SGS Thomson Microelectronics LM2901N, LM2901D, LM2901 Datasheet



LOWPOWER QUAD VOLTAGE COMPARATORS

.WIDESINGLESUPPLYVOLTAGERANGEOR

DUAL SUPPLIES FOR ALL DEVICES: +2V TO +36V OR ±1V TO ±18V

.VERYLOWSUPPLYCURRENT(1.1mA) IN-

DEPENDENT OF SUPPLY VOLTAGE (1.4mW/comparatorat +5V)

.LOW INPUT BIAS CURRENT: 25nA TYP

.LOW INPUT OFFSET CURRENT : ±5nA TYP

.INPUT COMMON-MODE VOLTAGE RANGE

INCLUDES GROUND

.LOW OUTPUT SATURATION VOLTAGE :

250mV TYP. (IO= 4mA)

.DIFFERENTIAL INPUT VOLTAGE RANGE

EQUALTO THE SUPPLY VOLTAGE

.TTL, DTL, ECL, MOS, CMOS COMPATIBLE

OUTPUTS

N

DIP14

(PlasticPackage)

LM2901

D

SO14

(PlasticMicropackage)

DESCRI PT ION

This device consists of four independent precision voltage comparators. All these comparators were designedspecificallytooperatefroma singlepower supply over a wide range of voltages. Operation fromsplit power supplies is also possible.

These comparators also have a unique characteris-tic in that the input common-mode voltage range includes ground even though operated froma singlepower supply voltage.

PIN CONNECTIONS (top view)

Output 2

Output 1

Inverting input 1

Non-inve rting input 1

Inverting input 2

Non-inve rting input 2

1

2

V

+

3

CC

4

5

6

7

TSSOP14

(Thin Shrink Small OutlinePackage)

ORDER CODES

Part

Number

LM2901 -40, +125 Example : LM2901D

14

Output 3

13

Output 4

12

V

CC

11

Non-inve rting input 4

10

Inverting input 4

9

Non-inve rting input 3

8

Inverting input 3

Temperature

Range

-

P

Package

o

C

NDP

•••

December1999

1/10

LM2901

SCHEMA TI C DIAGRAM ( 1/4 LM2901)

V

CC

Non-inverting

Input

Inverting

Input

µ

A 100µA3.5

3.5

µ

A 100µA

V

O

CC

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter LM2901 Unit

V

P

T

oper

T

Notes : 1. Short-circuit f rom the output t o V

2/10

Supply Voltage

CC

Differential Input Voltage

id

Input Voltage -0.3 to +36 V

I

Output Short-circuit to Ground - note 1 Power Dissipation 570 mW

tot

Operating Free-air Temperature Range -40, +125 Storage Temperature Range -65, +150

stg

output current is approximately 20mA, i ndependent of the magnitude of V

+

can cause excessive heating and eventual destruction. The maximum

CC

+

.

±18 to 36

±36

V V

o

C

o

C

LM2901

ELECTRICAL CHARACTERISTICS

+

V

= +5V, V

CC

Symbol Parameter Min. Typ. Max. Unit

V

io

I

io

I

ib

A

vd

I

CC

V

icm

V

id

V

OL

I

OH

I

sink

t

re

t

rel

Notes : 2.

At output sw itch point, VO≈ 1.4V , RS=0withV range (0V to V

3. T he direction of the i nput current i s out of the IC due to the PNP i nput stage. This current is essentially constant, independent of the state of the output, so no loading charge exists on the reference of i nput lines.

4. T he input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of t he common-mode volt age range is V can go to +30V without damage.

5. T he response time specifi ed is for a 100mV input step wi th 5mV overdrive.

6. P ositi ve excursions of i nput voltage may exceed the power supply level. As long as the other v oltage remains within the common-mode range, the comparator wi l l provide a proper output state. The low i nput voltage state m ust not be less than –0.3V (or 0.3V bellow t he negative power supply, if used).

7. M aximum values are guaranteed by design.

-

= GND, T

CC

=25oC (unless otherwise specified)

amb

Input Offset Voltage - note 2

T T

amb min.

= +25oC ≤ T

amb

≤ T

max.

17

Input Offset Current

T

= +25oC

amb

T

≤ T

amb

≤ T

min.

Input Bias Current (I

T

= +25oC

amb

≤ T

T

min.

amb

≤ T

max.

+

I

max.

or I

–

) - note 3

I

550

25 250

Large Signal Voltage Gain

= 15V, RL=15kΩ,VO= 1 to 11V)

(V

CC

25 200

Supply Current (all comparators)

V

= +5V, no load

CC

V

= +30V, no load

CC

1.1

1.3

Input Common Mode Voltage Range (VCC= 30V) - note 4

T T

amb min

= +25oC

. ≤ T

amb

≤ T

max.

0 0

V

V Differential Input Voltage - note 6 V Low Level Output Voltage

(V T T

id amb min.

= -1V, I

= +25oC ≤ T

amb

sink

≤ T

= 4mA)

250 400

max.

High Level Output Current

(V

CC=VO

T

amb

T

min

= 30V, Vid= 1V)

= +25oC

. ≤ T

amb

≤ T

0.1

max.

Output Sink Current

(V

= -1V, VO= 1.5V) 6 16

id

Small Signal Response Time - (note 5)

= 5.1kΩ connected to V

(R

L

Large Signal Response Time - (note 7)

TTL Input (V Output Signal at 50% of final value

= +1.4 V, RL= 5.1kΩ to V

ref

CC

+

)

+

)

CC

1.3

Output Signal at 95% of final value

+

from 5Vt o 30V, and over the full input common-mode

CC

+

–1.5V).

CC

+

–1.5V, but eit her or both inputs

CC

15

150

400

2.5

CC

700

500

2

+

1

-1.5

+

-2

mV

nA

V/mV

mA

V

mV

nA µA

mA

µs

ns µs

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