PHILIPS LM111

Philips Semiconductors Linear Products
Product specification
LM111/211/311/
LM311B
Voltage comparator
DESCRIPTION
PIN CONFIGURATION
The LM111 series are voltage comparators that have input currents
approximately a hundred times lower than devices like the µA710.
They are designed to operate over a wider range of supply voltages;
from standard ±15V op amp supplies down to a single 3V supply.
Their output is compatible with RTL, DTL, and TTL as well as MOS
circuits. Further, they can drive lamps or relays, switching voltages
up to 50V at currents as high as 50mA.
D, FE, N PACKAGES
Both the inputs and the outputs of the LM111 series can be isolated
from system ground, and the output can drive loads referred to
ground, the positive supply, or the negative supply. Offset balancing
and strobe capability are provided and outputs can be wire-ORed.
Although slower than the µA710 (200ns response time vs 40ns), the
devices are also much less prone to spurious oscillations. The LM111
series has the same pin configuration as the µA710 series.
GND
1
INPUT
2
INPUT
3
V–
4
+
–
8
V+
7
OUTPUT
6
BAL/STROBE
5
BALANCE
APPLICATIONS
• Precision squarer
• Positive/negative peak detector
• Low voltage adjustable reference supply
• Switching power amplifier
FEATURES
• Operates from single 3V supply (LM311B)
• Maximum input bias current: 150nA (LM311—250nA)
• Maximum offset current: 20nA (LM311—50nA)
• Differential input voltage range: ±30V
• Power consumption: 135mW at ±15V
• High sensitivity—200V/mV
• Zero crossing detector
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
ORDER CODE
DWG #
0404B
8-Pin Plastic Dual In-Line Package (DIP)
-55°C to +125°C
LM111N
8-Pin Plastic Dual In-Line Package (DIP)
-25°C to +85°C
LM211N
0404B
8-Pin Plastic Small Outline Package (SO)
0 to +70°C
LM311D
0174C
8-Pin Plastic Dual In-Line Package (DIP)
0 to +70°C
LM311N
0404B
8-Pin Plastic Small Outline Package (SO)
-25°C to +85°C
LM211D
0174C
8-Pin Ceramic Dual In-Line Package (CERDIP)
-55°C to +125°C
LM111FE
0580A
8-Pin Plastic Small Outline Package (SO)
0 to +70°C
LM311BD
0174C
8-Pin Plastic Dual In-Line Package (DIP)
0 to +70°C
LM311BN
0404B
August 31, 1994
273
853-0927 13721
Philips Semiconductors Linear Products
Product specification
LM111/211/311/
LM311B
Voltage comparator
EQUIVALENT SCHEMATIC
BALANCE/
STROBE
BALANCE
R3
300
R1
1.3K
R4
300
V+
R2
1.3K
R9
600
R8
750
Q8
Q7
Q10
Q20
R5
70
Q11
Q12
R6
1.2K
Q5
R7
1.2K
Q13
Q19
R10
4K
Q8
OUTPUT
Q14
Q3
Q1
D1
5V
Q4
D2
5V
Q18
Q9
R17
60
R15
400
R11
130
Q2
Q15
INPUTS
R15
450
Q23
R12
600
Q22
Q2
Q18
R19
250
R18
200
R14
2K
Q17
R13
4
V–
ABSOLUTE MAXIMUM RATINGS
SYMBOL
VS
PARAMETER
RATING
UNIT
36
V
LM111/LM211
50
V
LM311/LM311B
40
V
Ground to negative supply voltage
30
V
Total supply voltage
Output to negative supply voltage:
Differential input voltage
±30
V
VIN
Input voltage1
±15
V
PD MAX
Maximum power dissipation,
F package
810
mW
N package
1190
mW
D package
780
mW
10
sec
LM111
-55 to +125
°C
LM211
-25 to +85
°C
0 to +70
°C
TA=25°C (still-air)2
I
Output short-circuit duration
TA
Operating ambient temperature range
LM311/LM311B
TSTG
Storage temperature range
-65 to +150
°C
TSOLD
Lead soldering temperature
(10sec max)
300
°C
NOTES:
1. This rating applies for ±15V supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit is
equal to the negative supply voltage or 30V below the positive supply, whichever is less.
2. Derate above 25°C, at the following rates: F package at 6.4mW/°C; N package at 9.5mW/°C; D package at 6.2m/W°C
August 31, 1994
274
Philips Semiconductors Linear Products
Product specification
LM111/211/311/
LM311B
Voltage comparator
DC ELECTRICAL CHARACTERISTICS1, 2, 3, 6
Over temperature range unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
LM111/LM211
Min
Typ
Max
LM311
Min
LM311B
Typ
Max
Min
Typ
Max
UNIT
VOS
Input offset voltage3
TA=25°C, RS≤50kΩ
0.7
3.0
2.0
7.5
2.0
7.5
mV
IOS
Input offset current3
TA=25°C
4.0
10
6.0
50
6
25
nA
IBIAS
Input bias current
TA=25°C
60
100
100
250
100
200
AV
Voltage gain
TA=25°C
200
200
200
V/mV
200
500
ns
Response time4
VSAT
Saturation voltage
IBAL/STR
Strobe on current
TA=25°C
200
LM111/211 VIN≤-5mV,
IOUT=50mA
LM311/B VIN≤-10mV,
IOUT=50mA
TA=25°C
0.75
TA=25°C
3.0
LM111/211 VIN≥5mV,
VOUT=35V
LM311/B VIN≥10mV,
VOUT=35V
TA=25°C,
ISTROBE=3mA
(V– = VGND = –5V)
0.2
1.5
1.5
Output leakage current6
VOS
Input offset voltage3
4.0
IOS
Input offset current3
20
IBIAS
Input bias current
150
10
13.8
to
-14.7
13.0
0.2
50
mA
nA
10
10
mV
70
50
nA
300
250
nA
V+
–1.5
V
13.8
to
-14.7
13.0
0.23
0.4
0.23
0.4
V
1.6
3.5
mA
VOL
Saturation voltage6
V+ ≥ 4.5V, V- = 0
LM111/211 VIN≤-6mV,
ISINK≤8mA
LM311/B VIN≤-10mV,
ISINK≤8mA
0.23
0.4
IOH
Output leakage current
VIN≥5mV, VOUT=35V
0.1
0.5
ICC
Positive supply current
TA=25°C
5.1
6.0
5.1
7.5
IEE
Negative supply voltage
TA=25°C
4.1
5.0
4.1
5.0
-14.5
0.2
V
50
V=±15V (Pin 7 may go
to 5V)
-14.5
1.5
3.0
Input voltage range
VIN
0.75
3.0
ILEAKAGE
RS≤50kΩ
0.75
nA
V–
+0.5
µA
mA
NOTES:
1. This rating applies for ±15V supplies. The positive input voltage limit is 30V above the negative supply. The negative input voltage limit is
equal to the negative supply voltage or 30V below the positive supply, whichever is less.
2. These specifications apply for VS=±15V and 0°C < TA < 70°C unless otherwise specified. With the LM211, however, all temperature
specifications are limited to -25°C ≤ TA ≤ 85°C and for the LM111 is limited to -55°C TA < 125°C. The offset voltage, offset current, and bias
current specifications apply for any supply voltage from a single 5V supply up to ±15V supplies.
3. The offset voltages and offset currents given are the maximum values required to drive the output within a volt of either supply with 1mA
load. Thus, these parameters define an error band and take into account the worst case effects of voltage gain and input impedance.
4. The response time specified is for a 100mV input step with 5mV over-drive.
5. Do not short the strobe pin to ground; it should be current driven at 3mA to 5mA.
6. LM311B, all parameters are at V+ = 3V ±10%, V– = GND = 0V.
August 31, 1994
275
Philips Semiconductors Linear Products
Product specification
LM111/211/311/
LM311B
Voltage comparator
TYPICAL APPLICATIONS
V+ 5V
BAL
R1
5 3K
2
8
LM311
3
–
R1
4.5K
V+ = 5V
6
+
INPUT
R2
3K
1
TO
MOS
LOGIC
7
R3
10K
4
R3
2K
2
8
+
7
LM311
R2
1K
V+ = 5V
3
1
–
TTL
OUTPUT
R3
82K
R1
240K
R5
1K
2
+
8
INPUT
7
LM311
4
3
C1
1
–
4
R2
47K
V– = 10V
R4
82K
MAGNETIC
PICKUP
* Values shown are for a 0 to 30V logic swing and a 15V threshold.
** May be added to control speed and reduce susceptibility to noise spikes.
Zero Detector
Driving MOS Logic
August 31, 1994
Detector for Magnetic
Transducer
276
TTL Interface with High
Level Logic
TO TTL
OUTPUT