Diodes LM2901, LM2901A, LM2903, LM2903A User Manual

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)

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. 1 - 2

Pin Assignments

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1OUT

1IN-

1IN+

GND

1OUT

2OUT

VCC

2IN-

2IN+

1IN-

1IN+

(Top View)

1 2

SO-8

LM2903/ LM2903A

(Top View)

1 2

SO-14/TSSOP-14

LM2901/ LM2901A

VCC

2OUT

2IN-

2IN+

3OUT

4OUT

GND

4IN+

4IN-

3IN+

3IN-

March 2014

Schematic Diagram

LM2901/ LM2901A/ LM2903/ LM2903A

Functional Block Diagram of LM2901/2901A/2903/2903A

Pin Descriptions

LM2901, LM2901A

Pin Name Pin # Function

1OUT 1 Channel 1 Output

2OUT 2 Channel 2 Output

VCC 3 Chip Supply Voltage

2IN- 4 Channel 2 Inverting Input

2IN+ 5 Channel 2 Non-inverting Input

1IN- 6 Channel 1 Inverting Input

1IN+ 7 Channel 1 Non-inverting Input

3IN- 8 Channel 3 Inverting Input

3IN+ 9 Channel 3 Non-inverting Input

4IN- 10 Channel 4 Inverting Input

4IN+ 11 Channel 4 Non-inverting Input

GND 12 Ground

4OUT 13 Channel 4 Output

3OUT 14 Channel 3 Output

LM2903, LM2903A

1OUT 1 Channel 1 Output

1IN- 2 Channel 1 Inverting Input

1IN+ 3 Channel 1 Non-inverting Input

GND 4 Ground

2IN+ 5 Channel 2 Non-inverting Input

2IN- 6 Channel 2 Inverting Input

2OUT 7 Channel 2 Output

VCC 8 Chip Supply Voltage

LM2901/ LM2901A/ LM2903/ LM2903A

Document number: DS36779 Rev. 1 - 2

(Each Comparator)

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LM2901/ LM2901A/ LM2903/ LM2903A

Absolute Maximum Ratings (Note 4) (@T

= +25°C, unless otherwise specified.)

Symbol Parameter Rating Unit

VCC

VID

VIN

IIN Input Current (V

Supply Voltage 36 V

Differential Input Voltage 36 V

Input Voltage -0.3 to +36 V

< -0.3V)

50 mA

Output Voltage 36 V

Output Current 20 mA

— Duration of Output Short Circuit to Ground (Note 5) Unlimited —

θJA

θJC

TST

LEAD

ESD

Notes: 4. Stresses beyond those listed under absolute maximum ratings may 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 may affect device reliability.

5. Short circuits from outputs to V

6. Maximum power dissipation is a function of T P

7. Human body model, 1.5kΩ in series with 100pF.

Package Thermal Impedance (Note 6)

Operating Temperature Range -40 to +125 °C

Operating Junction Temperature 150 °C

Storage Temperature Range -65 to +150 °C

Lead Temperature (Soldering, 10 seconds) 260 °C

Human Body Mode ESD Protection (Note 7) 500

Machine Mode ESD Protection 100

can cause excessive heating and eventual destruction.

= (T

− TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.

J(MAX)

SO-8 TBD

SO-14 TBD

°C/W

TSSOP-14 TBD

SO-8 TBD

SO-14 TBD

°C/W

TSSOP-14 TBD

, θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is

J(MAX)

LM2901/ LM2901A/ LM2903/ LM2903A

Document number: DS36779 Rev. 1 - 2

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LM2901/ LM2901A/ LM2903/ LM2903A

Electrical Characteristics (Notes 8 & 9) (@V

=5.0V, GND=0V, TA = +25°C, unless otherwise specified.)

LM2901, LM2901A

Parameter Conditions TA Min Typ Max Unit

= +25°C

= V

Input Offset Voltage

VIO

(Note 10)

Input Bias Current

Input Offset Current

IIO

Input Common-Mode

CMR

Voltage Range

Supply Current

ICC

(Four Comparators)

Voltage Gain

— Large Signal Response time

— Response time

O(SINK)

O(LEAK)

Notes: 8. Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary over time and

10. V

Output sink current

Saturation voltage

SAT

Output leakage current

Differential input voltage

VID

will also depend on the application and configuration. The typical values are not tested and are not guaranteed on shipped production material.

9. All limits are guaranteed by testing or statistical analysis. Limits over the full temperature are guaranteed by design, but not tested in production.

 1.4V, R

11. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output so no loading change exists on the input lines.

12. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V (@ +25°C). The upper end of the common-mode voltage range is V

13. The response time specified is for a 100mV step input with 5mV overdrive. For larger overdrive signals 300ns can be obtained, see typical performance characteristics.

14. Positive excursions of input voltage may exceed the power supply level. As long as other voltages remain within the common mode range, the comparator will provide a proper output stage. The low voltage state must not be less than -0.3V (or 0.3V below the magnitude of the negative power supply, if used).

= 0Ω with VCC from 5V to 30V;

IN+

VCC = 30V (Note 12)

quad channels

IN−

All VIN ≥0V (or V- if used) (Note 14)

min,

CMR

= 1.4V,

= 5V to 30V

or I

with OUT in linear range,

IN−

Non-A Device

A-Suffix Device

= 0V (Note 11)

- I

, V

= 0V

IN−

= 30V

= ∞ on

VCC = 5V

= 15V, V

= 1V to 11V,

OUT

≥ 15kΩ,

= TTL logic swing, V

REF

= 1.4V,

= 5V, RL = 5.1kΩ

= 5V, RL = 5.1kΩ (Note 13) TA = +25°C

= 1V, V

= 0V, V

-1.5V (@ +25°C), but either or both inputs can go to +36V without damage, independent of the magnitude of VCC.

= 0, VO ≤ 1.5V TA = +25°C

IN+

= 0, I

IN+

= 1, VO = 5V TA = +25°C

IN+

= 1, VO = 30V

IN+

SINK

≤ 4mA

Full range — — 15

= +25°C

Full range — — 4

= +25°C

Full range — — 500

= +25°C

Full range — — 200

= +25°C

Full range

= +25°C

Full range — — 3.5

= +25°C

Full range — — 3.0

= +25°C

Full range — — 700

Full range

— 2 7

— 1 2

— 25 250

— 5 50

0 to

—

-1.5

-2

— —

1.2 2.5

0.9 2

50 200 — V/mV

— 300 — ns

— 1.3

6 16

—

100 400

0.1 — nA

— —

—

µs

1 µA

36 V

LM2901/ LM2901A/ LM2903/ LM2903A

Document number: DS36779 Rev. 1 - 2

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March 2014

LM2901/ LM2901A/ LM2903/ LM2903A

Electrical Characteristics (Notes 8 & 9) (@V

=5.0V, GND=0V, TA = +25°C, unless otherwise specified.)

LM2903, LM2903A

Parameter Conditions TA Min Typ Max Unit

= +25°C

= V

Input Offset Voltage

VIO

(Note 10)

Input Bias Current

Input Offset Current

IIO

Input Common-Mode Voltage

CMR

Range

Supply Current

ICC

Voltage Gain

— Large Signal Response time

— Response time

O(SINK)

O(LEAK)

Notes: 8. Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary over time and

10. V

Output sink current

Saturation voltage

SAT

Output leakage current

Differential input voltage

VID

will also depend on the application and configuration. The typical values are not tested and are not guaranteed on shipped production material.

9. All limits are guaranteed by testing or statistical analysis. Limits over the full temperature are guaranteed by design, but not tested in production.

 1.4V, R

11. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the

output so no loading change exists on the input lines.

12. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V (@ +25°C). The upper end of

the common-mode voltage range is V

13. The response time specified is for a 100mV step input with 5mV overdrive. For larger overdrive signals 300ns can be obtained, see typical

performance characteristics.

= 0Ω with VCC from 5V to 30V;

IN+

VCC= 30V (Note 12)

both channels

IN−

All VIN ≥0V (or V- if used) (Note 14)

min,

CMR

= 1.4V,

= 5V to =30V

or I

with OUT in linear range,

IN−

Non-A Device

A-Suffix Device

= 0V (Note 11)

- I

, V

= 0V

IN−

= 30V

= ∞ on

= 15V, V

= 1V to 11V,

OUT

= 5V

≥ 15kΩ,

= TTL logic swing, V

REF

= 1.4V,

= 5V, RL = 5.1kΩ

= 5V, RL = 5.1kΩ (Note 13) TA = +25°C

= 1V, V

= 0V, V

-1.5V (@ +25°C), but either or both inputs can go to +36V without damage, independent of the magnitude of VCC.

= 0, VO ≤ 1.5V TA = +25°C

IN+

= 0, I

IN+

= 1, VO = 5V TA = +25°C

IN+

= 1, VO = 30V

IN+

SINK

≤ 4mA

Full range — — 15

= +25°C

Full range — — 4

= +25°C

Full range — — 500

= +25°C

Full range — — 200

= +25°C

Full range

= +25°C

Full range — — 3.0

= +25°C

Full range — — 2.0

= +25°C

Full range — — 700

Full range — — 1 µA

Full range — — 36 V

— 2 7

— 1 2

— 25 250

— 5 50

0 to

-1.5

-2

— —

— 0.7 1.7

— 0.6 1

50 200 — V/mV

— 300 — ns

— 1.3 — µs

6 16 — mA

— 200 400

— 0.1 — nA

LM2901/ LM2901A/ LM2903/ LM2903A

Document number: DS36779 Rev. 1 - 2

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