Overview
The ADR3433ARJZ-R2 is a micropower, high-accuracy voltage reference produced by Analog Devices Inc. This three-terminal voltage reference is designed for precision voltage regulation in various applications. It features low power consumption, high precision, and low output noise, making it suitable for critical signal processing systems. The device is part of the ADR3412/ADR3420/ADR3425/ADR3430/ADR3433/ADR3440/ADR3450 family, which are known for their low cost and high reliability.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | VIN = 3.5 V to 5.5 V, IL = 0 mA, TA = 25°C | 3.2967 | 3.30 | 3.3033 | V |
| Initial Accuracy | VOERR | VIN = 3.5 V to 5.5 V, IL = 0 mA, TA = 25°C | ±0.1% | ±3.3 mV | ||
| Temperature Coefficient | TCVOUT | −40°C ≤ TA ≤ +125°C | 2.5 | 8 | ppm/°C | |
| Line Regulation | ΔVO/ΔVIN | VIN = 2.7 V to 5.5 V, −40°C ≤ TA ≤ +125°C | 5 | 120 | ppm/V | |
| Load Regulation | ΔVO/ΔIL | Sourcing IL = 0 mA to 10 mA, VIN = 3.0 V, −40°C ≤ TA ≤ +125°C | 10 | 30 | ppm/mA | |
| Output Current Capacity | IL | Sourcing VIN = 3.0 V to 5.5 V | 10 mA | |||
| Ripple Rejection Ratio | RRR | fIN = 60 Hz | −60 dB | |||
| Long-term Stability | ΔVOUT_LTD | 1000 hours at 50°C | 30 ppm | |||
| Turn-on Settling Time | tR | CIN = 0.1 μF, CL = 0.1 μF, RLoad = 1 kΩ | 800 μs |
Key Features
- High Accuracy: The ADR3433ARJZ-R2 features ±0.1% initial accuracy and a low temperature coefficient of 2.5 ppm/°C to 8 ppm/°C, ensuring stable output voltage across a wide temperature range.
- Low Power Consumption: The device operates with a maximum current of 100 μA, making it suitable for low-power applications.
- Low Output Noise: It has low output voltage noise, with 25 μV p-p from 0.1 Hz to 10 Hz and 46 μV rms from 10 Hz to 10 kHz, which helps maintain signal integrity.
- Compact Package: Available in a 6-lead SOT-23 package, which is small and convenient for space-constrained designs.[
- Enable Pin: Features an enable pin for shutdown, with a shutdown voltage of 0 V to 0.7 V and an enable voltage of VIN × 0.85 to VIN.[
Applications
The ADR3433ARJZ-R2 is versatile and can be used in a variety of applications, including:
- Precision Voltage Regulation: Ideal for systems requiring stable and accurate voltage references.
- Critical Signal Processing Systems: Suitable for applications where low noise and high accuracy are crucial.
- Low-Power Devices: Perfect for battery-powered devices or other low-power systems.
- Industrial and Automotive Systems: Operates over the industrial temperature range of −40°C to +125°C, making it suitable for harsh environments.
Q & A
- What is the output voltage of the ADR3433ARJZ-R2? The output voltage of the ADR3433ARJZ-R2 is 3.3 V with an initial accuracy of ±0.1%.[
- What is the temperature coefficient of the ADR3433ARJZ-R2? The temperature coefficient is 2.5 ppm/°C to 8 ppm/°C over the temperature range of −40°C to +125°C.[
- How much current does the ADR3433ARJZ-R2 consume? The maximum operating current is 100 μA.[
- What is the ripple rejection ratio of the ADR3433ARJZ-R2? The ripple rejection ratio is −60 dB at 60 Hz.[
- What is the long-term stability of the ADR3433ARJZ-R2? The long-term stability is 30 ppm over 1000 hours at 50°C.[
- What package type is the ADR3433ARJZ-R2 available in? It is available in a 6-lead SOT-23 package.[
- Does the ADR3433ARJZ-R2 have an enable pin? Yes, it features an enable pin for shutdown and enable functions.[
- What is the operating temperature range of the ADR3433ARJZ-R2? The operating temperature range is −40°C to +125°C.[
- How much output current can the ADR3433ARJZ-R2 source? The device can source up to 10 mA.[
- What is the turn-on settling time of the ADR3433ARJZ-R2? The turn-on settling time is approximately 800 μs with CIN = 0.1 μF, CL = 0.1 μF, and RLoad = 1 kΩ.[
