Overview
The ADR435ARM-REEL7 is a part of the ADR430/ADR431/ADR433/ADR434/ADR435 series, a family of XFET® voltage references produced by Analog Devices Inc. These voltage references are known for their ultralow noise, high accuracy, and low temperature drift performance. Utilizing Analog Devices' patented temperature drift curvature correction and extra implanted junction FET (XFET) technology, these references minimize voltage change vs. temperature nonlinearity. The ADR435ARM-REEL7 operates at lower current (800 μA) and lower supply voltage headroom (2 V) compared to traditional buried Zener references, making them ideal for 5 V systems.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VO | A Grade | 4.995 | 5.000 | 5.005 | V |
| Initial Accuracy | VOERR | A Grade | ±3 mV | ±0.06 % | ||
| Temperature Coefficient | TCVO | A Grade, −40°C < TA < +125°C | 3 ppm/°C | |||
| Supply Voltage Operating Range | VIN | 7.0 V | 18 V | |||
| Supply Voltage Headroom | VIN - VOUT | 2 V | ||||
| Output Current Source/Sink | +30 mA / -20 mA | |||||
| Operating Temperature Range | TA | −40°C | +125°C | |||
| Noise (0.1 Hz to 10.0 Hz) | eN | 3.5 μV p-p | ||||
| Long-term Stability (1000 hours) | ∆VOUT | 40 ppm |
Key Features
- Ultralow noise performance: 3.5 μV p-p from 0.1 Hz to 10.0 Hz at 5 V output.
- High accuracy and low temperature drift: Temperature coefficient as low as 3 ppm/°C.
- Low supply current: 800 μA and low supply voltage headroom: 2 V.
- Current source and sink capability: Up to +30 mA source and -20 mA sink current.
- Trim terminal for output voltage adjustment: ±0.5% range without compromising performance.
- No external capacitor required for operation.
- Wide operating temperature range: −40°C to +125°C.
- Available in 8-lead MSOP and 8-lead narrow SOIC packages.
Applications
- Precision data acquisition systems.
- High resolution data converters.
- Medical instruments.
- Industrial process control systems.
- Optical control circuits.
- Precision instruments.
Q & A
- What is the output voltage of the ADR435ARM-REEL7?
The output voltage of the ADR435ARM-REEL7 is 5.000 V with an initial accuracy of ±3 mV (A Grade) and ±1 mV (B Grade).
- What is the temperature coefficient of the ADR435ARM-REEL7?
The temperature coefficient is as low as 3 ppm/°C for the A Grade over the temperature range of −40°C to +125°C.
- What is the supply voltage operating range for the ADR435ARM-REEL7?
The supply voltage operating range is from 7.0 V to 18 V.
- Does the ADR435ARM-REEL7 require an external capacitor for operation?
No, the ADR435ARM-REEL7 does not require an external capacitor for operation.
- What are the current source and sink capabilities of the ADR435ARM-REEL7?
The ADR435ARM-REEL7 can source up to +30 mA and sink up to -20 mA of output current.
- What is the noise performance of the ADR435ARM-REEL7?
The noise performance is 3.5 μV p-p from 0.1 Hz to 10.0 Hz at 5 V output.
- What is the long-term stability of the ADR435ARM-REEL7?
The long-term stability is specified as 40 ppm over 1000 hours.[
- In what packages is the ADR435ARM-REEL7 available?
The ADR435ARM-REEL7 is available in 8-lead MSOP and 8-lead narrow SOIC packages.
- What are some typical applications of the ADR435ARM-REEL7?
Typical applications include precision data acquisition systems, high resolution data converters, medical instruments, industrial process control systems, optical control circuits, and precision instruments.
- What is the operating temperature range of the ADR435ARM-REEL7?
The operating temperature range is from −40°C to +125°C.
