STMicroelectronics LM2901 Low power quad voltage comparator Datasheet

LM2901
Low power quad voltage comparator
Features
■
Wide single supply voltage range or dual
supplies for all devices: +2V to +36V or ±1V to
±18V
■
Very low supply current (1.1mA) independent
of supply voltage (1.4mW/comparator at +5V)
■
Low input bias current: 25nA typ.
■
Low input offset current: ±5nA typ.
■
Input common-mode voltage range includes
negative rail
■
Low output saturation voltage:
250mV typ. (IO = 4mA)
■
Differential input voltage range equal to the
supply voltage
■
TTL, DTL, ECL, MOS, CMOS compatible
outputs
N
DIP14
(Plastic package)
D
SO-14
(Plastic micropackage)
P
TSSOP14
(Thin shrink small outline package)
Pin connections (top view)
Description
This device consists of four independent precision
voltage comparators. All these comparators are
designed specifically to operate from a single
supply over a wide range of voltages. Operation
from split power supplies is also possible.
14
Output 3
Output 1 2
13
Output 4
+
CC 3
12
V
CC
V
These comparators also have a unique
characteristic in that the input common-mode
voltage range includes the negative rail even
though operated from a single power supply
voltage.
December 2007
Output 2 1
Rev 5
Inverting input 1
4
11
Non-inverting input 4
Non-inverting input 1
5
10
Inverting input 4
Inverting input 2
6
9
Non-inverting input 3
Non-inverting input 2
7
8
Inverting input 3
1/13
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13
Schematic diagram
1
Schematic diagram
Figure 1.
2/13
LM2901
Schematic diagram (1/4 LM2901)
LM2901
2
Absolute maximum ratings and operating conditions
Absolute maximum ratings and operating conditions
Table 1.
Absolute maximum ratings
Symbol
Parameter
VCC
Supply voltage
Vid
Differential input voltage
Vin
Input voltage
Value
Unit
±18 to 36
V
±36
V
-0.3 to +36
V
Output short-circuit to ground (1)
Thermal resistance junction to ambient(2)
Rthja
80
105
100
DIP14
SO-14
TSSOP14
°C/W
Thermal resistance junction to case(2)
Rthjc
Tj
Tstg
33
31
32
DIP14
SO-14
TSSOP14
Maximum junction temperature
Storage temperature range
HBM: human body model
ESD
(3)
MM: machine model(4)
CDM: charged device model
(5)
+150
°C
-65 to +150
°C
500
V
100
V
1500
V
+
1. Short-circuits from the output to VCC can cause excessive heating and eventual destruction. The
maximum output current is approximately 20mA, independent of the magnitude of VCC+ .
2. Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous shortcircuits on all amplifiers. All values are typical.
3. Human body model: A 100pF capacitor is charged to the specified voltage, then discharged through a
1.5kΩ 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 200pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5Ω). 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
VCC
Vicm
Toper
Parameter
Supply voltage
Common mode input voltage range
Tmin ≤ Tamb ≤ Tmax
Operating free-air temperature range
Value
Unit
2 to 32
±1 to ±16
V
0 to (VCC+ -1.5)
0 to (VCC+ -2)
V
-40 to +125
°C
3/13
Electrical characteristics
3
LM2901
Electrical characteristics
Table 3.
Symbol
Vio
Iio
Iib
Avd
Electrical characteristics at VCC+ = 5V, VCC- = GND, Tamb = 25°C
(unless otherwise specified)
Parameter
Min.
Input offset voltage (1)
Typ.
Max.
Unit
1
7
15
mV
5
50
150
nA
25
250
400
nA
Tmin ≤ Tamb ≤ Tmax
Input offset current
Tmin ≤ Tamb ≤ Tmax
Input bias current (II+ or II-) (2)
Tmin ≤ Tamb ≤ Tmax
Large signal voltage gain
(VCC = 15V,RL=15kΩ, Vo=1 to 11V)
25
200
V/mV
Supply current (all comparators)
ICC
VCC = +5V, no load
VCC = +30V, no load
Vid
Differential input voltage(3)
VOL
Low level output voltage
Vid = -1V, Isink = 4mA
1.1
1.3
250
Tmin ≤ Tamb ≤ Tmax
IOH
High level output current
(VCC =Vo =30V, Vid = 1V)
tres
trel
1.
VCC+
V
400
700
mV
1
Output sink current (Vid = -1V,Vo = 1.5V)
Small signal response
mA
0.1
Tmin ≤ Tamb ≤ Tmax
Isink
2
2.5
6
time(4)
(RL = 5.1kΩ connected to VCC+)
nA
µA
16
mA
1.3
µs
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
1
ns
µs
At output switch point, VO ≈ 1.4V, RS = 0 with VCC+ from 5V to 30V, and over the full input common-mode
range (0V to VCC+ –1.5V).
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 loading charge on the reference of input
lines.
3. The response time specified is for a 100mV input step with 5mV overdrive.
4. 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 –0.3V (or 0.3V below the negative power supply, if used).
5. Maximum values are guaranteed by design.
4/13
LM2901
Electrical characteristics
Figure 2.
Supply current vs. supply voltage
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
Figure 6.
Response time for various input
overdrives - positive transition
5/13
Typical applications schematics
LM2901
4
Typical applications schematics
Figure 7.
Basic comparator
Figure 8.
Figure 9.
Driving TTL
Figure 10. Low frequency op-amp
Figure 11. Low frequency op-amp
6/13
Driving CMOS
Figure 12. Transducer amplifier
LM2901
Typical applications schematics
Figure 13. Low frequency op- amp with
offset adjust
Figure 14. Zero crossing detector (single
power supply)
Figure 15. Limit comparator
Figure 16. Split-supply applications - zero
crossing detector
Figure 17. Crystal controlled oscillator
Figure 18. Comparator with a negative
reference
7/13
Typical applications schematics
Figure 19. Time delay generator
Figure 20. Two-decade high-frequency VCO
8/13
LM2901
LM2901
5
Package information
Package information
In order to meet environmental requirements, STMicroelectronics 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 ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics
trademark. ECOPACK specifications are available at: www.st.com.
5.1
DIP14 package information
Figure 21. DIP14 package mechanical drawing
Table 4.
DIP14 package mechanical data
Dimensions
Ref.
Millimeters
Min.
a1
0.51
B
1.39
Typ.
Inches
Max.
Min.
Typ.
Max.
0.020
1.65
0.055
0.065
b
0.5
0.020
b1
0.25
0.010
D
20
0.787
E
8.5
0.335
e
2.54
0.100
e3
15.24
0.600
F
7.1
0.280
I
5.1
0.201
L
Z
3.3
1.27
0.130
2.54
0.050
0.100
9/13
Package information
5.2
LM2901
SO-14 package information
Figure 22. SO-14 package mechanical drawing
Table 5.
SO-14 package mechanical data
Dimensions
Ref.
Millimeters
Min.
Typ.
A
a1
Inches
Max.
Typ.
1.75
0.1
0.2
a2
Max.
0.068
0.003
0.007
1.65
0.064
b
0.35
0.46
0.013
0.018
b1
0.19
0.25
0.007
0.010
C
0.5
0.019
c1
45° (typ.)
D
8.55
8.75
0.336
0.344
E
5.8
6.2
0.228
0.244
e
1.27
0.050
e3
7.62
0.300
F
3.8
4.0
0.149
0.157
G
4.6
5.3
0.181
0.208
L
0.5
1.27
0.019
0.050
M
S
10/13
Min.
0.68
0.026
8° (max.)
LM2901
5.3
Package information
TSSOP14 package information
Figure 23. TSSOP14 package mechanical drawing
A
A2
A1
K
e
b
L
c
E
D
E1
PIN 1 IDENTIFICATION
1
Table 6.
TSSOP14 package mechanical data
Dimensions
Ref.
Millimeters
Min.
Typ.
A
Inches
Max.
Min.
Typ.
1.2
A1
0.05
A2
0.8
b
Max.
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
0.19
0.30
0.007
0.012
c
0.09
0.20
0.004
0.0089
D
4.9
5
5.1
0.193
0.197
0.201
E
6.2
6.4
6.6
0.244
0.252
0.260
E1
4.3
4.4
4.48
0.169
0.173
0.176
e
1
0.65 BSC
K
0°
L1
0.45
0.60
0.0256 BSC
8°
0°
0.75
0.018
8°
0.024
0.030
11/13
Ordering information
6
LM2901
Ordering information
Table 7.
Order codes
Order code
Temperature
range
Package
Packing
Marking
LM2901N
DIP14
Tube
LM2901N
LM2901D
LM2901DT
SO-14
Tube or tape & reel
LM2901PT
TSSOP14
Tape & reel
LM2901YD(1)
LM2901YDT(1)
SO-14
(Automotive grade)
Tube or tape & reel
LM2901YPT(2)
TSSOP14
(Automotive grade)
Tape & reel
2901
-40°C to +125°C
2901Y
1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening
according to AEC Q001 & Q 002 or equivalent.
2. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening
according to AEC Q001 & Q 002 or equivalent are on-going.
7
Revision history
Table 8.
Document revision history
Date
Revision
Jan-2002
1
Initial release.
Jul-2005
2
1 - PPAP references inserted in the datasheet see Table : Order
codes on page 1.
2 - ESD protection inserted in Table 1 on page 3.
Oct-2005
3
The following changes were made in this revision:
– PPAP part number added in table Order codes on page 1.
– Formatting changes throughout.
18-Jul-2006
4
ESD HBM value corrected in Table 1 on page 3.
5
Added Rthja and Rthjc parameters to Table 1: Absolute maximum
ratings. Added footnotes for ESD parameters.
Removed Vicm parameter from electrical characteristics in Table 3.
Reformatted package information in Section 5.
Added footnotes for automotive grade parts in Table 7: Order codes.
19-Dec-2007
12/13
Changes
LM2901
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