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LM2901 Datasheet

DUAL AND QUAD DIFFERENTIAL COMPARATORS

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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 are 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 operating 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.
Pin Assignments
(Top View)
1OUT
1IN-
1IN+
GND
1
2
3
4
-
1
8 VCC
7 2OUT
6 2IN-
2
- 5 2IN+
SO-8/TSSOP-8/MSOP-8
LM2903/ LM2903A
The dual devices are available in SO-8, TSSOP-8, MSOP-8 and the
quad devices available in SO-14 and TSSOP-14 with industry
standard pinouts. Both use green mold compound as standard.
(Top View)
1OUT 1
14 3OUT
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
2OUT 2
VCC 3
2IN- 4
2IN+ 5
1IN- 6
1IN+ 7
-
2
-
1
13 4OUT
12 GND
11 4IN+
4
- 10 4IN-
9 3IN+
3
- 8 3IN-
Low Input Bias Current: 25nA
Low Input Offset Current: ±5nA
Typical Offset Voltage:
Non-A Device: 2mV
A Device: 1mV
SO-14/TSSOP-14
LM2901/ LM2901A
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)
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for 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.
LM2901/ LM2901A/ LM2903/ LM2903A
Document number: DS36779 Rev. 3 - 2
1 of 18
www.diodes.com
May 2016
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

LM2901 Datasheet

DUAL AND QUAD DIFFERENTIAL COMPARATORS

No Preview Available !

Schematic Diagram
LM2901/ LM2901A/ LM2903/ LM2903A
V CC
+INPUT
-INPUT
Q2
Q1
Q5
Q3
Q4
Q6
OUTPUT
Q8
Q7
Functional Block Diagram of LM2901/2901A/2903/2903A
(Each Comparator)
Pin Descriptions
LM2901, LM2901A
Pin Name
1OUT
2OUT
VCC
2IN-
2IN+
1IN-
1IN+
3IN-
3IN+
4IN-
4IN+
GND
4OUT
3OUT
LM2903, LM2903A
1OUT
1IN-
1IN+
GND
2IN+
2IN-
2OUT
VCC
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
Function
Channel 1 Output
Channel 2 Output
Chip Supply Voltage
Channel 2 Inverting Input
Channel 2 Non-Inverting Input
Channel 1 Inverting Input
Channel 1 Non-Inverting Input
Channel 3 Inverting Input
Channel 3 Non-Inverting Input
Channel 4 Inverting Input
Channel 4 Non-Inverting Input
Ground
Channel 4 Output
Channel 3 Output
Channel 1 Output
Channel 1 Inverting Input
Channel 1 Non-Inverting Input
Ground
Channel 2 Non-Inverting Input
Channel 2 Inverting Input
Channel 2 Output
Chip Supply Voltage
LM2901/ LM2901A/ LM2903/ LM2903A
Document number: DS36779 Rev. 3 - 2
2 of 18
www.diodes.com
May 2016
© Diodes Incorporated


Part Number LM2901
Description DUAL AND QUAD DIFFERENTIAL COMPARATORS
Maker Diodes
Total Page 18 Pages
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