ST TS393 User Manual
Micropower dual CMOS voltage comparators
1
2
3
45
6
7
8
Inverting Input 2
Output 2
Non-inverting Input 2
Output 1
Inverting Input 1
Non-inverting Input 1
CC
+
V
-
CC
V
-
+
-
+
Features
■ Extremely low supply current: typically 9 µA per
comparator
■ Wide single supply range 2.7 V to 16 V or dual
supplies (±1.35 V to ±8 V)
■ Extremely low input bias current: 1 pA typical
■ Extremely low input offset current: 1 pA typical
■ Input common-mode voltage range includes
ground
■ High input impedance: 10
■ Fast response time: 2.5 µs typ. for 5 mV
overdrive
■ Pin-to-pin and functionally compatible with dual
bipolar LM393
Description
The TS393 is a micropower CMOS dual voltage
comparator with extremely low consumption of
9 µA typically per comparator (20 times less than
the dual bipolar LM393). Similar performance is
offered by the dual micropower comparator
TS3702 with a push-pull CMOS output.
12
Ω typ
TS393
N
DIP8
(Plastic package)
D
SO-8
(Plastic micropackage)
P
TSSOP8
(Thin shrink small outline package)
Pin connections
(top view)
Thus response times remain similar to the LM393.
April 2008 Rev 3 1/12
www.st.com
12
Absolute maximum ratings TS393
1 Absolute maximum ratings
Table 1. Absolute maximum ratings (AMR)
Symbol Parameter Value Unit
V
CC
V
V
V
I
I
T
R
thja
R
thjc
T
stg
ESD
+
Supply voltage
Differential input voltage
id
Input voltage
in
Output voltage 18 V
o
o
F
Output current 20 mA
Forward current in ESD protection diodes on inputs
Maximum junction temperature 150 °C
j
Thermal resistance junction to ambient
DIP8
SO-8
TSSOP8
Thermal resistance junction to case
DIP8
SO-8
TSSOP8
Storage temperature range -65 to +150 °C
HBM: human body model
MM: machine model
CDM: charged device model
(3)
(1)
(7)
(2)
(6)
(8)
(5)
(5)
(4)
18 V
±18 V
18 V
50 mA
85
125
°C/W
120
41
40
°C/W
37
500 V
200 V
1kV
1. All voltage values, except differential voltage, are with respect to network ground terminal.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3. Excursions of input voltages may exceed the power supply level. As long as the common mode voltage
[V
However, the maximum current through the ESD diodes (IF) of the input stage must strictly be observed.
4. Guaranteed by design.
5. Short-circuits can cause excessive heating and destructive dissipation. Values are typical.
6. Human body model: A 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
7. Machine model: A 200pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of
connected pin combinations while the other pins are floating.
8. Charged device model: all pins and the package are charged together to the specified voltage and then
discharged directly to the ground through only one pin. This is done for all pins.
icm
=(V
+
-
+ V
in
)/2] remains within the specified range, the comparator will provide a stable output state.
in
2/12
TS393 Absolute maximum ratings
Table 2. Operating conditions
Symbol Parameter Value Unit
Supply voltage
+
V
T
V
CC
icm
oper
TS393C, TS393I 2.7 to 16
Common mode input voltage range
T
≤ T
amb
≤ T
max
min
0 to V
0 to V
Operating free-air temperature range
TS393C
TS393I
0 to +70
-40 to +125
CC
CC
+
-1.5
+
- 2
V
V
°C
3/12
Schematic diagram TS393
2 Schematic diagram
Figure 1. Schematic diagram (for 1/2 TS393)
V+
CC
T
T
1
T
2
T
9
10
T
17
R
1
Input - Input +
TT
34
T
8
T
5
T
6
T
7
T
11
TT
14 15
T
12
T
13
T
16
V-
CC
T
18
Output
T
20
T
19
4/12
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