NCS2220A
Low Voltage Comparator
The NCS2220A is an industry first sub−one volt, low power dual
comparator. This device consumes only 7.5
mA
per Comparator of
supply current. It is guaranteed to operate at a low voltage of 0.85 V
which allows it to be used in systems that require less than 1.0 V and is
fully operational up to 6.0 V which makes it convenient for use in both
3.0 V and 5.0 V systems. Additional features include no output phase
inversion with overdriven inputs, internal hysteresis, which allows for
clean output switching, and rail−to−rail input and output performance.
The NCS2220A is available in the tiny UDFN 1.6 X 1.6 package.
Features
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8
1
UDFN8 1.6 X 1.6
MU SUFFIX
CASE 517AC
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•
•
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Operating Voltage of 0.85 V to 6.0 V
Rail−to−Rail Input/Output Performance
Low Supply Current of 7.5
mA
per Comparator Typ
No Phase Inversion with Overdriven Input Signals
Internal Hysteresis
Propagation Delay of 0.5
ms
This is a Pb−Free Device
Single Cell NiCd/NiMH Battery Powered Applications
Cellular Telephones
Alarm and Security Systems
Personal Digital Assistants
MARKING DIAGRAM
1
CZ MG
G
CZ
M
G
= Specific Device Code
= Date Code
= Pb−Free Package
Typical Applications
(Note: Microdot may be in either location)
PIN CONNECTIONS
OUT1 1
IN−1 2
IN+1 3
V
EE
4
Top View
NOTE: The NCS2220A has three exposed pads on
the bottom side which may be used to reduce
thermal resistance by soldering to a copper heat−
spreader. Electrically the exposed pads must be
allowed to float.
8
7
6
5
V
CC
OUT2
IN−2
IN+2
ORDERING INFORMATION
Device
NCS2220AMUT1G
Package
Shipping
†
Complementary
3000/
UDFN 1.6 X 1.6 Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
©
Semiconductor Components Industries, LLC, 2009
October, 2009
−
Rev. 1
1
Publication Order Number:
NCS2220A/D
NCS2220A
MAXIMUM RATINGS
Rating
Supply Voltage Range (V
CC
to V
EE
)
Non−inverting/Inverting Input to V
EE
Operating Junction Temperature
Operating Ambient Temperature
Storage Temperature Range
Output Short Circuit Duration Time (Note 1)
ESD Tolerance (Note 2)
NCS2220A
Human Body Model
Machine Model
Thermal Resistance, Junction−to−Ambient
UDFN
Symbol
V
S
−
T
J
T
A
T
stg
t
S
−
2000
200
R
qJA
350
°C/W
Value
6.0
−0.2
to (V
CC
+ 0.2)
150
−40
to +105
−65
to +150
Indefinite
Unit
V
V
°C
°C
°C
s
V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. The maximum package power dissipation limit must not be exceeded.
TJ(max)
*
TA
PD
+
R
qJA
2. ESD data available upon request.
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2
NCS2220A
ELECTRICAL CHARACTERISTICS
(For all values V
CC
= 0.85 V to 6.0 V, V
EE
= 0 V, T
A
= 25°C, unless otherwise noted.) (Note 3)
Characteristics
Input Hysteresis T
A
= 25°C
Input Offset Voltage
V
CC
= 0.85 V
T
A
= 25°C
T
A
=
−40°C
to 105°C
V
CC
= 3.0 V
T
A
= 25°C
T
A
=
−40°C
to 105°C
V
CC
= 6.0 V
T
A
= 25°C
T
A
=
−40°C
to 105°C
Common Mode Voltage Range
Output Short−Circuit Sourcing or Sinking
Common Mode Rejection Ratio V
CM
= V
CC
Input Bias Current
Power Supply Rejection Ratio
DV
S
= 2.575 V
Supply Current per Comparator
V
CC
= 0.85 V
T
A
= 25°C
T
A
=
−40°C
to 105°C
V
CC
= 3.0 V
T
A
= 25°C
T
A
=
−40°C
to 105°C
V
CC
= 6.0 V
T
A
= 25°C
T
A
=
−40°C
to 105°C
Output Voltage High
V
CC
= 0.85 V, I
source
= 0.5 mA
T
A
= 25°C
T
A
=
−40°C
to 105°C
V
CC
= 3.0 V, I
source
= 3.0 mA
T
A
= 25°C
T
A
=
−40°C
to 105°C
V
CC
= 6.0 V, I
source
= 5.0 mA
T
A
= 25°C
T
A
=
−40°C
to 105°C
Output Voltage Low
V
CC
= 0.85 V, I
sink
= 0.5 mA
T
A
= 25°C
T
A
=
−40°C
to 105°C
V
CC
= 3.0 V, I
sink
= 3.0 mA
T
A
= 25°C
T
A
=
−40°C
to 105°C
V
CC
= 6.0 V, I
sink
= 5.0 mA
T
A
= 25°C
T
A
=
−40°C
to 105°C
Propagation Delay 20 mV Overdrive, C
L
= 15 pF
Symbol
V
HYS
V
IO
−10
−12
−6.0
−8.0
−5.0
−7.0
V
CM
I
SC
CMRR
I
IB
PSRR
I
CC
−
7.5
−
8.0
−
9.0
−
15
17
15
17
15
17
V
V
CC
−
0.25
V
CC
−
0.275
V
CC
−
0.3
V
CC
−
0.35
V
CC
−
0.3
V
CC
−
0.35
V
OL
−
V
EE
+ 0.10
−
V
EE
+ 0.12
−
V
EE
+ 0.12
−
0.5
0.5
20
16
V
EE
+ 0.25
V
EE
+ 0.275
V
EE
+ 0.3
V
EE
+ 0.35
V
EE
+ 0.3
V
EE
+ 0.35
−
−
−
−
ms
V
CC
−
0.12
−
V
CC
−
0.12
−
V
CC
−
0.17
−
−
−
−
53
−
45
0.5
−
0.5
−
0.5
−
V
EE
to V
CC
60
70
1.0
80
+10
+12
+6.0
+8.0
+5.0
+7.0
−
−
−
−
−
V
mA
dB
pA
dB
mA
Min
2.0
Typ
4.5
Max
20
Unit
mV
mV
−
−
V
OH
−
−
V
−
−
t
PHL
t
PLH
t
FALL
t
RISE
−
−
−
−
Output Fall Time V
CC
= 6.0 V, C
L
= 50 pF (Note 4)
Output Rise Time V
CC
= 6.0 V, C
L
= 50 pF (Note 4)
ns
ns
3. The limits over the extended temperature range are guaranteed by design only.
4. Input signal: 1 kHz, squarewave signal with 10 ns edge rate.
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3
NCS2220A
12
I
CC
, SUPPLY CURRENT (mA)
11
10
9.0
8.0
7.0
6.0
−50
V
CC
= 5.0 V
1000
I
CC
, SUPPLY CURRENT (mA)
T
A
= 25°C
100
V
CC
= 5.0 V
10
V
CC
= 2.7 V
−25
0
25
50
75
100
1.0
0.01
0.1
1.0
10
100
300
T
A
, AMBIENT TEMPERATURE (°C)
FREQUENCY (kHz)
Figure 1. NCS2220A Supply Current versus
Temperature/Comparator
Figure 2. NCS2220A Supply Current versus
Output Transition Frequency/Comparator
12
I
CC
, SUPPLY CURRENT (mA)
10
8.0
6.0
4.0
2.0
0
T
A
= 85°C
T
A
= 25°C
T
A
=
−40°C
0
1.0
2.0
3.0
4.0
5.0
1000
V
CC
−
V
OH
, OUTPUT VOLTAGE
HIGH STATE (mV)
V
CC
= 5.0 V
T
A
= 25°C
100
10
1.0
6.0
0.1
0.01
0.1
1.0
10
V
CC
, SUPPLY VOLTAGE (V)
I
source
, OUTPUT SOURCE CURRENT (mA)
Figure 3. NCS2220A Supply Current versus
Supply Voltage/Comparator
V
OL
, OUTPUT VOLTAGE LOW STATE (mV)
1000
V
CC
= 5.0 V
T
A
= 25°C
100
V
OL
, OUTPUT VOLTAGE LOW STATE (mV)
160
140
120
100
80
60
40
20
0
−100
Figure 4. NCS2220A Output Voltage
High State versus Output Source Current
V
CC
= 5.0 V
I
LOAD
= 4.0 mA
10
1.0
0.1
0.01
0.1
1.0
10
−50
0
50
100
150
I
sink
, OUTPUT SINK CURRENT, (mA)
T
A
, AMBIENT TEMPERATURE (°C)
Figure 5. NCS2220A Output Voltage
Low State versus Output Sink Current
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4
Figure 6. NCS2220A Output Voltage
Low State versus Temperature
NCS2220A
V
OH
, OUTPUT VOLTAGE HIGH STATE (mV)
4.95
1.0
PROPAGATION DELAY (ms)
0.8
0.6
0.4
0.2
4.94
4.93
4.92
4.91
4.90
4.89
4.88
−100
−50
0
50
V
CC
= 5.0 V
I
LOAD
= 4.0 mA
t
PLH
t
PHL
100
150
0
−50
V
CC
= 5.0 V
Input Overdrive = 50 mV
−25
0
25
50
75
100
T
A
, AMBIENT TEMPERATURE (°C)
T
A
, AMBIENT TEMPERATURE (°C)
Figure 7. NCS2220A Output Voltage
High State versus Temperature
Figure 8. NCS2220A Propagation Delay versus
Temperature
700
OUTPUT RESPONSE TIME (ns)
t
LH
PROPAGATION DELAY (ms)
600
500
400
300
200
100
0
0
T
A
= 25°C
Input Overdrive = 100 mV
1.0
2.0
3.0
4.0
5.0
6.0
t
HL
1.2
1.0
0.8
0.6
t
PLH
0.4
0.2
0
t
PHL
V
CC
= 2.7 V
T
A
= 25°C
0
50
100
150
200
V
CC
, SUPPLY VOLTAGE (V)
INPUT OVERDRIVE (mV)
Figure 9. NCS2220A Output Response Time
versus Supply Voltage
Figure 10. NCS2220A Propagation Delay
versus Input Overdrive
0.8
PROPAGATION DELAY (ms)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
50
100
150
200
t
PHL
t
PLH
V
CC
= 5.0 V
T
A
= 25°C
V
CC
2 V/Div
Output
Input Overdrive = 50 mV
10
ms/Div
INPUT OVERDRIVE (mV)
Figure 11. NCS2220A Propagation Delay
versus Input Overdrive
Figure 12. NCS2220A Powerup Delay
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