LM2903W STMicroelectronics, LM2903W Datasheet

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LM2903W

Manufacturer Part Number
LM2903W
Description
Low power dual voltage comparator
Manufacturer
STMicroelectronics
Datasheet

Specifications of LM2903W

Low Input Bias Current
25 nA typ.
Low Input Offset Current
±5 nA typ.
Low Output Saturation Voltage
250 mV typ. (IO= 4 mA)
Esd Internal Protection
2 kV

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Features
Description
This device consists of two independent low-
power voltage comparators designed specifically
to operate from a single supply over a wide range
of voltages. Operation from split power supplies is
also possible.
The input common-mode voltage range includes
the negative rail even though operated from a
single power supply voltage.
All the pins are protected against electrostatic
discharge up to 2 kV. As a consequence, the input
voltages must not exceed the magnitude of V
or V
January 2012
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
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
negative rail
Low output saturation voltage:
250 mV typ. (I
Differential input voltage range equal to the
supply voltage
TTL, DTL, ECL, MOS, CMOS compatible
outputs
ESD internal protection: 2 kV
CC
-
.
O
= 4 mA)
Doc ID 022662 Rev 1
CC
+
Low-power dual voltage comparator
Pin connections (top view)
1 - Output 1
2 - Inverting input 1
3 - Non-inverting input 1
4 - V
5 - Non-inverting input 2
6 - Inverting input 2
7 - Output 2
8 - V
(Plastic micropackage)
CC
CC
-
+
SO-8
D
LM2903W
Preliminary data
www.st.com
1/13
13

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LM2903W Summary of contents

Page 1

... This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. Low-power dual voltage comparator (Plastic micropackage) Pin connections (top view Output Inverting input Non-inverting input Non-inverting input Inverting input Output Doc ID 022662 Rev 1 LM2903W Preliminary data D SO 1/13 www.st.com 13 ...

Page 2

... Schematic diagram 1 Schematic diagram Figure 1. Schematic diagram (1/2 LM2903W) 2/13 Doc ID 022662 Rev 1 LM2903W ...

Page 3

... LM2903W 2 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol V Supply voltage CC V Differential input voltage id V Input voltage in V Output voltage out Output short-circuit to ground Thermal resistance junction to ambient R thja SO-8 Thermal resistance junction to case R thjc SO-8 T Maximum junction temperature ...

Page 4

... 1 ( 5.1 kΩ ( 5.1 kΩ Ω with V + from and over the full input common-mode range S CC Doc ID 022662 Rev 1 LM2903W Min. Typ. Max. Unit 150 25 250 nA 400 25 200 V/ ...

Page 5

... LM2903W Figure 2. Supply current vs. supply voltage Figure 4. Output saturation voltage vs. output current Figure 6. Response time for various input overdrives - positive transition Figure 3. Input current vs. supply voltage Figure 5. Response time for various input overdrives - negative transition Doc ID 022662 Rev 1 Electrical characteristics 5/13 ...

Page 6

... Doc ID 022662 Rev 1 Driving CMOS 5 V 100 kΩ +V (ref & LM2903 -V (ref kΩ 1/2 LM2903 ~ e l 0.5 μF 100 kΩ 1 kΩ 100 kΩ 3 kΩ LM2903 20 MΩ 10 kΩ LM2903W ...

Page 7

... LM2903W Figure 13. Low frequency op- amp with offset adjust 5 V Offset adjust 100 kΩ MΩ kΩ Figure 15. Limit comparator 10 kΩ (ref high LM2903 1/2 LM2903 (ref) low Figure 17. Crystal controlled oscillator 200 kΩ ...

Page 8

... MΩ 10 kΩ 1/2 V LM2903 03 3 kΩ 10 MΩ 10 kΩ 1/2 V LM2903 O2 3 kΩ 10 MΩ 10 kΩ 1/2 V LM2903 O1 V 100 kΩ kΩ 5.1 kΩ LM2903 LM2903W Output 1 Output 2 ...

Page 9

... LM2903W 5 Package information In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ECOPACK trademark. Doc ID 022662 Rev 1 Package information ® ...

Page 10

... Dimensions Millimeters Min. Typ. Max. 1.75 0.10 0.25 1.25 0.28 0.48 0.17 0.23 4.80 4.90 5.00 5.80 6.00 6.20 3.80 3.90 4.00 1.27 0.25 0.50 0.40 1.27 1.04 1° 8° 0.10 Doc ID 022662 Rev 1 LM2903W Inches Min. Typ. Max. 0.069 0.004 0.010 0.049 0.011 0.019 0.007 0.010 0.189 0.193 0.197 0.228 0.236 0.244 0.150 0.154 0.157 0.050 0.010 0.020 0.016 0.050 0.040 1° 8° 0.004 ...

Page 11

... LM2903W 6 Ordering information Table 5. Order codes Order code LM2903WDT (1) LM2903WYDT 1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent are ongoing. Temperature Package range SO-8 -40°C to +125°C SO-8 (Automotive grade) Doc ID 022662 Rev 1 Ordering information ...

Page 12

... Revision history 7 Revision history Table 6. Document revision history Date 18-Jan-2012 12/13 Revision 1 Initial release. Doc ID 022662 Rev 1 LM2903W Changes ...

Page 13

... LM2903W Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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