LM111J-8 National Semiconductor, LM111J-8 Datasheet - Page 11

• Manufacturer Part Number: LM111J-8
• Description: IC COMPARATOR VOLT 8-CDIP
• Manufacturer: National Semiconductor
• Type: General Purposer

Specifications of LM111J-8

• Number Of Elements: 1
• Output Type: DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
• Voltage - Supply: 5 V ~ 30 V, ±2.5 V ~ 15 V
• Mounting Type: Through Hole
• Package / Case: 8-CDIP (0.300", 7.62mm)
• Amplifier Type: Comparator
• Comparator Type: Voltage
• Current, Input Bias: 60 nA
• Current, Input Offset: 4 nA
• Current, Offset, Input: 4.0 nA (Typ.) @ +25 °C
• Current, Output: 40 mA
• Current, Supply: -4.1 to +5.1 mA
• Number Of Circuits: 1
• Package Type: CDIP-8
• Power Dissipation: 135 mW
• Response Time: 200 nS
• Temperature, Operating, Maximum: 125 °C
• Temperature, Operating, Minimum: 55 °C
• Temperature, Operating, Range: -55 to +125 °C
• Temperature, Storage: -65 to +150 °C
• Voltage, Differential Input: ±30 V
• Voltage, Gain: 200 V/mV
• Voltage, Input: ±15 V
• Voltage, Input Offset: 0.7 mV
• Voltage, Offset, Input: 0.7 mV @ +25 °C
• Voltage, Saturation: 0.23 V (Typ.)
• Voltage, Supply: 5 to 36 V
• Input Current: 150 nA max. over temperature
• Offset Current: 20 nA max. over temperature
• Differential Input Voltage Range: +⁄-30V
• No. Of Comparators: 1
• Supply Current: 5.1mA
• Supply Voltage Range: 5V To 36V
• Amplifier Case Style: DIP
• No. Of Pins: 8
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *LM111J-8

8.0 Application Hints
7. When both inputs of the LM111 are connected to active
Pin connections shown are for LM111H in the H08 hermetic package
Pin connections shown are for LM111H in the H08 hermetic package
signals, or if a high-impedance signal is driving the
positive input of the LM111 so that positive feedback
would be disruptive, the circuit of Figure 1 is ideal. The
positive feedback is to pin 5 (one of the offset adjust-
ment pins). It is sufficient to cause 1 to 2 mV hysteresis
and sharp transitions with input triangle waves from a
few Hz to hundreds of kHz. The positive-feedback signal
across the 82Ω resistor swings 240 mV below the posi-
(Continued)
FIGURE 2. Conventional Positive Feedback
FIGURE 1. Improved Positive Feedback
11
8. These application notes apply specifically to the LM111,
tive supply. This signal is centered around the nominal
voltage at pin 5, so this feedback does not add to the
V
trimmed out, using the 5 kΩ pot and 3 kΩ resistor as
shown.
LM211, LM311, and LF111 families of comparators, and
are applicable to all high-speed comparators in general,
(with the exception that not all comparators have trim
pins).
OS
of the comparator. As much as 8 mV of V
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OS
can be