LM2903H
LOW POWER DUAL VOLTAGE COMPARATORS
s
WIDE SINGLE SUPPLY VOLTAGE RANGE
OR DUAL SUPPLIES +2V TO +36V OR ±1V
TO ±18V
s
VERY LOW SUPPLY CURRENT (0.4mA)
INDEPENDENT OF SUPPLY VOLTAGE
(1mW/comparator at +5V)
s
LOW INPUT BIAS CURRENT: 25nA TYP
s
LOW INPUT OFFSET CURRENT: ±5nA TYP
s
INPUT COMMON-MODE VOLTAGE RANGE
INCLUDES GROUND
D
SO-8
(Plastic Micropackage)
s
LOW OUTPUT SATURATION VOLTAGE:
250mV TYP. (I
O
= 4mA)
s
DIFFERENTIAL INPUT VOLTAGE RANGE
EQUAL TO THE SUPPLY VOLTAGE
s
TTL, DTL, ECL, MOS, CMOS COMPATIBLE
OUTPUTS
DESCRIPTION
This device consists of two independent low
power voltage comparators designed specifically
to operate from a single supply over a wide range
of voltages. Operation from split power supplies is
also possible.
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.
ORDER CODE
Part Number
JLM2903H- E6D1
LM2903HD
Temperature
Range
-40°C, +150°C
-40°C, +150°C
Package
Wafer
•
•
SO8
Wafer form
PIN CONNECTIONS
(top view)
1
2
3
4
-
+
-
+
8
7
6
5
D =
Small Outline Package (SO) - also available in Tape & Reel (DT)
September 2003
.
1/5
LM2903H
SCHEMATIC DIAGRAM
(1/2 LM2903)
VCC+
3.5µA
100µA
3.5µA
100µA
Non-Inverting
Input
Vo
VCC-
Inverting
Input
VCC-
VCC-
PAD LOCATIONS
Name
OUT 2
Pad placement
Pad dimensions
year
E- (2)
E+ (2)
X
GND
E+1
E-1
830
750
400
100
65
90
410
760
Y
415
100
100
100
415
730
720
720
X
90
90
90
90
90
90
90
90
Y
90
90
90
90
90
90
90
90
Vcc +
GND
OUT1
Vcc +
OUT2
y
OUT 1
Die id.
E- (1)
E+ (1)
E-2
E+2
x
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
ID
V
I
P
d
T
stg
1.
2.
All dimensions are specified in micrometer (um).
Parameter
Supply Voltage
Differential Input Voltage
Input Voltage
Output Short-circuit to Ground
1)
Power Dissipation at T
AMB
=+25°C
2)
Storage Temperature Range
Value
±18 or 36
±36
-0.3 to +36
20
710
-65 to +150
Unit
V
V
V
mA
mW
°C
Short-circuit from the output to V
cc+
can
independent of the magnitude of V
cc +
cause excessive heating and eventual destruction. The maximum output current is approximately 20mA,
Pd is calculated with T
amb
= +25°C, T
Junction
= +150°C and R
thja
= 175°C/W for SO8 package
2/5
LM2903H
OPERATING CONDITIONS
Symbol
V
CC+
T
oper
Supply Voltage
Operating Free-Air Temperature Range
Parameter
Value
2 to 36
-40 to +150
Unit
V
°C
ELECTRICAL CHARACTERISTICS
V
CC+
= 5V, V
cc-
= GND, T
amb
= 25°C (unless otherwise specified)
Symbol
V
IO
Input Offset Voltage
1)
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
.
Input Offset Current
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max.
Input Bias Current
2)
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max.
Large Signal Voltage Gain (V
cc
= 15V,R
L
=15kΩ, V
o
=1 to 11V)
Supply Current (all comparators)
V
CC
= 5V, no load
V
CC
= 30V, no load
Input Common Mode Voltage Range (V
cc
= 30V)
3)
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max.
Differential Input Voltage
4)
Low Level Output Voltage (V
id
= -1V, I
sink
= 4mA)
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
High Level Output Current (V
CC
=V
o
=30V, V
id
= 1V)
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Output Sink Current (V
id
= -1V,V
o
= 1.5V)
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Small Signal Response Time
5)
(R
L
= 5.1kΩ to V
CC
+
)
Large Signal Response Time
6)
TTL Input (V
ref
= +1.4 V, R
L
=5.1kΩ to V
CC+
)
Output Signal at 50% of final value
Output Signal at 95% of final value
6
2
25
Parameter
Min.
Typ.
1
Max.
7
15
50
150
250
400
Unit
mV
I
IO
5
nA
I
IB
A
VD
I
CC
25
200
0.4
1
0
0
nA
V/mV
1
2.5
V
CC+
-1.5
V
CC+
-2
V
CC+
mA
V
ICM
V
ID
V
OL
V
V
mV
250
400
800
I
OH
0.1
1
16
1.3
nA
µA
mΑ
µs
I
SINK
t
RE
t
REL
500
1
ns
µs
1.
2.
3.
4.
At output switch point, V
O
≈
1.4V, R
S
= 0Ω with V
CC
+
from 5V to 30V, and over the full input common-mode range (0V to V
CC
+
–1.5V).
The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the
output, so no loading charge exists on the reference of input lines
The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the
common-mode voltage range is V
CC
+
–1.5V, but either or both inputs can go to +30V without damage.
Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the
comparator will provide a proper output state.
The low input voltage state must not be less than –0.3V (or 0.3V below the negative power supply, if used)
The response time specified is for a 100mV input step with 5mV overdrive.
Maximum values are guaranteed by design & evaluation.
5.
6.
3/5
LM2903H
SUPPLY CURRENT versus SUPPLY VOLTAGE
RESPONSE TIME FOR VARIOUS INPUT
OVERDRIVES - NEGATIVE TRANSITION
OUTPUT VOLTAGE (V)
1.0
SUPPLY CURRENT (mA)
0.8
T
AMB
= - 40 °C
T
AMB
= + 25 °C
0.6
0.2
INPUT VOLTAGE (mV)
0.4
T
AMB
= + 125 °C
T
AM B
= + 150 °C
6
5
4
3
2
1
0
0
-50
-100
Input overdrive : 5mV
20mV
100mV
e
I
5V
5.1k
W
e
o
T
amb
= +25°C
0
0.5
1
1.5
TIME (m s)
2
0.0
0
10
20
SUPPLY VOLTAGE (V)
30
40
INPUT CURRENT versus SUPPLY VOLTAGE
RESPONSE TIME FOR VARIOUS INPUT
OVERDRIVES - POSITIVE TRANSITION
INPUT BIAS CURRENT (nA)
OUTPUT VOLTAGE (V)
50
40
T
AMB
= - 40 °C
30
20
T
AMB
= + 25 °C
T
AMB
= + 150 °C
INPUT VOLTAGE (mV)
10
T
AMB
= + 125 °C
6
Input overdrive : 100mV
5
4
5mV
3
2
20mV
1
0
100
T
amb
= +25°C
50
0
0
0.5
1
1.5
TIME (
m
s)
5V
5.1k
W
e
I
e
o
0
0
10
20
SUPPLY VOLTAGE (V)
30
40
2
OUTPUT SATURATION VOLTAGE versus
OUTPUT CURRENT (Vcc=5V)
10
OUTPUT SATURATION VOLTAGE (V)
1
T
AMB
= + 150 °C
T
AMB
= + 125 °C
0.1
T
AMB
= + 25 °C
T
AMB
= - 40 °C
0.01
0.1
1
10
100
OUTPUT SINK CURRENT (mA)
4/5
LM2903H
PACKAGE MECHANICAL DATA
SO-8 MECHANICAL DATA
DIM.
A
A1
A2
B
C
D
E
e
H
h
L
k
ddd
0.1
5.80
0.25
0.40
mm.
MIN.
1.35
0.10
1.10
0.33
0.19
4.80
3.80
1.27
6.20
0.50
1.27
8˚ (max.)
0.04
0.228
0.010
0.016
TYP
MAX.
1.75
0.25
1.65
0.51
0.25
5.00
4.00
MIN.
0.053
0.04
0.043
0.013
0.007
0.189
0.150
0.050
0.244
0.020
0.050
inch
TYP.
MAX.
0.069
0.010
0.065
0.020
0.010
0.197
0.157
0016023/C
Information furnished is believed to be accurate and reliable. However, STMicroelectronics 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 STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
All other names are the property of their respective owners.
© 2003 STMicroelectronics - All Rights Reserved
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