Philips LM111, LM211, LM311, LM311B User Manual
Philips Semiconductors Linear Products Product specification
LM111/211/311/
LM311B
Voltage comparator
273
August 31, 1994 853-0927 13721
DESCRIPTION
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.
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.
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
PIN CONFIGURATION
1
2
3
4 5
6
7
8
D, FE, N PACKAGES
GND
INPUT
INPUT
V–
V+
OUTPUT
BAL/STROBE
BALANCE
+
–
APPLICATIONS
•Precision squarer
•Positive/negative peak detector
•Low voltage adjustable reference supply
•Switching power amplifier
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #
8-Pin Plastic Dual In-Line Package (DIP) -55°C to +125°C LM111N 0404B
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
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Philips Semiconductors Linear Products Product specification
LM111/211/311/
LM311B
Voltage comparator
August 31, 1994
274
EQUIVALENT SCHEMATIC
BALANCE/
STROBE
BALANCE
R3
300R11.3KR4300R21.3K
Q8
R5
70
Q5
R6
1.2KR71.2K
Q7
Q3
R8
750
Q10
R9
600
Q11
Q20
Q19
Q8
Q9
Q18
R10
4K
Q13
Q12
Q14
OUTPUT
V+
Q15
R11
130
R12
600
R13
4
Q18
V–
Q17
R15
450
R15
400
R14
2K
R17
60
Q22
R18
200
Q4
Q2
Q23
R19
250
Q2
D15VD2
5V
Q1
INPUTS
ABSOLUTE MAXIMUM RATINGS
SYMBOL PARAMETER RATING UNIT
V
S
Total supply voltage 36 V
Output to negative supply voltage:
LM111/LM211 50 V
LM311/LM311B 40 V
Ground to negative supply voltage 30 V
Differential input voltage ±30 V
V
IN
Input voltage
1
±15 V
P
D MAX
Maximum power dissipation,
TA=25°C (still-air)
2
F package 810 mW
N package 1190 mW
D package 780 mW
I Output short-circuit duration 10 sec
T
A
Operating ambient temperature range
LM111 -55 to +125 °C
LM211 -25 to +85 °C
LM311/LM311B 0 to +70 °C
T
STG
Storage temperature range -65 to +150 °C
T
SOLD
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
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