Diodes LM2901/ LM2901A/ LM2903/ LM2903A User Manual
Description, Features, Pin assignments
LM2901/ LM2901A/ LM2903/ LM2903A
Document number: DS36779 Rev. 1 - 2
1 of 15
March 2014
© Diodes Incorporated
LM2901/ LM2901A/ LM2903/ LM2903A
DUAL AND QUAD DIFFERENTIAL COMPARATORS
Description
The LM2901/2903 series comparators consist of four and two
independent precision voltage comparators with very low input offset
voltage specification. They have been designed to operate from a
single power supply over a wide range of voltages; however operation
from split power supplies is also possible. They offer low power
supply current independent of the magnitude of the power supply
voltage.
The LM2901/2903 series comparators are designed to directly
interface with TTL and CMOS. When operate from both plus and
minus power supplies, the LM2901/2903 series comparators will
directly interface with MOS logic where their low power drain is a
distinct advantage over standard comparators.
The dual devices are available in SO-8 and the quad devices
available in SO-14 and TSSOP-14 with industry standard pinouts.
Both use green mold compound as standard.
Features
Wide power supply range:
Single supply: 2V to 36V
Dual supplies: ±1.0V to ±18V
Very low supply current drain– independent of supply voltage
LM2903:
0.6mA
LM2901:
0.9mA
Low input bias current: 25nA
Low input offset current: ±5nA
Typical offset voltage:
Non-A device: 2mV
A device: 1mV
Common-mode input voltage range includes ground
Differential input voltage range equal to the power supply voltage
Low output saturation voltage:
LM2903: 200mV at 4mA
LM2901: 100mV at 4mA
Output voltage compatible with TTL, MOS and CMOS
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
(Top View)
1
2
3
7
6
5
4
8
SO-8
1OUT
V
CC
2IN-
2IN+
1IN-
1IN+
GND
2OUT
1
+
-
+
-
2
LM2903/ LM2903A
(Top View)
1
2
3
13
12
11
4
14
SO-14/TSSOP-14
1OUT
3OUT
GND
7
6
5
9
10
8
4IN+
3IN-
3IN+
4IN-
2OUT
V
CC
2IN-
2IN+
1IN-
1IN+
4OUT
2
+
-
1
+
-
+
-
4
+
-
3
LM2901/ LM2901A
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. S more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.