MAXIM MAX9115 User Manual
General Description
The MAX9115 is a single low-voltage differential signaling (LVDS) line receiver ideal for applications requiring
high data rates, low power, and low noise. The device
is guaranteed to receive data at speeds up to 200Mbps
(100MHz).
The MAX9115 accepts an LVDS differential input and
translates it to an LVTTL/LVCMOS output. The fail-safe
feature sets the output high when the inputs are undriven and open, terminated, or shorted. The device supports a wide common-mode input range, allowing a
ground potential difference and common-mode noise
between the driver and the receiver. The MAX9115
conforms to the ANSI TIA/EIA-644 LVDS standard.
The MAX9115 operates from a single +3.3V supply,
and is specified for operation from -40°C to +85°C. It is
available in a space-saving 5-pin SC70 package. Refer
to the MAX9110/MAX9112 data sheet for single/dual
LVDS line drivers.
Applications
Clock Distribution
Cellular Phone Base Stations
Digital Cross-Connects
Network Switches/Routers
DSLAMs
Laser Printers
Features
♦ Space-Saving SC70 Package (50% Smaller than
SOT23)
♦ Guaranteed 200Mbps Data Rate
♦ Low 350ps (max) Pulse Skew
♦ High-Impedance LVDS Inputs When Powered Off
Allow Hot Swapping
♦ Conforms to ANSI TIA/EIA-644 LVDS Standard
♦ Single +3.3V Supply
♦ Fail-Safe Circuit Sets Output High for Undriven
Inputs (Open, Terminated, or Shorted)
♦ Low 150µA (typ) Supply Current in Fail-Safe Mode
MAX9115
Single LVDS Line Receiver in SC70
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-1995; Rev 0; 4/01
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Typical Application Circuit
GND
IN+IN-
15OUTVCC
MAX9115
SC70
TOP VIEW
2
34
Rx
Pin Configuration
PART
MAX9115EXK-T -40°C to +85°C 5 SC70-5 ACI
TEMP.
RANGE
PINPACKAGE
TOP
MARK
CLOCK
INPUT
MAX9115
Rx
CLOCK
SOURCE
REFERENCE CLOCK DISTRIBUTION
USING MAX9115 IN A MULTIDROP CONFIGURATION
Tx
MAX9115
Rx
CLOCK
INPUT
LVDS SIGNALS
MAX9115
Rx
CLOCK
INPUT
100Ω
TERMINATION
MAX9115
Single LVDS Line Receiver in SC70
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(VCC= +3.0V to +3.6V, differential input voltage |VID| = 0.05V to 1.0V, input common voltage VCM= |VID/2| to 2.4V - |VID/2|,
T
A
= -40°C to +85°C, unless otherwise noted. Typical values at VCC= +3.3V, TA= +25°C.) (Notes 2, 3)
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.
Note 1: Package leads soldered to a PC board having copper ground and VCCplanes. Do not exceed Maximum Junction Temperature.
V
CC
to GND...........................................................-0.3V to +4.0V
IN+, IN- to GND.....................................................-0.3V to +4.0V
OUT to GND ...............................................-0.3V to (V
CC
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C).............247 mW
Output Short to GND (OUT) (Note 1)........................................1s
Storage Temperature Range .............................-65°C to +150°C
Maximum Junction Temperature .....................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Lead Temperature (soldering, 10s) .................................+300°C
ESD Protection
Human Body Model (IN+, IN-) .........................................±6kV
LVDS INPUTS (IN+, IN-)
Differential Input High Threshold V
Differential Input Low Threshold V
Input Current I
Power-Off Input Current I
Input Resistance
LVTTL/LVCMOS OUTPUT (OUT)
Output High Voltage V
Output Low Voltage V
Output Short-Circuit Current I
SUPPLY CURRENT
Supply Current I
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
TH
TL
0.05V ≤VID≤ 0.6V -20 20
, I
IN+
IN-
0.6V <VID≤ 1.0V -25 25
INO
R
R
OS
CC
0.05V ≤VID≤ 0.6V, V
0.6V <VID≤ 1.0V, V
VCC = +3.6V or 0, Figure 1 35
IN1
VCC = +3.6V or 0, Figure 1 132
IN2
OHIOH
OL
= - 8.0m A
IOL = +8.0mA, VID = -50mV 0.25 V
VID = +50mV, V
No load, inputs undriven (fail-safe) 150 300 µA
No load, inputs driven 7 mA
50 mV
-50 mV
= 0 -20 20
CC
= 0 -25 25
CC
Inp uts op en or und r i ven shor t
or und r i ven 100Ω ter m i nati on
= +50mV VCC - 0.3
V
ID
= 0 -125 mA
OUT
- 0.3
V
CC
µA
µA
kΩ
V
MAX9115
Single LVDS Line Receiver in SC70
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS
(VCC= +3.0V to +3.6V, CL= 15pF, differential input voltage |VID| = 0.15V to 1.0V, input common voltage VCM= |VID/2| to 2.4V - |V
ID
/2|, input rise and fall time = 1ns (20% to 80%), input frequency = 100MHz, TA= -40°C to +85°C, unless otherwise noted. Typical values at V
CC
= +3.3V, |VID| = 0.2V, VCM= 1.2V, TA= +25°C.) (Figures 2 and 3) (Notes 4 and 5)
Note 2: Maximum and minimum limits over temperature are guaranteed by design and characterization. Devices are production
tested at T
A
= +25°C.
Note 3: Current into a pin is defined as positive. Current out of a pin is defined as negative. All voltages are referenced to ground
except V
TH
, VTL, and VID.
Note 4: AC parameters are guaranteed by design and characterization.
Note 5: CL includes scope probe and test jig capacitance.
Note 6: t
SKD1
is the magnitude difference of differential propagation delays. t
SKD1
= |t
PHLD
- t
PLHD
|.
Note 7: t
SKD2
is the magnitude difference of any differential propagation delays between parts operating over rated conditions at
the same V
CC
and within 5°C of each other.
Note 8: t
SKD3
is the magnitude difference of any differential propagation delays between parts operating over rated conditions.
Note 9: f
MAX
pulse generator output conditions: rise-time = fall-time = 1ns (0% to 100%), 50% duty cycle, VOH= +1.3V, VOL=
+1.1V. MAX9115 output criteria: 60% to 40% duty cycle, V
OL
= 0.25V max, VOH= 2.7V min, load = 15pF.
Differential Propagation Delay
High to Low
Differential Propagation Delay
Low to High
Differential Pulse Skew
|t
PHLD
Differential Part-to-Part Skew
(Note 7)
Differential Part-to-Part Skew
(Note 8)
Rise-Time t
Fall-Time t
Maximum Operating Frequency
(Note 9)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
t
PHLD
t
PLHD
t
t
| (Note 6)
PLHD
-
SKD1
t
SKD2
t
SKD3
TLH
THL
f
MAX
1.2 1.9 3 ns
1.2 1.9 3 ns
350 ps
1.3 ns
1.8 ns
0.5 0.8 ns
0.5 0.8 ns
100 MHz
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