Overview
The ADR3430ARJZ-R7 from Analog Devices Inc. is a low-cost, low-power, high-precision CMOS voltage reference. This device features a nominal output voltage of 3.0V and is designed for applications requiring high accuracy and stability. The ADR3430 utilizes Analog Devices' proprietary DigiTrim® technology to achieve ±0.1% initial accuracy and a low temperature coefficient of 8 ppm/°C. It operates over an industrial temperature range of −40°C to +125°C, making it suitable for a wide range of environments.
Key Specifications
| Parameter | Symbol | Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | - | 2.9975 | 3.000 | 3.0025 | V |
| Initial Accuracy | VOERR | - | - | ±0.1% | ±3.3 mV | - |
| Temperature Coefficient | TCVOUT | −40°C ≤ TA ≤ +125°C | 2.5 | - | 8 ppm/°C | - |
| Input Voltage Range | VIN | - | 3.2 | - | 5.5 | V |
| Operating Current | - | - | - | - | 100 μA | - |
| Output Current Capacity | IL | VIN = 3.0 V to 5.5 V | - | - | +10 mA / −3 mA | - |
| Output Noise (0.1 Hz to 10 Hz) | en p-p | - | - | - | < 10 μV p-p | - |
| 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 | - | - | 700 μs | - |
Key Features
- High precision with ±0.1% initial accuracy and 8 ppm/°C temperature coefficient using proprietary DigiTrim® technology.
- Low operating current of 100 μA maximum, suitable for low-power devices.
- Low output noise, ensuring signal integrity in critical signal processing systems.
- Low output voltage hysteresis and long-term output voltage drift for improved stability and system reliability.
- Operating temperature range of −40°C to +125°C.
- Available in a small 6-lead SOT-23 package.
- Low dropout voltage of 250 mV at 2 mA.
- Ripple rejection ratio of −60 dB at 60 Hz.
Applications
- Precision data acquisition systems.
- Industrial instrumentation.
- Medical devices.
- Battery-powered devices.
Q & A
- What is the nominal output voltage of the ADR3430ARJZ-R7?
The nominal output voltage is 3.0V.
- What is the initial accuracy of the ADR3430ARJZ-R7?
The initial accuracy is ±0.1%.
- What is the temperature coefficient of the ADR3430ARJZ-R7?
The temperature coefficient is 8 ppm/°C.
- What is the operating temperature range of the ADR3430ARJZ-R7?
The operating temperature range is −40°C to +125°C.
- What is the maximum operating current of the ADR3430ARJZ-R7?
The maximum operating current is 100 μA.
- What is the output current capacity of the ADR3430ARJZ-R7?
The output current capacity is +10 mA source / −3 mA sink.
- What is the typical output noise of the ADR3430ARJZ-R7 in the 0.1 Hz to 10 Hz range?
The typical output noise is less than 10 μV p-p.
- What is the long-term stability of the ADR3430ARJZ-R7?
The long-term stability is 30 ppm over 1000 hours at 50°C.
- What is the turn-on settling time of the ADR3430ARJZ-R7?
The turn-on settling time is 700 μs with CIN = 0.1 μF, CL = 0.1 μF, and RLoad = 1 kΩ.
- In what package is the ADR3430ARJZ-R7 available?
The ADR3430ARJZ-R7 is available in a 6-lead SOT-23 package.
