LM2901 [STMICROELECTRONICS]
LOW POWER QUAD VOLTAGE COMPARATORS; 低功耗四电压比较器
| 型号： | LM2901 |
| 厂家： | 
ST |
| 描述： | LOW POWER QUAD VOLTAGE COMPARATORS |
| 文件： | 总12页 (文件大小：543K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LM2901
Low Power Quad Voltage Comparator
■ 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)
N
DIP14
(Plastic Package)
■ Low input bias current: 25nA typ.
■ Low input offset current: 5nA typ.
■ Input common-mode voltage range includes
ground
■ Low output saturation voltage:
250mV typ. (I = 4mA)
O
■ Differential input voltage range equal to the
D
supply voltage
SO-14
(Plastic Micropackage)
■ TTL, DTL, ECL, MOS, CMOS compatible
outputs
Description
This device consists of four independent precision
voltage comparators. All these comparators were
designed specifically to operate from a single
supply over a wide range of voltages. Operation
from split power supplies is also possible.
P
TSSOP14
(Thin Shrink Small Outline Package)
These comparators also have
a
unique
characteristic in that the input common-mode
voltage range includes ground even though
operated from a single power supply voltage
.
Order Codes
Temperature
Part Number
Package
Packaging
Marking
Range
LM2901N
DIP14
SO-14
Tube
LM2901N
2901
LM2901D/LM2901DT
-40°C, +125°C
LM2901PT
Tube or Tape & Reel
TSSOP14
(Thin Shrink Outline Package)
Tape & Reel
2901
LM2901YD/YDT
SO-14 (automotive grade level)
Tube or Tape & Reel
2901Y
Rev 2
1/12
July 2005
www.st.com
12
Absolute Maximum Ratings
LM2901
1
Absolute Maximum Ratings
Table 1.
Symbol
Key parameters and their absolute maximum ratings
Parameter Value
Unit
V
Supply Voltage
18 to 36
36
V
V
V
CC
V
Differential Input Voltage
Input Voltage
ID
V
-0.3 to +36
I
(1)
Output Short-circuit to Ground
(2)
Power Dissipation
1500
830
710
DIP14
SO-14
TSSOP14
P
mW
d
J
T
Junction Temperature
+150
-65 to +150
1.5
°C
°C
Kv
V
T
Storage Temperature Range
stg
(3)
HBM: Human Body Model
(4)
ESD
100
MM: Machine Model
CDM: Charged Device Model
1500
V
1. Short-circuit from the output to Vcc+ can cause excessive heating and event+ual destruction. The maximum
output current is approximately 20mA, independent of the magnitude of Vcc
2. Pd is calculated with Tamb = +25°C, Tj = +150°C and
R
thja = 80°C/W for DIP14 package
Rthja = 150°C/W for SO-14 package
Rthja = 175°C/W for TSSOP14 package
3. Human body model, 100pF discharged through a 1.5kΩ resistor into pin of device.
4. Machine model ESD, a 200pF cap is charged to the specified voltage, then discharged directly into the IC with
no external series resistor (internal resistor < 5Ω), into pin to pin of device.
Table 2.
Symbol
Operating conditions
Parameter
Value
Unit
2 to 32
1 to 16
V
V
Supply Voltage
V
CC
+
Common Mode Input Voltage Range
Operating Free-Air Temperature range
V
0 to (V
-1.5)
icm
CC
T
-40 to +125
°C
oper
2/12
LM2901
Typical Application Schematics
2
Typical Application Schematics
Figure 1. Schematic diagram (1/4 LM2901)
Figure 2. Pin connection (top view)
Output 2
Output 1
1
2
3
14
Output 3
13 Output 4
V
+
12
11
10
9
-
V
CC
CC
Inverting input 1
4
Non-inverting input 4
Inverting input 4
Non-inverting input 1
Inverting input 2
5
6
7
Non-inverting input 3
Inverting input 3
Non-inverting input 2
8
3/12
Electrical Characteristics
LM2901
3
Electrical Characteristics
+
-
Table 3.
V
= 5V, V = GND, T
= 25°C (unless otherwise specified)
CC
cc
amb
Symbol
Parameter
Min.
Typ.
Max.
Unit
(1)
Input Offset Voltage
V
T
= +25°C
1
7
15
mV
io
amb
min
T
≤ T
≤ T
max.
amb
Input Offset Current
T
T
= +25°C
I
5
50
150
nA
nA
amb
min
io
≤ T
≤ T
amb
max.
+
- (2)
Input Bias Current (I or I )
I
I
I
25
250
400
T
T
= 2.5V
ib
amb
min
≤ T
≤ T
max.
amb
Large Signal Voltage Gain
(V = 15V,R =15kΩ, V =1 to 11V)
A
V/mV
mA
vd
25
200
cc
L
o
Supply Current (all comparators))
V
V
= +5V, no load
= +30V, no load
I
1.1
1.3
2
2.5
CC
CC
cc
(3)
Input Common Mode Voltage Range (V = 30V)
cc
+
V
-1.5
V
0
0
V
V
T
T
= +25°C
CC
icm
amb
min
+
≤ T
≤ T
max.
V
-2
amb
CC
+
(4)
V
V
Differential Input Voltage
Low Level Output Voltage
id
CC
V
= -1V, I
= 4mA
id
sink
V
mV
OL
T
= +25°C
250
400
700
amb
min
T
≤ T
≤ T
amb max
High Level Output Current
(V =V =30V, V = 1V)
CC
amb
min
o
id
I
oh
T
T
= +25°C
0.1
16
nA
µA
1
≤ T
≤ T
max
amb
I
Output Sink Current (V = -1V,V = 1.5V)
6
mA
sink
id
o
(5)
+
Small Signal Response Time
t
µs
re
1.3
(R = 5.1kΩ connected to V
L
CC
(6)
Large Signal Response Time
+
TTL Input (V = +1.4 V, R =5.1kΩ to V )
CC
Output Signal at 50% of final value
Output Signal at 95% of final value
ref
L
t
rel
500
1
ns
µs
1. 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 no loading charge exists on the reference of input lines
3. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more
than 0.3V. The upper end of the common-mode voltage range is VCC+ –1.5V, but either or both inputs can go
to +30V without damage.
4. The response time specified is for a 100mV input step with 5mV overdrive.
5. 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 bellow the negative power supply, if used)
6. Maximum values are guaranteed by design.
4/12
LM2901
Electrical Characteristics
Figure 3. Supply current versus supply
voltage
Figure 4. Input current versus supply voltage
Figure 5. Output saturation voltage versus
output current
Figure 6. Response time for various input
overdrives - negative transition
Figure 7. Response time for various input
overdrives - positive transition
5/12
Typical Applications
LM2901
4
Typical Applications
Figure 8. Basic comparator
Figure 9. Driving CMOS
Figure 10. Driving TTL
Figure 11. Low frequency op-amp
Figure 12. Low frequency op-amp
Figure 13. Transducer amplifier
6/12
LM2901
Typical Applications
Figure 14. Low frequency op- amp with offset Figure 15. Zero crossing detector (single
adjust
power supply)
Figure 16. Limit comparator
Figure 17. Split-supply applications - zero
crossing detector
Figure 18. Crystal controlled oscillator
Figure 19. Comparator with a negative
reference
7/12
Typical Applications
Figure 20. Time delay generator
LM2901
Figure 21. Two-decade high-frequency VCO
8/12
LM2901
PACKAGE MECHANICAL DATA
5
PACKAGE MECHANICAL DATA
5.1
DIP14 package
Plastic DIP-14 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
0.51
1.39
TYP
MAX.
MIN.
0.020
0.055
MAX.
a1
B
b
1.65
0.065
0.5
0.020
0.010
b1
D
E
e
0.25
20
0.787
8.5
2.54
15.24
0.335
0.100
0.600
e3
F
7.1
5.1
0.280
0.201
I
L
3.3
0.130
Z
1.27
2.54
0.050
0.100
P001A
9/12
PACKAGE MECHANICAL DATA
LM2901
5.2
SO-14 package
SO-14 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
TYP
MAX.
1.75
0.2
MIN.
MAX.
0.068
0.007
0.064
0.018
0.010
A
a1
a2
b
0.1
0.003
1.65
0.46
0.25
0.35
0.19
0.013
0.007
b1
C
0.5
0.019
c1
D
45˚ (typ.)
8.55
5.8
8.75
6.2
0.336
0.228
0.344
0.244
E
e
1.27
7.62
0.050
0.300
e3
F
3.8
4.6
0.5
4.0
5.3
0.149
0.181
0.019
0.157
0.208
0.050
0.026
G
L
1.27
0.68
M
S
˚ (max.)
8
PO13G
10/12
LM2901
PACKAGE MECHANICAL DATA
5.3
TSSOP14 package
TSSOP14 MECHANICAL DATA
mm.
TYP
inch
TYP.
DIM.
MIN.
MAX.
1.2
MIN.
MAX.
0.047
0.006
0.041
0.012
0.0089
0.201
0.260
0.176
A
A1
A2
b
0.05
0.8
0.15
1.05
0.30
0.20
5.1
0.002
0.031
0.007
0.004
0.193
0.244
0.169
0.004
0.039
1
0.19
0.09
4.9
c
D
E
5
6.4
0.197
0.252
6.2
6.6
E1
e
4.3
4.4
4.48
0.173
0.65 BSC
0.0256 BSC
K
0˚
8˚
0˚
8˚
L
0.45
0.60
0.75
0.018
0.024
0.030
A2
A
K
L
b
e
A1
c
E
D
E1
PIN 1 IDENTIFICATION
1
0080337D
11/12
Revision History
LM2901
6
Revision History
Date
Revision
Changes
Jan. 2002
1
Initial release.
1 - PPAP references inserted in the datasheet see Table : Order Codes
on page 1.
July 2005
2
2 - ESD protection inserted in Table 1 on page 2.
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granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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12/12
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