
OFF-LEAKAGE CURRENT
ON-LEAKAGE CURRENT
Figure 1. Leakage Current Measurement
+5V
1µF
VCC
LOGIC
INPUT
MAX14759
MAX14761
MAX14763
+10V
A_
0
B_/COM
VOUT
RL
EN_/SEL
LOGIC
INPUT
SWITCH
OUTPUT
(VOUT)
50%
50%
tON
tOFF
0.9 x VOUT
0.1 x VOUT
GND
Figure 2. Switching Time
Maxim Integrated
4
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Test Circuits/Timing Diagrams (continued)
+5V
1µF
VCC
A1
+10V
+5V
LOGIC
INPUT
MAX14763
0V
COM
A2
VOUT
CL
RL
SEL
10kI
LOGIC
INPUT
50%
SWITCH
OUTPUT
(VOUT)
GND
0.8 x VOUT
tBBM
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 3. Break-Before-Make
+5V
1µF
OFF-ISOLATION = 20LOG
VCC
VB_/COM
VA_
MAX14759
MAX14761
MAX14763
A_
B_/COM
ANALYZER
RL
SIGNAL
GENERATOR
CL
EN_/SEL
SWITCH
OPEN
GND
Figure 4. Off-Isolation
Maxim Integrated
5
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Test Circuits/Timing Diagrams (continued)
+5V
1µF
VCC
CROSSTALK = 20LOG
VCOM
VA2
MAX14763
A2
ANALYZER
RL
COM
SIGNAL
GENERATOR
CL
A1
GND
SEL
50I
Figure 5. Crosstalk
+5V
1µF
MAX14759
MAX14761
MAX14763
+5V
ON-LOSS = 20LOG
NETWORK
ANALYZER
VCC
A_
RS
VIN
VOUT
VIN
VIN
RS
EN_/SEL
B_/COM
VOUT
MEAS
REF
RL
RL
GND
Figure 6. Insertion Loss
Maxim Integrated
6
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Test Circuits/Timing Diagrams (continued)
+5V
1µF
VCC
A_
+5V
LOGIC
INPUT
MAX14759
MAX14761
MAX14763
ON
OFF
0V
VOUT
B_/COM
CL = 1nF
EN_/SEL
LOGIC
INPUT
OFF
SWITCH
OUTPUT
(VOUT)
DVOUT
Q = CL x DVOUT
GND
Figure 7. Charge Injection
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
1.8
1.6
1.8
MAX14761
MAX14759
1.0
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
-25 -20 -15 -10 -5
0
5
VB_/COM (V)
Maxim Integrated
10 15 20 25
1.2
1.2
MAX14761
MAX14759
VCC = 5V, IB = 500mA
1.6
1.4
1.2
RON (I)
RON (I)
1.4
1.0
VCC = 5V, IB_ = 250mA (MAX14761),
IB = 500mA (MAX14759)
MAX14759 toc03
1.6
2.0
RON (I)
1.8
VCC = 3.3V, IB_ = 250mA (MAX14761),
IB = 500mA (MAX14759)
MAX14759 toc01
2.0
ON-RESISTANCE vs. TEMPERATURE
(MAX14759)
ON-RESISTANCE vs. VCOM
MAX14759 toc02
ON-RESISTANCE vs. VB_/COM
TA = +85°C
TA = +25°C
0.9
0.6
0.3
TA = -40°C
0
-25 -20 -15 -10 -5
0
5
VCOM (V)
10 15 20 25
-25 -20 -15 -10 -5
0
5
10 15 20 25
VCOM (V)
7
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
ON-RESISTANCE vs. VCOM
(MAX14761)
TA = +25°C
1.5
1.2
0.9
0.6
60
40
ON-LEAKAGE
OFF-LEAKAGE
20
TA = -40°C
MAX14759 toc06
80
1.8
51
41
LEAKAGE CURRENT (nA)
TA = +85°C
2.1
RON (I)
100
LEAKAGE CURRENT vs. TEMPERATURE
(MAX14761)
MAX14759 toc05
2.4
VCC = 5V, IB_ = 250mA
LEAKAGE CURRENT (nA)
2.7
MAX14759 toc04
3.0
LEAKAGE CURRENT vs. TEMPERATURE
(MAX14759)
31
OFF-LEAKAGE
21
ON-LEAKAGE
11
0.3
0
0
5
0
10 15 20 25
1
-15
-40
VCOM (V)
10
35
60
85
1200
TA = +25°C
1000
800
TA = -40°C
600
400
VEN = VCC (MAX14759)
4.5
4.0
SUPPLY CURRENT (mA)
CHARGE INJECTION (pC)
TA = +85°C
35
60
85
3.5
3.0
2.5
2.0
1.5
1.0
200
0.5
0
-25 -20 -15 -10 -5
0
5
0
10 15 20 25
-40
-15
VB (V)
10
35
60
85
TEMPERATURE (°C)
CROSSTALK vs. FREQUENCY
OFF-ISOLATION vs. FREQUENCY
-20
OFF-ISOLATION (dB)
-20
-40
-60
-80
MAX14759 toc10
0
MAX14759 toc09
0
CROSSTALK (dB)
10
SUPPLY CURRENT vs. TEMPERATURE
5.0
MAX14759 toc07
MAX14759
1400
-40
-60
-80
-100
-100
0.01
0.1
1
FREQUENCY (MHz)
Maxim Integrated
-15
TEMPERATURE (°C)
CHARGE INJECTION vs. VB
1600
-40
TEMPERATURE (°C)
MAX14759 toc08
-25 -20 -15 -10 -5
10
100
0.01
0.1
1
10
100
FREQUENCY (MHz)
8
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
INSERTION LOSS vs. FREQUENCY
-4
MAX14759 toc12
MAX14759, RL = 50I
0.018
0.016
0.014
-8
THD+N (%)
INSERTION LOSS (dB)
THD+N vs. FREQUENCY
0.020
MAX14759 toc11
0
-12
0.012
0.010
0.008
0.006
0.004
-16
0.002
0
-20
1
10
100
0.1
0.01
1000
MAX14759 toc13
500
100
-40
-60
MAX14759
400
TURN-ON/OFF TIME (µs)
tOFF
300
200
tON
100
-80
0
-100
0.1
0.01
1
10
-25 -20 -15 -10 -5
100
0
5
10 15 20 25
FREQUENCY (kHz)
VB_ /COM (V)
MAX14761 CHARGE-PUMP NOISE
(SWITCHES DISABLED)
MAX14761 CHARGE-PUMP NOISE
(SWITCH ENABLED)
0
MAX14759 toc15
0
-20
MAGNITUDE (dBm)
-20
-40
-60
-80
-100
MAX14759 toc16
PSRR (dB)
-20
MAGNITUDE (dBm)
10
TURN-ON/OFF TIME vs. VB_/COM
PSRR vs. FREQUENCY
0
-40
-60
-80
-100
-120
-120
10
20
30
40
50
60
70
FREQUENCY (MHz)
Maxim Integrated
1
FREQUENCY (kHz)
FREQUENCY (MHz)
MAX14759 toc14
0.1
0.01
80
90 100
10
20
30
40
50
60
70
80
90 100
FREQUENCY (MHz)
9
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Pin Configurations
TOP VIEW
EN
N.C.
VP
A
EN1
EN2
A1
VP
A2
SEL
A1
VP
A2
8
7
6
5
10
9
8
7
6
8
7
6
5
MAX14761
MAX14759
*EP
+
MAX14763
*EP
+
*EP
+
1
2
3
4
1
2
3
4
5
1
2
3
4
VCC
GND
VN
B
VCC
GND
B1
VN
B2
VCC
GND
VN
COM
TDFN
*CONNECT EXPOSED PAD (EP) TO VN.
Pin Description
PIN
MAX14759 MAX14761 MAX14763
NAME
FUNCTION
1
1
1
VCC
Positive-Supply Voltage Input. Bypass VCC to GND with a 1FF ceramic
capacitor placed as close as possible to the device.
2
2
2
GND
Ground
3
4
3
VN
Negative Voltage Output. Bypass VN to GND with a 0.1FF, 50V ceramic
capacitor placed as close as possible to the device.
4
—
—
B
Analog Switch Common Terminal
—
—
4
COM
5
—
—
A
Analog Switch Normally Open Terminal
6
7
6
VP
Positive Voltage Output. Bypass VP to GND with a 0.1FF, 50V ceramic
capacitor placed as close as possible to the device.
7
—
—
N.C.
8
—
—
EN
Switch Control Input. Drive EN high to close the switch or drive EN low to open
the switch.
—
8
7
A1
Analog Switch 1 Normally Closed Terminal
Maxim Integrated
Analog Switch Common Terminal
No Connection. Leave unconnected.
10
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Pin Description (continued)
PIN
MAX14759 MAX14761 MAX14763
—
3
—
NAME
B1
FUNCTION
Analog Switch 1 Common Terminal
—
6
5
A2
Analog Switch 2 Normally Open Terminal
—
5
—
B2
Analog Switch 2 Common Terminal
—
10
—
EN1
Switch 1 Control Input. Drive EN1 high to open switch 1 or drive EN1 low to
close switch 1.
—
9
—
EN2
Switch 2 Control Input. Drive EN2 high to close switch 2 or drive EN2 low to
open switch 2.
—
—
8
SEL
Switch Control Input. Drive SEL low to connect the COM terminal to A1 or drive
SEL high to connect the COM terminal to A2.
—
—
—
EP
Exposed Pad. Connect EP to VN. EP is not intended as an electrical
connection.
Detailed Description
The MAX14759/MAX14761/MAX14763 are analog switches
capable of handling signals above and below their rails.
These devices operate from a single +3.0V to +5.5V supply and support signals in the -25V to +25V range. The
low on-resistance and high bandwidth allow for use in
digital- and analog-signal switching applications.
Integrated Bias Generation
The MAX14759/MAX14761/MAX14763 contain a total of
three charge pumps to generate bias voltages for the
internal switches: a 5V regulated charge pump, a positive high-voltage (+35V) charge pump, and a negative
high-voltage (-27V) charge pump. When VDD is above
4.7V (typ), the 5V regulated charge pump is bypassed,
and VDD provides the input for the high-voltage charge
pumps, reducing overall supply current. An external
0.1µF capacitor is required for each high-voltage charge
pump between VP/VN and GND.
Analog Signal Range
The devices switch signals in the range from -25V to +25V
that are above and below their rails. The on-resistance for
these devices exhibit a high degree of flatness of 2.4mI
(MAX14759 typ) and 5.1mI (MAX14761/MAX14763 typ)
over the whole input voltage range of -25V to +25V. The
analog switches allow bidirectional current flow, so A, A1,
Maxim Integrated
A2, B, B1, B2, and COM can be used as either inputs or
outputs.
Bypass Capacitors
Bias stabilizing capacitors are required on the VP and VN
pins. 1FF ceramic capacitors are suggested for effective
operation. VP and VN are not intended as a power supply
for other circuitry.
Applications Information
Nonpowered Condition
The MAX14759/MAX14761/MAX14763 can tolerate input
voltages on the A, B, or COM pins in the ±25V range
when it is not powered. When VDD = 0V, the DC input
leakage current into the A, B, or COM pins is typically
below 1µA. Some devices can have a larger leakage
current up to the mA range due to technology spread.
With VDD not powered, internal diodes between the
analog pins and the VP and VN charge up the external
capacitors on VP and VN when positive and/or negative
voltages are applied to these pins. This causes transient
input current flow.
Large dv/dt on the inputs causes large capacitive charging currents, which have to be limited to 300mA to avoid
destroying the internal diodes. Hence, the 100nF capacitors on VP and VN, the dv/dt must be limited to 3V/µs. Once
the capacitors reach their final voltage, the input current
decays to the leakage current levels mentioned above.
11
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Differential Termination Resistor Switch
The MAX14759 can be used to switch a differential termination resistor in or out. In RS-485 and CAN applications,
both ends of high-speed transmission lines require termination. Figures 8 and 9 show an application of RS-485
and CAN termination using two equal resistors. These
switches support RS-485’s high -7V to +12V commonmode range.
The MAX14761 is ideal for switching in fail-safe biasing
resistors in RS-485 applications, as shown in Figures 11
and 12.
Audio Amplifier Switch
The MAX14763 is used for selecting between audio
amplifier sources to drive loudspeaker applications
(Figures 13 and 14.)
In RS-232/RS-485 multiprotocol applications, the
MAX14759 can be used for switching in the line-terminating resistors for RS-485 usage, and can disable the
termination resistor for RS-232 operation, as shown in
Figure 10.
VCC
A
RT/2
MAX14840
TERMINATION
CONTROL
EN
A
B
MAX14759
RT/2
GND
Figure 8. RS-485 Termination Switch
CANH
RT/2
MAX3051
CTRL
EN
RT/2
A
B
RT/2
A
MAX14759
B
MAX14759 EN
CTRL
MAX3051
RT/2
CANL
Figure 9. CAN Termination Switch
Maxim Integrated
12
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
VCC
A
RT/2
MAX3160
EN
A
MAX14759
B
RS-485/
RS-232
CONTROL
RT/2
B
GND
Figure 10. Multiprotocol Termination Switch
VCC
RPU
A1
MAX14761
B1
EN1
B2
EN2
CONTROL
RT
A2
RS-485
TRANSCEIVER
RPD
Figure 11. Pullup and Pulldown Resistance Switch
Maxim Integrated
13
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
VCC
VCC
RPU
B1
A1
RS-485
TRANSCEIVER
CONTROL
EN1
RT
MAX14761
EN2
B2
A2
GND
RPD
Figure 12. Fail-Safe Biasing Network Switch
MAX14763
AUDIO
AMPLIFIER 1
A1
AUDIO
AMPLIFIER
2
MAX14763
COM
A2
SEL
A1
A2
AUDIO
AMPLIFIER 2
COM
SEL
A1
AUDIO
AMPLIFIER
1
MAX14763
COM
A2
CONTROL
SEL
CONTROL
Figure 13. Single-Ended Amplifier Switching
Maxim Integrated
Figure 14. Differential Amplifier Switching
14
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Ordering Information/Selector Guide
PART
TEMP RANGE
PIN-PACKAGE
FUNCTION
RON (MAX) (I)
MAX14759ETA+
-40NC to +85NC
8 TDFN-EP*
1 x SPST
1
MAX14761ETB+
-40NC to +85NC
10 TDFN-EP*
2 x SPST
2
MAX14763ETA+
-40NC to +85NC
8 TDFN-EP*
1 x SPDT
2
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Chip Information
PROCESS: BiCMOS
Maxim Integrated
Package Information
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but the
drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND PATTERN
NO.
8 TDFN
T833+2
21-0137
90-0059
10 TDFN
T1033+1
21-0137
90-0003
15
MAX14759/MAX14761/MAX14763
Above- and Below-the-Rails
Low On-Resistance Analog Switches
Revision History
REVISION
NUMBER
REVISION
DATE
0
9/11
Initial release
1
8/12
Updated Electrical Characteristics table, updated Figures 1–7, added Switch
Enabled and Switch Disabled figures, updated Pin Configuration table, added
Integrated Bias Generation and Nonpowered Condition sections
DESCRIPTION
PAGES
CHANGED
—
3–7, 9–11
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. The parametric values (min and max limits) shown in the Electrical
Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
© 2012
Maxim Integrated
16
The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc.
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