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ADR421BR

Name: ADR421BR
Rating: 4.7 (12 reviews)

IC VREF SERIES 0.04% 8SOIC

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製造商。部分 #ADR421BR
包 SOP8
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規格

Package	Tube
Series	XFET®
ProductStatus	Obsolete
ReferenceType	Series
OutputType	Fixed
Voltage-Output(Min/Fixed)	2.5V
Current-Output	10 mA
Tolerance	±0.04%
TemperatureCoefficient	3ppm/°C
Noise-01Hzto10Hz	1.75µVp-p
Voltage-Input	4.5V ~ 18V
Current-Supply	600µA
OperatingTemperature	-40°C ~ 125°C (TA)
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

概述

Description

ADR421BR is a fixed, low-noise precision voltage reference from Analog Devices (ADR421 family). It provides a stable reference voltage for precision ADCs/DACs, instrumentation, and test equipment. The BR suffix indicates a specific package/variant; check the datasheet for exact pinout and packaging.
Key points:
- Fixed reference with tight initial accuracy and low temperature drift.
- Low output noise suitable for high-precision sensing.
- Good line/load regulation with modest quiescent current.
- Requires proper decoupling: place recommended capacitors close to V+ and Vout as per the datasheet.
Typical use:
- Calibrating ADC/DAC front-ends, instrumentation amplifiers, and precision test gear.
- Connect V+, Vout, and GND per the datasheet, and add the recommended decoupling to minimize noise.
For exact nominal voltage, tolerance, tempco, current, and pinout, consult the ADR421BR datasheet and Analog Devices product page.

Features

I don’t have the exact numbers here, but ADR421BR is Analog Devices’ precision voltage reference. Typical features include:
- High accuracy and tight initial tolerance
- Low output noise and low drift (low temperature coefficient)
- Excellent line and load regulation
- Low quiescent current
- Wide operating temperature range
- Long-term stability
- Stable with various output capacitors and loads
- Pb-free/RoHS-compliant packaging
- Available in small surface-mount packages (for automated assembly)
For precise electrical specs (voltage, temperature coefficient, noise, currents, and package options), please consult the ADR421BR datasheet.

Package

ADR421BR comes in an 8‑lead plastic surface‑mount package, i.e., an SOIC‑8 (Small Outline) package.

Pinout

- Pin count: 8 pins
- Function: Precision fixed-voltage reference IC (provides a stable reference voltage for ADCs/DACs and other analog circuits). BR indicates the package type (8-lead MSOP/SOIC).

Manufacturer

Analog Devices, Inc. (ADI) is the manufacturer. It is an American multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing integrated circuits.

Application

Applications of ADR421BR (precision voltage reference):
- Stable reference for ADCs/DACs in data acquisition and instrumentation
- Calibration source in test and metrology equipment
- High-accuracy reference for instrumentation and power-supply regulation
- Medical instrumentation and portable/battery-powered devices
- Sensor front-ends and other low-noise analog circuits

Equivalent

Direct equivalents depend on specs; ADR421BR is a 2.5V precision voltage reference. Cross candidates: Analog Devices ADR4520/4522/4525; Texas Instruments REF5020/REF5025 (2.5V, low drift). Other vendors offer similar 2.5V references. For a precise cross, share the datasheet or your required tolerance, tempco, current, and package.