STMicroelectronics LM2903WH Low-power, dual-voltage comparator Datasheet

LM2903WH
Low-power, dual-voltage comparator
Datasheet - production data
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
S
MiniSO8
(plastic micropackage)
Pin connections (top view)
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.
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+
October 2015
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.
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This is information on a product in full production.
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www.st.com
Contents
LM2903WH
Contents
1
Schematic diagram.......................................................................... 3
2
Absolute maximum ratings and operating conditions ................. 4
3
4
Electrical characteristics ................................................................ 5
Typical application schematics ...................................................... 7
5
Package information ..................................................................... 10
5.1
MiniSO8 package information ......................................................... 11
6
Ordering information..................................................................... 12
7
Revision history ............................................................................ 13
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LM2903WH
1
Schematic diagram
Schematic diagram
Figure 1: Schematic diagram (1/2 LM2903WH)
VCC+
3.5 µA
100 µA
3.5 µA
VCC+
100 µA
VCC+
Non-inverting
input
VCC-
Vo
VCC-
VCC-
VCC-
Inverting
input
VCC-
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Absolute maximum ratings and operating
conditions
2
LM2903WH
Absolute maximum ratings and operating conditions
Table 1: Absolute maximum ratings
Symbol
Parameter
VCC
Supply voltage
Vid
Differential input voltage
Vin
Input voltage
Vout
Output voltage
Rthjc
Tj
Tstg
-
+
(VCC ) - 0.3 to (VCC ) + 0.3
V
36
(1)
Infinite
Thermal resistance junction to ambient
Thermal resistance junction to case
(2)
(2)
Maximum junction temperature
Storage temperature range
Human body model (HBM)
ESD
Unit
±18 or 36
Output short-circuit to ground
Rthja
Value
Machine model (MM)
190
°C/W
39
160
°C
-65 to 160
(3)
(4)
CDM: charged device model
2000
200
(5)
V
1500
Notes:
(1)
+
Short-circuits from the output to VCC can cause excessive heating and possible destruction. The maximum
+
output current is approximately 20 mA and is independent of the V CC magnitude.
(2)
Short-circuits can cause excessive heating and destructive dissipation. Values are typical and for a four-layer
PCB.
(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.
Table 2: Operating conditions
Symbol
Vicm
Toper
4/14
Parameter
Common mode input voltage range
-40 °C ≤ Tamb ≤ 150 °C
Operating free-air temperature range
DocID028311 Rev 1
Value
0 to
+
(VCC )
0 to
Unit
- 1.5
+
(VCC )
-2
-40 to 150
V
°C
LM2903WH
3
Electrical characteristics
Electrical characteristics
Table 3: VCC+ = 5 V, VCC- = GND, Tamb = 25 °C (unless otherwise specified)
Symbol
Parameter
Vio
Input offset voltage
Iio
Input offset current
Test conditions
Min.
Typ.
1
(1)
-40 °C ≤ Tamb ≤ 150 °C
-40 °C ≤ Tamb ≤ 150 °C
25
Avd
Large signal voltage gain
ICC
Supply current
(all comparators)
Vid
Differential input voltage
VOL
Low level output voltage
IOH
High level output current
Isink
Output sink current
Vid = -1 V, V o = 1.5 V
tres
Small signal response
(4)
time
RL = 5.1 kΩ to VCC+
trel
Large signal response time, TTL
(5)
input
-40 °C ≤ Tamb ≤ 150 °C
VCC = 15 V, RL = 15 kΩ, Vο = 1 tο
11 V
Unit
mV
50
150
(2)
Input bias current
7
15
5
Iib
Max.
250
nA
400
25
200
V/mV
VCC = 5 V, no load
0.4
1
VCC = 30 V, no load
1
2.5
(3)
VCC+
Vid = -1 V, Isink = 4 mA
250
-40 °C ≤ Tamb ≤ 150 °C
400
700
VCC = Vo = 30 V, Vid = 1 V
0.1
-40 °C ≤ Tamb ≤ 150 °C
V
mV
nA
1
6
mA
µA
16
mA
1.3
µs
Vref = 1.4 V, RL = 5.1 kΩ to VCC+,
output signal at 50 % of final value
500
ns
Vref = 1.4 V, RL = 5.1 kΩ to VCC+,
output signal at 95 % of final value
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)
(5)
The response time specified is for a 100 mV input step with 5 mV overdrive.
Maximum values are guaranteed by design and evaluation.
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Electrical characteristics
LM2903WH
Figure 3: Input current vs. supply voltage
Figure 4: Output saturation voltage vs.output current
Figure 5: Response time for various input overdrives negative transition
Input
voltage (mV)
Output
voltage (V)
Figure 2: Supply current vs. supply voltage
Input
voltage (mV)
Output
voltage (V)
Figure 6: Response time for various input overdrives - positive transition
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4
Typical application schematics
Typical application schematics
Figure 7: Basic comparator
Figure 8: Driving CMOS
5V
VCC = 5 V
15 kΩ
100 kΩ
+V(ref)
+V(ref)
1/2
LM2903
1/ 2
LM2903
VO
&
-V(ref)
-V(ref)
Figure 9: Driving TTL
Figure 10: Low-frequency op amp
5V
5V
15 kΩ
10 kΩ
1/2
LM 2903
+V(ref)
1/ 2
LM2903
~ e
l
&
-V(ref)
eo
100 kΩ
&
0.5 µF
1 kΩ
AV = 100
Figure 11: High-output current capability op amp
Figure 12: Transducer amplifier
5V
(e o = 0 V for e l = 0 V)
15 kΩ
1/ 2
LM2903
~
el
2N 2222
0.5 µF
100 kΩ
eo
1 kΩ
AV = 100
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Typical application schematics
LM2903WH
Figure 13: Low-frequency op amp with offset adjust
Figure 14: Zero crossing detector (single power supply)
5V
100 kΩ
5.1 kΩ
5.1 kΩ
100 kΩ
5.1 kΩ
el
1/ 2
LM2903
1N4148
20 MΩ
10 kΩ
Figure 15: Limit comparator
VCC
Figure 16: Split-supply applications - zero crossing
detector
(12 V)
15 V
10 kΩ
2RS
V(ref)
high
1/ 2
LM2903
5.1 kΩ
Lamp
RS
1/2
LM 2903
eI
eI ~
2RS
1/2
LM2903
eo
~
2N 2222
15 V
V(ref)
low
Figure 17: Crystal controlled oscillator
Figure 18: Comparator with a negative reference
VCC = 15 V
15 V
200 kΩ
2 kΩ
100 kΩ
5.1 kΩ
VCC
0.1 µF
1/2
LM2903
0
eo
1/2
LM2903
eI ~
5V
f = 100 kHz
15 V
200 kΩ
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DocID028311 Rev 1
eo
LM2903WH
Typical application schematics
Figure 19: Time delay generator
Figure 20: Two-decade high-frequency VCO
VCC
100 kΩ
Frequency control
voltage input
Vcontrol
500 pF
3 kΩ
VCC
3 kΩ
5.1 kΩ
1/ 2
LM2903
10 kΩ
100 kΩ
1/ 2
LM2903
0.01 µF
0.1 µF
Output 1
VCC /2
20 kΩ
Output 2
20 kΩ
50 kΩ
1/ 2
LM2903
VCC = + 30 V
Vcontrol
+250 mV
700 Hz
fo
VCC /2
+50 V
100 kHz
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Package information
5
LM2903WH
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 is an ST trademark.
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LM2903WH
5.1
Package information
MiniSO8 package information
Figure 21: MiniSO8 package outline
Table 4: MiniSO8 mechanical data
Dimensions
Ref.
Millimeters
Min.
Typ.
A
Inches
Max.
Min.
Typ.
1.1
A1
0
A2
0.75
b
Max.
0.043
0.15
0
0.95
0.030
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
0.80
0.016
e
L
0.85
0.65
0.40
0.60
0.006
0.033
0.026
0.024
L1
0.95
0.037
L2
0.25
0.010
k
ccc
0°
0.037
8°
0.10
DocID028311 Rev 1
0°
0.031
8°
0.004
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Ordering information
6
LM2903WH
Ordering information
Table 5: Order codes
Order code
LM2903WHYST
(1)
Temperature range
Package
Packing
Marking
-40 °C to +150 °C
MiniSO8 (automotive grade)
Tape and reel
K421
Notes:
(1)
Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening
according to AEC Q001 and Q 002 or equivalent.
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LM2903WH
7
Revision history
Revision history
Table 6: Document revision history
Date
Version
07-Oct-2015
1
DocID028311 Rev 1
Changes
Initial release
13/14
LM2903WH
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