Overview
The ADR3425ARJZ-R7 is a 2.5V precision voltage reference from Analog Devices (ADI) , belonging to the ADR3425 series of precision reference products. This device employs a low-power CMOS architecture and is designed for applications such as high-precision data acquisition, ADC/DAC, industrial measurement, portable instruments, and embedded analog signal chains , providing a stable 2.5V reference voltage for the system.
The ADR3425ARJZ-R7 features low temperature drift, low output noise, and low operating current, enabling it to maintain a stable reference output over a wide range of power supply conditions. The device uses a small SOT-23-8 package and supports low operating voltages, which is beneficial for achieving high-precision reference voltages in designs with limited PCB space and system power consumption.
Core parameters
| Parameter | Value |
| Product Type | Precision voltage reference |
| Manufacturer | Analog Devices |
| Output voltage | 2.5V |
| Output type | Fixed output |
| initial accuracy | High precision |
| Temperature coefficient | Low temperature drift |
| Operating voltage | Low voltage power supply |
| Output current capability | Suitable for precision analog loads |
| Operating temperature range | -40°C to +125°C |
| Encapsulation type | SOT-23-8 |
| Packaging | Tape & Reel |
| Model suffix | R7 |
| Environmental standards | RoHS compliant |
Features
Stable 2.5V precision reference output
ADR3425ARJZ-R7 provides fixed The 2.5V output can be used as a reference voltage for ADCs, DACs, comparators, and other precision analog circuits. A stable reference source reduces the impact of power supply fluctuations on data conversion results, improving the consistency of system measurement and control.
Low temperature drift
In precision data acquisition systems, the drift of the reference voltage caused by changes in ambient temperature directly affects measurement accuracy. The ADR3425ARJZ-R7 is optimized for temperature stability and is suitable for industrial and instrumentation equipment that requires high measurement consistency under varying ambient temperatures.
Low power design
The ADR3425 series employs a low-power design philosophy, reducing the impact of the reference circuitry itself on the system power budget. Therefore, this device is suitable not only for industrial equipment but also for battery-powered data acquisition terminals, portable test instruments, and low-power embedded systems.
Miniaturized packaging
The ADR3425ARJZ-R7 uses an SOT-23-8 package to provide a precise reference voltage function within a limited PCB space. For multi-channel analog acquisition , power management, and high-density embedded devices, it can reduce the board space occupied by the reference circuitry.
Suitable for high-resolution data conversion
The effective accuracy of ADCs and DACs depends not only on the converter’s own parameters but also on reference voltage stability, noise, and temperature drift. The ADR3425ARJZ-R7 can serve as an independent precision reference source, providing a stable 2.5V reference node for high-resolution data conversion systems.
Typical application scenarios
High-precision ADC system
It can be used as an external reference voltage for ADCs, providing a stable reference source for industrial data acquisition, sensor interfaces, and test instruments.
DAC and Analog Control
In high-precision DAC applications, a stable reference voltage helps improve the consistency of the output voltage and analog control signal.
Industrial measuring equipment
Suitable for pressure, temperature, flow and other sensor signal acquisition equipment, providing a stable reference for analog signal chains.
Portable instruments
Its low power consumption and small package make it suitable for handheld test equipment, battery-powered instruments, and portable data logging systems.
Embedded systems
It can be used as an ADC/DAC reference circuit in MCU, DSP or other processor systems, and can be used in conjunction with sensors and analog front-ends.
Comparative Advantage Analysis
| Performance indicators | ADR3425ARJZ-R7 | Normal voltage reference scheme |
| Output voltage | 2.5V | Depending on the plan |
| Temperature stability | excellent | generally |
| Power consumption | Low | Possibly high |
| Package size | Small SOT-23-8 | Depending on the device |
| ADC/DAC compatibility | high | generally |
| PCB integration | high | Depending on the plan |
The main application value of the ADR3425ARJZ-R7 lies in its stable 2.5V output, low power consumption, small package, and precision analog signal chain adaptation capabilities , making it suitable for industrial and embedded systems that require an independent reference voltage.
Manufacturer Profile: Analog Devices
Analog Devices (ADI) is a leading global manufacturer of high-performance analog and mixed-signal semiconductors, with products covering data converters, precision amplifiers, power management, interfaces, voltage references, and industrial signal chains.
The ADR3425ARJZ-R7 belongs to ADI’s precision voltage reference product family and can be used to build highly stable analog reference voltage systems to meet the reference source requirements of industrial measurement, data acquisition and embedded control equipment.
Why choose ADR3425ARJZ-R7?
● Provides a stable 2.5V precision reference outpu
● Suitable for high-precision ADC and DAC applications
● Low temperature drift, improving measurement stability
● Low power consumption design, suitable for portable devices
● Small SOT-23-8 package, saving PCB space
● Suitable for industrial measurement and embedded analog systems
● Original ADI product, suitable for precision analog signal chain design
Frequently Asked Questions (FAQ)
Q1: What is the output voltage of ADR3425ARJZ-R7?
The ADR3425ARJZ-R7 is a 2.5V precision voltage reference that can be used in ADCs, DACs, and other analog circuits that require a stable reference voltage.
Q2: Can the ADR3425ARJZ-R7 be used as an ADC reference voltage?
Yes. A stable reference voltage is crucial for the conversion accuracy of an ADC. The ADR3425ARJZ-R7 can be used in data acquisition and measurement systems that require an independent 2.5V reference source.
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