Overview
The ADR435BRZ is a part of the ADR430/ADR431/ADR433/ADR434/ADR435 series, a family of XFET® voltage references developed by Analog Devices Inc. These voltage references are known for their low noise, high accuracy, and minimal temperature drift performance. The ADR435BRZ specifically offers an output voltage of 5.000 V and is designed to operate with lower current and supply voltage headroom compared to traditional buried Zener references. This component is particularly suited for applications requiring precise voltage referencing in various industrial and aerospace environments.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage | VOUT | 4.995 | 5.000 | 5.005 | V |
| Initial Accuracy | VOERR | -6 | - | 6 | mV |
| Temperature Coefficient | TCVO | - | - | 2 | ppm/°C |
| Supply Voltage Operating Range | VIN | 7.0 | - | 18 | V |
| Supply Voltage Headroom | VIN - VOUT | - | - | 2 | V |
| Output Current Capacity | IOUT | -20 | - | 30 | mA |
| Voltage Noise Density (1 kHz) | eN | - | 100 | - | nV/√Hz |
| Turn-On Settling Time | tR | - | 10 | - | μs |
| Long-Term Stability (1000 hours) | ΔVOUT | - | - | 40 | ppm |
| Ripple Rejection Ratio (1 kHz) | RRR | - | - | -70 | dB |
| Short Circuit to GND | ISC | - | - | 40 | mA |
Key Features
- Low Noise: The ADR435BRZ features ultralow noise performance, with a voltage noise density of 100 nV/√Hz at 1 kHz and 3.5 µV p-p from 0.1 Hz to 10.0 Hz.
- High Accuracy: It offers high output voltage accuracy, with initial accuracy as low as ±6 mV and a temperature coefficient of up to 2 ppm/°C.
- Low Temperature Drift: Utilizing Analog Devices' patented temperature drift curvature correction and XFET technology, the ADR435BRZ minimizes voltage change vs. temperature nonlinearity.
- Current Sink and Source Capability: The component can source up to 30 mA and sink up to -20 mA of output current.
- Trim Terminal: A trim terminal allows for adjusting the output voltage over a ±0.5% range without compromising performance.
- Wide Supply Voltage Range: Operates over a supply voltage range of 7.0 V to 18 V with a supply voltage headroom of 2 V.
- Package Options: Available in 8-lead MSOP and 8-lead narrow SOIC packages.
Applications
- Precision Data Acquisition Systems: Ideal for systems requiring high precision and low noise voltage references.
- High Resolution Data Converters: Suitable for applications where accurate voltage referencing is critical.
- Optical Control Circuits: Used in optical control systems that demand low noise and high accuracy voltage references.
- Precision Instruments: Applicable in various precision instruments where stable and accurate voltage references are essential.
- Defense and Aerospace: The ADR435-EP version is aerospace qualified and meets the AQEC standard, making it suitable for defense and aerospace applications.
Q & A
- What is the output voltage of the ADR435BRZ?
The output voltage of the ADR435BRZ is 5.000 V.
- What is the temperature coefficient of the ADR435BRZ?
The temperature coefficient of the ADR435BRZ is up to 2 ppm/°C.[
- What is the supply voltage operating range of the ADR435BRZ?
The supply voltage operating range is from 7.0 V to 18 V.[
- Does the ADR435BRZ require an external capacitor for operation?
No, the ADR435BRZ does not require an external capacitor for operation.[
- What is the maximum output current capacity of the ADR435BRZ?
The ADR435BRZ can source up to 30 mA and sink up to -20 mA of output current.[
- What are the package options available for the ADR435BRZ?
The ADR435BRZ is available in 8-lead MSOP and 8-lead narrow SOIC packages.[
- Is the ADR435BRZ suitable for aerospace applications?
Yes, the ADR435-EP version is aerospace qualified and meets the AQEC standard, making it suitable for defense and aerospace applications.[
- What is the ripple rejection ratio of the ADR435BRZ?
The ripple rejection ratio of the ADR435BRZ is -70 dB at 1 kHz.[
- What is the long-term stability of the ADR435BRZ?
The long-term stability of the ADR435BRZ is 40 ppm over 1000 hours.[
- Can the output voltage of the ADR435BRZ be trimmed?
Yes, the output voltage of the ADR435BRZ can be adjusted over a ±0.5% range using the trim terminal.[
