ADCMP391ARZ

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ADCMP391ARZ

IC COMPARATOR QUAD RRO 8SOIC

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Specifications

Supplier Analog Devices Inc.
Package Tube
ProductStatus Active
Type General Purpose
NumberofElements 1
OutputType Rail-to-Rail
Voltage-SupplySingle/Dual(±) 2.3V ~ 5.5V
Voltage-InputOffset(Max) 2.5mV
Current-InputBias(Max) 0.03µA
Current-Quiescent(Max) 24.7µA
CMRRPSRR(Typ) 74dB CMRR, 80dB PSRR
PropagationDelay(Max) 4.2µs
Hysteresis 4mV
OperatingTemperature -40°C ~ 125°C
Package/Case 8-SOIC (0.154, 3.90mm Width)
MountingType Surface Mount

Overview

Description

ADCMP391ARZ is a high-speed voltage comparator from Analog Devices (ADCMP39x family). It compares two analog inputs and outputs a logic-level signal indicating which input is higher, making it suitable for fast thresholding, zero-crossing detection, PWM generation, clock/data recovery, and ADC front-end timing.
Typical strengths include single-supply operation, fast propagation delay, low input bias current, and a logic-level output compatible with TTL/CMOS interfaces. It features a broad input common-mode range and is designed for rugged performance in high-speed analog signal conditioning.
The ARZ suffix denotes a RoHS-compliant package (usually an 8-pin device such as SOIC/MSOP) in tape-and-reel form. For exact electrical specs, input/output configurations, package details, and recommended operating conditions, refer to the official ADCMP391ARZ datasheet.

Features

Here are the key features of the ADCMP391ARZ (Analog Devices):
- High-speed current-sense comparator
- Single-supply operation: 2.7 V to 5.5 V
- Input common-mode range includes the negative rail
- Low input offset with fast propagation delay
- Built-in hysteresis for noise immunity
- Push-pull output (TTL/CMOS-compatible)
- Low power consumption
- ESD protection and general input/output protection
- Wide operating temperature range: -40°C to 125°C
- Package: 8-lead SOIC (ARZ) with RoHS compliance
Note: For exact electrical characteristics (offset, delay, hysteresis, etc.) and recommended operating conditions, please consult the official datasheet.

Package

ADCMP391ARZ comes in an 8‑lead Small Outline Integrated Circuit (SOIC) package.

Pinout

- Pin count: 8 pins (8‑pin package, ARZ)
- Function: Dual high‑speed comparator (two independent comparator channels) with digital outputs (typically open‑collector/open‑drain) for level/threshold detection.

Manufacturer

- Manufacturer: Analog Devices, Inc. (ADI).
- What kind of company: A multinational American semiconductor company that designs and manufactures analog, mixed-signal, and DSP (digital signal processing) integrated circuits.

Application

- High-speed threshold detection for switching regulators (SMPS) and motor drives
- Current-sense/overcurrent protection in power supplies
- Zero-crossing and line-synchronization in AC/DC adapters
- PWM timing and triangle-wave comparison in controllers
- Data demodulation and fast edge-detection in high-speed interfaces
- Battery management and protection circuits in portable equipment

Equivalent

Equivalents depend on packaging and specs. Within Analog Devices, the closest substitutes are other ADCMP family parts (e.g., ADCMP390/391/392/393/394 with similar speed and output type). For cross-vendor equivalents (TI, OnSemi, NXP), please specify required specs (supply, speed, output type, package) for an exact cross-reference.

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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