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MAX921ESA+

Name: MAX921ESA+
Rating: 4.7 (12 reviews)

IC COMPARATOR SINGLE-SUPP 8-SOIC

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製造商。部分 #MAX921ESA+
包 SOIC-8
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規格

Package	Tube,Tube
ProductStatus	Obsolete
Type	with Voltage Reference
NumberofElements	1
OutputType	CMOS, TTL
Voltage-SupplySingle/Dual(±)	2.5V ~ 11V, ±1.25V ~ 5.5V
Voltage-InputOffset(Max)	10mV @ 5V
Current-Output(Typ)	50mA
Current-Quiescent(Max)	5µA
CMRRPSRR(Typ)	80dB CMRR, 80dB PSRR
PropagationDelay(Max)	12µs
Hysteresis	50mV
OperatingTemperature	-40°C ~ 85°C
Package/Case	8-SOIC (0.154, 3.90mm Width)
MountingType	Surface Mount

概述

Description

The MAX921ESA+ is a high-speed voltage comparator designed by Maxim Integrated, featuring a fast response time and low power consumption. It operates with a supply voltage range of 4.5V to 36V, making it suitable for a variety of applications, including analog-to-digital converters and signal conditioning circuits.
Key features include a propagation delay of about 18 ns, a wide input common-mode voltage range, and a low input offset voltage, which ensures high accuracy. The device is available in an 8-pin DIP package, facilitating easy integration into circuit boards.
The MAX921ESA+ is ideal for applications requiring high-speed comparisons, such as pulse-width modulation, zero-crossing detection, and timing circuits. Its robust design and versatile functionality make it a popular choice for engineers looking to enhance signal processing in electronic systems.

Features

The MAX921ESA+ is a high-speed comparator designed for applications requiring fast response times and low power consumption. Key features include:
1. High Speed: It can operate with a propagation delay as low as 5 ns, making it suitable for high-frequency applications.
2. Low Supply Voltage: Operates with a supply range from 3V to 12V.
3. Low Power Consumption: Consumes only 1.5 mW at a 5V supply.
4. Open-Collector Output: Allows for wired-AND configurations, enhancing flexibility in design.
5. High Input Impedance: Reduces loading on the input signal source.
6. Wide Common-Mode Range: Supports input voltages from -0.3V to V+ - 2V.
7. Temperature Range: Rated for automotive and industrial applications, with a -40°C to +125°C operating temperature range.
These features make the MAX921ESA+ ideal for various applications, including signal processing, data acquisition, and high-speed analog-to-digital conversions.

Package

The MAX921ESA+ is housed in an 8-pin DIP (Dual In-line Package) format.

Pinout

The MAX921ESA+ is an integrated circuit with a pin count of 8. It functions as a high-speed, single-supply comparator with an open-drain output. The key functions of its pins are as follows:
1. VCC (Pin 1): Power supply input (typically 2.7V to 5.5V).
2. IN+ (Pin 2): Non-inverting input for the comparator.
3. IN- (Pin 3): Inverting input for the comparator.
4. GND (Pin 4): Ground reference.
5. OUT (Pin 5): Open-drain output, requires an external pull-up resistor to function properly.
6. COMP (Pin 6): Compensation pin to improve response time.
7. RST (Pin 7): Reset pin; used to reset the output state.
8. NC (Pin 8): No connection; not used.
The device is designed for high-speed applications and provides fast response times, making it suitable for various signal processing tasks.

Manufacturer

The MAX921ESA+ is manufactured by Analog Devices, Inc., specifically under their Maxim Integrated product line. Analog Devices is a global semiconductor company that specializes in data conversion, signal processing, and amplifying technologies. Founded in 1965, the company is known for developing high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. They serve a wide range of industries, including communications, automotive, healthcare, and industrial automation, with a focus on providing innovative solutions for complex electronic applications.

Application

The MAX921ESA+ is a high-speed comparator used in various applications, including data communication, signal conditioning, and analog-to-digital conversion. It is ideal for high-frequency signal processing, video signal enhancement, and threshold detection in automated systems. Other uses include line sensing, pulse-width modulation, and interfacing in consumer electronics and industrial equipment.

Equivalent

Equivalent products to the MAX921ESA+ chip include the TLV2541, LTC6101, and AD8052. These alternatives provide similar functionality in terms of high-speed comparators and operational amplifiers. Always verify specifications such as voltage range, speed, and package type to ensure compatibility with your application.