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PDF LM2903WH Data sheet ( Hoja de datos )
| Número de pieza | LM2903WH | |
| Descripción | dual-voltage comparator | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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LM2903WH
Low-power, dual-voltage comparator
Datasheet - production data
S
MiniSO8
(plastic micropackage)
Pin connections (top view)
1 - Output 1
2 - Inverting input 1
3 - Non-inverting input 1
4 - VCC -
5 - Non-inverting input 2
6 - Inverting input 2
7 - Output 2
8 - VCC+
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
negative rail
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
ESD internal protection: 2 kV
Wide operating temperature range: -40 to
150 °C
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
negative rail even though operated from a single
power supply voltage.
All pins are protected against electrostatic
discharge up to 2 kV. Consequently, the input
voltages must not exceed the VCC+ or VCC-
magnitudes.
October 2015
DocID028311 Rev 1
This is information on a product in full production.
1/14
www.st.com
1 page  
LM2903WH
Electrical characteristics
3 Electrical characteristics
Table 3: VCC+ = 5 V, VCC- = GND, Tamb = 25 °C (unless otherwise specified)
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
Vio Input offset voltage (1)
Iio Input offset current
Iib Input bias current (2)
Avd Large signal voltage gain
-40 °C ≤ Tamb ≤ 150 °C
-40 °C ≤ Tamb ≤ 150 °C
-40 °C ≤ Tamb ≤ 150 °C
VCC = 15 V, RL = 15 kΩ, Vο = 1 tο
11 V
17
mV
15
5 50
150
25 250
nA
400
25 200
V/mV
ICC
Supply current
(all comparators)
Vid Differential input voltage (3)
VOL Low level output voltage
IOH High level output current
Isink Output sink current
tres
Small signal response
time (4)
trel
Large signal response time, TTL
input (5)
VCC = 5 V, no load
VCC = 30 V, no load
Vid = -1 V, Isink = 4 mA
-40 °C ≤ Tamb ≤ 150 °C
VCC = Vo = 30 V, Vid = 1 V
-40 °C ≤ Tamb ≤ 150 °C
Vid = -1 V, V o = 1.5 V
0.4 1
mA
1 2.5
VCC+
V
250 400
700
mV
0.1 nA
1 µA
6 16
mA
RL = 5.1 kΩ to VCC+
1.3 µs
Vref = 1.4 V, RL = 5.1 kΩ to VCC+,
output signal at 50 % of final value
Vref = 1.4 V, RL = 5.1 kΩ to VCC+,
output signal at 95 % of final value
500 ns
1 µs
Notes:
(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 from the IC due to the PNP input stage. This current is essentially constant, independent of
the state of the output, so no loading charge exists 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 provides 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.
DocID028311 Rev 1
5/14
5 Page 
LM2903WH
Package information
5.1 MiniSO8 package information
Figure 21: MiniSO8 package outline
Table 4: MiniSO8 mechanical data
Dimensions
Ref. Millimeters
Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
A 1.1 0.043
A1 0
0.15 0
0.006
A2
0.75
0.85
0.95
0.030
0.033
0.037
b 0.22
0.40 0.009
0.016
c 0.08
0.23 0.003
0.009
D
2.80
3.00
3.20
0.11
0.118
0.126
E
4.65
4.90
5.15
0.183
0.193
0.203
E1
2.80
3.00
3.10
0.11
0.118
0.122
e 0.65
0.026
L
0.40
0.60
0.80
0.016
0.024
0.031
L1 0.95
0.037
L2 0.25
0.010
k 0°
8° 0°
8°
ccc 0.10 0.004
DocID028311 Rev 1
11/14
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet LM2903WH.PDF ] | |
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