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MAX44248ASA+

ADIMAX44248ASA+

Analog Devices Inc./Maxim Integrated
Zero-Drift Amplifier 2 Circuit Rail-to-Rail 8-SOIC
Active3,254 in stock
Datasheet Digi-Key Compare Prices

Overview

The MAX44248ASA+ is a high-precision, low-power, dual-channel zero-drift operational amplifier designed for applications requiring minimal offset and long-term stability. Operating from a wide 2.7V to 36V supply range, it consumes only 90uA per channel while providing rail-to-rail outputs and integrated EMI suppression. This combination of high voltage capability and low power makes it ideal for precision industrial and medical sensing.

Why Choose This Part

The primary advantage is the zero-drift architecture which achieves near-zero DC offset and drift over temperature and time. Its wide supply range (up to 36V) is rare for such low-power zero-drift parts, and the integrated EMI filters provide robust protection against high-frequency interference in harsh environments.

Applications

Weight Scales and Strain Gauges
Utilizes zero-drift technology to maintain accuracy in bridge-sensor measurements by eliminating 1/f noise and offset voltage drift over time.
4-20mA Transmitter Interfaces
High voltage supply support up to 36V allows for direct integration into industrial current loop signaling environments.
Portable Medical Instrumentation
Ultra-low power consumption extends battery life in handheld diagnostic devices and patient monitoring systems.
PLC Analog Input Modules
Provides high-impedance, low-noise signal conditioning for analog-to-digital conversion in programmable logic controllers.

Key Specifications

Slew Rate 0.7V/us
Output Type Rail-to-Rail
Mounting Type Surface Mount
Amplifier Type Zero-Drift
Package / Case 8-SOIC (0.154", 3.90mm Width)
Current - Supply 90uA (x2 Channels)
Number of Circuits 2
Current - Input Bias 150 pA
Operating Temperature -40degC ~ 125degC
Gain Bandwidth Product 1 MHz
Voltage - Input Offset 2 uV
Supplier Device Package 8-SOIC
Current - Output / Channel 40 mA
Voltage - Supply Span (Max) 36 V
Voltage - Supply Span (Min) 2.7 V

Getting Started

When designing with the MAX44248, ensure a low-ESR ceramic bypass capacitor (0.1uF) is placed as close to the VDD pin as possible. Evaluation of this family can be performed using the MAX44248EVKIT, which provides a pre-configured layout to test the amplifier's precision performance. For high-impedance sensor interfaces, use guard rings around the input traces to prevent leakage currents on the PCB.

MAX44248 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
MAX44248ASA+ (this part) SOIC-8 3,254
MAX44248AUA+T TSSOP-8 18,976
MAX44248AUA+ TSSOP-8 1,832

Categories

Analog ICs