19-1771; Rev 0; 9/00
Single/Dual LVDS Line Drivers with
Ultra-Low Pulse Skew in SOT23
General Description
The MAX9110/MAX9112 single/dual low-voltage differ-
ential signaling (LVDS) transmitters are designed for
high-speed applications requiring minimum power con-
sumption, space, and noise. Both devices support
switching rates exceeding 500Mbps while operating
from a single +3.3V supply, and feature ultra-low 250ps
(max) pulse skew required for high-resolution imaging
applications, such as laser printers and digital copiers.
The MAX9110 is a single LVDS transmitter, and the
MAX9112 is a dual LVDS transmitter.
Both devices conform to the EIA/TIA-644 LVDS standard.
They accept LVTTL/CMOS inputs and translate them to
low-voltage (350mV) differential outputs, minimizing elec-
tromagnetic interference (EMI) and power dissipation.
These devices use a current-steering output stage, mini-
mizing power consumption, even at high data rates. The
MAX9110/MAX9112 are available in space-saving 8-pin
SOT23 and SO packages. Refer to the MAX9111/
MAX9113 data sheet for single/dual LVDS line receivers.
Features
♦
Low 250ps (max) Pulse Skew for High-Resolution
Imaging and High-Speed Interconnect
♦
Space-Saving 8-Pin SOT23 and SO Packages
♦
Pin-Compatible Upgrades to DS90LV017/017A
and DS90LV027/027A (SO Packages)
♦
Guaranteed 500Mbps Data Rate
♦
Low 22mW Power Dissipation at 3.3V
(31mW for MAX9112)
♦
Conform to EIA/TIA-644 Standard
♦
Single +3.3V Supply
♦
Flow-Through Pinout Simplifies PC Board Layout
♦
Driver Outputs High Impedance when Powered Off
MAX9110/MAX9112
________________________Applications
Laser Printers
Digital Copiers
Cellular Phone Base
Stations
Telecom Switching
Equipment
Typical Operating Circuit appears at end of data sheet.
Ordering Information
PART
MAX9110EKA-T
MAX9110ESA
MAX9112EKA-T
MAX9112ESA
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
8 SOT23-8
8 SO
8 SOT23-8
8 SO
TOP
MARK
AADN
—
AADO
—
Network Switches/Routers
LCD Displays
Backplane Interconnect
Clock Distribution
Pin Configurations/Functional Diagrams/Truth Table
TOP VIEW
MAX9110
V
CC
1
DIN
2
N.C.
3
8
7
6
5
DO-
DIN
1
MAX9110
8
7
6
5
DO-
DO+
N.C.
N.C.
V
CC
1
DIN1
2
DIN2
3
MAX9112
8
7
6
5
DO1- DIN1
1
DO1+ GND
2
DO2+ DIN2
DO2-
3
MAX9112
8
7
6
5
DO1-
DO1+
DO2+
DO2-
DO+ GND
2
N.C.
N.C.
N.C.
3
GND
4
V
CC
4
GND
4
V
CC
4
SO
SOT23
DIN_
L
H
0.8V < V
DIN
_ < 2.0V
DO_+
L
H
X
SO
DO_-
H
L
X
H = LOGIC LEVEL HIGH
L = LOGIC LEVEL LOW
X = UNDETERMINED
SOT23
________________________________________________________________
Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Single/Dual LVDS Line Drivers with
Ultra-Low Pulse Skew in SOT23
MAX9110/MAX9112
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
CC
to GND) ..................................-0.3V to +4V
Input Voltage (V
DIN_
to GND).....................-0.3V to (V
CC
+ 0.3V)
Output Voltage (V
DO
_+, V
DO
_- to GND or V
CC
) ...-0.3V to +3.9V
Output Short-Circuit Duration
(DO_+, DO_- to V
CC
or GND) ................................Continuous
ESD Protection (Human Body Model, DO_+, DO_-)..........±11kV
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SOT23 (derate 7.52mW/°C above +70°C)...........602mW
8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering,10s) ..................................+300°C
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
(V
CC
= +3.0V to +3.6V, R
L
= 100Ω ±1%, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.3V, T
A
=
+25°C.) (Notes 1, 2)
PARAMETER
Differential Output Voltage
Change in Magnitude of Output
Voltage for Complementary
Output States
Offset Voltage
Change in Magnitude of Offset
Voltage for Complementary
Output States
Power-Off Leakage Current
Short-Circuit Output Current
Input High Voltage
Input Low Voltage
Input Current High
Input Current Low
No-Load Supply Current
Supply Current
SYMBOL
V
OD
ΔV
OD
V
OS
ΔV
OS
I
O(OFF)
I
O(SHORT)
V
IH
V
IL
I
IH
I
IL
I
CC
I
CC
DIN_ = V
CC
or 2V
DIN_ = GND or 0.8V
No load, DIN_ = V
CC
or 0
DIN_ = V
CC
or 0
MAX9110
MAX9112
Figure 1
Figure 1
Figure 1
Figure 1
V
DO
_ _ = 0 or V
CC
, V
CC
= 0 or open
DIN_ = V
CC
, V
DO_+
= 0 or
DIN_ = GND, V
DO
_- = 0
2.0
GND
0
-20
10
-3
4.5
6.7
9.4
CONDITIONS
MIN
250
0
1.125
0
-10
TYP
350
2
1.25
2
MAX
450
35
1.375
25
+10
-20
V
CC
0.8
20
0
6
8
13
UNITS
mV
mV
V
mV
µA
mA
V
V
µA
µA
mA
mA
AC CHARACTERISTICS
(V
CC
= +3.0V to +3.6V, R
L
= 100Ω ±1%, C
L
= 5pF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.3V,
T
A
= +25°C.) (Notes 3, 4, 5; Figures 2, 3)
PARAMETER
Differential High-to-Low
Propagation Delay
Differential Low-to-High
Propagation Delay
Differential Pulse Skew
|t
PHLD
- t
PLHD
| (Note 6)
Channel-to-Channel Skew (Note 7)
SYMBOL
t
PHLD
t
PLHD
t
SKD1
t
SKD2
CONDITIONS
MIN
1
1
TYP
1.54
1.58
40
70
MAX
2.5
2.5
250
400
UNITS
ns
ns
ps
ps
2
_______________________________________________________________________________________
Single/Dual LVDS Line Drivers with
Ultra-Low Pulse Skew in SOT23
AC CHARACTERISTICS (continued)
(V
CC
= +3.0V to +3.6V, R
L
= 100Ω ±1%, C
L
= 5pF, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= +3.3V,
T
A
= +25°C.) (Notes 3, 4, 5; Figures 2, 3)
PARAMETER
Part-to-Part Skew
High-to-Low Transition Time
Low-to-High Transition Time
Maximum Operating Frequency
SYMBOL
t
SKD3
t
SKD4
t
THL
t
TLH
f
MAX
(Note 10)
(Note 8)
(Note 9)
0.25
0.25
250
0.6
0.6
CONDITIONS
MIN
TYP
MAX
1
1.5
1
1
UNITS
ns
ns
ns
MHz
MAX9110/MAX9112
Note 1:
Maximum and minimum limits over temperature are guaranteed by design. Devices are production tested at T
A
= +25°C.
Note 2:
By definition, current into the device is positive and current out of the device is negative. Voltages are referred to device
ground except V
OD
.
Note 3:
AC parameters are guaranteed by design and characterization.
Note 4:
C
L
includes probe and fixture capacitance.
Note 5:
Signal generator conditions for dynamic tests: V
OL
= 0, V
OH
= 3V, f = 20MHz, 50% duty cycle, R
O
= 50Ω, t
R
≤
1ns, and t
F
≤
1ns (0 to 100%).
Note 6:
t
SKD1
is the magnitude difference of differential propagation delays in a channel; t
SKD1
=
|
t
PHLD
- t
PLHD
|
.
Note 7:
t
SKD2
is the magnitude difference of the t
PLHD
or t
PHLD
of one channel and the t
PLHD
or t
PHLD
of the other channel on the
same device (MAX9112).
Note 8:
t
SKD3
is the magnitude difference of any differential propagation delays between devices at the same V
CC
and within 5°C
of each other.
Note 9:
t
SKD4
is the magnitude difference of any differential propagation delays between devices operating over the rated supply
and temperature ranges.
Note 10:
f
MAX
signal generator conditions: V
OL
= 0, V
OH
= +3V, frequency = 250MHz, t
R
≤
1ns, t
F
≤
1ns (0 to 100%) 50% duty cycle.
Transmitter output criteria: duty cycle = 45% to 55%, V
OD
≥
250mV.
Typical Operating Characteristics
(V
CC
= +3.3V, R
L
= 100Ω, C
L
= 5pF, V
IH
= +3V, V
IL
= GND, f
IN
= 20MHz, T
A
= +25°C, unless otherwise noted.) (Figures 2, 3)
MAX9110
SUPPLY CURRENT
vs. INPUT FREQUENCY
A: V
CC
= +3.0V
B: V
CC
= +3.3V
C: V
CC
= +3.6V
MAX9110 toc01
SUPPLY CURRENT vs. TEMPERATURE
7.3
7.2
CURRENT SUPPLY (mA)
7.1
7.0
6.9
6.8
6.7
6.6
6.5
MAX9110 toc02
DIFFERENTIAL PROPAGATION DELAY
vs. SUPPLY VOLTAGE
MAX9110 toc03
9.5
9.0
SUPPLY CURRENT (mA)
8.5
8.0
7.5
A
7.0
6.5
1
100
10k
1M
100M
B
C
7.4
2.0
1.8
PROPAGATION DELAY (ns)
1.6
1.4
1.2
1.0
0.8
t
PHLD
t
PLHD
6.4
1G
-40
-15
10
35
60
85
INPUT FREQUENCY (Hz)
TEMPERATURE (°C)
3.0
3.1
3.2
3.3
3.4
3.5
3.6
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
3
Single/Dual LVDS Line Drivers with
Ultra-Low Pulse Skew in SOT23
MAX9110/MAX9112
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, R
L
= 100Ω, C
L
= 5pF, V
IH
= +3V, V
IL
= GND, f
IN
= 20MHz, T
A
= +25°C, unless otherwise noted.) (Figures 2, 3)
DIFFERENTIAL PROPAGATION DELAY
vs. TEMPERATURE
MAX9110 toc04
DIFFERENTIAL PULSE SKEW
vs. SUPPLY VOLTAGE
MAX9110 toc05
DIFFERENTIAL PULSE SKEW
vs. TEMPERATURE
MAX9110 toc06
2.0
1.8
PROPAGATION DELAY (ns)
1.6
1.4
1.2
1.0
0.8
-40
-15
10
35
60
t
PLHD
t
PHLD
100
DIFFERENTIAL PULSE SKEW (ps)
100
DIFFERENTIAL PULSE SKEW (ps)
80
80
60
60
40
40
20
20
0
85
3.0
3.1
3.2
3.3
3.4
3.5
3.6
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
0
-40
-15
10
35
60
85
TEMPERATURE (°C)
TRANSITION TIME vs. SUPPLY VOLTAGE
MAX9110 toc07
TRANSITION TIME vs. TEMPERATURE
MAX9110 toc08
OUTPUT VOLTAGE vs. SUPPLY VOLTAGE
1.45
1.40
OUTPUT VOLTAGE (V)
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
OUTPUT LOW
OUTPUT HIGH
MAX9110 toc09
700
650
TRANSITION TIME (ps)
600
550
500
450
400
350
300
3.0
3.1
3.2
3.3
3.4
3.5
t
TLH
t
THL
600
580
560
TRANSITION TIME (ps)
540
520
500
480
460
440
420
400
t
THL
t
TLH
1.50
3.6
-40
-15
10
35
60
85
3.0
3.1
3.2
3.3
3.4
3.5
3.6
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
DIFFERENTIAL OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
MAX9110 toc10
DIFFERENTIAL OUTPUT VOLTAGE
vs. LOAD RESISTANCE
DIFFERENTIAL OUTPUT VOLTAGE (mV)
425
400
375
350
325
300
275
250
75.0
87.5
100.0
112.5
125.0
137.5
150.0
V
CC
= +3.6V
V
CC
= +3V
MAX9110 toc11
450
DIFFERENTIAL OUTPUT VOLTAGE (mV)
425
400
375
350
325
300
275
250
3.0
3.1
3.2
3.3
3.4
3.5
450
V
CC
= +3.3V
3.6
SUPPLY VOLTAGE (V)
LOAD RESISTANCE (Ω)
4
_______________________________________________________________________________________
Single/Dual LVDS Line Drivers with
Ultra-Low Pulse Skew in SOT23
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, R
L
= 100Ω, C
L
= 5pF, V
IH
= +3V, V
IL
= GND, f
IN
= 20MHz, T
A
= +25°C, unless otherwise noted.) (Figures 2, 3)
OUTPUT HIGH VOLTAGE
vs. LOAD RESISTANCE
MAX9110 toc12
MAX9110/MAX9112
OUTPUT LOW VOLTAGE
vs. LOAD RESISTANCE
1.09
OUTPUT LOW VOLTAGE (V)
1.08
1.07
1.06
1.05
1.04
1.03
1.02
1.01
1.00
V
CC
= +3V
V
CC
= +3.3V
V
CC
= +3.6V
MAX9110 toc13
1.45
1.44
OUTPUT HIGH VOLTAGE (V)
1.43
1.42
1.41
1.40
1.39
1.38
1.37
1.36
1.35
75.0
87.5
100.0
112.5
125.0
137.5
V
CC
= +3.3V
V
CC
= +3V
V
CC
= +3.6V
1.10
150.0
75.0
87.5
100.0
112.5
125.0
137.5
150.0
LOAD RESISTANCE (Ω)
LOAD RESISTANCE (Ω)
Pin Description
PIN
MAX9110
SOT23
4
1
—
3, 5, 6
2
7
—
8
—
SO
1
2
—
3, 5, 6
4
7
—
8
—
SOT23
4
—
1, 3
—
2
—
6, 7
—
5, 8
MAX9112
SO
1
—
2, 3
—
4
—
6, 7
—
5, 8
V
CC
DIN
Transmitter Input
DIN1, DIN2
N.C.
GND
DO+
Noninverting Transmitter Output
DO2+, DO1+
DO-
Inverting Transmitter Output
DO2-, DO1-
No Connection. Not internally connected.
Ground
Positive Supply
NAME
FUNCTION
Detailed Description
The MAX9110/MAX9112 single/dual LVDS transmitters
are intended for high-speed, point-to-point, low-power
applications. These devices accept CMOS/LVTTL
inputs with data rates exceeding 500Mbps. The
MAX9110/MAX9112 reduce power consumption and
EMI by translating these signals to a differential voltage
in the 250mV to 450mV range across a 100Ω load while
drawing only 9.4mA of supply current for the dual-
channel MAX9112.
A current-steering approach induces less ground
bounce and no shoot-through current, enhancing noise
margin and system speed performance. The output
5
_______________________________________________________________________________________
京公网安备 11010802033920号
EEWORLD
