company blog about Supply Chip LT1490ACDD Operational Amplifier (Dual Channel, Micro-Power, Rail-to-Rail Input and Output)

Mingjiada Electronics supplies the high-performance LT1490ACDD operational amplifier, a dual-channel, low-power, rail-to-rail input and output precision amplifier designed for low-power, high-precision signal conditioning applications. The LT1490ACDD features ultra-low power consumption, a wide operating voltage range, and high drive capability, making it ideal for portable devices, sensor interfaces, and industrial control systems.

LT1490ACDD Product Description
The LT1490ACDD is a dual-channel operational amplifier housed in a DFN-8 package, supporting single-supply operation from 2V to 44V or dual-supply operation from ±1V to ±22V. Each amplifier consumes only 40μA of quiescent current, making it a true low-power device. The LT1490ACDD features rail-to-rail input and output capability, maximising signal dynamic range, making it ideal for low-voltage system designs. Additionally, the LT1490ACDD has Over-The-Top® input characteristics, allowing the input signal to exceed the supply voltage (up to 44V), making it suitable for high common-mode voltage detection applications.

LT1490ACDD Key Features
Ultra-low power design: Each amplifier in the LT1490ACDD consumes only 40μA of quiescent current, making it suitable for battery-powered systems.
Wide voltage range: The LT1490ACDD supports single-supply operation from 2V to 44V or dual-supply operation from ±1V to ±22V.
Rail-to-rail input/output: Maximises signal swing, enhancing the signal-to-noise ratio in low-voltage systems.
High Drive Capability: The LT1490ACDD delivers 25mA per channel, capable of driving a 10,000pF capacitive load.
High Precision: The LT1490ACDD features an input offset voltage of ≤500μV and a common-mode rejection ratio (CMRR) of up to 98dB.
Reverse battery protection: The LT1490ACDD can withstand a reverse voltage of 18V, enhancing system reliability.

LT1490ACDD Key Parameters
Number of channels: 2
Gain-bandwidth product (GBP): 200kHz
Slew rate (SR): 60mV/μs
Input offset voltage (Vos): ≤500μV
Input bias current (Ib): 1 nA
Quiescent current (Iq): 40 μA per channel
Operating temperature: 0°C to +70°C (commercial grade)
Package: DFN-8 (3 mm × 3 mm)

LT1490ACDD Typical Applications
The LT1490ACDD is widely used in the following applications:
Battery/solar-powered systems: Ultra-low power consumption extends device runtime.
Sensor signal conditioning: Such as current detection and temperature sensor amplification.
4-20mA transmitters: Industrial process control.
Portable medical devices: Low power consumption and high-precision signal processing.
Active filters: Micro-power design reduces system energy consumption.

LT1490ACDD PIN Cconfiguration

Summary
Mingjiada supplies the LT1490ACDD, a high-performance, low-power rail-to-rail operational amplifier suitable for various precision signal processing applications. The LT1490ACDD, with its wide voltage range, high drive capability, and low power consumption, is an ideal choice for industrial, medical, and consumer electronics applications.

For purchasing the LT1490ACDD, please contact Mingjiada Electronics for genuine products and technical support.