Page 1
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
EL2170C/EL2270C/EL2470C January 1996, Rev. B
Features
# Single (EL2170C), dual
(EL2270C) and quad (EL2470C)
topologies
# 1 mA supply current (per
amplifier)
# 70 MHz
b
3 dB bandwidth
# Tiny SOT23-5 Package
(EL2170C)
# Low cost
# Single- and dual-supply
operation down to
# 0.15%/0.15
§
g
1.5V
diff. gain/diff. phase
into 150X
# 800 V/ms slew rate
# Large output drive current:
100 mA (EL2170C)
55 mA (EL2270C)
55 mA (EL2470C)
# Also available with disable in
single (EL2176C) and dual
(EL2276C)
# Higher speed EL2180C/EL2186C
family also available (3 mA/
250 MHz) in single, dual and
quad
Applications
General Description
The EL2170C/EL2270C/EL2470C are single/dual/quad current-feedback operational amplifiers which achieve a
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
plies ranging from
a
g
1.5V tog6V, or from single sup-
3V toa12V. In spite of their low supply
current, the EL2270C and the EL2470C can output 55 mA while
swinging to
g
4V ong5V supplies. The EL2170C can output
100 mA with similar output swings. These attributes make the
EL2170C/EL2270C/EL2470C excellent choices for low power
and/or low voltage cable-driver, HDSL, or RGB applications.
For applications where board space is extremely critical, the
EL2170C is available in the tiny 5-Lead SOT23 package, which
has a footprint 28% the size of an 8-Lead SOIC. The EL2170C/
EL2270C/EL2470C are each also available in industry standard
pinouts in PDIP and SOIC packages.
For Single and Dual applications with disable, consider the
EL2176C (8-Pin Single) or EL2276C (14-Pin Dual). For higher
speed applications where power is still a concern, consider the
EL2180C/El2186C family which also comes in similar Single,
Dual, Triple and Quad configurations. The EL2180C/EL2186C
family provides a
b
3 dB bandwidth of 250 MHz while consum-
ing 3 mA of supply current per amplifier.
b
3dB
Connection Diagrams
EL2170C SO, P-DIP EL2270C SO, P-DIP
# Low power/battery applications
# HDSL amplifiers
# Video amplifiers
# Cable drivers
# RGB amplifiers
# Test equipment amplifiers
# Current to voltage converters
EL2170C SOT23-5
EL2470C SO, P-DIP
2170– 1
Ordering Information
Part No. Temp. Range Package Outline
EL2170CNb40§Ctoa85§C 8-Pin PDIP MDP0031
EL2170CSb40§Ctoa85§C 8-Pin SOIC MDP0027
EL2170CWb40§Ctoa85§C 5-Pin SOT23* MDP0038
EL2270CNb40§Ctoa85§C 8-Pin PDIP MDP0031
EL2270CSb40§Ctoa85§C 8-Pin SOIC MDP0027
EL2470CNb40§Ctoa85§C 14-Pin PDIP MDP0031
EL2470CSb40§Ctoa85§C 14-Pin SOIC MDP0027
*See Ordering Information section of
databook.
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.
Ý
Top View
2170– 46
2170– 2
Page 2
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Absolute Maximum Ratings
Voltage between V
Common-Mode Input Voltage V
Differential Input Voltage
Current into
Internal Power Dissipation See Curves
Operating Ambient Temperature Range
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 T
Test Level Test Procedure
I 100% production tested and QA sample tested per QA test plan QCX0002.
II 100% production tested at T
III QA sample tested per QA test plan QCX0002.
IV Parameter is guaranteed (but not tested) by Design and Characterization Data.
V Parameter is typical value at T
S
a
IN orbIN
a
and V
T
MAX
b
S
and T
b
A
per QA test plan QCX0002.
MIN
DC Electrical Characteristics
Parameter Description Conditions Min Typ Max
V
OS
TCV
OS
dV
OS
a
I
IN
daI
IN
b
I
IN
dbI
IN
CMRR Common Mode Rejection V
b
ICMR
Input Offset Voltage 2.5 15 I mV
Average Input Offset Measured from T
Voltage Drift
VOSMatching EL2270C, EL2470C only 0.5 V mV
a
Input Current 0.5 5 I mA
a
IINMatching EL2270C, EL2470C only 20 V nA
b
Input Current 4 15 I mA
b
IINMatching EL2270C, EL2470C only 1.5 V mA
Ratio
b
Input Current Common V
Mode Rejection
e
(T
25§C)
A
S
b
g
a
12.6V
to V
g
7.5 mA
Operating Junction Temperature
a
S
6V
Plastic Packages 150
Output Current (EL2170C)
Output Current (EL2270C)
Output Current (EL2470C)
40§Ctoa85§C
e
25§C and QA sample tested at T
e
25§C for information purposes only.
A
e
V
S
e
g
CM
e
g
CM
Storage Temperature Range
e
g
5V, R
L
MIN
3.5V 45 50 I dB
3.5V 4 10 I mA/V
150X,T
to T
MAX
e
25§C,
A
e
25§C unless otherwise specified
A
5VmV/§C
b
65§Ctoa150§C
e
e
T
J
C
Test
Level
TA.
g
120 mA
g
g
Units
§
60 mA
60 mA
PSRR Power Supply Rejection VSis moved fromg4V tog6V 60 70 I dB
Ratio
b
IPSR
b
Input Current Power VSis moved fromg4V tog6V 0.5 5 I mA/V
Supply Rejection
e
R
OL
a
R
IN
a
C
IN
Transimpedance V
a
Input Resistance V
a
Input Capacitance 1.2 V pF
CMIR Common Mode Input Range
g
OUT
CM
2.5V 150 400 I kX
e
g
3.5V 1 4 I MX
g
3.5g4.0 I V
C
TDis3.8in
2
Page 3
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
DC Electrical Characteristics
e
g
V
S
5V, R
L
e
150X,T
e
25§C unless otherwise specified
A
Ð Contd.
Parameter Description Conditions Min Typ Max
e
V
O
I
O
Output Voltage Swing V
Output Current EL2170C only 80 100 I mA
g
5
S
ea
V
5 Single-Supply, High 4.0 V V
S
ea
V
5 Single-Supply, Low 0.3 V V
S
g
3.5
g
4.0 I V
EL2270C only, per Amplifier 50 55 I mA
EL2470C only, per Amplifier 50 55 I mA
I
S
Supply Current Per Amplifier 1 2 I mA
AC Electrical Characteristics
e
g
V
S
Parameter Description Conditions Min Typ Max
b
3dBBW
b
3dBBW
SR Slew Rate V
tr,t
f
t
pd
OS Overshoot V
t
s
dG Differential Gain A
dP Differential Phase A
dG Differential Gain A
dP Differential Phase A
C
S
Note 1: DC offset from 0V to 0.714V, AC amplitude 286 mV
5V, R
e
e
R
F
1kX,R
G
b
3 dB Bandwidth A
b
3 dB Bandwidth A
Rise and Fall Time V
Propagation Delay V
0.1% Settling V
L
e
150X,T
e
25§C unless otherwise specified
A
ea
1 70 V MHz
V
ea
2 60 V MHz
V
OUT
OUT
OUT
OUT
OUT
V
V
V
V
e
e
e
e
e
ea
ea
ea
ea
g
g
g
g
g
2, R
2, R
1, R
1, R
ea
2.5V, A
2 400 800 IV V/ms
V
500 mV 4.5 V ns
500 mV 4.5 V ns
500 mV 3.0 V %
eb
2.5V, A
e
L
e
L
e
L
e
L
140Vns
V
150X (Note 1) 0.15 V %
150X (Note 1) 0.15 V
500X (Note 1) 0.02 V %
500X (Note 1) 0.01 V
Channel Separation EL2270C, EL2470C only, fe5 MHz 85 V dB
,fe3.58 MHz.
P-P
Test
Level
Test
Level
Units
TDis1.6inTDis2.6in
Units
§
§
3
Page 4
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Test Circuit
(per Amplifier)
Simplified Schematic
2170– 3
(per Amplifer)
2170– 4
4
Page 5
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Typical Performance Curves
Non-Inverting
Frequency Response (Gain)
Inverting Frequency
Response (Gain)
Transimpedance (ROL)
2170– 5
2170– 8
Non-Inverting
Frequency Response (Phase)
2170– 6
Inverting Frequency
Response (Phase)
2170– 9
PSRR and CMRR
Frequency Response for
Various RFand R
Frequency Response for
Various RLand C
Frequency Response
for Various C
G
L
b
IN
2170– 7
2170– 10
2170– 11
2170– 12
2170– 13
5
Page 6
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Typical Performance Curves
Voltage and Current
Noise vs Frequency
b
3 dB Bandwith and Peaking
vs Supply Voltage for
Various Non-Inverting Gains
Supply Current vs
Supply Voltage
2170– 14
2170– 17
Ð Contd.
2nd and 3rd Harmonic
Distortion vs Frequency
b
3 dB Bandwith and Peaking
vs Supply Voltage for
Various Inverting Gains
Common-Mode Input Range
vs Supply Voltage
2170– 15
2170– 18
Output Voltage
vs Frequency
Output Voltage Swing
vs Supply Voltage
Slew Rate vs
Supply Voltage
2170– 16
2170– 19
2170– 20
2170– 21
2170– 22
6
Page 7
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Typical Performance Curves
Input Bias Current vs
Die Temperature
b
3 dB Bandwith and Peaking
vs Die Temperature for
Various Non-Inverting Gains
Supply Current vs
Die Temperature
2170– 23
2170– 26
Ð Contd.
Short-Circuit Current vs
Die Temperature
b
3 dB Bandwith and Peaking
vs Die Temperature for
Various Inverting Gains
Input Voltage Range vs
Die Temperature
2170– 24
2170– 27
Transimpedance (R
Die Temperature
Input Offset Voltage vs
Die Temperature
Slew Rate vs
Die Temperature
OL
)vs
2170– 25
2170– 28
2170– 29
2170– 30
2170– 31
7
Page 8
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Typical Performance Curves
Differential Gain and
Phase vs DC Input Voltage
at 3.58 MHz/A
ea
2
V
2170– 32
Small-Signal Step Response
Ð Contd.
Differential Gain and
Phase vs DC Input Offset
at 3.58 MHz/A
V
ea
1
Settling Time vs
Settling Accuracy
2170– 33
Large-Signal Step Response
2170– 34
8-Pin Plastic DIP
Maximum Power Dissipation
vs Ambient Temperature
2170– 35
2170– 37
2170– 36
8-Lead SO
Maximum Power Dissipation
vs Ambient Temperature
2170– 38
8
Page 9
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Typical Performance Curves
14-Pin Plastic DIP
Maximum Power Dissipation
vs Ambient Temperature
2170– 39
Ð Contd.
14-Lead SO
Maximum Power Dissipation
vs Ambient Temperature
5-Lead Plastic SOT23
Maximum Power Dissipation
vs Ambient Temperature
2170– 40
2170– 47
Channel Separation
vs Frequency
2170– 41
9
Page 10
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Applications Information
Product Description
The EL2170C/EL2270C/EL2470C are currentfeedback operational amplifiers that offer a wide
b
3 dB bandwidth of 70 MHz and a low supply
current of 1 mA per amplifier. All of these products also feature high output current drive. The
EL2170C can output 100 mA, while the EL2270C
and the EL2470C can output 55 mA per amplifier. The EL2170C/EL2270C/EL2470C work with
supply voltages ranging from a single 3V to
g
6V, and they are also capable of swinging to
within 1V of either supply on the input and the
output. Because of their current-feedback topology, the EL2170C/EL2270C/EL2470C do not
have the normal gain-bandwidth product associated with voltage-feedback operational amplifiers. This allows their
main relatively constant as closed-loop gain is increased. This combination of high bandwidth and
low power, together with aggressive pricing make
the EL2170C/EL2270C/EL2470C the ideal
choice for many low-power/high-bandwidth applications such as portable computing, HDSL,
and video processing.
For applications where board space is extremely
critical, the EL2170C is available in the tiny 5Lead SOT23 package, which has a footprint 28%
the size of an 8-Lead SOIC. The EL2170C/
EL2270C/EL2470C are each also available in industry standard pinouts in PDIP and SOIC packages.
For Single and Dual applications with disable,
consider the EL2176C (8-Pin Single) and
EL2276C (14-Pin Dual). If higher speed is required, refer to the EL2180C/EL2186C family
which provides Singles, Duals, Triples, and
Quads with 250 MHz of bandwidth while consuming 3 mA of supply current per amplifier.
b
3 dB bandwidth to re-
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 construction 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.
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 feedback and gain resistors further exacerbates the
problem by further lowering the pole frequency.
10
Page 11
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Applications Information
Ð Contd.
The experienced user with a large amount of PC
board layout experience may find in rare cases
that the EL2170C/EL2270C/EL2470C have less
bandwidth than expected. 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 R
Frequency Response for Various C
and RG, and
F
.
b
IN
Feedback Resistor Values
The EL2170C/EL2270C/EL2470C have been designed and specified at gains of
e
R
1kX. This value of feedback resistor gives
F
70 MHz of
b
3 dB bandwidth at A
about 1.5 dB of peaking, and 60 MHz of
bandwidth at A
V
ea
a
1 anda2 with
ea
V
1 with
b
3dB
2 with about 0.5 dB of
peaking. Since the EL2170C/EL2270C/EL2470C
are current-feedback amplifiers, it is also possible
to change the value of R
to get more bandwidth.
F
As seen in the curve of Frequency Response For
Various R
and RG, bandwidth and peaking can
F
be easily modified by varying the value of the
feedback resistor.
Because the EL2170C/EL2270C/EL2470C are
current-feedback amplifiers, their gain-bandwidth product is not a constant for different
closed-loop gains. This feature actually allows
the EL2170C/EL2270C/EL2470C 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 R
below the spec-
F
ified 1 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 EL2170C/EL2270C/EL2470C 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 EL2170C/
EL2270C/EL2470C will operate on dual supplies
ranging from
g
1.5V tog6V. With a single-supply, the EL2170C/EL2270C/EL2470C will operate from
a
3V toa12V.
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 EL2170C/EL2270C/
EL2470C have an input voltage range that extends to within 1V of either supply. So, for example, on a single
a
5V supply, the EL2170C/
EL2270C/EL2470C have an input range which
spans from 1V to 4V. The output range of the
EL2170C/EL2270C/EL2470C is also quite large,
extending to within 1V of the supply rail. On a
g
5V supply, the output is therefore capable of
swinging from
b
4V toa4V. Single-supply output range is even larger because of the increased
negative swing due to the external pull-down resistor to ground. On a single
a
5V supply, output
voltage range is about 0.3V to 4V.
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 EL2170C/EL2270C/EL2470C,
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 more than
the entire 1 mA supply current of each EL2170C/
EL2270C/EL2470C amplifier! Special circuitry
has been incorporated in the EL2170C/
EL2270C/EL2470C 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 ofa2.
§
11
Page 12
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Applications Information
Ð Contd.
Video Performance has also been measured with
a 500X load at a gain of
a
1. Under these conditions, the EL2170C/EL2270C/EL2470C have dG
and dP specifications of 0.01% and 0.02
tively while driving 500 X at A
V
ea
§
1.
respec-
Output Drive Capability
In spite of its low 1 mA of supply current, the
EL2170C is capable of providing a minimum of
g
80 mA of output current. Similarly, each amplifier of the EL2270C and the EL2470C is capable of providing a minimum of
g
50 mA. These
output drive levels are unprecedented in amplifiers running at these supply currents. With a min-
g
imum
capable of driving 50X loads to
80 mA of output drive, the EL2170C is
g
4V, making it
an excellent choice for driving isolation transformers in telecommunications applications.
Similarly, the
g
50 mA minimum output drive of
each EL2270C and EL2470C amplifier allows
swings of
g
2.5V into 50X loads.
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 EL2170C/
EL2270C/EL2470C 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 (R
G
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
(R
) to reduce the peaking.
F
Current Limiting
The EL2170C/EL2270C/EL2470C 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
EL2170C/EL2270C/EL2470C, it is possible to
exceed the 150
C Absolute Maximum junction
§
temperature under certain very high load current
conditions. Generally speaking, when R
low about 25X, it is important to calculate the
maximum junction temperature (T
JMAX
application to determine if power-supply voltages, load conditions, or package type need to be
modified for the EL2170C/EL2270C/EL2470C to
remain in the safe operating area. These parameters are calculated as follows:
T
JMAX
e
T
MAX
a
(iJA* n * PD
MAX
where:
T
i
n
MAX
JA
e
Maximum Ambient Temperature
e
Thermal Resistance of the Package
e
Number of Amplifiers in the Package
MAX
e
Maximum Power Dissipation of
PD
Each Amplifier in the Package.
PD
for each amplifier can be calculated as
MAX
follows:
MAX
(V
e
(2 * VS* I
b
S
V
OUTMAX
SMAX
PD
)
)
) * (V
OUTMAX/RL
a
where:
V
S
I
SMAX
e
Supply Voltage
e
Maximum Supply Current of 1
Amplifier
V
OUTMAX
e
Max. Output Voltage of the Application
R
L
e
Load Resistance
falls be-
L
) for the
)
))[2
[1]
]
12
Page 13
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Typical Application Circuits
Inverting 200 mA Output Current Distribution Amplifier
Fast-Settling Precision Amplifier
13
2170– 42
2170– 43
Page 14
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
Typical Application Circuits
Differential Line-Driver/Receiver
Ð Contd.
2170– 44
14
Page 15
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
EL2170C/EL2270C/EL2470C Macromodel
* Revision A, March 1995 * Transimpedance Stage
* AC characteristics used Rf
* Connections:
*
*
*
*
*
.subckt EL2170/el 32746 q141819qp
* q271820qn
*Input Stage q3 7 19 21 qn
* q442022qp
e1100301.0 r72164
vis1090V r82264
h2 9 12 vxx 1.0 ios1 7 19 0.4mA
r1 2 11 165 ios2 20 4 0.4mA
l1 11 12 25nH *
iinp 3 0 0.5uA * Supply Current
iinm 2 0 4uA *
r12 3 0 4Meg ips741nA
**
*Slew Rate Limiting * Error Terms
**
h1 13 0 vis 600 ivos 0 23 2mA
r2 13 14 1K vxx 23 0 0V
d1 14 0 dclamp e4 240301.0
d2 0 14 dclamp e5 250701.0
* e626040
* High Frequency Pole r9 24 23 0.316K
* r10 25 23 3.2K
e2 30 0 14 0 0.00166666666 r11 26 23 3.2K
l3 30 17 0.5uH *
c5 17 0 0.69pF * Models
r5 17 0 300 *
* .model qn npn(is
eRge
a
input g1 0 18 17 0 1.0
l
ll
lll
llll
lllll
1KX,RLe150X *
b
input rol 18 0 400K
a
Vsupply cdp 18 0 1.9pF
b
Vsupply *
output * Output Stage
*
.model qp pnp(is
.model dclamp d(is
abve
.ends
b
1.0
1.3v ne4)
e
5e-15 bfe200 tfe0.01nS)
e
5e-15 bfe200 tfe0.01nS)
e
1e-30 ibve0.266
TDis5.2in
15
Page 16
EL2170C/EL2270C/EL2470C
70 MHz/1 mA Current Mode Feedback Amplifiers
EL2170C/EL2270C/EL2470C Macromodel
EL2170C/EL2270C/EL2470CJanuary 1996, Rev. B
Ð Contd.
2170– 45
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 Ð Life Support Policy
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 in-
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tended 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.16
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