Common Mode Semiconductor launches GM7400, a 40V, 3ppm/℃ low-noise, high-precision reference voltage that can replace ADI's ADR01 and other products

『New Product Release』 Common Mode Semiconductor launches 40V, 3ppm/℃ low noise, high precision reference voltage GM7400, which can replace ADI's ADR01 and other products

Common Mode Semiconductor introduces the 40V, 3ppm/℃ low noise, high precision reference voltage GM7400 . The GM7400 is a precision reference voltage source that combines robust operating characteristics with extremely low drift and low noise. Using advanced curvature compensation, this bandgap reference voltage source can achieve 3ppm/°C drift and predictable temperature characteristics, as well as ±0.04% initial voltage accuracy.

The device is ideal for applications such as high-resolution data acquisition, instrumentation for process control, medical equipment, and automotive battery monitoring.

GM7400 Series Product Introduction

The GM7400 buffered output supports ±10mA output drive (at low output impedance) and precise load regulation. The TEMP pin can be used to detect device temperature. Meanwhile, the TRIM pin is used to fine-tune the output voltage. The device is safe in the case of reverse battery connection and has built-in output short-circuit current protection and overload thermal shutdown.

The GM7400 is rated for operation over the temperature range of –55°C to 125°C.

The device is available in 8-pin MSOP and 8-pin SO packages.

The GM7400 series products can replace ADI's ADR01/2/3/6, ADR441/3/5, ADR421/3/5, REF01/2, LT6657, AD780, AD580, AD581, AD586 and other series products, and can also replace TI's REF5025/30/50/10 and other series products.

Pin Configuration

Figure 1 8-pin MSOP

Figure 2 8-pin SOIC

Features

• Low drift 1.5ppm/°C (typ), 3ppm/°C (max)

• Low noise 10µVP-P (0.1Hz to 10Hz)

• Initial accuracy ±0.04%

• 0.1μF external capacitor

• Wide supply voltage range (3.5V to 40V)

• Output current +/-10mA

• Input regulation: 15ppm/V

• Load regulation: 5ppm/mA

• Output voltage options available: 10V, 5V, 3V and 2.5V

• Temperature range: –55°C to 125°C

• Main Applications

• High-resolution data acquisition

• Instrumentation and Process Control

• Medical Devices

• Car Battery Monitoring

The GM7400 is a high precision, low drift 10V, 5V, 3V and 2.5V voltage reference available in a variety of packages. These devices are based on a standard bandgap voltage reference. The bandgap cell generates a bandgap voltage that remains nearly constant over temperature.

Through the internal operational amplifier and feedback network, VOUT can be accurately set to 10 V, 5 V, 3 V and 2.5 V. Precision trimming of resistors and other proprietary circuit techniques are used to further improve the device's initial accuracy, temperature curve and drift performance.

The PTAT voltage is provided directly from the bandgap voltage at the TEMP pin without buffering. Since this voltage output has a stable 1.96 mV/°C temperature coefficient, users can estimate the temperature change of the device by simply monitoring the voltage change at this pin.

GM7400 series and its comparable products

GM7400 Series Product Ordering Guide