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STMicroelectronics
STMicroelectronics

LM2901 Datasheet

LOW POWER QUAD VOLTAGE COMPARATORS


LM2901 Datasheet Preview


LM2901
Low-power quad voltage comparator
Features
Wide single supply voltage range or dual
supplies for all devices: +2 V to +36 V or ±1 V
to ±18 V
Very low supply current (1.1 mA) independent
of supply voltage (1.4 mW/comparator at +5 V)
Low input bias current: 25 nA typ.
Low input offset current: ±5 nA typ.
Input common-mode voltage range includes
negative rail
Low output saturation voltage:
250 mV typ. (IO = 4 mA)
Differential input voltage range equal to the
supply voltage
TTL, DTL, ECL, MOS, CMOS compatible
outputs
Description
This device consists of four independent precision
voltage comparators, which are 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 the negative rail even
though operated from a single power supply
voltage.
N
DIP14
(Plastic package)
D
SO-14
(Plastic micropackage)
P
TSSOP14
(Thin shrink small outline package)
Q4
QFN16 3x3
(Plastic micropackage)
February 2012
Doc ID 2468 Rev 7
1/17
www.st.com
17
Page 1

Pin connection and schematic diagram
1 Pin connection and schematic diagram
LM2901
Figure 1. Pin connections (top view)
Output 2 1
Output 1 2
VCC+ 3
Inverting input 1 4
Non-inverting input 1 5
Inverting input 2 6
Non-inverting input 2 7
14 O u tput 3
13 O u tput 4
12 VC C -
11 Non-inverting input 4
10 Inverting input 4
9 Non-inverting input 3
8 Inverting input 3
Figure 2. Schematic diagram
3.5 μA
VCC
100 μA
3.5 μ A
100 μA
2/17
Non-inverting
input
Inverting
input
Doc ID 2468 Rev 7
VO
VCC
Page 2

LM2901
Absolute maximum ratings and operating conditions
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol
Parameter
Value
Unit
VCC Supply voltage
Vid Differential input voltage
Vin Input voltage
Output short-circuit to ground (1)
±18 to 36
±36
-0.3 to +36
V
V
V
Rthja
Thermal resistance junction to ambient(2)
DIP14
SO-14
TSSOP14
QFN16 3x3
80
105 °C/W
100
45
Rthjc
Thermal resistance junction to case(2)
DIP14
SO-14
TSSOP14
QFN16 3x3
33
31
32
14
Tj
Tstg
ESD
Maximum junction temperature
Storage temperature range
HBM: human body model(3)
MM: machine model(4)
CDM: charged device model(5)
+150
-65 to +150
500
100
1500
°C
°C
V
V
V
1.
Short-circuits from the output to VCC+ can
maximum output current is approximately
cause excessive heating and eventual destruction.
20 mA, independent of the magnitude of VCC+.
The
2. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous short-
circuits on all amplifiers. All values are typical.
3. 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.
4. Machine model: a 200 pF 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.
5. 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.
Table 2. Operating conditions
Symbol
Parameter
Value
Unit
VCC
Vicm
Toper
Supply voltage
Common mode input voltage range
Tmin Tamb Tmax
Operating free-air temperature range
2 to 32
±1 to ±16
0 to (VCC+ -1.5)
0 to (VCC+ -2)
-40 to +125
V
V
°C
Doc ID 2468 Rev 7
3/17
Page 3
Part Number LM2901
Manufactur STMicroelectronics
Description LOW POWER QUAD VOLTAGE COMPARATORS
Total Page 17 Pages
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