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STMicroelectronics
STMicroelectronics

LM293 Datasheet

LOWPOWER DUAL VOLTAGE COMPARATORS


LM293 Datasheet Preview


LM193 - LM293
® LM393
LOW POWER DUAL VOLTAGE COMPARATORS
. WIDE SINGLE SUPPLY VOLTAGE RANGE OR
. DUAL SUPPLIES +2V TO +36V OR ±1V TO
±18V
VERY LOW SUPPLY CURRENT (0.4mA)
INDEPENDENT OF SUPPLY VOLTAGE
(1 mW/comparator at +5V)
. LOW INPUT BIAS CURRENT : 25nA TYP
. LOW INPUT OFFSET CURRENT : ±5nA TYP
. LOW INPUT OFFSET VOLTAGE : ±1mV TYP
. INPUT COMMON-MODE VOLTAGE RANGE
INCLUDES GROUND
. LOW OUTPUT SATURATION VOLTAGE :
250mV TYP. (IO = 4mA)
. DIFFERENTIAL INPUT VOLTAGE RANGE
EQUAL TO THE SUPPLY VOLTAGE
. TTL, DTL, ECL, MOS, CMOS COMPATIBLE
OUTPUTS
N
DIP8
(Plastic Package)
D
SO8
(Plastic Micropackage)
P
TSSOP8
(Thin Shrink Small Outline Package)
DE SC RI P TI O N
These devices consist 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 characteris-
tic in that the input common-mode voltage range
includes ground even thoughoperatedfrom a single
power supply voltage.
ORDER CODES
Part
Number
Temperature
Range
LM193
LM293
LM393
–55, +125oC
–40, +105oC
0, +70oC
Example : LM393D
Package
NDP
•••
•••
•••
PIN CONNECTIONS (top view)
1
2-
3+
4
8
7
-6
+5
1 - Output 1
2 - Inverting input 1
3 - Non-inverting input 1
4 - VCC-
5 - Non-inverting input 2
6 - Inverting input 2
7 - Output 2
8 - VCC+
June 1998
1/10
Page 1

LM193 - LM293 - LM393
SCHEMATIC DIAGRAM (1/2 LM193)
3.5µA
VCC
100µA 3.5µA
100µA
Non-inverting
Input
Inverting
Input
VCC
VCC
VO
VCC
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
LM193
LM293
LM393
Unit
VCC Supply Voltage
±18 or 36
±18 or 36
±18 or 36
V
Vid Differential Input Voltage
±36 ±36 ±36 V
Vi Input Voltage
Output Short-circuit to Ground – (note 1)
–0.3 to +36
–0.3 to +36
Infinite
–0.3 to +36
V
Ptot
Toper
Tstg
Power Dissipation
Operating Free-air TemperatureRange
Storage Temperature Range
–55 to +125
–65 to +150
830
–40 to +105
–65 to +150
0 to +70
–65 to +150
mW
oC
oC
Notes :
1.
Short-ci rcuit
from
the
output
to
VC
+
C
can
cause
excessi ve
heating and eventual
destruction. The maximum output
current is approximately 20mA, independent of the magnitude of VCC+.
2/10
Page 2

LM193 - LM293 - LM393
ELECTRICAL CHARACTERISTICS
VCC+ = +5V, VCC– = 0V, Tamb = 25oC (unless otherwise specified)
Symbol
Parameter
LM193 - LM293 - LM393
Min.
Typ.
Max.
Unit
Vio
Input Offset Voltage – (note 2)
Tamb = +25oC
Tmin. Tamb Tmax.
mV
15
9
Iib
Input Bias Current – (note 3)
Tamb = +25oC
Tmin. Tamb Tmax.
nA
25 250
400
Iio
Input Offset Current
Tamb = +25oC
Tmin. Tamb Tmax.
nA
5 50
150
Avd Large Signal Voltage Gain
VCC = 15V, RL = 15k, Vo = 1 to 11V
50 200
V/mV
ICC Supply Current (all comparators)
VCC = 5V, no load
VCC = 30V, no load
mA
0.4 1
1 2.5
Vicm
Input Common Mode Voltage Range - (note 4)
Tamb = +25oC
Tmin. Tamb Tmax.
Vid Differential Input Voltage - (note 6)
0
0
VVCCCC++-1-2.5
VCC+
V
V
Isink Output Sink Current
(Vid = -1V, VO = 1.5V)
6 16
mA
VOL Low Level Output Voltage
T(Vaimdb==-12V5o, CIsink = 4mA)
Tmin. Tamb Tmax
mV
250 400
700
IOH High Level Output Current
(TVaimdb==12V5,oVCCC = VO = 30V)
Tmin. Tamb Tmax
tre
Response Time
(RL = 5.1kto VCC+) – (note 5)
0.1 nA
1 µA
µs
1.3
trel
Large Signal Response Time
(Vi = TTL, Vref = +1.4 V, RL = 5.1kto VCC+)
ns
300
No tes :
2.
At output switch point,
(0V
to
V
+
CC
1.5V).
VO
1.4V,
RS
=
0
with
VC
+
C
fr om
5V
to
30V
and
over the full input
com mo n- mod e
range
3. The direct ion of the input current is out of the IC due to the PNP i nput stage. T his cur rent is essent ial ly const ant,
independent of the state of the output, so no loadi ng charge exists on the reference or input l ines.
4. The input common-mode volt age of either input si gnal vol tage shoul d not be all owed to go negat ive by more than
0.3V .
The upper end of the common-mode vol tage range is VCC+ –1.5V , but either or bot h inputs can go to +30V wi thout
damage.
5. The response ti me specifi ed is for a 100mV i nput step w it h 5mV overdr ive. For l arger over drive signal s 300ns
can be obtained.
6. Posit ive excursions of i nput voltage may exceed the power suppl y level. A s l ong as the other voltage remai ns
within the common-mode range the compar ator wil l 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).
3/10
Page 3

LM193 - LM293 - LM393
SUPPLY CURRENT versus
SUPPLY VOLTAGE
1
Tamb = -55°C
0.8 Tamb = 0°C
T = +25°C
0.6
Tamb = +70°C
0.4
Tamb = +125°C
0.2
RL =
0 10 20 30 40
SUPPLY VOLTAGE (V)
INPUT CURRENT versus
SUPPLY VOLTAGE
80
Vi = 0V
60 Ri = 109
Tamb = 0°C
Tamb = -55°C
40 Tamb= +25°C
20
Tamb = +125°C
Tamb = +70°C
0
10
20 30
40
SUPPLY VOLTAGE (V)
OUTPUT SATURATION VOLTAGE
versus OUTPUT CURRENT
10 1
10 0
10-1
10-2
10-3
10-2
Out of saturation
Tamb = +125°C
Tamb = -55°C
Tamb = +25°C
10 -1 10 0 10 1
OUTPUT SINK CURRENT (mA)
10 2
RESPONSE TIME FOR VARIOUS INPUT
OVERDRIVES - NEGATIVE TRANSITION
6
5
4
3
2
1
0
0
-50
-100
Input overdrive : 5mV
20mV
eI
100mV
5V
5.1k
eo
Tamb= +25°C
0 0.5 1 1.5 2
TIME (µs)
RESPONSE TIME FOR VARIOUS INPUT
OVERDRIVES - POSITIVE TRANSITION
6
5 Input overdrive : 100mV
4
3 5mV
2
1 20mV
0
100
50 Tamb= +25°C
5V
5. 1 k
eI
eo
0
0 0.5 1 1.5 2
TIME (µs)
4/10
Page 4
Part Number LM293
Manufactur STMicroelectronics
Description LOWPOWER DUAL VOLTAGE COMPARATORS
Total Page 10 Pages
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