September 2006 Rev 4 1/14
14
LM111-LM211-LM311
Voltage comparator with strobe
Features
■Maximum inpu t cu rre n t: 15 0 nA
■Maximum offset current: 20nA
■Differential input voltage range: ±30V
■Power consumption:135mW at ±15V
■Supply voltage: +5V to ±15V
■Output current: 50mA
Description
The LM111, LM211, LM311 are voltage
comparators that hav e low input currents.
They are also designed to operate over a wide
range of supply volt ages: from standard ±15V
operational amplifier supplies down to the single
+5V supply used for IC logic.
Their output is compat ible with RTL-DTL and TTL
as well as MOS circuits and can switch voltages
up to +50V at output currents as high as 50mA.
Order codes
D
SO-8
(Plastic micropackage)
N
DIP8
(Plastic package)
Pin connections (top view)
Part number Temperature
range Package Packing Marking
LM211N -40°C, +105°C DIP8 Tube LM211N
LM211D/DT SO-8 Tube or tape & reel 211
LM311N 0°C, +70°C DIP8 Tube LM311
LM311D/DT SO-8 Tube or Tape & reel 311
www.st.com
Contents LM111-LM211-LM311
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Contents
1 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Absolute maximum ratings & operating conditions . . . . . . . . . . . . . . . 4
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Typical application schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 DIP8 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.2 SO-8 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
LM111-LM211-LM311 Schematic diagra m
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1 Schematic diagram
Figure 1. Schemati c diagram
Absolute maximum ratings & operating condit ions LM111-LM211-LM311
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2 Absolute maximum ratings & operating conditions
Table 1. Absolute maximum ratings (AMR)
Symbol Parameter Value Unit
VCC Supply voltage 36 V
Vid Differential input voltage ±30 V
ViInput voltage (1)
1. This rating applies for ±15V supplies. The positive input voltage limit is 30V above the negative. The
negative input voltage is equal to the negative supply voltage or 30V below the positive supply, whichever
is less.
±15 V
V(1-4) Ground to negative supply voltage 30 V
V(7-4)
Output to negative supply voltage
LM111-LM211
LM311 50
40 V
Output short-circuit duration 10 s
Voltage at strobe pin VCC+ -5 V
pd
Power dissipation (2)
DIP8
SO-8
2. Pd is calculated with Tamb = +25°C, Tj = +150°C and Rthja = 100°C/W for the DIP8 package, and
Rthja = 175°C/W for the SO-8 package.
1250
710 mW
TjJunction temperature +150 °C
Tstg Storage temperature range -65 to +150 °C
Table 2. Operating conditions
Symbol Parameter Value Unit
VCC Supply voltage 5 to ±15 V
Toper
Operating free-air temperature range
LM111
LM211
LM311
-55 to +125
-40 to +105
0 to +70
°C
LM111-LM211-LM311 Electrical characteristi cs
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3 Electrical characteristics
Table 3. VCC+ = ±15V, Tamb = +25°C (unless otherwise specified)
Symbol Parameter Conditions LM111 - LM211 LM311 Unit
Min. Typ. Max. Min. Typ. Max.
Vio Input offset voltage (1) RS ≤ 50kΩ
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
0.7 3
427.5
10 mV
Iio Input offset current (1) Tamb = +25°C
Tmin ≤ T
amb ≤ T
max
410
20 650
70 nA
Iib Input bias current (1) Tamb = +25°C
Tmin ≤ T
amb ≤ Tmax
60 100
150 100 250
300 nA
Avd Large signal voltage gain 40 200 40 200 V/mV
ICC+
ICC-Supply currents Positive
Negative 5.1
4.1 6
55.1
4.1 7.5
5mA
Vicm Input common mode
voltage range Tmin ≤ T
amb ≤ T
max
-14.5 +13.8
-14.7 +13 -14.5 +13.8
-14.7 +13 V
VOL Low level output voltage
Tamb = +25°C , IO = 50mA,
Vi ≤ -5mV 0.75 1.5
V
Tamb = +25°C , IO = 50mA,
Vi ≤ -10mV 0.75 1.5
Tmin ≤ T
amb ≤ T
max
VCC+ ≥ +4.5V, VCC- = 0
IO = 8mA, Vi ≤ -6m 0.23 0.4
Tmin ≤ T
amb ≤ T
max
VCC+ ≥ +4.5V, VCC- = 0
IO = 8mA, Vi ≤ -10mV 0.23 0.4
IOH High level output current
Tamb = +25°C
Vi ≥ +5mV, VO = +35V 0.2 10 nA
Tamb = +25°C
Vi ≥ +10mV, VO = +35V 0.2 50 nA
Tmin ≤ T
amb ≤ T
max
Vi ≥ +5mV, VO = +35V 0.1 0.5 µA
Istrobe Strobe current 3 3 mA
tre Response time (2) 200 200 ns
1. The offset voltage, offset current and bias current specifications apply for any supply voltage from a single +5V supply up to
±15V supplies. The offset voltages and offset currents given are the maximum values required to drive the output down to
+1V or up to +14V with a 1mA load current. Thus, these parameters define an error band and take into account the worst-
case of voltage gain and input impedance.
2. The response time specified is for a 100mV input step with 5mV overdrive.
Electrical characteristics LM111-LM211-LM311
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LM111-LM211-LM311 Electrical characteristi cs
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Electrical characteristics LM111-LM211-LM311
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LM111-LM211-LM311 Typical appli cation schematics
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4 Typical application schematics
Package mechanical data LM111-LM211-LM311
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5 Package mechanical data
In order to meet environmental requirements, STMicroelectronics offers these devices in
ECOPACK® packages. These packages have a Lead-free second level interconn ect. The
category of second level interconnect is marked on the pa ckage and on the inner bo x 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
tradema rk. ECOPACK specifications are available at: www.st.com.
LM111-LM211-LM311 Package mechanical data
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5.1 DIP8 package
DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 3.3 0.130
a1 0.7 0.028
B 1.39 1.65 0.055 0.065
B1 0.91 1.04 0.036 0.041
b 0.5 0.020
b1 0.38 0.5 0.015 0.020
D 9.8 0.386
E 8.8 0.346
e 2.54 0.100
e3 7.62 0.300
e4 7.62 0.300
F 7.1 0.280
I 4.8 0.189
L 3.3 0.130
Z 0.44 1.6 0.017 0.063
Plastic DIP-8 MECHANICAL DATA
P001F
Package mechanical data LM111-LM211-LM311
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5.2 SO-8 package
DIM. mm. inch
MIN. TYP MAX. MIN. TYP. MAX.
A 1.35 1.75 0.053 0.069
A1 0.10 0.25 0.04 0.010
A2 1.10 1.65 0.043 0.065
B 0.33 0.51 0.013 0.020
C 0.19 0.25 0.007 0.010
D 4.80 5.00 0.189 0.197
E 3.80 4.00 0.150 0.157
e 1.27 0.050
H 5.80 6.20 0.228 0.244
h 0.25 0.50 0.010 0.020
L 0.40 1.27 0.016 0.050
k ˚ (max.)
ddd 0.1 0.04
SO-8 MECHANICAL DATA
0016023/C
8
LM111-LM211-LM311
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