supply current drain is independent of the magnitude of the power ... mW. Small Outline Package. PD. 510. mW. Output Sho
Low Power Low Offset Voltage Dual Comparators Product Description
Features
The GS393 consists of two independent precision voltage comparators which were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground, even though operated from a single power supply voltage. The GS393 was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the GS393 will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators.
Block Diagram
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Wide supply Voltage range: 2.0V to 32V. Low supply current drain independent of supply voltage. Low input biasing current: 25 nA typ. Low input offset current: 5 nA typ. Low input offset voltage: 3 mV typ. Input common-mode voltage range includes GND. Differential input voltage range equal to the power supply voltage Low output saturation voltage. Output voltage compatible with TTL, MOS and CMOS logic.
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Packages & Pin Assignments
Output A Inverting Input A
VCC
8
1
7
2 A
Output B
B Inverting
Non-Inverting Input A
3
6 Input B
GND
4
5 Non-Inverting Input B
Device
Package
GS393S
SOP-8
GS393P
DIP-8
Ordering & Marking Information GS P/N Package Code
GS Brand Name Part Number
GS393 P
GS 393 P F
F YWL G
Package Code Lead Free Date Code
Pb Free Code Ordering
GS Code
Marking
Absolute Maximum Ratings Parameter Supply Voltage Differential Input Voltage Input Voltage Input Current
Symbol
Value
Unit
VCC VIDR VIN IIN
36 36 -0.3V to +36 20
V V V mA
POWER DISSIPATION (Note 1) Molded DIP PD 780 mW Small Outline Package PD 510 mW Output Short-Circuit to GND IOS Continuous Operating Temperature Range TA 0 to 70 C Storage temperature Range TSTG -65 to 150 C DIP-8 125 Junction to Ambient θ JA C/W Thermo Resistance SOP-8 185 DIP-8 42 Junction to Case θ JC C/W Thermo Resistance SOP-8 22 ESD Rating (HBM) ESD 2K V Note 1: For operating at high temperatures, the GS393 must be derated based on a 125C maximum junction temperature and a thermal resistance of 170C/W which applies for the device soldered in a PCB, operating in a still air ambient. The low bias dissipation and the “ON-OFF” characteristic of the outputs keeps the chip dissipation very small (PD≦100mW), provided the output transistors are allowed to saturate.
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Electrical Characteristics at specified free-air temperature, VCC=5V (unless otherwise noted)
Parameter
Symbol
*Test conditions
Input offset voltage
VIO
VCC = 5 V to 30V, VIC = VICR min, Vo=1.4 V
Input offset current
lIO
Vo=1.4 V
Input bias current
IIB
Vo=1.4 V
VICR
-
**Common-mode input voltage range Large-signal differential voltage amplification High-level output current Low-level output voltage Low-level output current
AVD lOH
25 ℃
IOL = 4 mA, VID=-1V
lOL
VOL= 1.5V, VID=-1V
Typ
Max
2
5
Full range
VCC = 15 V, Vo=1.4V to 11.4 V, RL 15 k to VCC VOH=5 V, VID=1V, VOH= 30V, VID=1V
VOL
Min
9
25 ℃ Full range 25 ℃ Full range 25 ℃ Full range
0 to VCC - 1.5 0 to VCC - 2.0
25 ℃
50
5 -25
25 ℃ Full range 25 ℃ Full range 25 ℃
50 150 -250 -400
Unit mV nA nA V
200 0.1 150
V/mV 50 1 400 700
6
nA µA mV mA
VCC = 5V 0.8 1 25 ℃ mA VCC = 30V Full range 2.5 * Full range (MIN to MAX), for the GS393 is 0 ℃ to 70 ℃. All characteristics are measured with zero common-mode input voltage unless otherwise specified. ** The voltage at either input or common-mode should not be allowed to go negative by more than 0.3V. The upper end of the common-mode voltage range is VCC -1.5V, but either or both inputs can go to 30V without damage. Supply current
ICC
RL =
Switching Characteristics VCC=5V, TA=25 °C
Parameter Response time
Test conditions RL connected to 5V through 5.1 k, CL=15pF* (See Note 1)
Typ
100-mV input step with 5-mV overdrive
1.3
TTL-level input step
0.3
Unit µs
* CL includes probe and jig capacitance. Note 1: The response time specified is the interval between the input step function and the instant when the output crosses 1.4V.
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Typical Performance Characteristics Supply Current
80
TA=-55°C
IN - Input Current (nADC)
+
I -Supply Current (mA)
1.0
Input Current
TA=0°C
0.8 0.6
TA=25°C TA=+70°C
0.4
TA=+125°C
0.2
RL=∞ 0
10
20
30
60 TA=-55°C 40
TA=0°C
20
TA=+125°C
0
40
10
+
30
40
V - Supply Voltage (VDC)
Response Time for Various Input Overdrives–Positive Transition
Response Time for Various Input Overdrives–Negative Transition
6.0 5.0 4.0 3.0 2.0 1.0
6.0 5.0 4.0 3.0 2.0 1.0
Output Voltage Vo(V)
Input Over Drive =100 mV 5mV
20mV +5V DC
0
V IN
-
VO UT
0 -50 -100
+
TA=25°C
0
0.5
1.0
1.5
5.0mV= Input Over Drive +5V DC
20mV V IN
VO UT
+
100mV
0 -50 -100
TA=+25°C 0
2.0
0.5
Output Saturation Voltage
10 Out of Saturation VO – Saturation Voltage(VDC)
1.0
1.5
TIME(μsec)
TIME(μsec)
1.0 TA=+125°C 0.1
TA=-55°C TA=+25°C
0.01
0.001 0.01
0.1
1.0
10
IO - Output Sink Current (mA)
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51K
-
0
51K
Input Voltage VIN(mV)
Output Voltage Vo(V)
20
+
V -Supply Voltage (VDC)
Input Voltage VIN(mV)
TA=+25°C TA=+70°C
4
100
2.0
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Typical Application (VCC=5V) The GS393 dual comparators feature high gain, wide bandwidth characteristic. This gives the device oscillation tendencies if the outputs are capacitively coupled to the inputs via stray capacitance. This oscillation manifests itself during output transitions (VOL to VOH). To alleviate this situation, input resistors<10kΩ should be used. The addition of positive feedback (<10mV) is also recommended. It is good design practice to ground all unused pins. Differential input voltages may be larger than supply voltage without damaging the comparator’s input. Voltage is more negative than -0.3V should not be used.
Basic Comparator
Driving CMOS
VCC=5V
V
100k
3.0k
+VIN
1/2 GS393
GS393
VO
CD40XX
+VREF
Driving TTL
Square-Wave Oscillator
VCC=5v
VCC 4.3k 100k
VCC
75pF
10k
0
SN74LSxx
1 100kHz 1/2 GS393
VOUT
GS393
100k
100k
100k
SN74LSxx
Pulse Generator
Crystal Controlled Oscillator VCC
VCC
15k
200k R1=1M
100k
D1*
2.0k
*For large ratios of R1 / R2, D1 can be omitted
R2=100k
1N914
D2
80pF
0.1uF
1/2 GS393
1/2 GS393
VOUT 1M
1M
+15V
CRYSTAL 1M
6 s t0 t1
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20k
60 s t2
5
1 - 100 kHz
VOUT
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Typical Application (Continue) Two-Decade High-Frequency VCO
+Vcc 700k
500pF
100k
3.0k
5.1k
0.1uF
FREQUENCY CONTROL VOLTAGE INPUT
3k
1/2 GS393
10
VC
Vcc
1
0.01uF
1/2 GS393
OUTPUT1
2Vcc
20k 20k 50k 1
OUTPUT2
2Vcc
1/2 GS393
Non-Inverting Comparator with Hysteresis
Inverting Comparator with Hysteresis Vcc
Vcc
+VREF
+VIN
Vo
1/2 GS393
1M
Vcc
VO
1/2 GS393
10k
3k
+VIN
3k
1M
10M 1M
Output Strobing
And Gate
Vcc VCC
VCC 0
39k
"1"
"0"
6.2k
3k
+0.375V
Vo
1/2 GS393
1k 1/2 GS393
100k A
Q
STROBE INPUT
100k B
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1k 100k
Q or Logic Gate without Pull-Up resistor
C
6
f
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Typical Application (Continue) OR Gate
Large Fan-in AND Gate VCC
All diodes 1N914
VCC
VCC
VCC 0 "0"
200k
"1"
10k
0
3k
"0"
+0.075V f
1/2 GS393
100k
D3
C
A 100k B
3k
D4
D
1k
100k
"1"
D2
B
1k 100k
1/2 GS393
D1
A
C
VO
100k
Comparing Input Voltages of Opposite Polarity
Limit Comparator Vcc(12V)
2Rs
+VREF HI
Vcc
10k 2N2222
1/2 GS393
+VIN
Rs LAMP 12 ESB
+VIN
100k
-VIN
1/2 GS393
2N2222
1/2 GS393
2Rs
+VREF LOW
5.1k
100k
Zero Crossing Detector (Single Power Supply)
ORing the Outputs Vcc 3.0k
100k
100k
5.1k
VIN
1/2 GS393
5.1k
Vo
5.1k
1/2 GS393
1N914
Vo
1/2 GS393
20M
10k
One-Shot Multi-vibrator
Bi-Stable Multi-vibrator
Vcc
1M
100pF
100k
10k
0
15k 51k
+
Vo t0
1/2 GS393
1M
1N914
0.001uF
1ms PW t0
1M
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S
100k
R
100k
Vo
V+ 0 t1
1/2 GS393
S
R
1N914
7
+15V
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Typical Application (Continue) One-Shot Multi-vibrator with Input Lock Out
Zero Crossing Detector Vcc
1M
10M
100k +VIN
Vcc +
1M 560k
15k
1/2 GS393
100pF
100k
5.1k
Vo
+
1/2 GS393
VIN
1/2 GS393
10M
240k
62k
Vcc -
Comparator With a Negative Reference Vcc +
5.1k +
VIN
Vo
1/2 GS393
-5V Vcc -
Time Delay Generator Vcc
R1
R4
R3
R11
R14
R8 Vo3 1/2 GS393
Vcc R2 R5
R12
R15
R9
1/2 GS393
Vo2
C1
1/2 GS393
Vcc
R6
R13
R16
R10 Vo1 1/2 GS393
R7
R1=10k,R2=10k,R3=15k,R4=200k,R5=51k,R6=51k,R7=51k,R8=10k,R9=10k R10=10k,R11=10M,R12=10M,R13=10M,R14=3k,R15=3k,R16=3k,C1=0.001uF
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Vo
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Split-Supply Applications MOS CLOCK DRIVER +15V
R1 R2
R5
R6
R8
R10
R11
R3 A
1/2 GS393 MH0025
R7
1/2 GS393
B
R4
1/2 GS393
C
R9
-15V
R1=51k,R2=51k,R3=10k,R4=5.1k,R5=2k,R6=3.9k R7=8.2k,R8=2k,R9=6.8k,R10=2.4k,R11=2.4k C=50pF
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Package Dimension
SOP-8 PLASTIC PACKAGE D
θ1 E/2
E1/2 E1
θ2
R
E
θ1
PIN 1 MARKING e
R1
b
θ
GAUGE PLANE L2
h c
A A2 A1
Dimensions SYMBOL A A1 A2 b b1 c D E E1 e L L1 L2 R R1 h θ θ1 θ2
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Millimeters
Inches
MIN
MAX
MIN
MAX
1.35 0.10 1.25 0.31 0.28 0.17
1.75 0.25 1.65 0.51 0.48 0.25
.053 .004 .049 .012 .011 .007
.069 .010 .065 .020 .019 .010
4.90 (TYP) 6.00 (TYP) 3.90 (TYP) 1.27 (TYP) 0.40
.193 (TYP) .236 (TYP) .154 (TYP) .050 (TYP) 1.27
.016
1.04 (TYP) 0.25 (TYP) 0.07 0.07 0.25 0° 5° 0°
.050 .041 (TYP) .010 (TYP)
0.50 8° 15° -
10
.003 .003 .010 0° 5° 0°
.020 8° 15° -
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DIP-8 PLASTIC PACKAGE E G
1/2 e
PIN 1 MARKING
GAUGE PLANE
E1
c
b2 ec D
E
A2
A1 A
BASE PLANE SEATING PLANE
L D1
eA
b
1/2 LEAD 4 PLACES
e
eB
b3
Dimensions SYMBOL A A1 A2 b b2 b3 c D D1 E E1 e eA eB eC L G
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Millimeters
Inches
MIN
MAX
MIN
MAX
0.38 2.92 0.36 1.14 0.76 0.20 9.02 0.13 7.62 6.10
5.33 4.95 0.56 1.78 1.14 0.36 10.16 8.26 7.11
.015 .115 .014 .045 .030 .008 .355 .005 .300 .240
.210 .195 .022 .070 .045 .014 .400 .325 .280
2.54 (TYP) 7.62 (TYP) 0.00 2.92
.100 (TYP) .300 (TYP) 10.92 1.52 3.81
0.38 (TYP)
.000 .115
.430 .060 .150 .015 (TYP)
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NOTICE Information
furnished is believed to be accurate and reliable. However Globaltech Semiconductor assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Globaltech Semiconductor. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information without express written approval of Globaltech Semiconductor. (Revise Date:2007/11/13 Version_1.0)
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