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EL2176C EL2276C
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Features
Single (EL2176C) and dual (EL2276C) topologies 1 mA supply current (per amplifier) 70 MHz b 3 dB bandwidth Low cost Fast disable Powers down to 0 mA Single- and dual-supply operation down to g1 5V 0 15% 0 15 diff gain diff phase into 150X 800V ms slew rate Large output drive current 100 mA (EL2176C) 55 mA (EL2276C) Also available without disable in single (EL2170C) dual (EL2270C) and quad (EL2470C) Higher speed EL2180C EL2186C family also available (3 mA 250 MHz) in single dual and quad
General Description
The EL2176C EL2276C are single dual current-feedback operational amplifiers which achieve a b 3 dB bandwidth of 70 MHz at a gain of a 1 while consuming only 1 mA of supply current per amplifier They will operate with dual supplies ranging from g1 5V to g6V or from single supplies ranging from a 3V to a 12V The EL2176C EL2276C also include a disable powerdown feature which reduces current consumption to 0 mA while placing the amplifier output in a high impedance state In spite of its low supply current the EL2276C can output 55 mA while swinging to g4V on g5V supplies The EL2176C can output 100 mA with similar output swings These attributes make the EL2176C EL2276C excellent choices for low power and or low voltage cable-driver HDSL or RGB applications For Single Dual and Quad applications without disable consider the EL2170C (8-Pin Single) EL2270C (8-Pin Dual) or EL2470C (14-Pin Quad) For higher bandwidth applications where low power is still a concern consider the EL2180C El2186C family which also comes in similar Single Dual and Quad configurations The EL2180C EL2186C family provides a b 3 dB bandwidth of 250 MHz while consuming 3 mA of supply current per amplifier
Connection Diagrams
EL2176C SO P-DIP EL2276C SO P-DIP
Applications
Low power battery applications HDSL amplifiers Video amplifiers Cable drivers RGB amplifiers Test equipment amplifiers Current to voltage converters
2176 - 1
Ordering Information
Part No Temp Range Package Outline MDP0031 MDP0027
2176 - 2
December 1995 Rev B
EL2176CN b 40 C to a 85 C 8-Pin PDIP EL2176CS b 40 C to a 85 C 8-Pin SOIC
EL2276CN b 40 C to a 85 C 14-Pin PDIP MDP0031 EL2276CS b 40 C to a 85 C 14-Pin SOIC MDP0027
Manufactured under U S Patent No 5 352 989 5 351 012 5 418 495
Note All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication however this data sheet cannot be a ``controlled document'' Current revisions if any to these specifications are maintained at the factory and are available upon your request We recommend checking the revision level before finalization of your design documentation
1995 Elantec Inc
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Absolute Maximum Ratings (TA e 25 C)
Voltage between VS a and VSb Common-Mode Input Voltage Differential Input Voltage Current into a IN or bIN Internal Power Dissipation Operating Ambient Temperature Range
a 12 6V VSb to VS a
g6V g7 5 mA See Curves b 40 C to a 85 C
Operating Junction Temperature Plastic Packages Output Current (EL2176C) Output Current (EL2276C) Storage Temperature Range
150 C
g120 mA g60 mA
b 65 C to a 150 C
Important Note All parameters having Min Max specifications are guaranteed The Test Level column indicates the specific device testing actually performed during production and Quality inspection Elantec performs most electrical tests using modern high-speed automatic test equipment specifically the LTX77 Series system Unless otherwise noted all tests are pulsed tests therefore TJ e TC e TA Test Level I II III IV V Test Procedure 100% production tested and QA sample tested per QA test plan QCX0002 100% production tested at TA e 25 C and QA sample tested at TA e 25 C TMAX and TMIN per QA test plan QCX0002 QA sample tested per QA test plan QCX0002 Parameter is guaranteed (but not tested) by Design and Characterization Data Parameter is typical value at TA e 25 C for information purposes only
DC Electrical Characteristics
VS e g5V RL e 150X ENABLE e 0V TA e 25 C unless otherwise specified Parameter VOS TCVOS dVOS
a IIN
Description Input Offset Voltage Average Input Offset Voltage Drift VOS Matching
a Input Current a IIN Matching b Input Current b IIN Matching
Conditions
Min
Typ 25
Max 15
Test Level I V V
Units mV mV C mV mA nA mA mA dB mA V dB mA V kX TD is 3 1in MX pF V
Measured from TMIN to TMAX EL2276C only
5 05 05 5
I V
d a IIN
b IIN
EL2276C only
20 4 15
I V I
dbIIN CMRR
b ICMR
EL2276C only VCM e g3 5 V VCM e g3 5V VS is moved from g4V to g6V VS is moved from g4V to g6V VOUT e g2 5V VCM e g3 5V 150 1 60 45
15 50 4 70 05 400 4 12
g3 5 g4 0
Common Mode Rejection Ratio
b Input Current Common Mode Rejection
10
I I
PSRR
b IPSR
Power Supply Rejection Ratio
b Input Current Power Supply Rejection
5
I I I V I
ROL
a RIN a CIN
Transimpedance
a Input Resistance a Input Capacitance
CMIR
Common Mode Input Range
2
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
DC Electrical Characteristics
Parameter VO Description Output Voltage Swing VS e g5 VS e a 5 Single-Supply High VS e a 5 Single-Supply Low IO Output Current EL2176C only EL2276C only per Amplifier IS IS(DIS) Supply Current Supply Current (Disabled) ENABLE e 2 0V per Amplifier ENABLE e 4 5V ENABLE e 4 5V Measured at ENABLE e 2 0V 4 5V Measured at ENABLE ENABLE e 4 5V Measured at ENABLE ENABLE e 0V 45 20 45 80 50
Contd
Conditions Min Typ Max
g3 5 g4 0
VS e g5V RL e 150X ENABLE e 0V TA e 25 C unless otherwise specified Test Units Level I V V I I 2 20 I I V I V V I I V V V mA mA mA mA pF kX mA mA V V
40 03 100 55 1 0 44 85
b 0 04 b 53
COUT(DIS) Output Capacitance (Disabled) REN IIH IIL VDIS VEN Enable Pin Input Resistance Logic ``1'' Input Current Logic ``0'' Input Current Minimum Voltage at ENABLE to Disable Maximum Voltage at ENABLE to Enable
AC Electrical Characteristics
VS e g5V RF e RG e 1 0 kX RL e 150X ENABLE e 0V TA e 25 C unless otherwise specified Parameter
b 3 dB BW b 3 dB BW
Description
b 3 dB Bandwidth b 3 dB Bandwidth
Conditions AV e a 1 AV e a 2 VOUT e g2 5V AV e a 2 VOUT e g500 mV VOUT e g500 mV VOUT e g500 mV VOUT e g2 5V AV e b1 AV e a 2 RL e 150X (Note 1) AV e a 2 RL e 150X (Note 1) AV e a 1 RL e 500X (Note 1) AV e a 1 RL e 500X (Note 1) AV e a 2 VIN e a 1V RL e 150X (Note 2) AV e a 2 VIN e a 1V RL e 150X (Note 2) EL2276C only f e 5 MHz
Min
Typ 70 60
Max
Test Level V V IV V V V V V V V V
Units MHz MHz V ms ns ns % ns %
SR tr tf tpd OS ts dG dP dG dP tON tOFF CS
Slew Rate Rise and Fall Time Propagation Delay Overshoot 0 1% Settling Differential Gain Differential Phase Differential Gain Differential Phase Turn-On Time Turn-Off Time Channel Separation
400
800 45 45 30 40 0 15 0 15 0 02 0 01 40 1500 85 100 2000
%
I V
ns dB
Note 1 DC offset from 0V to 0 714V AC amplitude 286 mVP-P f e 3 58 MHz Note 2 Measured from the application of the logic signal until the output voltage is at the 50% point between initial and final values
3
TD is 2 8in
I
ns
TD is 2 8in
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Test Circuit (per Amplifier)
2176 - 3
Simplified Schematic (per Amplifer)
2176 - 4
4
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Typical Performance Curves
Non-Inverting Frequency Response (Gain) Non-Inverting Frequency Response (Phase) Frequency Response for Various RF and RG
2176 - 5
2176 - 6
2176 - 7
Inverting Frequency Response (Gain)
Inverting Frequency Response (Phase)
Frequency Response for Various RL and CL
2176 - 8
2176 - 9
2176 - 10
Transimpedance (ROL)
PSRR and CMRR
Frequency Response for Various CIN b
2176 - 11
2176 - 12
2176 - 13
5
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Typical Performance Curves
Voltage and Current Noise vs Frequency
Contd
2nd and 3rd Harmonic Distortion vs Frequency Output Voltage vs Frequency
2176 - 14
2176 - 15
2176 - 16
b 3 dB Bandwith and Peaking vs Supply Voltage for Various Non-Inverting Gains
b 3 dB Bandwith and Peaking vs Supply Voltage for Various Inverting Gains
Output Voltage Swing vs Supply Voltage
2176 - 17
2176 - 18
2176 - 19
Supply Current vs Supply Voltage
Common-Mode Input Range vs Supply Voltage
Slew Rate vs Supply Voltage
2176 - 20
2176 - 21
2176 - 22
6
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Typical Performance Curves
Input Bias Current vs Die Temperature
Contd
Transimpedance (ROL) vs Die Temperature
Short-Circuit Current vs Die Temperature
2176 - 23
2176 - 24
2176 - 25
b 3 dB Bandwith and Peaking vs Die Temperature for Various Non-Inverting Gains
b 3 dB Bandwith and Peaking vs Die Temperature for Various Inverting Gains
Input Offset Voltage vs Die Temperature
2176 - 26
2176 - 27
2176 - 28
Supply Current vs Die Temperature
Input Voltage Range vs Die Temperature
Slew Rate vs Die Temperature
2176 - 29
2176 - 30
2176 - 31
7
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Typical Performance Curves
Differential Gain and Phase vs DC Input Voltage at 3 58 MHz AV e a 2
Contd
Differential Gain and Phase vs DC Input Offset at 3 58 MHz AV e a 1
Settling Time vs Settling Accuracy
2176 - 32
2176 - 33
2176 - 34
Small-Signal Step Response
Large-Signal Step Response
2176 - 35
2176 - 36
8-Pin Plastic DIP Maximum Power Dissipation vs Ambient Temperature
8-Lead SO Maximum Power Dissipation vs Ambient Temperature
2176 - 37
2176 - 38
8
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Typical Performance Curves
14-Pin Plastic DIP Maximum Power Dissipation vs Ambient Temperature
Contd
14-Lead SO Maximum Power Dissipation vs Ambient Temperature
Channel Separation vs Frequency (EL2276)
2176 - 39
2176 - 40
2176 - 41
9
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Applications Information
Product Description
The EL2176C EL2276C are current-feedback operational amplifiers that offer a wide b 3 dB bandwidth of 70 MHz a low supply current of 1 mA per amplifier and the ability to disable to 0 mA Both products also feature high output current drive The EL2176C can output 100 mA while the EL2276C can output 55 mA per amplifier The EL2176C EL2276C work with supply voltages ranging from a single 3V to g6V and they are also capable of swinging to with in 1V of either supply on the input and the output Because of their current-feedback topology the EL2176C EL2276C do not have the normal gainbandwidth product associated with voltage-feedback operational amplifiers This allows their b 3 dB bandwidth to remain relatively constant as closed-loop gain is increased This combination of high bandwidth and low power together with aggressive pricing make the EL2176C EL2276C the ideal choice for many low-power high-bandwidth applications such as portable computing HDSL and video processing For Single Dual and Quad applications without disable consider the EL2170C (8-Pin Single) EL2270C (8-Pin Dual) and EL2470C (14-Pin Quad) If more AC performance is required refer to the EL2180C EL2186C family which provides Singles Duals and Quads with 250 MHz of bandwidth while consuming 3 mA of supply current per amplifier tion should be used but it should be removed from the area near the inverting input to minimize any stray capacitance at that node Carbon or Metal-Film resistors are acceptable with the Metal-Film resistors giving slightly less peaking and bandwidth because of their additional series inductance Use of sockets particularly for the SO package should be avoided if possible Sockets add parasitic inductance and capacitance which will result in some additional peaking and overshoot
Disable Power-Down
The EL2176C EL2276C amplifiers can be disabled placing their output in a high-impedance state When disabled each amplifier's supply current is reduced to 0 mA Each EL2176C EL2276C amplifier is disabled when its ENABLE pin is floating or pulled up to within 0 5V of the positive supply Similarly each amplifier is enabled by pulling its ENABLE pin at least 3V below the positive supply For g5V supplies this means that an EL2176C EL2276C amplifier will be enabled when ENABLE is at 2V or less and disabled when ENABLE is above 4 5V Although the logic levels are not standard TTL this choice of logic voltages allows the EL2176C EL2276C to be enabled by tying ENABLE to ground even in a 3V single-supply applications The ENABLE pin can be driven from CMOS outputs or open-collector TTL When enabled supply current does vary somewhat with the voltage applied at ENABLE For example with the supply voltages of the EL2176C at g5V if ENABLE is tied to b 5V (rather than ground) the supply current will increase about 15% to 1 15 mA
Power Supply Bypassing and Printed Circuit Board Layout
As with any high-frequency device good printed circuit board layout is necessary for optimum performance Ground plane construction is highly recommended Lead lengths should be as short as possible The power supply pins must be well bypassed to reduce the risk of oscillation The combination of a 4 7 mF tantalum capacitor in parallel with a 0 1 mF capacitor has been shown to work well when placed at each supply pin For good AC performance parasitic capacitance should be kept to a minimum especially at the inverting input (see the Capacitance at the Inverting Input section) Ground plane construc10
Capacitance at the Inverting Input
Any manufacturer's high-speed voltage- or current-feedback amplifier can be affected by stray capacitance at the inverting input For inverting gains this parasitic capacitance has little effect because the inverting input is a virtual ground but for non-inverting gains this capacitance (in conjunction with the feedback and gain resistors) creates a pole in the feedback path of the amplifier This pole if low enough in frequency has the same destabilizing effect as a zero in the forward open-loop response The use of large value feed-
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Applications Information
Contd back and gain resistors further exacerbates the problem by further lowering the pole frequency The EL2176C EL2276C have been specially designed to reduce power dissipation in the feedback network by using large 1 0 kX feedback and gain resistors With the high bandwidths of these amplifiers these large resistor values would normally cause stability problems when combined with parasitic capacitance but by internally canceling the effects of a nominal amount of parasitic capacitance the EL2176C EL2276C remain very stable For less experienced users this feature makes the EL2176C EL2276C much more forgiving and therefore easier to use than other products not incorporating this proprietary circuitry The experienced user with a large amount of PC board layout experience may find in rare cases that the EL2176C EL2276 C have less bandwidth than expected In this case the inverting input may have less parasitic capacitance than expected by the internal compensation circuitry of the EL2176C EL2276C The reduction of feedback resistor values (or the addition of a very small amount of external capacitance at the inverting input e g 0 5 pF) will increase bandwidth as desired Please see the curves for Frequency Response for Various RF and RG and Frequency Response for Various CIN b actually allows the EL2176C EL2276C to maintain about the same b 3 dB bandwidth regardless of closed-loop gain However as closed-loop gain is increased bandwidth decreases slightly while stability increases Since the loop stability is improving with higher closed-loop gains it becomes possible to reduce the value of RF below the specified 1 0 kX and still retain stability resulting in only a slight loss of bandwidth with increased closed-loop gain
Supply Voltage Range and SingleSupply Operation
The EL2176C EL2276C have been designed to operate with supply voltages having a span of greater than 3V and less than 12V In practical terms this means that the EL2176C EL2276C will operate on dual supplies ranging from g1 5V to g6V With a single-supply the EL2176C will operate from a 3V to a 12V As supply voltages continue to decrease it becomes necessary to provide input and output voltage ranges that can get as close as possible to the supply voltages The EL2176C EL2276C have an input voltage range that extends to within 1V of either supply So for example on a single a 5V supply the EL2176C EL2276C have an input range which spans from 1V to 4V The output range of the EL2176C EL2276C is also quite large extending to within 1V of the supply rail On a g5V supply the output is therefore capable of swinging from b 4V to a 4V Single-supply output range is even larger because of the increased negative swing due to the external pulldown resistor to ground On a single a 5V supply output voltage range is about 0 3V to 4V
Feedback Resistor Values
The EL2176C EL2276C have been designed and specified at gains of a 1 and a 2 with RF e 1 0 kX This value of feedback resistor gives 70 MHz of b 3 dB bandwidth at AV e a 1 with about 1 5 dB of peaking and 60 MHz of b 3 dB bandwidth at AV e a 2 with about 0 5 dB of peaking Since the EL2176C EL2276C are current-feedback amplifiers it is also possible to change the value of RF to get more bandwidth As seen in the curve of Frequency Response For Various RF and RG bandwidth and peaking can be easily modified by varying the value of the feedback resistor Because the EL2176C is a current-feedback amplifier the gain-bandwidth product is not a constant for different closed-loop gains This feature
11
Video Performance
For good video performance an amplifier is required to maintain the same output impedance and the same frequency response as DC levels are changed at the output This is especially difficult when driving a standard video load of 150X because of the change in output current with DC level Until the EL2176C EL2276C good Differential Gain could only be achieved by running high idle currents through the output transistors (to reduce variations in output impedance) These currents were typically in excess of the
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Contd entire 1 mA supply current of each EL2176C EL2276C amplifier Special circuitry has been incorporated in the EL2176C EL2276C to reduce the variation of output impedance with current output This results in dG and dP specifications of 0 15% and 0 15 while driving 150X at a gain of a 2 Video Performance has also been measured with a 500X load at a gain of a 1 Under these conditions the EL2176C EL2276C have dG and dP specifications of 0 01% and 0 02 respectively while driving 500X at AV e a 1
Applications Information
Current Limiting
The EL2176C EL2276C have no internal current-limiting circuitry If any output is shorted it is possible to exceed the Absolute Maximum Ratings for output current or power dissipation potentially resulting in the destruction of the device
Power Dissipation
With the high output drive capability of the EL2176C EL2276C it is possible to exceed the 150 C Absolute Maximum junction temperature under certain very high load current conditions Generally speaking when RL falls below about 25X it is important to calculate the maximum junction temperatu re (TJmax) for the application to determine if power-supply voltages load conditions or package type need to be modified for the EL2176C EL2276C to remain in the safe operating area These parameters are calculated as follows TJMAX e TMAX a (iJA n PDMAX) 1 where TMAX iJA n
Output Drive Capability
In spite of its low 1 mA of supply current the EL2176C is capable of providing a minimum of g80 mA of output current Similarly each amplifier of the EL2276C is capable of providing a minimum of g50 mA These output drive levels are unprecedented in amplifiers running at these supply currents With a minimum g80 mA of output drive the EL2176C is capable of driving 50X loads to g4V making it an excellent choice for driving isolation transformers in telecommunications applications Similarly the g50 mA minimum output drive of each EL2276C amplifier allows swings of g2 5V into 50X loads
e Maximum Ambient Temperature e Thermal Resistance of the Package e Number of Amplifiers in the Pack-
Driving Cables and Capacitive Loads
When used as a cable driver double termination is always recommended for reflection-free performance For those applications the back-termination series resistor will decouple the EL2176C EL2276C from the cable and allow extensive capacitive drive However other applications may have high capacitive loads without a back-termination resistor In these applications a small series resistor (usually between 5X and 50X) can be placed in series with the output to eliminate most peaking The gain resistor (RG) can then be chosen to make up for any gain loss which may be created by this additional resistor at the output In many cases it is also possible to simply increase the value of the feedback resistor (RF) to reduce the peaking
age PDMAX e Maximum Power Dissipation of Each Amplifier in the Package PDMAX for each amplifier can be calculated as follows PDMAX e (2 VS ISMAX) a (VS b VOUTMAX) (VOUTMAX RL)) 2 where VS ISMAX
e Supply Voltage e Maximum Supply Current of 1
Amplifier VOUTMAX e Max Output Voltage of the Application e Load Resistance RL
12
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Typical Application Circuits
Low Power Multiplexer with Single-Ended TTL Input
2176 - 42
13
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Typical Application Circuits
Contd
Inverting 200 mA Output Current Distribution Amplifier
2176 - 43
14
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Typical Application Circuits
Contd
Differential Line-Driver Receiver
2176 - 44
15
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
Typical Application Circuits
Contd
Fast-Settling Precision Amplifier
2176 - 45
16
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
EL2176C EL2276C Macromodel
Revision A March 1995 AC characteristics used Rf e Rg e 1KX RL e 150X a input Connections b input l a Vsupply l l Transimpedance Stage g1 0 18 17 0 1 0 rol 18 0 400K cdp 18 0 1 9pF Output Stage q1 4 18 19 qp q2 7 18 20 qn q3 7 19 21 qn q4 4 20 22 qp r7 21 6 4 r8 22 6 4 ios1 7 19 0 4mA ios2 20 4 0 4mA Supply Current ips 7 4 1nA Error Terms ivos 0 23 2mA vxx 23 0 0V e4 24 0 3 0 1 0 e5 25 0 7 0 1 0 e6 26 0 4 0 b1 0 r9 24 23 0 316K r10 25 23 3 2K r11 26 23 3 2K Models model qn npn(is e 5e-15 bf e 200 tf e 0 01nS) model qp pnp(is e 5e-15 bf e 200 tf e 0 01nS) model dclamp d(is e 1e-30 ibv e 0 266 a bv e 1 3v n e 4) ends
l l l
subckt EL2176 el Input Stage e1 10 0 3 0 1 0 vis 10 9 0V h2 9 12 vxx 1 0 r1 2 11 165 l1 11 12 25nH iinp 3 0 0 5uA iinm 2 0 4uA r12 3 0 4Meg Slew Rate Limiting h1 13 0 vis 600 r2 13 14 1K d1 14 0 dclamp d2 0 14 dclamp High Frequency Pole e2 30 0 14 0 0 00166666666 l3 30 17 0 5uH c5 17 0 0 69pF r5 17 0 300 3
l l l
2
l l l
7
b Vsupply
l l
4
output
l
6
17
TD is 5 2in
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
EL2176C EL2276C Macromodel
Contd
2176 - 46
18
BLANK
19
EL2176C EL2276C
EL2176C EL2276C
70 MHz 1 mA Current Mode Feedback Amp w Disable
General Disclaimer
Specifications contained in this data sheet are in effect as of the publication date shown Elantec Inc reserves the right to make changes in the circuitry or specifications contained herein at any time without notice Elantec Inc assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement
WARNING
Life Support Policy
December 1995 Rev B
Elantec Inc 1996 Tarob Court Milpitas CA 95035 Telephone (408) 945-1323 (800) 333-6314 Fax (408) 945-9305 European Office 44-71-482-4596
20
Elantec Inc products are not authorized for and should not be used within Life Support Systems without the specific written consent of Elantec Inc Life Support systems are equipment intended to support or sustain life and whose failure to perform when properly used in accordance with instructions provided can be reasonably expected to result in significant personal injury or death Users contemplating application of Elantec Inc products in Life Support Systems are requested to contact Elantec Inc factory headquarters to establish suitable terms conditions for these applications Elantec Inc 's warranty is limited to replacement of defective components and does not cover injury to persons or property or other consequential damages
Printed in U S A

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