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产品型号LM239的概述

芯片LM239的概述 LM239是一种常用的比较器芯片，允许用户在各种应用中进行模拟信号的比较。作为双电源操作设备，LM239的工作电压范围很广，适用于多种电源配置。这种比较器非常适合用于电压监测、信号整形、模数转换、开关电源等领域。此芯片的双输入可处理的多种信号，使其在电子设计中得到了广泛的应用。芯片LM239的详细参数 LM239的关键参数如下： - 工作电压范围：3V至36V。 - 输入失调电压：最大值为5mV，确保在高精度应用中的可靠性。 - 电源电流：当Vcc为15V时，电流消耗为1.5mA。 - 开环增益：可达到1000V/V，确保信号的增强特性。 - 温度范围：工作温度范围为-40℃至+125℃，适合各种环境条件下的应用。 - 响应时间：在5V电源下，响应时间为400ns，足以满足高速信号处理的需求。这些参数使LM239在各种高精度、高速应用中表现出色，因此它是...

产品型号LM239的Datasheet PDF文件预览

INTEGRATED CIRCUITS

LM139/239/239A/339/339A/LM2901/MC

3302

Quad voltage comparator

Product specification

IC11 Data Handbook

1995 Nov 27

Philips

Semiconductors

Philips Semiconductors

Product specification

LM139/239/239A/339/339A

/LM2901/MC3302

Quad voltage comparator

DESCRIPTION

PIN CONFIGURATION

The LM139 series consists of four independent precision voltage

comparators, with an offset voltage specification as low as 2.0mV

max for each comparator, which were designed specifically to

operate from a single power supply over a wide range of voltages.

Operation from split power supplies is also possible and the low

power supply current drain is independent of the magnitude of the

power supply voltage. These comparators also have a unique

characteristic in that the input common–mode voltage range

includes ground, even though they are operated from a single power

supply voltage.

D, F, N Packages

OUTPUT 3

OUTPUT 2

OUTPUT 1

V+

OUTPUT 4

GND

INPUT 1 –

INPUT 1 +

INPUT 1 –

INPUT 4 +

INPUT 4 –

INPUT 3 +

The LM139 series was designed to directly interface with TTL and

CMOS. When operated from both plus and minus power supplies,

the LM139 series will directly interface with MOS logic where their

low power drain is a distinct advantage over standard comparators.

INPUT 1 +

INPUT 3 –

TOP VIEW

SL00070

FEATURES

Figure 1. Pin Configuration

• Wide single supply voltage range 2.0V to 36V or dual

supplies ±1.0V to ±18V

• Very low supply current drain (0.8mA) independent of supply

EQUIVALENT CIRCUIT

voltage (1.0mW/comparator at 5.0V

)

• Low input biasing current 25nA

• Low input offset current ±5nA and offset voltage

• Input common–mode voltage range includes ground

• Differential input voltage range equal to the power supply voltage

• Low output 250mV at 4mA saturation voltage

3.5µA

100µA

3.5µA

100µA

• Output voltage compatible with TTL, DTL, ECL, MOS and CMOS

INPUT

logic systems

OUTPUT

– INPUT

APPLICATIONS

• A/D converters

• Wide range VCO

• MOS clock generator

• High voltage logic gate

• Multivibrators

SL00071

(1 Comparator Only)

Figure 2. Equivalent Circuit

ORDERING INFORMATION

DESCRIPTION

TEMPERATURE RANGE

–55 to +125°C

–25°C to +85°C

–40°C to +125°C

0 to +70°C

ORDER CODE

LM139F

DWG #

14–Pin Ceramic Dual In-Line Package (Cerdip)