Document
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.
The dual devices are available in SO-8, TSSOP-8, and MSOP-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)
1OUT 1IN1IN+ GND
1 2 3 4
-
1
+ +
8 VCC
7 2OUT
- 6 2IN-
2
5 2IN+
SO-8/TSSOP-8/MSOP-8
LM2903/ LM2903A
(Top View)
1OUT 1 2OUT 2
VCC 3 2IN- 4 2IN+ 5
1IN- 6 1IN+ 7
-
2
-
1
++ ++
14 3OUT
13 4OUT
12 GND
11 4IN+
4
- 10 4IN-
9 3IN+
3
- 8 3IN-
SO-14/TSSOP-14
LM2901/ LM2901A
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ 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 4 - 2
1 of 18 www.diodes.com
September 2018
© Diodes Incorporated
Schematic Diagram
LM2901/ LM2901A/ LM2903/ LM2903A
V CC
+INPUT
-INPUT
Pin Descriptions
LM2901, LM2901A Pin Name 1OUT 2OUT VCC 2IN2IN+ 1IN1IN+ 3IN3IN+ 4IN4IN+ GND 4OUT 3OUT
LM2903, LM2903A 1OUT 1IN1IN+ GND 2IN+ 2IN2OUT VCC
Q2 Q1
Q3 Q4
Q5 Q6
OUTPUT Q8
Q7
Functional Block Diagram of LM2901/2901A/2903/2903A (Each Comparator)
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 4 - 2
2 of 18 www.diodes.com
September 2018
© Diodes Incorporated
LM2901/ LM2901A/ LM2903/ LM2903A
Absolute Maximum Ratings (Note 4) (@TA = +25°C, unless otherwise specified.)
Symbol VCC VID VIN IIN VO IO —
θJA
θJC
TA TJ TST TLEAD ESD
Parameter
Supply Voltage
Differential Input Voltage
Input Voltage
Input Current (VIN < -0.3V) Output Voltage
Output Current
Duration of Output Short Circuit to Ground (Note 5)
SO-8
Package Thermal Impedance (Note 6)
MSOP-8 TSSOP-8 SO-14
TSSOP-14
SO-8
Package Thermal Impedance (Note 6)
MSOP-8 TSSOP-8 SO-14 TSSOP-14
Operating Temperature Range
Operating Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 seconds)
Human Body Mode ESD Protection (Note 7)
Machine Mode ESD Protection
Rating 36 36
-0.3 to +36 50 36 20
Unlimited 110 160 185 100 129 8.5 25 17 16 6.3
-40 to +125 150
-65 to +150 260 500 100
Unit V V V mA V mA —
°C/W
°C/W
°C °C °C °C V
Notes:
4. Stresses beyond those listed under Absolute Maximum Ratings can cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods can affect device reliability.
5. Short circuits from outputs to VCC can cause excessive heating and eventual destruction.
6. Maximum power diss.