Texas Instruments LM306P, LM306DR, LM306D Datasheet
LM306
DIFFERENTIAL COMPARATOR WITH STROBES
SLCS008A – OCTOBER 1979 – REVISED OCTOBER 1991
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Fast Response Times
D
Improved Gain and Accuracy
D
Fanout to 10 Series 54/74 TTL Loads
D
Strobe Capability
D
Short-Circuit and Surge Protection
D
Designed to Be Interchangeable With
National Semiconductor LM306
description
The LM306 is a high-speed voltage comparator
with differential inputs, a low-impedance highsink-current (100 mA) output, and two strobe
inputs. This device detects low-level analog or
digital signals and can drive digital logic or lamps
and relays directly. Short-circuit protection and
surge-current limiting is provided.
A low-level input at either strobe causes the output
to remain high regardless of the differential
input.When both strobe inputs are either open or
at a high logic level, the output voltage is
controlled by the differential input voltage. The
circuit will operate with any negative supply
voltage between –3 V and –12 V with little
difference in performance.
The LM306 is characterized for operation from
0°C to 70°C.
AVAILABLE OPTIONS
PACKAGE
T
A
VIOmax
°
SMALL OUTLINE PLASTIC DIP
at 25 C
(D) (P)
0°C to 70°C 5 mV LM306D LM306P
Copyright 1991, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
2
3
4
8
7
6
5
GND
IN+
IN–
V
CC–
V
CC+
OUT
STROBE 2
STROBE 1
D OR P PACKAGE
(TOP
VIEW)
IN–
IN+
STROBE 2
STROBE 1
OUT
functional block diagram
LM306
DIFFERENTIAL COMPARATOR WITH STROBES
SLCS008A – OCTOBER 1979 – REVISED OCTOBER 1991
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
schematic
V
CC–
IN–
IN+
70 Ω
STROBE 2
STROBE 1
V
CC+
OUT
GND
6.3 V
6.3 V
6.3 V
6.3 V
5 kΩ
6.3 V
17 kΩ
300 Ω
5 kΩ
300 Ω
600 Ω
3.5 kΩ
600 Ω
3 Ω
Resistor values are nominal.
LM306
DIFFERENTIAL COMPARATOR WITH STROBES
SLCS008A – OCTOBER 1979 – REVISED OCTOBER 1991
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
CC+
(see Note 1) 15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply voltage, V
CC–
(see Note 1) –15 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, V
ID
(see Note 2) ±5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
I
(either input, see Notes 1 and 3) ±7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Strobe voltage range (see Note 1) 0 V to V
CC+
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage, V
O
(see Note 1) 24 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage from output to V
CC–
30 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duration of output short circuit to ground (see Note 4) 10 s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values, except differential voltages and the voltage from the output to V
CC–
, are with respect to the network ground.
2. Differential voltages are at IN+ with respect to IN–.
3. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 7 V , whichever is less.
4. The output may be shorted to ground or either power supply.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING
FACTOR
DERATE
ABOVE T
A
TA = 70°C
POWER RATING
D
P
600 mW
600 mW
5.8 mW/°C
8.0 mW/°C
46°C
75°C
464 mW
600 mW