Overview
The ADR435TRZ-EP is a high-performance XFET® voltage reference from Analog Devices Inc., designed to offer low noise, high accuracy, and minimal temperature drift. This component is part of the ADR430/ADR431/ADR433/ADR434/ADR435 series and is particularly suited for applications requiring precise voltage referencing. The ADR435TRZ-EP supports defense and aerospace applications, adhering to the AQEC (Aerospace Qualified Electronic Component) standard, and operates over a military temperature range of −55°C to +125°C.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage | VO | 4.995 | 5.000 | 5.005 | V |
| Initial Accuracy | VOERR | ±1.5 mV | |||
| Temperature Coefficient | TCVO | 3 ppm/°C | |||
| Line Regulation | ΔVO/ΔVIN | 20 ppm/V | |||
| Load Regulation | ΔVO/ΔIL | 15 ppm/mA | |||
| Quiescent Current | IIN | 595 | 800 | µA | |
| Voltage Noise (0.1 Hz to 10 Hz) | eN p-p | 6.25 µV p-p | |||
| Voltage Noise Density at 1 kHz | eN | 100 nV/√Hz | |||
| Turn On Settling Time | tR | 10 µs | |||
| Long-Term Stability (1000 hours) | ∆VO | 40 ppm | |||
| Supply Voltage Operating Range | VIN | 6.1 | 18 | V | |
| Supply Voltage Headroom | VIN - VO | 2 V |
Key Features
- Low Noise and High Accuracy: The ADR435TRZ-EP features ultralow noise and high accuracy, making it ideal for precision applications.
- Low Temperature Drift: Utilizing Analog Devices' patented temperature drift curvature correction and XFET technology, this component minimizes voltage change vs. temperature nonlinearity.
- Current Source and Sink Capability: The ADR435TRZ-EP can source up to +10 mA and sink up to −10 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 6.1 V to 18 V with a low supply voltage headroom of 2 V.
- Military Temperature Range: Specified over a military temperature range of −55°C to +125°C, making it suitable for defense and aerospace applications.
- 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.
- High Resolution Data Converters: Suitable for applications needing accurate voltage references.
- Optical Control Circuits: Used in optical systems where precise voltage control is crucial.
- Precision Instruments: Applicable in various precision instruments that require stable and accurate voltage references.
- Defense and Aerospace: Meets the AQEC standard and is designed for use in defense and aerospace applications.
Q & A
- What is the output voltage of the ADR435TRZ-EP?
The output voltage of the ADR435TRZ-EP is 5.000 V with an initial accuracy of ±1.5 mV. - What is the temperature coefficient of the ADR435TRZ-EP?
The temperature coefficient (TCVO) is 3 ppm/°C. - What is the maximum output current of the ADR435TRZ-EP?
The ADR435TRZ-EP can source up to +10 mA and sink up to −10 mA of output current. - What is the supply voltage operating range of the ADR435TRZ-EP?
The supply voltage operating range is from 6.1 V to 18 V. - What are the package options for the ADR435TRZ-EP?
The ADR435TRZ-EP is available in 8-lead MSOP and 8-lead narrow SOIC packages. - Is the ADR435TRZ-EP suitable for defense and aerospace applications?
Yes, it supports defense and aerospace applications and meets the AQEC standard. - What is the quiescent current of the ADR435TRZ-EP?
The quiescent current (IIN) is typically 800 µA. - How does the ADR435TRZ-EP handle voltage noise?
The ADR435TRZ-EP features ultralow noise with a voltage noise density of 100 nV/√Hz at 1 kHz and 6.25 µV p-p from 0.1 Hz to 10 Hz. - Can the output voltage of the ADR435TRZ-EP be adjusted?
Yes, the output voltage can be adjusted over a ±0.5% range using the trim terminal. - What is the long-term stability of the ADR435TRZ-EP?
The long-term stability is specified as 40 ppm over 1000 hours.
