LM2903HYD - STMicroelectronics

March 2008 Rev 3 1/9

LM2903H

Low power dual voltage comparators

Features

■Wide single supply voltage range or dual

supplies +2 V to +36 V or ±1 V to ±18 V

■Very low supply current (0 .4 mA) independent

of supply voltage (1 mW/comparator at +5 V)

■Low input bias current: 25 nA typ.

■Low input offset current: ±5 nA typ.

■Input common-mode voltage range includes

ground

■Low output saturation voltage:

250 mV typ. (IO = 4 mA)

■Differential input voltage range equal to the

supply voltage

■TTL, DTL, ECL, MOS, CMOS compatible

outputs

Description

This device consists of two independent low

power voltage comparators designed specifically

to operat e from a sing le supply o ver a wide r ange

of v oltages. Ope ration from split pow er supplies is

also possible.

These compara tors also have a unique

characteristic in that the input common-mode

voltage range includes ground even though

operated from a single power supply voltage.

SO-8

(Plastic micropackage)

Wafer form

Pin connections

(top view)

www.st.com

Absolute maximum ratings and operating conditions LM2903H

2/9

1 Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings (AMR)

Symbol Parameter Value Unit

VCC Supply voltage ±18 or 36 V

Vid Differential input voltage ±36 V

Vin Input voltage -0.3 to +36 V

Output shor t-circuit to ground (1)

1. Short-circuit from the output to VCC+ can cause excessive heating and eventual destruction. The maximum

output current is approximately 20 mA, independent of the magnitude of VCC+.

20 mA

Rthja Thermal resistance junction to ambient (2)

(SO-8)

2. Short-circuits can cause excessive heating and destructive dissipation. Values are typical.

125 °C/W

Rthjc Thermal resistance junction to case (2)

(SO-8) 40 °C/W

Tj Maximum junction temperature 150 °C

ESD HBM: human body model (3)

MM: machine model (4)

CDM: charged device model (5)

3. Human body model: A 100 pF capacitor is charged to the specified voltage, then discharged through a

1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations

while the other pins are floating.

4. Machine model: A 200 pF capacitor is charged to the specified voltage, then discharged directly between

two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of

connected pin combinations while the other pins are floating.

5. 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.

800

200

1500 V

Tstg Storage temperature range -65 to +15 0 °C

Table 2. Operating conditions

Symbol Parameter Value Unit

VCC+Supply voltage 2 to 36 V

Toper Operating free-air temperature range -40 to +150 °C

Vicm

Input common mode voltage range(VCC=30V)(1)

Tamb = +25°C

Tmin ≤ Tamb ≤ T

max

1. The input common-mode voltage of either input signal voltage should not be allowed to go negative by

more than 0.3 V. The upper end of the common-mode voltage range is VCC+ –1.5 V, but either or both

inputs can go to +30 V without damage.

0 to VCC+-1.5

0 to VCC+-2 V

LM2903H Circuit schematics

3/9

2 Circuit schematics

Figure 1. Schematic diagram (1/2 LM2903)

Figure 2. Pad locations

VCC- VCC-

VCC+

VCC-

3.5µA 100µA 3.5µA 100µA

Non-Inverting

Inverting

Input

OUT 1

OUT 2

Vcc +

E- (1) E+ (1)

E- (2)

GND

E+ (2)

year

Die id.

y909073090OUT2

909041565Vcc +

9090100100OUT1

9090100400E-1

9090100750E+1

9090415830GND

Pad dimensionsPad placementName

9090720760E+2

9090720410E-2

YXYX

909073090OUT2

909041565Vcc +

9090100100OUT1

9090100400E-1

9090100750E+1

9090415830GND

Pad dimensionsPad placementName

9090720760E+2

9090720410E-2

YXYX

All dimensions are specified in micrometer (um).

Electrical characteristics LM2903H

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3 Electrical characteristics

Table 3. VCC+ = 5V, VCC- = GND, Tamb = 25°C (unless other wise specified)

Symbol Parameter Min. Typ. Max. Unit

Vio Input offset v oltage (1)

Tmin ≤ T

amb ≤ T

max

15 mV

Iio Input offset current

Tmin ≤ T

amb ≤ T

max

550

150 nA

Iib Input bias current (2)

Tmin ≤ T

amb ≤ T

max

25 250

400 nA

AVD Large signal voltage gain (VCC+ = 15V,RL=15kΩ, Vo=1 to 11V) 25 200 V/mV

ICC

Supply current (all comparators)

VCC += 5V, no load

VCC+ = 30V, no load 0.4

2.5 mA

Vid Differential input voltage (3) VCC+V

VOL Low level output voltage (Vid = -1V, Isink = 4mA)

Tmin ≤ T

amb ≤ T

max

250 400

800 mV

IOH High level output current (VCC+ =Vo =30V, Vid = 1V)

Tmin ≤ T

amb ≤ Tmax

0.1 1nA

µA

Isink Output sink current (Vid = -1V,Vo = 1.5V)

Tmin ≤ T

amb ≤ T

max

216 mA

tre Small signal response time (4) (RL = 5.1kΩ to VCC+)1.3µs

trel

Large signal response time (5)

TTL input (Vref = +1.4 V, RL=5.1kΩ to VCC+)

Output signal at 50% of final value

Output signal at 95% of final value 500

1ns

µs

1. At output switch point, VO ≈ 1.4 V, RS = 0 Ω with VCC+ from 5 V to 30 V, and over the full input common-mode range (0 V

to VCC+ –1.5 V).

2. 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 there is no load charge on the reference of input lines.

3. Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the

common-mode range, the comparator will provide a proper output state.

The low input voltage state must not be less than –0.3 V (or 0.3 V below the negative power supply, if used)

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

5. Maximum values are guaranteed by design and evaluation.

LM2903H Electrical characteristics

5/9

Figure 3. Supply current vs. supply vo ltage Figure 4. Input current vs. supply voltage

0 10203040

0.0

0.2

0.4

0.6

0.8

1.0

TAMB = + 150 °C

TAMB = + 125 °C

TAMB = + 25 °C

TAMB = - 40 °C

SUPPLY CURRENT (mA)

SUPPLY VOLTAGE (V)

010203040

TAMB = + 150 °C

TAMB = + 125 °C

TAMB = + 25 °C

TAMB = - 40 °C

INPUT BIAS CURRENT (nA)

SUPPLY VOLTAG E (V)

Figure 5. Output saturation voltage vs.

output current (VCC=5V) Figure 6. Response time for various input

overdrives - negative trans ition

Figure 7. Response time for various input

overdrives - positive transition

0.1 1 10 100

0.01

0.1

TAMB = - 40 °C

TAMB = + 25 °C

TAMB = + 125 °C

TAMB = + 150 °C

OUTPUT SATURATION VOLTAG E (V)

OUTPUT SINK CURRENT (mA)

5.1k

-50

-100

INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V)

0 0.5 1 1.5 2

TIME (

Input overdrive : 5mV

20mV

100mV

Tamb= +25°C

5.1k

100

INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V)

0 0.5 1 1.5 2

TIME (

Input overdrive : 100mV

20mV

5mV

amb

= +25°C

Package information LM2903H

6/9

4 Package information

In order to meet environmental requirements, ST offers these devices in ECOPACK®

packages. These packages have a lead-free second level interconnect. The category of

second level interconnect is marked on the package and on the inner box label, in

compliance with JEDEC Standard JESD97. The maximum ratin gs rela ted to soldering

conditions are also marked on the inner box label. ECOPA CK is an ST trademark.

ECOPACK specifications are available at: www.st.com.

LM2903H Package information

7/9

Figure 8. SO-8 package mechanical drawing

Table 4. SO-8 package mechanical data

Ref.

Dimensions

Millimeters Inches

Min. Typ. Max. Min. Typ. Max.

A1.750.069

A1 0.10 0.25 0.004 0.010

A2 1.25 0.049

b 0.28 0.48 0.011 0.019

c 0.17 0.23 0.007 0.010

D 4.80 4.90 5.00 0.189 0.193 0.197

E 5.80 6.00 6.20 0.228 0.236 0.244

E1 3.80 3.90 4.00 0.150 0.154 0.157

e 1.27 0.050

h 0.25 0.50 0.010 0.020

L 0.40 1.27 0.016 0.050

k1°8°1°8°

ccc 0.10 0.004

Ordering information LM2903H

8/9

5 Ordering information

6 Revision history

Table 5. Order codes

Order code Temperature range P ackage P acking Marking

JLM2903H- E6D1

-40°C, +150°C

Wafer

LM2903HD

LM2903HDT SO-8 Tube or

Tape & reel 2903H

LM2903HYD(1)

LM2903HYDT(1)

1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening

according to AEC Q001 & Q 002 or equivalent.

SO-8

(A utomotive grade ) Tube or

Tape & reel 2903HY

Table 6. Document revision history

Date Revision Changes

25-Sep-2003 1 Initial release.

23-Aug-2005 2 PPAP ref erences inserted in the datasheet, see order codes table.

27-Mar-2008 3 Added ESD parameters in AMR table.

Updated document format.

LM2903H

9/9

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