الصفحة الرئيسية > الدوائر المتكاملة الدوائر المتكاملة > الدوائر المتكاملة الخطية التناظرية > LM358N

LM358N

Dual op-amp, 1.1MHz GBW, 3-32V single supply, GND-referenced input, PDIP-8

15500

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جزء الشركة المصنعة ： جزء الشركة المصنعة

LM358N

الحزمة ： الحزمة

PDIP-8 (9.27 x 6.35 x 4.57 mm)

العلامة التجارية ： العلامة التجارية

فئات المنتجات:：فئات المنتجات

الدوائر المتكاملة الخطية التناظرية, الدوائر المتكاملة الدوائر المتكاملة

توصيات أخرى قد تكون مهتماً بها.

SII9396SCNUC-BAR

IS43TR16256BL-125KBLI

الوصف

نظرة عامة على المنتج

The LM358N from Texas Instruments is a dual general-purpose operational amplifier with 1MHz GBW, 0.7V/us slew rate, single-supply operation (3V to 32V), and low input bias current (45nA) in an 8-pin PDIP package.

المواصفات الرئيسية

القنوات	2 (Dual)
جهد الإمداد	3 V to 32 V (single), +/-1.5 to +/-16V (dual)
GBW	1.1 MHz
معدل الدوران	0.7 V/us
جهد إزاحة المدخلات	+/-3 mV typical, +/-7 mV max
تيار تحيز الإدخال	45 nA typical
تيار الإخراج	+/-20 mA typical
تيار التهدئة	0.7 mA per amplifier
CMRRR	85 dB typical
درجة حرارة التشغيل	0°C to +70°C
الحزمة	PDIP-8 (through-hole)

الميزات

Dual general-purpose op-amp with single-supply operation from 3V to 32V
Input common-mode range includes ground for single-supply applications

التطبيقات

General-purpose signal conditioning, filtering, and buffer circuits

مقدمة المنتج:LM358N مقدمة المنتج

The LM358N from Texas Instruments is a dual general-purpose operational amplifier from the industry-standard LM358 family. The device consists of two independent high-gain, internally frequency-compensated op-amps designed to operate from a single supply over a wide range of 3V to 32V (or +/-1.5V to +/-16V dual supplies). A key feature is that the input common-mode voltage range includes ground, allowing the amplifier to operate in single-supply applications without a negative supply. The output voltage can swing to within a few millivolts of ground when driving low-current loads. The 1.1MHz gain-bandwidth product and 0.7V/us slew rate are adequate for many general-purpose audio and instrumentation applications. The 45nA input bias current allows interfacing with high-impedance sources. The N suffix indicates the 8-pin PDIP through-hole package, the most common and cost-effective package for prototyping and low-volume production.

مبدأ العمل:LM358N مبدأ العمل

The LM358N operates as a dual single-supply operational amplifier. (1) Single-Supply Input Stage: The input stage uses a PNP differential pair with the emitters connected to VCC through a current source. This topology allows the input common-mode voltage to extend to ground (0V) because the PNP transistors remain active when both inputs are at ground potential. The maximum common-mode voltage is approximately VCC-1.5V. (2) Output Stage: The output uses a class-AB push-pull configuration with an NPN pull-up transistor and a passive (resistive) pull-down. The resistive pull-down allows the output to swing very close to ground (typically 5mV at low load current), but limits the output sink current compared to the source current. (3) Internal Compensation: A 30pF internal capacitor provides dominant-pole compensation, ensuring stability in unity-gain (voltage follower) configurations without external compensation components. The 1.1MHz GBW product is set by this compensation. (4) Low-Voltage Operation: The LM358 is specified to operate down to 3V single supply, making it suitable for 3.3V and 5V logic-powered systems.

وصف الدبوس:LM358N تعريف الدبوس ووظائفه

دبوس	الاسم	الوظيفة
1	OUT A	Output A
2	IN- A	Inverting input A
3	IN+ A	Non-inverting input A
4	GND/V-	Ground or negative supply
5	IN+ B	Non-inverting input B
6	IN- B	Inverting input B
7	OUT B	Output B
8	VCC/V+	Positive supply (3-32V)