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Product Detailed Parameters
- Description：IC VREF SERIES PREC 2.5V 8DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tray
- Output Type：-
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：-
- Operating Temperature：-
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-PDIP
- Grade：-
- Qualification：-
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Overview
The REF43GP is a low power precision voltage reference providing a stable 2.5 V output, suitable for 8-, 10- and 12-bit data acquisition systems. It features an initial accuracy of 0.10% and a temperature coefficient of 25 ppm/°C. The device operates within a supply voltage range of 2.7 V to 40 V and draws a maximum quiescent current of 450 µA. It supports a load current up to 20 mA and functions reliably across a temperature range of -40°C to +85°C.
Feature Summary
- Utilizes zener-zap trimming for both output voltage and temperature coefficient to ensure tight tolerances.
- Incorporates a unique curvature correction circuit to reduce thermal curvature characteristic of bandgap references.
- Provides a stable 2.5 V output independent of variations in supply voltage, load conditions, or ambient temperature.
Applications
- Reference level for 8-bit data acquisition systems
- Reference level for 10-bit data acquisition systems
- Reference level for 12-bit data acquisition systems
Procurement Notes
Verify the specific package suffix against the manufacturer's ordering guide to confirm physical dimensions and pinout compatibility. Ensure that the selected component meets the required initial accuracy and temperature coefficient specifications for the intended application environment. Cross-reference the datasheet revision history to confirm the availability of updated electrical characteristics and absolute maximum ratings before finalizing procurement decisions.
Selection Notes
Select this component when a fixed 2.5 V precision reference with low power consumption is required for moderate resolution data acquisition. Consider the 8-pin plastic DIP package for through-hole mounting requirements. Evaluate the 25 ppm/°C temperature coefficient against system drift requirements. Verify that the 450 µA quiescent current aligns with power budget constraints compared to higher performance alternatives.
Part Context
The REF43 series consists of low power precision voltage references designed for general-purpose applications requiring a stable known voltage. The REF43 family includes various packages such as hermetic DIP, plastic DIP, and SOIC options. This specific part belongs to the standard REF43 line, distinct from the lower noise ADR43 series.
Replacement Considerations
REF43FZ
FAQ
How does the REF43 achieve its stability?
It uses zener-zap trimming of both output voltage and temperature coefficient, along with a curvature correction circuit to minimize thermal drift.
What is the operating temperature range?
The REF43GP operates within a temperature range of -40°C to +85°C.
