SGM8749
150ns, Low-Power, 3V/5V, Rail-to-Rail
Input Single-Supply Comparator
GENERAL DESCRIPTION
The SGM8749 is a single high-speed comparator
optimized for systems powered from a 3V or 5V supply.
The device features high-speed response, low-power
consumption, and rail-to-rail input range and open drain
output. Propagation delay is 150ns, while supply
current is only 22µA.
The input common mode range of the SGM8749
extends beyond both power supply rails. The output
pulls to within 0.1V of either supply rail without external
pull-up circuitry, making the device ideal for interface
with both CMOS and TTL logics. All input and output
pins can tolerate a continuous short-circuit fault
condition to either rail.
The SGM8749 is available in Green SOT-23-5 and
SC70-5 packages. It is rated over the -40℃ to +85℃
temperature range.
FEATURES
Fast, 150ns Propagation Delay (10mV Overdrive)
Low Power Consumption:
22μA (TYP) at V
S
= 3V
Wide Supply Voltage Range: 2.7V to 5.5V
Optimized for 3V and 5V Applications
Open Drain Output
Rail-to-Rail Input Voltage Range
Low Offset Voltage: 0.8mV (TYP)
Output Swing 185mV with 4mA Output Current
CMOS/TTL-Compatible Output
-40℃ to +85℃ Operating Temperature Range
Available
Packages
in
Green
SOT-23-5
and
SC70-5
PIN CONFIGURATIONS
(TOP VIEW)
IN+
1
5
+V
S
APPLICATIONS
Line Receivers
Battery-Powered Systems
Threshold Detectors/Discriminators
3V/5V Systems
Zero-Crossing Detectors
Sampling Circuits
-V
S
2
IN-
3
4
OUT
SOT-23-5/SC70-5
SG Micro Corp
www.sg-micro.com
REV. A
SGM8749
150ns, Low-Power, 3V/5V, Rail-to-Rail
Input Single-Supply Comparator
PACKAGE/ORDERING INFORMATION
MODEL
PACKAGE
DESCRIPTION
SC70-5
SGM8749
SOT-23-5
-40℃ to +85℃
SGM8749YN5G/TR
SS2XX
Tape and Reel, 3000
SPECIFIED
TEMPERATURE
RANGE
-40℃ to +85℃
ORDERING
NUMBER
SGM8749YC5G/TR
PACKAGE
MARKING
SS1XX
PACKING
OPTION
Tape and Reel, 3000
NOTE: XX = Date Code.
Green (RoHS & HSF):
SG Micro Corp defines "Green" to
mean Pb-Free (RoHS compatible) and free of halogen
substances. If you have additional comments or questions,
please contact your SGMICRO representative directly.
MARKING INFORMATION
SYY X X
Date code - Month ("A" = Jan. "B" = Feb.
…
"L" = Dec.)
Date code - Year ("A" = 2010, "B" = 2011
…)
Chip I.D.
For example: SS2FA (2015, January)
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, +V
S
to -V
S
. ............................................... 6V
V
IN
Differential................................................... ±(+V
S
- (-V
S
))
Voltage at Input/Output Pins ....... (-V
S
) - 0.3V to (+V
S
) + 0.3V
Junction Temperature ................................................. 150℃
Storage Temperature Range ........................-65℃ to +150℃
Lead Temperature (Soldering, 10s) ..............................260℃
ESD Susceptibility
HBM............................................................................. 2000V
MM................................................................................. 400V
OVERSTRESS CAUTION
Stresses beyond those listed may cause permanent damage
to the device. Functional operation of the device at these or
any other conditions beyond those indicated in the
operational section of the specification is not implied.
Exposure to absolute maximum rating conditions for
extended periods may affect reliability.
ESD SENSITIVITY CAUTION
This integrated circuit can be damaged by ESD if you don’t
pay attention to ESD protection. SGMICRO recommends that
all integrated circuits be handled with appropriate precautions.
Failure to observe proper handling and installation
procedures can cause damage. ESD damage can range from
subtle performance degradation to complete device failure.
Precision integrated circuits may be more susceptible to
damage because very small parametric changes could cause
the device not to meet its published specifications.
RECOMMENDED OPERATING CONDITIONS
Operating Temperature Range .......................-40℃ to +85℃
Operating Supply Voltage Range .......................2.7V to 5.5V
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, specification or other related things if
necessary without notice at any time.
SG Micro Corp
www.sg-micro.com
2
SGM8749
ELECTRICAL CHARACTERISTICS
150ns, Low-Power, 3V/5V, Rail-to-Rail
Input Single-Supply Comparator
(V
S
= 5V, V
CM
= 0V, C
L
= 15pF, typical values are at T
A
= +25℃, unless otherwise noted.)
PARAMETER
Operating Supply Voltage Range
(1)
(2)
SYMBOL
V
S
V
CM
CONDITIONS
MIN
2.7
-0.1
TYP
MAX
5.5
V
S
+ 0.1
UNITS
V
V
Input Common Mode Voltage Range
V
S
= 5V, V
CM
= 0V, Out = 0V
Input Offset Voltage
V
OS
-40℃ to +85℃
V
S
= 5V, V
CM
= 5V, Out = 0V
-40℃ to +85℃
Output Short-Circuit Current
(3)
0.8
4.5
4.7
mV
0.9
4.8
4.9
I
SINK
V
S
= 5V, Out to V
S
/2
-40℃ to +85℃
V
S
= 5V, V
CM
= 0V to 5V
-40℃ to +85℃
V
CM
= 0V, V
S
= 2.7V to 5.5V
-40℃ to +85℃
V
S
= 5V, I
O
= -4mA
-40℃ to +85℃
V
S
= 3V, I
O
= 0
60
58
68
66
-33
-28
-22
mA
Common Mode Rejection Ratio
CMRR
77
dB
Power Supply Rejection Ratio
PSRR
79
dB
218
262
Output Voltage Swing from Rail
V
OL
185
mV
22
32
38
µA
Supply Current
I
S
-40℃ to +85℃
V
S
= 5V, I
O
= 0
-40℃ to +85℃
25
35
44
Propagation Delay (High to Low)
V
S
= 3V, Overdrive = 10mV
V
S
= 3V, Overdrive = 100mV
t
FALL
Overdrive = 10mV
Overdrive = 100mV
150
97
8
6
ns
Fall Time
ns
NOTES:
1. Inferred from PSRR test.
2. Inferred from PD test. Note also that either or both inputs can be driven to the absolute maximum limit (0.1V beyond either
supply rail) without damage or false output inversion.
3. Specified over the full input common mode voltage range (V
CM
).
SG Micro Corp
www.sg-micro.com
3
SGM8749
150ns, Low-Power, 3V/5V, Rail-to-Rail
Input Single-Supply Comparator
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs. Temperature
Output Low Voltage vs. Temperature
300
250
200
150
100
I
SINK
= 4mA
50
50
Output Low Voltage (mV)
40
Supply Current (μA)
30
20
10
0
-50
V
S
= 5V
V
S
= 3V
V
S
= 3V
V
S
= 5V
-25
0
25
50
Temperature (
℃
)
75
100
-50
-25
0
25
50
Temperature (℃)
75
100
Propagation Delay vs. Input Overdrive
180
160
140
120
H-L
100
80
0
40
80
120
Input Overdrive (mV)
160
200
V
S
= 3V, V
CM
= 0V
R
L
= 10kΩ, C
L
= 18pF
Propagation Delay (ns)
140
130
120
110
Propagation Delay vs. Capacitive Load
V
S
= 3V, V
CM
= 0V
R
L
= 10kΩ, V
OD
= 100mV
Propagation Delay (ns)
H-L
100
90
80
0
30
60
90
120
Capacitive Load (pF)
150
180
Propagation Delay (H-L)
Propagation Delay (H-L)
V
OD
= 100mV, V
CM
= 0V
V
IN
V
OD
= 10mV, V
CM
= 0V
V
IN
100mV/div
0V
0V
100mV/div
V
OUT
1V/div
V
OUT
1V/div
0V
Time (50ns/div)
0V
Time (25ns/div)
SG Micro Corp
www.sg-micro.com
4
SGM8749
150ns, Low-Power, 3V/5V, Rail-to-Rail
Input Single-Supply Comparator
TYPICAL PERFORMANCE CHARACTERISTICS
Output Short-Circuit (Sink) Current vs. Temperature
Output Short-Circuit (Sink) Current (mA)
0
-10
V
S
= 3V
Offset Voltage Production Distribution
35
Percentage of Comparators (%)
30
25
20
15
10
5
0
0.00
1.00
2.00
3.00
4.00
-5.00
-4.00
-3.00
-2.00
-1.00
5.00
5900 Samples
1 Production Lot
V
S
= 5V
V
CM
= 0V
-20
-30
V
S
= 5V
-40
-50
-50
-25
0
25
50
Temperature (℃)
75
100
Offset Voltage (mV)
Offset Voltage Production Distribution
35
Percentage of Comparators (%)
30
25
20
15
10
5
0
-5.00
-4.00
-3.00
-2.00
-1.00
0.00
1.00
2.00
3.00
4.00
5.00
5900 Samples
1 Production Lot
V
S
= 5V
V
CM
= 5V
Offset Voltage (mV)
SG Micro Corp
www.sg-micro.com
5
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