Overview
The ADR293ERZ-REEL is a low noise, micropower precision voltage reference produced by Analog Devices Inc. This device utilizes an XFET® (eXtra implanted junction FET) reference circuit, which offers significant performance improvements over traditional band gap and buried Zener-based references. It is designed to provide a stable and accurate output voltage of 5.0 V from a supply range of 6.0 V to 15 V, making it ideal for battery-powered instrumentation and other applications requiring low power consumption and high precision.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | IOUT = 0 mA, E Grade | 4.997 | 5.000 | 5.003 | V |
| Initial Accuracy | IOUT = 0 mA, E Grade | -3 | 0 | +3 | mV | |
| Initial Accuracy | IOUT = 0 mA, E Grade | 0.06% | % | |||
| Supply Current | ISUPPLY | 15 | μA | |||
| Temperature Coefficient | 8 | 25 | ppm/°C | |||
| Line Regulation | ΔVOUT /ΔVIN | 6.0 V to 15 V, IOUT = 0 mA | 30 | ppm/V | ||
| Load Regulation | IOUT = 0 mA | 30 | ppm/mA | |||
| Operating Temperature Range | -40 | +125 | °C | |||
| Package Type | 8-Lead SOIC_N R-8 |
Key Features
- Low noise and micropower operation, making it suitable for battery-powered devices.
- Utilizes XFET® reference circuit for improved performance over traditional references.
- Stable and accurate output voltage of 5.0 V.
- Low quiescent current of 15 μA maximum.
- Excellent long-term stability and low thermal hysteresis.
- Available in three electrical grades with initial output accuracy of ±3 mV, ±6 mV, and ±10 mV.
- Operating temperature range of –40°C to +125°C.
- Available in 8-lead SOIC and 8-lead TSSOP packages.
Applications
The ADR293ERZ-REEL is ideal for various applications requiring a stable, low-power, and high-precision voltage reference. These include:
- Battery-powered instrumentation.
- Portable equipment power supplies.
- Voltage regulators with low output noise and fast recovery after current surges.
- Any system needing a reliable and low-noise voltage reference.
Q & A
- What is the output voltage of the ADR293ERZ-REEL?
The output voltage of the ADR293ERZ-REEL is 5.0 V. - What is the supply current of the ADR293ERZ-REEL?
The supply current is 15 μA maximum. - What are the available electrical grades for the ADR293ERZ-REEL?
The device is available in three electrical grades with initial output accuracy of ±3 mV, ±6 mV, and ±10 mV. - What is the operating temperature range of the ADR293ERZ-REEL?
The operating temperature range is –40°C to +125°C. - What are the typical applications of the ADR293ERZ-REEL?
Typical applications include battery-powered instrumentation, portable equipment power supplies, and voltage regulators. - What type of packages is the ADR293ERZ-REEL available in?
The device is available in 8-lead SOIC and 8-lead TSSOP packages. - What is the line regulation of the ADR293ERZ-REEL?
The line regulation is typically 30 ppm/V. - What is the load regulation of the ADR293ERZ-REEL?
The load regulation is typically 30 ppm/mA. - Why is the ADR293ERZ-REEL preferred over traditional voltage references?
The ADR293ERZ-REEL is preferred due to its low noise, low thermal hysteresis, and excellent long-term stability. - What precautions should be taken when selecting output capacitors for the ADR293ERZ-REEL?
Precautions should be taken to avoid high ESR (effective series resistance) capacitors, as they could endanger the stability of the circuit.
