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SGM8708 PDF Datasheet - Shengbang Microelectronics

Part Number SGM8708
Description Dual Push-Pull Output Comparator
Manufacturers Shengbang Microelectronics 
Logo Shengbang Microelectronics Logo 
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SGM8708 datasheet, circuit
SGM8708
Micro-Power, RRIO, 1.8V, Dual Push-Pull Output
Comparator with Integrated Voltage Reference
GENERAL DESCRIPTION
The SGM8708 is a low power comparator with a typical
power supply current of 2.2µA. It features an uncommitted
on-chip voltage reference, comparator input common mode
range of 200mV beyond the supply rails, and single-supply
operation from 1.8V to 5.5V. The integrated 1.2V series
voltage reference offers low 42µV/drift, is stable with up
to 10nF capacitive load, and can source up to 2mA (TYP) of
output current.
Designed to operate over a wide range of supply voltages,
from 1.8V to 5.5V, with guaranteed operation at 1.8V and
5.0V, the SGM8708 is ideal for use in a variety of
battery-powered applications. With rail-to-rail input common
mode voltage range, the SGM8708 is well suited for
single-supply operation. Its small packages make this
device ideal for use in handheld electronics and mobile
phone applications.
Featuring a push-pull output stage and having a latch
enable input (LE ), the SGM8708 allows for operation with
absolute minimum power consumption when driving any
capacitive or resistive load.
SGM8708 is available in Green SOT-23-8 and SOIC-8
packages. It is rated over the -40to +85temperature
range.
APPLICATIONS
RC Timers
Window Detectors
IR Receiver
Multivibrators
Alarm and Monitoring Circuits
FEATURES
Low Power Consumption:
2.2µA (TYP) at VS = 1.8V
Wide Supply Voltage Range: 1.8V to 5.5V
Push-Pull Output Current Drive:
18mA (TYP) at VS = 5V
Rail-to-Rail Input
VOUT and VOUT Dual Outputs
Latch Function Included
Integrated 1.2V Voltage Reference
-40to +85Operating Temperature Range
Available in Green SOT-23-8 and SOIC-8
Packages
PIN CONFIGURATIONS (TOP VIEW)
VOUT 1
-VS 2
VIN+ 3
VREF 4
+
SOT-23-8
8 VOUT
7 +VS
6 LE
5 VIN-
VREF 1
VIN+ 2
-VS 3
VOUT 4
+
SOIC-8
8 VIN-
7 LE
6 +VS
5 VOUT
SG Micro Corp
www.sg-micro.com
REV. A. 1

1 page
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SGM8708 pdf, schematic
SGM8708
Micro-Power, RRIO, 1.8V, Dual Push-Pull Output
Comparator with Integrated Voltage Reference
PACKAGE/ORDERING INFORMATION
MODEL
PIN-
PACKAGE
SPECIFIED
TEMPERATURE
RANGE
ORDERING
NUMBER
PACKAGE
MARKING
PACKAGE
OPTION
SGM8708
SOT-23-8
SOIC-8
-40to +85
-40to +85
SGM8708YN8G/TR
SGM8708YS8G/TR
NOTE: XX = Date Code. XXXXX = Date Code and Vendor Code.
SH7XX
SGM
8708YS8
XXXXX
Tape and Reel, 3000
Tape and Reel, 2500
MARKING INFORMATION
SH7 X X
Date code - Month ("A" = Jan. "B" = Feb. "L" = Dec.)
Date code - Year ("A" = 2010, "B" = 2011 )
Chip I.D.
For example: SH7CA (2012, January)
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, +VS to -VS ...…………………………….……..6V
VIN Differential..……………………………………….±(+VS - (-VS))
Voltage at Input/Output Pins………..(-VS) - 0.3V to (+VS) + 0.3V
Operating Temperature Range............................-40to +85
Junction Temperature....................................................... 150
Storage Temperature Range..............................-65to +150
Lead Temperature (Soldering, 10s) ..................................260
ESD Susceptibility
HBM..................................................................................4000V
MM......................................................................................400V
NOTE:
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.
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.
SGMICRO reserves the right to make any change in circuit
design, specification or other related things if necessary without
notice at any time. Please contact SGMICRO sales office to get
the latest datasheet.
SG Micro Corp
www.sg-micro.com
2

2 Page
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SGM8708 equivalent
SGM8708
Micro-Power, RRIO, 1.8V, Dual Push-Pull Output
Comparator with Integrated Voltage Reference
TYPICAL PERFORMANCE CHARACTERISTICS
Propagation Delay vs. Input Common Mode Voltage
24
20
-40
16
12 +25
8
4 VS = 5V
VOD = 20mV
0
01
+85
23
4
Input Common Mode Voltage (V)
5
Propagation Delay vs. Supply Voltage
18
-40
15
12
+25
9
6 +85
3 VCM = VS /2
VOD = 20mV
0
1234
Supply Voltage (V)
5
6
Propagation Delay vs. Overdrive
25
VS = 5V
20 VCM = 0.5V
15
10 +85
-40+25
5
0
-500
-400 -300 -200
Overdrive (mV)
-100
0
Propagation Delay vs. Input Common Mode Voltage
70
60 -40
50
40 +25
30
20
10 VS = 5V
VOD = 20mV
0
+85
01234
Input Common Mode Voltage (V)
5
Propagation Delay vs. Supply Voltage
70
60
VCM = VS /2
VOD = 20mV
-40
50
40 +25
30
20
10
1
+85
2345
Supply Voltage (V)
6
80
70
60
50
40
30
20
10
0
Propagation Delay vs. Overdrive
-40
VS = 5V
VCM = 0.5V
+25
+85
100 200 300 400 500
Overdrive (mV)
SG Micro Corp
www.sg-micro.com
5

5 Page
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SGM8708 diode, scr
SGM8708
TIMING DIAGRAM
Micro-Power, RRIO, 1.8V, Dual Push-Pull Output
Comparator with Integrated Voltage Reference
DIFFERENTIAL
INPUT VOLTAGE
VOS VOD
VS
LE VS/2
0
VOH
OUT VS/2
VOL
tPD
tLPD
Figure 1. Timing Diagram with Latch Operator
SG Micro Corp
www.sg-micro.com
9

9 Page





Information Total 13 Pages
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