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LM2901
LOW POWER QUAD VOLTAGE COMPARATORS
.WI .VERY .LOWI .LOWI .I .LOW .DI .TTL,
DE SINGLE SUPPLY VOLTAGE RANGE OR DUAL SUPPLIES FOR ALL DEVICES : +2V TO +36V OR 1V TO 18V LOW SUPPLY CURRENT (1.1mA) INDEPENDENT OF SUPPLY VOLTAGE (1.4mW/comparator at +5V) NPUT BIAS CURRENT : 25nA TYP NPUT OFFSET CURRENT : 5nA TYP NPUT COMMON-MODE VOLTAGE RANGE INCLUDES GROUND OUTPUT SATURATION VOLTAGE : 250mV TYP. (IO = 4mA) FFERENTIAL INPUT VOLTAGE RANGE EQUAL TO THE SUPPLY VOLTAGE DTL, ECL, MOS, CMOS COMPATIBLE OUTPUTS
N DIP14 (Plastic Package)
D SO14 (Plastic Micropackage)
DESCRIPTION This device consists of four independent precision voltage comparators. All these comparators were designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible. These comparators also have a unique characteristic in that the input common-mode voltage range includes ground even thoughoperatedfrom a single power supply voltage. PIN CONNECTIONS (top view)
Output 2 1 Output 1 2
P TSSOP14 (Thin Shrink Small Outline Package)
ORDER CODES
Part Number LM2901 Temperature Range -40, +125 C
o
Package N * D * P *
Example : LM2901D
14
Output 3
13 Output 4 12 V CC
V
+ CC 3
4 5 6 7
Inve rting input 1 Non-inve rting input 1 Inve rting input 2 Non-inve rting input 2
11
Non-inve rting input 4
10 Inve rting input 4 9 8 Non-inve rting input 3 Inve rting input 3
August 1998
1/10
LM2901
SCHEMATIC DIAGRAM (1/4 LM2901)
V CC
3.5 A
100 A
3.5 A
100 A
Non-inve rting Input VO Inve rting Input
V CC
ABSOLUTE MAXIMUM RATINGS
Symbol VCC Vid VI Ptot Toper Tstg Supply Voltage Differential Input Voltage Input Voltage Output Short-circuit to Ground - (note 1) Power Dissipation Operating Free-air Temperature Range Storage Temperature Range 570 -40, +125 -65, +150 mW
o o
Parameter
LM2901 18 to 36 36 -0.3 to +36
Unit V V V
C C
Notes : 1. S hort- cir cui t fr om the out put t o V C C + can cause excessive heat ing and event ual destr ucti on. The maxi mum output cur r ent is appr oxi mat el y 20mA, i ndependent of t he magni tude of V CC + .
2/10
LM2901
ELECTRICAL CHARACTERISTICS VCC+ = +5V, VCC- = GND, Tamb = 25oC (unless otherwise specified)
Symbol Vio Parameter Input Offset Voltage - (note 2) o Tamb = +25 C Tmin. Tamb Tmax. Input Offset Current o Tamb = +25 C Tmin. Tamb Tmax. Input Bias Current (II or II ) - (note 3) o Tamb = +25 C Tmin. Tamb Tmax. Large Signal Voltage Gain (VCC = 15V, RL =15k, VO = 1 to 11V) Supply Current (all comparators) VCC = +5V, no load VCC = +30V, no load Input Common Mode Voltage Range - (note 4) (VCC = 30V) o Tamb = +25 C Tmin. Tamb Tmax. Differential Input Voltage - (note 6) Low Level Output Voltage (Vid = -1V, Isink = 4mA) Tamb = +25oC Tmin. Tamb Tmax. High Level Output Current ( Vid = 1V) (VCC = VO = 30V) Tamb = +25oC Tmin. Tamb Tmax. Output Sink Current (Vid = -1V, VO = 1.5V) 6 25
+ -
Min.
Typ. 1
Max. 7 15
Unit mV
Iio
nA 5 50 150 nA 25 250 400 V/mV 200 mA 1.1 1.3 2 2.5 V 0 0 VCC 1.5 VCC+ -2 VCC+ V mV 250 400 700
+
Iib
Avd ICC
Vicm
Vid VOL
IOH
0.1 1 16
nA A mA
Isink
Notes :
2. A t output sw it ch poi nt, VO 1.4V , RS = 0 wi th VCC + f rom 5V to 30V , and over the ful l i nput common- mode range ( 0V t o VCC + -1.5V) . 3. The dir ecti on of t he input cur rent i s out of the IC due t o t he P NP i nput stage. Thi s cur r ent is essent ial ly const ant, independent of the st ate of t he output , so no l oadi ng char ge exi st s on t he r efer ence of input li nes. 4. The i nput common- mode vol t age of ei ther input signal volt age should not be al low ed to go negat i ve by more t han 0. 3V. T he upper end of t he common- mode volt age range i s VC C + -1.5V , but ei t her or bot h i nput s can go t o +30V w it hout damage. 5. The r esponse t ime specif i ed i s f or a 100mV i nput step wi t h 5mV overdr ive. F or l ar ger over dr i ve si gnal s 300ns can be obtai ned. 6. P osi t i ve excur sions of i nput vol t age may exceed the pow er suppl y l evel. As l ong as t he other vol tage r emai ns wi t hi n t he common-mode range, t he compar at or wi l l pr ovi de a proper output stat e. T he l ow input vol tage st ate must not be l ess t han -0.3V (or 0.3V bell ow the negat ive pow er supply, i f used).
3/10
LM2901
SUPPLY CURRENT versus SUPPLY VOLTAGE
1 SUPPLY CURRENT (mA) 0.8 0.6
Ta m b = +70 C
INPUT CURRENT versus SUPPLY VOLTAGE
80 INPUT CURRENT (nA) Vi = 0V 60 40 20 Ta mb = +125 C Ta mb = +70 C 0 10 20 30 SUP P LY VOLTAGE (V) 40
9 R i = 10
Ta mb = -55 C
Ta mb = 0 C
T a m b = +2 5 C
Ta mb = -55 C
Ta mb = 0 C Ta mb = +25 C
0.4
Tamb = +125 C
0.2
R L=
0
10 20 30 S UP P LY VOLTAGE (V)
40
OUTPUT SATURATION VOLTAGE versus OUTPUT CURRENT
SATURATION VOLTAGE (V) 10 10 10 10 10
1
RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES - NEGATIVE TRANSITION
OUTPUT VOLTAGE (V)
Out of s a tura tion
0
Tamb = +125 C
-1
-2
Tamb = +25 C
-3 -2
INPUT VOLTAGE (mV)
Tamb = -55 C
6 5 4 3 2 1 0 0 -50 -100
Input ove rdrive : 5mV 20mV 100mV
eI
5V
5.1k
eo
Ta mb= +25 C 0 0.5 1 TIME (s ) 1.5 2
10
10 -1
10 0
10
1
10 2
OUTPUT S INK CURRENT (mA)
RESPONSE TIME FOR VARIOUS INPUT OVERDRIVES - POSITIVE TRANSITION
OUTPUT VOLTAGE (V)
INPUT VOLTAGE (mV)
6 Input ove rdrive : 100mV 5 4 5mV 3 2 20mV 1 0 100 Ta mb = +25 C 50 0 0 0.5 1 1.5 TIME (s )
5V
5.1k
eI eo
2
4/10
LM2901
TYPICAL APPLICATIONS BASIC COMPARATOR DRIVING CMOS
VCC = 5V 15k +V(re f) -V(re f) +V(re f) 1/4 LM2901 VO
1/4 LM2901
5V
100k
&
-V(re f)
DRIVING TTL
LOW FREQUENCY OP AMP
5V
5V
15k
10k
+V(re f)
-V(re f)
1/4 LM2901
~
1/4 LM2901
& &
e
I
eo 100k A V = 100 0.5 F
1k
LOW FREQUENCY OP AMP
(e o 0V for eI = 0V) =
TRANSDUCER AMPLIFIER
5V
5V
Magne tic pick-up 10k
15k
1/4 LM2901
~
3k
2N 2222
0.5F
1/4 LM2901
eo
eI
20M
10k
100k
1k
eo
A V= 100
5/10
LM2901
TYPICAL APPLICATIONS (continued) TIME DELAY GENERATOR
V = +15V CC
10k 15k 200k
3k
10M
10k
1/4 LM2901 VO3
V CC
t0 t3
V3
3k
10k
51k
1/4 LM2901
10M
10k
V CC
0t O tA
V C1 V2
0.001 F
1/4 LM2901
V(re f.)
INPUT GATING S IGNAL
V O2
V CC
t0 t2
3k
V CC
51k 10k
10M
V3 V V2 C1 V1
0 t 0 t 1 t2 t 3 t4 t
1/4 LM2901
VV O1 CC
t0 t1
V1
51k
LOW FREQUENCY OP AMP WITH OFFSET ADJUST
5V
Offs e t Adjus t 100k
ZERO CROSSING DETECTOR (single power supply)
5V
5V
R2
1M
1M
15k
1/4 LM2901
100k
100k
5.1k
Rs eI
~
RI
eI
2N 2222
5.1k
5.1k
1/4 LM2901
0.5 F
1N4148
R1 100k
1k
20M
eo
10k
6/10
LM2901
TYPICAL APPLICATIONS (continued) TWO-DECADE HIGH-FREQUENCY VCO
V CC
100k 100k
V CC
3k
50 0pF
10k
1/4 LM2901
3k
Freq uency control voltage inp ut vcontrol
5.1k
0.1 F
20k 50k 20k
0.01 F
1/4 LM29 01
Output 1
V /2 CC
Output 2
1/4 LM29 01
V /2 CC
V = +30V CC +250mV V control +50V 7 00 Hz f 100kHz o
LIMIT COMPARATOR
VCC (12V)
CRYSTAL CONTROLLED OSCILLATOR
V = 15V CC
2R S V(ref)
high
1 0k
1/4 LM2901
200k 100k
2k
V CC
La mp
RS e
0.1 F
1/4 LM2901
eo
0
I~
2R S V(ref)
low
1/4 LM2901
f = 100kHz
2N 2222 200k
SPLIT-SUPPLY APPLICATIONS ZERO CROSSING DETECTOR 15V
COMPARATOR WITH A NEGATIVE REFERENCE
15V
5.1k
1/4 LM2901
I~
5.1k
1/4 LM2901
eo
eo
e
e
I~
5V 15V
15V
7/10
LM2901
PACKAGE MECHANICAL DATA 14 PINS - PLASTIC DIP
Dimensions a1 B b b1 D E e e3 F i L Z
Min. 0.51 1.39
Millimeters Typ.
Max. 1.65
Min. 0.020 0.055
Inches Typ.
Max. 0.065
0.5 0.25 20 8.5 2.54 15.24 7.1 5.1 3.3 1.27 2.54 0.050
0.020 0.010 0.787 0.335 0.100 0.600 0.280 0.201 0.130 0.100
DIP14.TBL
8/10
PM-DIP14.EPS
LM2901
PACKAGE MECHANICAL DATA 14 PINS - PLASTIC MICROPACKAGE (SO)
Dim. A a1 a2 b b1 C c1 D E e e3 F G L M S
Millimeters Min. 0.1 0.35 0.19 0.5 45o (typ.) 8.55 5.8 1.27 7.62 3.8 4.6 0.5 4.0 5.3 1.27 0.68 8 o (max.) 0.150 0.181 0.020 8.75 6.2 0.336 0.228 Typ. Max. 1.75 0.2 1.6 0.46 0.25 0.014 0.007 0.004 Min.
Inches Typ. Max. 0.069 0.008 0.063 0.018 0.010 0.020 0.334 0.244 0.050 0.300 0.157 0.050 0.027
SO14.TBL
0.208
9/10
PM-SO14.EPS
LM2901
PACKAGE MECHANICAL DATA 14 PINS - THIN SHRINK SMALL OUTLINE PACKAGE
Dim. A A1 A2 b c D E E1 e k l
Millimeters Min. 0.05 0.80 0.19 0.09 4.90 4.30 0o 0.50 0.60 5.00 6.40 4.40 0.65 8o 0.75 0o 0.09 4.50 0.169 1.00 Typ. Max. 1.20 0.15 1.05 0.30 0.20 5.10 0.01 0.031 0.007 0.003 0.192 Min.
Inches Typ. Max. 0.05 0.006 0.039 0.041 0.15 0.012 0.196 0.252 0.173 0.025 8o 0.0236 0.030 0.177 0.20
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this pub lication are subject to change without notice. Thi s 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. (c) The ST log o is a trademark of STMicroelectronics (c) 1998 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdo m - U.S.A.
ORDER CODE :
10/10

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