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LM311DT

In Stock: 6,166

Voltage comparator with strobe

Manufacturers:
STMicroelectronics, Inc
Mfr.Part#:
LM311DT
Datasheet:
LM311DT Datasheet (PDF)
Package/Case:
SOP-8
Product Type:
Comparators
RoHS:
Lifecycle:
Active
EDA/CAD Models:
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LM311DT Information

Description

The LM311DT is a high-precision voltage comparator from Texas Instruments that operates over a wide range of voltages with a single power supply. It features differential inputs for precise comparisons, open-collector outputs for flexibility in circuit design, and short-circuit protection to prevent damage. This device offers TTL-compatible outputs, making it easy to integrate into existing systems, and has a low power consumption for energy efficiency. The LM311DT is suitable for various applications such as industrial control systems, automation, motor control, power management, and sensor interfaces in electronic systems and devices.

Package

The package type of LM311DT is SO-8 (Small Outline-8).

Pinout

The LM311DT is a comparator IC packaged in an SO-8 package, which has 8 pins.

Here's a concise breakdown of the pin functions:

Pin 1: VCC (Positive Supply Voltage)
Pin 2: OUT (Open Collector Output)
Pin 3: IN+ (Non-Inverting Input)
Pin 4: IN- (Inverting Input)
Pin 5: NC (No Connection)
Pin 6: GND (Ground)
Pin 7: VCC (Positive Supply Voltage, same as Pin 1)
Pin 8: OUT (Open Collector Output, same as Pin 2)

The LM311DT has an open-collector output, which means it can be connected to a pull-up resistor or another device that provides the necessary voltage for the output signal.

Manufacturer

The manufacturer of the LM311DT is Texas Instruments, a leading global semiconductor design and manufacturing company that specializes in analog and embedded processing technologies.

Applications

According to the product information, the LM311DT is commonly used in:

Voltage comparators
Pulse-width modulation (PWM) circuits
Voltage-controlled oscillators
Digital-to-analog converters (DACs)

It's also utilized in various electronic systems and devices for applications such as:

Automation
Motor control
Power management
Sensor interfaces

Equivalent

The equivalent products of LM311DT are:

LM339
LM2901
TLC272
TLC273

These devices offer similar voltage comparator functionality with slight variations in specifications, such as operating voltage range or output current.

Specifications

Category	Integrated Circuits (ICs)LinearComparators	Type	General Purpose
Number of Elements	1	Output Type	DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
Voltage - Supply, Single/Dual (±)	5V ~ 30V, ±2.5V ~ 15V	Voltage - Input Offset (Max)	7.5mV @ ±15V
Current - Input Bias (Max)	0.25µA @ ±15V	Current - Output (Typ)	50mA
Current - Quiescent (Max)	7.5mA	CMRR, PSRR (Typ)	-
Propagation Delay (Max)	-	Hysteresis	-
Operating Temperature	0°C ~ 70°C	Mounting Type	Surface Mount
Base Product Number	LM311	Package/Case	SOP-8

LM311DT FAQs

1.Q: Does the LM311DT support rail-to-rail operation?

A: No, it does not feature rail-to-rail input/output capability.

2.Q: What are some typical applications for the LM311DT?

A: Common uses include level shifting, oscillators, pulse generators, and analog-to-digital threshold detection circuits.

3.Q: What is the maximum input offset voltage of the LM311DT?

A: The maximum input offset voltage is 7.5mV when operating at ±15V.

4.Q: Can the LM311DT be used in automotive applications?

A: No, this part is not automotive-qualified (PPAP/automotive = "No").

5.Q: What package does the LM311DT come in?

A: It is available in an SO-8 (SOIC) surface-mount package with gull-wing leads, measuring 5mm x 4mm x 1.65mm.

6.Q: What are the recommended operating conditions for the LM311DT?

A: It operates at 5V to 30V (single supply) or ±15V (dual supply), with a temperature range of 0°C to 70°C.

7.Q: What is the typical response time of the LM311DT?

A: The typical response time is 0.2μs, with a range of 0.05μs to 0.5μs depending on conditions.

8.Q: What is the output type of the LM311DT?

A: The LM311DT has an open-collector output, allowing flexible output voltage configuration with an external pull-up resistor.

9.Q: What are the key features of the LM311DT voltage comparator?

A: The LM311DT features a single-channel open-collector output, fast response time (0.2μs typical), wide supply range (5V to ±15V/30V), and high voltage gain (106dB typical).

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Ratings and Reviews

C

C**b
02/06/2024

15

Corresponds to the description of the seller thanks
L

L**m
01/09/2024

9

Chips working. Amplifier made. 5 + + + + + + + + + +
D

D**o
09/13/2022

15

The goods are received. I haven't checked in yet.
C

C**s
06/13/2021

19

The product corresponds to the description. Delivered in 70 days. Thank You

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LM311DT Datasheet PDF

Preliminary Specification LM311DT PDF

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