How it Works
MAXIM
Loading...
MAX14756
Technical data
12 pgs1.49 Mb0

MAXIM MAX14756, MAX14757, MAX14758 Technical data

19-5720; Rev 0; 12/10
Quad SPST +70V Analog Switches
General Description
The MAX14756/MAX14757/MAX14758 are analog switches with a low on-resistance of 10I (max) that conduct equally well in both directions. All devices have a rail-to-rail analog-signal range. They operate with a sin­gle +10V to +70V supply in unipolar applications or Q35V dual supplies in bipolar applications. The bipolar sup­plies can be offset and do not have to be symmetrical.
The MAX14756 is a quad normally closed (NC) single­pole/single-throw (SPST) switch, the MAX14757 is a quad normally open (NO) SPST switch, and the MAX14758 has two NO and two NC SPST switches. These switches have 5I (typ) on-resistances and low on-leakage currents of
0.01nA (typ). The on-resistance flatness is 0.004I (typ).
The devices are suitable for a multitude of analog signal routing and switching applications. They are specified over an extended temperature range of -40NC to +85NC, but can be operated up to +125NC with elevated leakage currents.
Applications
Industrial Control Systems
Instrumentation
Battery Management
Environmental Control Systems
Medical Systems
ATE System
Audio Signal Routing/Switching
Automotive
Functional Diagrams
Features
S Single-Supply Operation from +10V to +70V
S Bipolar-Supply Operation Up to ±35V
S On-Resistance of 10I (max)
S R
S 2.5nA (max) Off-Leakage Currents at +85°C
S Overvoltage/Undervoltage Clamping Through
Flatness of 0.004I (typ)
ON
Protection Diodes
S 500µA (typ) Supply Current
S TSSOP 16-Pin Package
S -40°C to +85°C Ambient Temperature Range
S Functionally Compatible to DG411, DG412, and
DG413
S Functionally Operational Up to +125°C
Ordering Information
PART FUNCTION
MAX14756EUE+
MAX14757EUE+
MAX14758EUE+
Quad NC
SPST
Quad NO
SPST
Dual NO +
NC SPST
TEMP
RANGE
-40NC to +85NC
-40NC to +85NC
-40NC to +85NC
+Denotes a lead(Pb)-free/RoHS-compliant package.
PIN­PACKAGE
16 TSSOP
16 TSSOP
16 TSSOP
MAX14756/MAX14757/MAX14758
V
GND
+
161 A2A1
152 B2B1
143 EN2EN1
V
V
134
SS
MAX14756
TSSOP
MAX14756
EN_ LOGIC SWITCHES
0 CLOSED
1 OPEN
DD
SS
V
125
116 EN3EN4
107 B3B4
98 A3A4
GND
L
+
MAX14757
TSSOP
MAX14757
EN_ LOGIC SWITCHES
0 OPEN
1 CLOSED
+
161 A2A1
152 B2B1
143 EN2EN1
V
V
134
DD
SS
V
125
116 EN3EN4
107 B3B4
98 A3A4
GND
L
EN_ LOGIC SWITCHES 1, 4
0 CLOSED
1 OPEN
MAX14758
TSSOP
MAX14758
SWITCHES 2, 3
OPEN
CLOSED
161 A2A1
152 B2B1
143 EN2EN1
V
134
DD
V
125
L
116 EN3EN4
107 B3B4
98 A3A4
_______________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Quad SPST +70V Analog Switches
ABSOLUTE MAXIMUM RATINGS
VDD to VSS ...........................................................-0.3V to +72V
VSS to GND ..........................................................-36V to +0.3V
VL, EN_ to GND ........-0.3V to the lesser of (+12V, VDD + 0.3V)
A_, B_ to VSS ..............................-0.3V to (VDD + 2V) or 100mA
(whichever occurs first)
Continuous Current into A_, B_ .................................... Q100mA
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TSSOP
Junction-to-Ambient Thermal Resistance (BJA) ...........90NC/W
Junction-to-Case Thermal Resistance (BJC) ................27NC/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.maxim-ic.com/thermal-tutorial.
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—DUAL SUPPLIES
(VDD = +35V, VSS = -35V, V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER SUPPLY
VDD Supply-Voltage Range V VSS Supply-Voltage Range V VL Logic Supply-Voltage Range V
VDD Supply Current
MAX14756/MAX14757/MAX14758
VSS Supply Current
VL Current I
SWITCH
Analog-Signal Range V Current Through Switch I On-Resistance R
On-Resistance Matching Between Channels
On-Resistance Flatness R
On-Leakage Current I
Off-Leakage Current I
= 0V, VL = +3.3V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC.)
GND
DD
SS
L
I
DD(OFF)VEN_
I
DD(ON)VEN_
I
SS(OFF)VEN_
I
SS(ON)VEN_
L
A_, VB_
A_, IB_VA_
ON
DR
ON
FLAT(ON)
A/B_(ON)
to switch off state, VA_, V to switch on state, VA_, V to switch off state, VA_, V to switch on state, VA_, V
VL = +11V, V (0.25 x VL) or ( 0.75 x VL)
Figure 1 V
, V
= +20V -50 +50 mA
B_
IA_, I
= 10mA, VA_, V
B_
IA_, I
= 10mA, VA_, V
B_
(Note 2)
IA_, I
= 10mA, VA_, V
B_
V
= Q20V, VA_= unconnected, Figure 2
B_
V
= Q20V, VA_ = unconnected,
B_
TA = +25NC, Figure 2
V
= Q20V, V
B_
A/B_(OFF)
V
= Q20V, VA_ = -20V, TA = +25NC,
B_
Figure 3
Continuous Power Dissipation (TA = +70NC)
TSSOP (derate 11.1mW/NC above +70NC) .................889mW
Operating Temperature Range .......................... -40NC to +85NC
Storage Temperature Range ............................ -65NC to +150NC
Junction Temperature ................................................... +150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
+10 +35 V
-10 -35 V
+1.6 +11 V
= +20V 200 450
B_
= +20V 500 800
B_
= +20V 200 450
B_
= +20V 500 800
B_
EN1
= V
= V
EN2
EN3
= Q20V, Figure 1
B_
= Q20V, 0V
B_
= Q20V
B_
= V
EN4
=
SS
5 10
0.3 0.5
0.004
0.4 mA
V
DD
-5 +5
0.01
= -20V, Figure 3
A_
-2.5 +2.5
0.01
FA
FA
V
I
I
I
nA
nA
2 ______________________________________________________________________________________
Quad SPST +70V Analog Switches
ELECTRICAL CHARACTERISTICS—DUAL SUPPLIES (continued)
(VDD = +35V, VSS = -35V, V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LOGIC (EN1, EN2, EN3, EN4)
Input-Voltage Low V
Input-Voltage High V
Input Leakage Current V
DYNAMIC CHARACTERISTICS
VDD/VSS Power-On Time Enable Turn-On Time t Enable Turn-Off Time t
Off-Isolation V
Crosstalk V
-3dB Bandwidth BW
Total Harmonic Distortion Plus Noise
Charge Injection Q A_, B_ = GND, CL = 1nF, Figure 8 580 pC
Switch-On Capacitance C
Switch-Off Capacitance C
= 0V, VL = +3.3V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC.)
GND
IL
IH
ON
OFF
ISO
CT
THD+N
IN
IN
= 0V or V
EN_
RL = 10kI V
, VB_= Q10V, RL = 10kI, Figure 4
A _
VA_, VB_= Q10V, RL = 10kI, Figure 4
VA_, VB_= 1V RMS, f = 100kHz, RL = 1kI, CL = 15pF, Figure 5
RS = RL = 1kI, Figure 6 RS = 50I, RL = 1kI, Figure 7
RS = RL = 1kI, f = 20Hz to 20kHz
VDD = +50V, VSS = 0V, V f = 1MHz
VDD = +50V, VSS = 0V, V f = 1MHz
L
, VB_= +4V,
A_
, VB_= +4V,
A _
0.75 x V
L
-1 +1
145 MHz
0.001 %
0.25 x V
L
1
35 60
2 3
65 dB
96 dB
40 pF
35 pF
MAX14756/MAX14757/MAX14758
V
V
FA
Fs Fs Fs
DC ELECTRICAL CHARACTERISTICS—SINGLE SUPPLY
(VDD = +70V, VSS = V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER SUPPLY
VDD Supply-Voltage Range V
SWITCH
On-Resistance R
On-Resistance Matching Between Channels
Off-Leakage Current I
Note 2: Guaranteed by design; not production tested. Note 3: All parameters in single-supply operation are expected to be the same as in dual-supply operation.
= 0V, VL = +3.3V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at TA = +25NC.) (Note 2)
GND
DD
ON
DR
A/B_(OFF)VB_
_______________________________________________________________________________________ 3
IA_ = 10mA, VA_, VB_= +20V, Figure 1 5 10
IA_, I
ON
= 10mA, VA_, V
B_
(Note 2)
= +40V, VA_= +10V, Figure 3 -2.5 +2.5 nA
= +70V, 0V
B_
+10 +70 V
0.3 0.5
I
I
Quad SPST +70V Analog Switches
Test Circuits/Timing Diagrams
V
V
L
V
L
A_ B_
V
IN
GND
V
V
MAX14756 MAX14757 MAX14758
1µF
DD
1µF1µF
DD
SWITCH
EN_
CLOSED
UNCONNECTED
I
V
SS
V
SS
IN
V
L
V
L
A_ B_
Figure 1. On-Resistance Measurement Figure 2. On-Leakage Current
V
L
V
L
MAX14756/MAX14757/MAX14758
SWITCH
I
A_(OFF)
V
IN
EN_
OPEN
A_ B_
A
GND
V
V
MAX14756 MAX14757 MAX14758
DD
1µF1µF
DD
I
B_(OFF)
A
V
SS
GND
V
OUT
V
V
MAX14756 MAX14757 MAX14758
1µF
DD
1µF1µF
DD
SWITCH
EN_
CLOSED
I
B_(ON)
A
V
OUT
V
SS
V
SS
1µF
V
SS
Figure 3. Off-Leakage Current
4 ______________________________________________________________________________________
Loading...
+ 8 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use