ST LM119, LM219, LM319 User Manual

Features

■ Two independent comparators

■ Supply voltage: +5V to ±15V

■ Typically 80ns response time at ±15V

■ Minimum fan-out of 2 each side

■ Maximum input current of 1µa over operating

temperature range

■ Inputs and outputs can be isolated from system

ground

■ High common-mode slew rate

LM119-LM219-LM319

High speed dual comparators

DIP14

(Plastic package)

Description

These products are precision high speed dual comparators designed to operate over a wide range of supply voltages do wn to a single 5V logic supply and ground. They feature low input currents and high gains.

The open collector of the output stage makes it compatible with TTL as well as capable of driving lamps and relays at currents up to 25mA.

Although designed primarily for applications requiring operation from digital logic supplies, the comparators are fully specified f or po wer supplies up to ±15V.

They feat ure faster response than LM111 at the expense of higher current consumption. Howe v er, the high speed, wide operating v oltag e ran ge and low package count make the LM119/219/319 much more versatile.

N.C.

Ground 1

Non-inverting input 1

Inverting input 1

V

CC

Output 2

SO-14

(Plastic micropackage)

Pin connections

(Top view)

1

2

3

4

5

-

6

7

14

13

12

11

10

9

8

N.C.

Output 1

+

V

CC

Inverting input 2

Non-inverting input 2

Ground 2

January 2008 Rev 2 1/12

www.st.com

12

Schematic diagram LM119-LM219-LM319

1 Schematic diagram

Figure 1. Circuit schematics (1/2 LM119)

R1

R2

4kΩ

R3

4kΩ

3.5kΩ

R6

3kΩ

R7

3kΩ

Q9

+

V

CC

Inverting

Input

Non-inverting

Input

Q4

Q3

Q7

Q6

c1

18 Fμ

Q1

Q22

Q2

R4

3kΩ

600Ω

R25

R24

250Ω

Q6

Q21

R5

3kΩ

R23 4kΩ

Q20

R8

2kΩ

R22 60Ω

R20

3.6kΩ

R21

900Ω

Q19

R10

470kΩ

R9

18kΩ

Q18

-

+

R18

1.8kΩ

R19

250Ω

Q11

Q8

R11

13kΩ

600Ω

R13

R14 2kΩ

Q10

Q14

Q12

13kΩ

Q13

R12

Q17

R16

600Ω

R17

3Ω

Q15

R15

300Ω

Output

Q16

To other half

2/12

-

V

GND

CC

LM119-LM219-LM319 Absolute maximum ratings and operating conditions

2 Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings (AMR)

Symbol Parameter Value Unit

-

- V

V

o

V

CC

V

CC

V

T

R

ESD

1. For supply voltages lower than ±15V the absolute maximum input voltage is equal to the supply voltage.

2. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous shortcircuits on all amplifiers.

3. R

th

4. Human body model: 100pF discharged through a 1.5kΩ resistor between two pins of the device, done for all couples of pin combinations with other pins floating.

5. Machine model: a 200pF cap is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5Ω), done for all couples of pin combinations with other pins floating.

6. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins.

Table 2. Operating conditions

Output to negative supply voltage 36 V

CC

-

Negative supply voltage -25 V

+

Positive supply voltage 18 V Differential input voltage ±5 V

id

i

Input voltage

(1)

±15 V Output short-circuit to ground Infinite Maximum junction temperature 150 °C

j

storage temperature range -65 to +150 °C

stg

Thermal resistance junction to ambient

thja

DIP14 SO-14

Thermal resistance junction to case

thjc

DIP14 SO-14

HBM: human body model MM: machine model

(5)

CDM: charged device model

are typical values.

(4)

(6)

(2) (3)

80

105

(2) (3)

33 31

400

100

1500

°C/W

V

Symbol Parameter Value Unit

V

Supply voltage 5 to ±15 V

CC

Operating free-air temperature range

T

oper

LM119 LM219 LM319

-55 to + 125

-40 to + 105 0 to + 70

°C

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Electrical characteristics LM119-LM219-LM319

3 Electrical characteristics

Table 3. VCC = ±15V, Tamb = +25°C (unless otherwise specified)

LM119 - LM219 LM319

Symbol Parameter

Min. Typ. Max. Min Typ. Max.

V

I

A

Input offset voltage (Rs ≤ 5kΩ)

io

ib

vd

≤ T

amb

≤ T

max

(1)

max

(1)

max

T

min

Input offset current

T

min

Input bias current

T

min

Large signal voltage gain 10 40 8 40 V/mV

(1) (2)

0.7 4 7

30 75

100

150 500

1000

28

10

80 200

300

250 1000

1200

Positive supply current

+

I

CC

-

I

CC

V

CC

V

CC

= ±15V

+

= +5V, V

CC

-

= 0V

8

4.3

11.5 8

4.3

12.5

Negative supply current 3 4.5 3 5 mA Input common mode voltage r a n ge

V

icm

VCC = ±15V

+

V

= +5V, V

CC

-

= 0V

±121±13

3

Low level output voltage

= 25mA

I

o

≤ -5mV

V

i

V

OL

Vi ≤ -10mV

≤ T

T

min

+

V

≥ +4.5V, V

CC

≤ -6mV

V

i

amb

≤ T

max

CC

-

= 0V, I

o(sink)

< 3.2mA

Vi ≤ -10mV

0.75

0.23

1.5

0.4

0.75

0.3

1.5

0.4

High level output current (Vo = +35V)

≥ 5mV

V

I

OH

t

res

1. These specifications apply for VCC = ±15V, unless otherwise stated.The offset voltage, offset current and bias current specifications apply for any supply voltage from a single +5V up to ±15V supplies. The offset voltages and offset current given are the maximum values required to drive the output down to 1V or up to +14V with a 1mA load current. Thus, these parameters define an error band and take into account the worst case effects of voltage gain and input impedance.

2. At output switch point, Vo ≈ 1.4V, no load, with V

3. The response time specified is for a 100mV input step with 5mV overdrive.

i

V

≥ 10mV

i

≤ T

amb

≤ T

T

min

Response time

, Vi ≥ 5mV

max

(3)

80 80 ns

from 5V to ±15V and over the full input common-mode range.

CC

0.2

1

2

0.2 10

10

Unit

mV

nA

mA

V

μA

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