会社ブログについて Mingjiada Supply [ADI] LTC2057 Zero-Drift Operational Amplifier, Enabling High-Voltage Precision Signal Conditioning

With the continuous advancement of industrial automation, precision instruments, medical electronics, data acquisition and high-voltage test equipment, the demands placed on operational amplifiers within the signal chain are becoming increasingly stringent: they must support high-voltage power supplies whilst offering low noise, low offset and zero-drift characteristics. Shenzhen Mingjiada Electronics Co., Ltd. – with many years of experience in the electronic components sector – has long supplied the [ADI] LTC2057 series of high-voltage, low-noise, zero-drift operational amplifiers. Designed for applications such as precision measurement, industrial control, medical instrumentation and high-dynamic-range data acquisition, these devices provide high-precision, low-drift solutions for low-level signal conditioning.

LTC2057 Series: The Ideal Choice for High-Voltage Precision Signal Chains

The LTC2057 series is a range of zero-drift operational amplifiers launched by ADI, comprising versions such as the LTC2057 and LTC2057HV. The LTC2057 supports a supply voltage range of 4.75 V to 60 V, whilst the LTC2057HV supports even higher voltages (up to 100 V; please refer to the official data sheet for specific details), making it suitable for industrial and instrumentation applications requiring high-voltage power supplies.

This series employs a zero-drift architecture which, by continuously correcting the input offset voltage, effectively eliminates the effects of offset drift and 1/f noise, maintaining high DC accuracy over a wide temperature range. At the same time, the LTC2057 series offers low-noise performance, making it suitable for high-impedance, low-signal-level applications such as thermocouples, bridge sensors and strain gauges.

Key Features and Benefits

Wide supply voltage range: The LTC2057 supports 4.75 V to 60 V; the LTC2057HV supports higher voltage versions to meet the demands of high-voltage precision applications.

Zero-drift architecture: Ultra-low offset voltage and offset drift, with excellent long-term stability, making it suitable for precision DC measurements.

Low noise: Noise of approximately 1.2 µVp-p from 0.1 Hz to 10 Hz, with a voltage noise density of approximately 11 nV/√Hz at 1 kHz.

High accuracy: High common-mode rejection ratio (CMRR) and power-supply rejection ratio (PSRR) help to improve system measurement accuracy.

Rail-to-rail output: Wide output dynamic range facilitates low-voltage signal processing in single-supply applications.

Low power consumption: Supply current of approximately 1.2 mA, suitable for power-sensitive portable and industrial equipment.

Wide operating temperature range: Supports an operating temperature range of –40 °C to 125 °C, suitable for harsh environments.

Compact packaging: Available in package types such as MSOP-8 and SO-8, helping to save PCB space.

Mingjiada Electronics [ADI] LTC2057 series zero-drift operational amplifiers, including but not limited to the following:

LTC2057HDD

LTC2057HMS8

LTC2057HVHDD

LTC2057HVHMS

LTC2057HVHS8

LTC2057HVIDD

LTC2057HVIS8

LTC2057IDD

LTC2057IMS

LTC2057IS8

LTC2057IMS8

The LTC2057 series is suitable for applications with high requirements for accuracy, noise and voltage range, including:

High-precision instrumentation and data acquisition systems

Industrial process control and field transmitters

Signal conditioning for bridge sensors, strain gauges, thermocouples and RTDs

Medical diagnostic and patient monitoring equipment

Battery testing, power supply monitoring and high-voltage current detection

Photodiode pre-amplification and high-impedance sensor interfacing

High-voltage-side signal acquisition and precision analogue front-ends

With its advantages of high voltage, low noise, zero drift and high precision, the ADI LTC2057 series is becoming a key choice for high-voltage precision signal chain designs. Mingjiada Electronics will continue to leverage its supply chain strengths to provide stable and flexible component supply services to customers worldwide. Please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further product information and quotations regarding the LTC2057 series.