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19-5253; Rev 0; 4/10
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches
General Description
The MAX14805/MAX14806 provide high-voltage switching on 16 channels for ultrasonic imaging. Both devices are ideal for the following applications: banks selection in biplane or triplane ultrasound probes and relays replacement. The devices utilize 200V process technology to provide sixteen high-voltage, low-charge injection SPST switches, controlled by a digital interface. The MAX14805/MAX14806's output switches are configured as two sets of eight SPST analog switches. The switches are controlled by two input logic controls, DIN1 and DIN2 (respectively for switch 0 to 7 and switch 8 to 15). The MAX14806 features integrated 40kI bleed resistors on each switch terminal, which help to reduce voltage buildup in capacitive loads such as piezoelectric elements. The MAX14805/MAX14806 operate with a wide range of high-voltage supplies, including VPP/VNN = +100V/-100V, +200V/0V, and +40V/-160V. The digital interface operates from a separate VDD supply from +2.7V to +5.5V. Digital inputs DIN1, DIN2, and LE operate on the VDD supply voltage. The MAX14805CCM+ is a drop-in replacement for the Supertex HV2631. The MAX14806CCM+ is a drop-in replacement for the Supertex HV2731. Both devices are available in the 48-pin, TQFP package and are specified for the extended -40NC to +85NC temperature range. Switches
S DC_to_20MHz_Low-Voltage_Analog_Signal_
Features
S HVCMOS_Technology_for_High_Performance S Two_Sets_of_8-Channel_SPST_High-Voltage_Analog_
MAX14805/MAX14806
Frequency_Range
S +2.7V_to_+5.5V_Logic_Supply_Voltage S Ultra-Low_(0.1A)_(typ)_Quiescent_Current S Low-Charge_Injection,_Low-Capacitance_20I_
Switches
S -77dB_(typ)_Off-Isolation_at_5MHz_(50I) S Flexible,_High-Voltage_Supplies_(VPP_-_VNN_=_
230V)
Applications
Medical Ultrasound Imaging Nondestructive Test (NDT)
Ordering Information/Selector Guide
PART MAX14805CCM+ MAX14806CCM+ SWITCH CHANNELS 2x8 2x8 BLEED RESISTOR No Yes SECOND_SOURCE HV2631 HV2731 PIN-PACKAGE 48 TQFP 48 TQFP
Note: All devices are specified over the extended -40C to +85C operating temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package.
________________________________________________________________ _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.
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches MAX14805/MAX14806
ABSOLUTE_MAXIMUM_RATINGS
(All voltages referenced to GND.) VDD Logic Supply Voltage ......................................-0.3V to +7V VPP - VNN Supply Voltage ..................................................230V VPP Positive Supply Voltage ..............................-0.3V to +220V VNN Negative Supply Voltage ............................+0.3V to -220V Logic Inputs Voltage (LE, DIN1, DIN2) ..................-0.3V to +7V Analog Signal Range (SW_) .......(-0.3V + VNN) to (VNN + 200V) Peak Analog Signal Current per Channel ..............................3A Continuous Power Dissipation (TA = +70NC) 48-Pin TQFP (derate 22.7mW/NC above +70NC) ......1818mW Junction-to-Ambient Thermal Resistance BJA (Note 1) .................................................................44NC/W Junction-to-Ambient Thermal Resistance BJC (Note 1) ................................................................10NC/W Operating Temperature Range .......................... -40NC to +85NC Storage Temperature Range............................ -65NC to +150NC Junction Temperature ................................................... +150NC Lead Temperature (soldering, 10s) ................................+300NC Soldering Temperature (reflow) ......................................+260NC
Note_1. Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer 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
(VDD = +2.7V to +5.5V, VPP = +40V to (VNN + 200V), VNN = -40V to -160V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25NC.) (Note 2) PARAMETER POWER_SUPPLIES VDD Supply Voltage VPP Supply Voltage VNN Supply Voltage VDD Supply Quiescent Current VDD Supply Dynamic Current VPP Supply Quiescent Current VDD VPP VNN IDDQ IDDD IPPQ VPP = +40V, VNN = -160V, fSW_ = 50kHz, fDIN1 = fDIN2 = 50kHz, LE = GND IPP VPP = +100V, VNN = -100V, fSW_ = 50kHz, fDIN1 = fDIN2 = 50kHz, LE = GND VPP = +160V, VNN = -40V, fSW_ = 50kHz, fDIN1 = fDIN2 = 50kHz, LE = GND INNQ VPP = +40V, VNN = -160V, fSW_ = 50kHz, fDIN1 = fDIN2 = 50kHz, LE = GND INN VPP = +100V, VNN = -100V, fSW_ = 50kHz, fDIN1 = fDIN2 = 50kHz, LE = GND VPP = +160V, VNN = -40V, fSW_ = 50kHz, fDIN1 = fDIN2 = 50kHz, LE = GND VDD = +5V, LE = GND, fDIN1 = fDIN2 = 5MHz 2.7 40 -160 100 -100 5.5 VNN + 220 -15 5 2 10 5 6 7 10 5.5 5 4.5 mA FA mA V V V FA mA FA SYMBOL CONDITIONS MIN TYP MAX UNITS
VPP Supply Dynamic Current (All Channel Switching Simultaneously)
VNN Supply Quiescent Current
VNN Supply Dynamic Current (All Channel Switching Simultaneously)
2_ _ _______________________________________________________________________________________
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches
ELECTRICAL_CHARACTERISTICS_(continued)
(VDD = +2.7V to +5.5V, VPP = +40V to (VNN + 200V), VNN = -40V to -160V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25NC.) (Note 2) PARAMETER SWITCH_CHARACTERISTICS Analog Signal Range VSW_ (Note 3) VPP = +40V, VNN = -160V, VSW_ = 0V Small-Signal On-Resistance RONS VPP = +100V, VNN = -100V, VSW_ = 0V VPP = +160V, VNN = -40V, VSW_ = 0V Small-Signal On-Resistance Matching Large-Signal Switch On-Resistance Shunt Resistance Switch-Off Leakage Switch-Off DC Offset Switch Output Peak Current Switch Output Isolation Diode Current SWITCH_DYNAMIC_CHARACTERISTICS Turn-On Time Turn-Off Time Output Switching Frequency Off-Isolation Crosstalk Switch Off-Capacitance (Note 4) Switch On-Capacitance (Note 4) Output Voltage Spike (Note 4) Small-Signal Analog Bandwidth tON tOFF fSW VISO VCT CSW_(OFF) CSW_ (ON) VSPK fBW VSW_ = VPP - 10V, RL = 10kI, VNN = -40V to -160V (Figure 1) VSW_ = VPP - 10V, RL = 10kI, VNN = -40V to -160V (Figure 1) Duty cycle = 50% f = 5MHz, RL = 1kI, CL = 15pF (Figure 1) f = 5MHz, RL = 50I (Figure 1) f = 5MHz, RL = 50I (Figure 1) VSW_ = 0V, f = 1MHz VSW_ = 0V, f = 1MHz RL = 50I (Figure 1) VPP = +100V, VNN = -100V, CL = 200pF 4 20 -500 20 -50 -77 -80 11 36 18 56 +250 5 5 50 Fs Fs kHz dB dB pF pF mV MHz DRONS RONL RINT ISW_(OFF) ISW = 5mA ISW = 200mA ISW = 5mA ISW = 200mA ISW = 5mA ISW = 200mA VNN 28 22 22 18 20 16 5 15 27 40 0 -30 3 2 53 2.5 +30 VPP 10 52 37 34 27 30 23 % I kI FA mV A A I V SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX14805/MAX14806
VPP = +100V, VNN = -100V, ISW_ = 5mA VSW_ = VPP - 10V, ISW_ = 1A MAX14806 only VSW_ = VPP - 10V or unconnected (MAX14805 only) (Figure 1) RL = 100kI (Figure 1) 100ns pulse width, 0.1% duty cycle 300ns pulse width, 2% duty cycle (Figure 1)
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16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches MAX14805/MAX14806
ELECTRICAL_CHARACTERISTICS_(continued)
(VDD = +2.7V to +5.5V, VPP = +40V to (VNN + 200V), VNN = -40V to -160V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25NC.) (Note 2) PARAMETER SYMBOL CONDITIONS VPP = +40V, VNN = -160V, VSW_ = 0V (Figure 1) Charge Injection Q VPP = +100V, VNN = -100V, VSW_ = 0V (Figure 1) VPP = +160V, VNN = -40V, VSW_ = 0V (Figure 1) LOGIC_LEVELS_(DIN1,_DIN2,_LE) Logic-Input Low Voltage Logic-Input High Voltage Logic-Input Capacitance Logic-Input Leakage Current Setup Time Hold Time Time Width of LE VIL VIH CIN IIN tSD tHOLD tWLE 30 -1 30 30 VDD 0.75 10 +1 MIN TYP 650 450 250 pC MAX UNITS
0.75
V V pF FA ns ns ns
LOGIC_TIMING_(See_Timing_Diagram,_Figure_2)
Note_2: All devices are 100% tested at TA = +85NC. Limits over the operating temperature range are guaranteed by design and characterization. Note_3: The analog signal input VSW_ must satisfy VNN P VSW_ P VPP or remain unconnected during power-up. Note_4: Guaranteed by characterization; not production tested.
4_ _ _______________________________________________________________________________________
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches MAX14805/MAX14806
VPP - 10V RL 100k VOUT
ISOL VPP - 10V VNN + 10V
SW_
VOUT
SW_
SW_
SW_ MAX14805 MAX14806
RL 100k
SW_ MAX14805 MAX14806 VPP VNN VDD GND 5V VPP VNN
SW_ MAX14805 MAX14806 VPP VNN VDD GND 5V
VPP VNN
VPP VNN
VDD GND
5V
VPP VNN
SWITCH-OFF LEAKAGE
DC OFFSET OFF
tON/tOFF TEST CIRCUIT
VOUT = 10VP-P AT 5MHz SW_ VOUT RL MAX14805 MAX14806 VPP VNN VPP VNN VDD GND 5V VPP VNN VOUT SW_ SW_ IID SW_ VNN MAX14805 MAX14806 VDD GND 5V
VOUT = 10VP-P AT 5MHz SW_ SW_ 50 MAX14805 MAX14806 VPP VNN VPP VNN VDD GND 5V SW_ 50 SW_
VNN VPP VNN
V VISO = 20LOG OUT VIN OFF-ISOLATION
ISOLATION DIODE CURRENT
V VCT = 20LOG OUT VIN CROSSTALK
VOUT VOUT 1000pF SW_ VSW_ VPP VNN VPP VNN MAX14805 MAX14806 VDD GND SW_
+VSPK VOUT -VSPK 50 RL 1k SW_ MAX14805 MAX14806 VPP VNN VDD GND 5V SW_
VDD
VPP VNN
Q = 1000pF x VOUT CHARGE INJECTION
OUTPUTVOLTAGE SPIKE
Figure 1. Test Circuits
________________________________________________________________________________________ _ 5
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches MAX14805/MAX14806
Typical Operating Characteristics
(VDD = +3V, VPP = +100V, VNN = -100V, TA = +25NC, unless otherwise noted.)
ON-RESISTANCE vs. ANALOG SIGNAL VOLTAGE
MAX14805/6 toc01
ON-RESISTANCE vs. ANALOG SIGNAL VOLTAGE
MAX14805/6 toc02
TURN-ON/TURN-OFF TIME vs. ANALOG SIGNAL VOLTAGE
MAX14805/6 toc03
100 90 80 ON-RESISTANCE () 70 60 50 40 30 20 10 0 -150 -100 -50
VPP = +160V, VNN = -40V
120 100 ON-RESISTANCE () 80 60
VPP = +100V, VNN = -100V
5 4 3
VPP = +100V, VNN = -100V VPP = +40V, VNN = -960V
TA = +85C TA = +25C
TURN-ON/TURN-OFF TIME (s)
tOFF
2 1
40 20 0
TA = -40C
tON
0 -100 -50 0 VSW (V) 50 100 -90 -60 -30 0 VNO (V) 30 60 90
0 VSW (V)
50
100
150
OFF-ISOLATION vs. FREQUENCY
MAX14805/6 toc04
LEAKAGE CURRENT vs. TEMPERATURE
MAX14805/6 toc05
LOGIC SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX14805/6 toc06
0
80
ICOM_(OFF)(VCOM = -90V)
1.2 1.0
LEAKAGE CURRENT (nA)
OFF-ISOLATION (dB)
-20
60
IDDQ SUPPLY CURRENT (A)
ICOM_(ON)(VCOM = -90V)
40
TA = +25C
0.8
TA = +85C
0.6 0.4 0.2 0 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5 VDD SUPPLY VOLTAGE (V)
-40
ICOM_(ON)(VCOM = +90V) ICOM_(OFF)(VCOM = 0V)
-60
TA = +85C
TA = +25C TA = -40C
20
ICOM_(ON)(VCOM = 0V) ICOM_(OFF)(VCOM = +90V)
-40 -15 10 35 60 85
TA = -40C
-80 0.001
0 100 TEMPERATURE (C)
0.01
0.1
1
10
FREQUENCY (MHz)
HIGH-VOLTAGE SUPPLY CURRENT vs. TEMPERATURE
MAX14805/6 toc07
HIGH-VOLTAGE SUPPLY CURRENT vs. SWITCHING FREQUENCY
ALL SWITCHES SWITCHING TA = +25C
MAX14805/6 toc08
0.20
VPP = +100V VNN = -100V
8
IPP
0.10
SUPPLY CURRENT (mA)
SUPPLY CURRENT (A)
0.15
6
4
IPP
0.05
INN
2
INN
0
0 -40 -15 10 35 60 85 TEMPERATURE (C)
0
10
20
30
40
50
DIN_ SWITCHING FREQUENCY (kHz)
6_ _ _______________________________________________________________________________________
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches
Pin Configuration
SW10 SW10 SW5 SW5 SW6 SW6 SW7 SW7 SW8 SW8 SW9 SW9
MAX14805/MAX14806
TOP VIEW
36 35 34 33 32 31 30 29 28 27 26 25
SW4 N.C. SW4 N.C. SW3 SW3 SW2 SW2 SW1 SW1 SW0 SW0
37 38 39 40 41 42 43 44 45 46 47 48
24 23 22 21
N.C. SW11 SW11 SW12 SW12 SW13 SW13 SW14 SW14 SW15 SW15 N.C.
MAX14805 MAX14806
20 19 18 17 16 15 14 13
+
10 VDD
11 GND
DIN1
DIN2
N.C.
N.C.
N.C.
N.C.
TQFP (7mm x 7mm x 1.4mm)
N.C.
VNN
VPP
LE
12
1
2
3
4
5
6
7
8
9
Pin Description
PIN 1 2, 4, 8, 9, 12, 13, 24, 38, 40 3 5 6 7 10 11 14, 15 NAME VNN N.C. VPP DIN1 LE DIN2 VDD GND SW15 FUNCTION Negative High-Voltage Power Supply. Bypass VNN to GND with a 0.1FF or greater ceramic capacitor as close as possible to the device. No Connection. Not internally connected. Positive High-Voltage Power Supply. Bypass VPP to GND with a 0.1FF or greater ceramic capacitor as close as possible to the device. Data Input 1 Active-Low Latch Enable Input. Drive LE low to latch data input. Drive LE high to hold data. Data Input 2 Digital Power Supply. Bypass VDD to GND with a 0.1FF or greater ceramic capacitor as close as possible to the device. Ground Analog Switch Terminal 15
________________________________________________________________________________________ _ 7
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches MAX14805/MAX14806
Pin Description (continued)
PIN 16, 17 18, 19 20, 21 22, 23 25, 26 27, 28 29, 30 31, 32 33, 34 35, 36 37, 39 41, 42 43, 44 45, 46 47, 48 NAME SW14 SW13 SW12 SW11 SW10 SW9 SW8 SW7 SW6 SW5 SW4 SW3 SW2 SW1 SW0 Analog Switch Terminal 14 Analog Switch Terminal 13 Analog Switch Terminal 12 Analog Switch Terminal 11 Analog Switch Terminal 10 Analog Switch Terminal 9 Analog Switch Terminal 8 Analog Switch Terminal 7 Analog Switch Terminal 6 Analog Switch Terminal 5 Analog Switch Terminal 4 Analog Switch Terminal 3 Analog Switch Terminal 2 Analog Switch Terminal 1 Analog Switch Terminal 0 FUNCTION
8_ _ _______________________________________________________________________________________
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches MAX14805/MAX14806
tSD tHOLD tWLE
VDD LE 0V 50% 50% 50%
VDD DIN_ 0V 50% 50%
ON SW_ OFF tON tOFF 50% 50%
Figure 2. Digital Control (DIN1/DIN2/LE) Timing
Table_1._Truth_Table
CONTROL DIN1 Low High Low High X X = Don't care. DIN2 Low Low High High X LE Low Low Low Low High SW0-SW7 Off On Off On Hold Previous State ANALOG_SWITCH SW8-SW15 Off Off On On
________________________________________________________________________________________ _ 9
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches MAX14805/MAX14806
Detailed Description
The MAX14805/MAX14806 provide high-voltage switching on 16 channels for ultrasonic imaging. Both devices are ideal for the following applications: bank selection in biplane or triplane ultrasound probes and relays replacement in medical ultrasound systems. The devices utilize 200V process technology to provide 16 high-voltage, low-charge injection SPST switches, controlled by a digital interface. The MAX14805/MAX14806's output switches are configured as two sets of eight SPST analog switches. The switches are controlled by two input logic controls, DIN1 and DIN2 (respectively for switch 0 to 7 and switch 8 to 15). The MAX14806 features integrated 40kI bleed resistors on each switch terminal that help to reduce voltage buildup in capacitive loads such as piezoelectric elements. The MAX14805/MAX14806 operate with a wide range of high-voltage supplies, including VPP/VNN = +100V/-100V, +200V/0V and +40V/-160V. The digital interface operates from a separate VDD supply from +2.7V to +5.5V. Digital inputs DIN1, DIN2, and LE operate on the VDD supply voltage. The MAX14805CCM+ is a drop-in replacement for the Supertex HV2631. The MAX14806CCM+ is a drop-in replacement for the Supertex HV2731. The MAX14805/MAX14806 allow a peak-to-peak analog signal range from VNN to (VPP - 10V). During power-up and power-down, all analog switch inputs (SW_) must be unconnected or satisfy VNN P VSW_ P VPP. The MAX14805/MAX14806 allow a wide range of highvoltage supplies. The devices operate with VNN from -160V to 0V and VPP from +40V to (VNN + 220V). When VNN is connected to GND (single-supply applications), the devices operate with VPP up to +200V. The VPP and VNN high-voltage supplies are not required to be symmetrical, but the voltage difference (VPP - VNN) must not exceed 230V. The MAX14806 features integrated 40kI bleed resistors to discharge capacitive loads such as piezoelectric transducers. Each analog switch terminal is connected to GND with a bleed resistor. DIN1/DIN2 control the on/off state of the analog switches. DIN1 controls SW0-SW7 and DIN2 controls SW8-SW15 (see Table 1 and Figure 2). DIN1 and DIN2 operate on the VDD supply voltage. Drive LE logic-low to latch DIN1/DIN2 data input (see Figure 2). Drive LE logic-high to hold data. The LE input operates on the VDD supply voltage.
High-Voltage Supplies
Bleed Resistors (MAX14806)
Data Input (DIN1/DIN2)
Latch Enable (LE)
Applications Information
For medical ultrasound applications, see Figures 3 and 4. The MAX14805/MAX14806 do not require special sequencing of the VDD, VPP, and VNN supply voltages; however, analog switch inputs must be unconnected or satisfy VNN P VSW_ P VPP during power-up and powerdown. Bypass VDD, VPP, and VNN to GND with a 0.1FF ceramic capacitor as close as possible to the device.
Analog Switch
Supply Sequencing and Bypassing
10_ _ ______________________________________________________________________________________
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches
Application Diagram
MAINFRAME PROBE SELECTION 2 TO 4 PROBES PROBES
MAX14805/MAX14806
HIGH-VOLTAGE TRANSMIT 1 PER CHANNEL 100V MAX
MAX14805 MAX14806
CABLE 1 PER CHANNEL 1A TO 2A MAX
TRANSDUCERS
+V 10mA TYP LOW-VOLTAGE RECEIVE 64 TO 128 CHANNELS 1V MAX HIGH-VOLTAGE ISOLATION PROBE A
-V
PROBE B
Figure 3. Relay Replacement Application in Medical System
_______________________________________________________________________________________ _ 11
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches MAX14805/MAX14806
Application Diagram (continued)
MAINFRAME PROBES
HIGH-VOLTAGE TRANSMIT 1 PER CHANNEL 100V MAX
PROBE SELECTION 2 TO 4 PROBES
CABLE 1 PER CHANNEL 1A TO 2A MAX
MAX14805 MAX14806
TRANSDUCERS TWO BANKS OF ELEMENTS
RELAY 1 RELAY/CH/PROBE
PROBE A
BANK 1 128 OR MORE ELEMENTS
+V 10mA TYP LOW-VOLTAGE RECEIVE 64 TO 128 CHANNELS 1V MAX HIGH-VOLTAGE ISOLATION
PROBE B BANK 2 128 OR MORE ELEMENTS PROBE C
PROBE D -V
Figure 4. Probe Banks Selection in Biplane or Triplane Probe
12_ _ ______________________________________________________________________________________
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches
Functional Diagram
VDD LE VDD LATCH VPP LEVEL SHIFTER 1 VNN VPP
MAX14805/MAX14806
SW0
*
VNN SW1
DIN1
GND
*
VNN SW7
*
VNN SW7
*
GND VDD LATCH VPP LEVEL SHIFTER 2 VNN VNN SW8
*
VNN SW8
DIN2
GND
*
VNN SW15
*
MAX14805 MAX14806
VNN SW15
*
VNN GND *BLEED RESISTORS AVAILABLE ON THE MAX14806 ONLY. VNN
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.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 48 TQFP PACKAGE_CODE C48-6 DOCUMENT_NO. 21-0054
_______________________________________________________________________________________ _ 13
16-Channel (Two Banks of 8-Channel), High-Voltage Analog Switches MAX14805/MAX14806
Revision History
REVISION NUMBER 0 REVISION DATE 4/10 Initial release DESCRIPTION PAGES CHANGED --
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.
14_____________________ ________ Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
(c)
2010 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.

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