Overview
The ADR550BRTZ-REEL7 is a high-precision shunt mode voltage reference produced by Analog Devices Inc. This component is designed for space-critical applications and is housed in an ultrasmall 3-Lead SOT-23-3 package. It is part of the ADR520/ADR525/ADR530/ADR540/ADR550 series, which are known for their low temperature drift, high initial accuracy, and ultralow output noise. The ADR550BRTZ-REEL7 is particularly suited for handheld, battery-powered applications due to its low operating current and ease of use.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | Grade A | 4.980 | 5.000 | 5.020 | V |
| Output Voltage | VOUT | Grade B | 4.990 | 5.000 | 5.010 | V |
| Initial Accuracy | VOERR | Grade A | ±0.4% | -20 +20 mV | ||
| Initial Accuracy | VOERR | Grade B | ±0.2% | -10 +10 mV | ||
| Temperature Coefficient | TCVO | -40°C < TA < +85°C | Grade A: 25 ppm/°C | Grade A: 70 ppm/°C | ppm/°C | |
| Temperature Coefficient | TCVO | -40°C < TA < +85°C | Grade B: 15 ppm/°C | Grade B: 40 ppm/°C | ppm/°C | |
| Minimum Operating Current | IIN | -40°C < TA < +85°C | 50 μA | μA | ||
| Output Voltage Change vs. IIN | ∆VR | IIN = 0.1 mA to 15 mA | 1 mV | mV | ||
| Voltage Noise | eN p-p | 0.1 Hz to 10 Hz | 22 μV p-p | μV p-p | ||
| Turn-On Settling Time | tR | 2 μs | μs |
Key Features
- High Precision: The ADR550BRTZ-REEL7 offers high precision with an initial accuracy of better than ±0.2% and a low temperature drift of 40 ppm/°C.
- Low Operating Current: It operates with a minimum current of 50 μA, making it ideal for battery-powered and handheld applications.
- Ultralow Output Noise: The component features ultralow output noise of 14 μV p-p, enhancing its suitability for noise-sensitive applications.
- Adjustable Output Voltage: The output voltage can be trimmed using the trim terminal over a range of ±0.5%.
- Compact Packaging: Housed in a 3-Lead SOT-23-3 package, it is suitable for space-critical applications.
- Stability with Capacitive Load: The reference is stable with any capacitive load, eliminating the need for external compensation capacitors).
Applications
- Handheld and Battery-Powered Devices: Due to its low operating current, it is ideal for handheld and battery-powered devices such as portable medical equipment, consumer electronics, and industrial control systems).
- Precision Voltage Sources: It can be used to create precise adjustable voltage sources when combined with a low input bias op-amp).
- Negative Voltage References: The ADR550 can be configured to provide a precise negative voltage output, making it suitable for applications requiring negative references).
- Stacked Configurations: Multiple ADR550s can be stacked to achieve higher output voltages, such as +15 V or -15 V, as needed).
Q & A
- What is the output voltage of the ADR550BRTZ-REEL7?
The output voltage of the ADR550BRTZ-REEL7 is 5.0 V, with an initial accuracy of ±0.2% for Grade B and ±0.4% for Grade A).
- What is the minimum operating current of the ADR550BRTZ-REEL7?
The minimum operating current is 50 μA).
- What is the temperature coefficient of the ADR550BRTZ-REEL7?
The temperature coefficient is 15 ppm/°C to 40 ppm/°C for Grade B and 25 ppm/°C to 70 ppm/°C for Grade A over the range -40°C to +85°C).
- Can the output voltage of the ADR550BRTZ-REEL7 be adjusted?
Yes, the output voltage can be trimmed using the trim terminal over a range of ±0.5%).
- What is the typical voltage noise of the ADR550BRTZ-REEL7?
The typical voltage noise is 22 μV p-p from 0.1 Hz to 10 Hz).
- What is the turn-on settling time of the ADR550BRTZ-REEL7?
The turn-on settling time is 2 μs).
- Can multiple ADR550BRTZ-REEL7s be stacked for higher output voltages?
Yes, multiple units can be stacked to achieve higher output voltages such as +15 V or -15 V).
- What package type is the ADR550BRTZ-REEL7 available in?
The ADR550BRTZ-REEL7 is available in a 3-Lead SOT-23-3 package).
- Is the ADR550BRTZ-REEL7 stable with capacitive loads?
Yes, the reference is stable with any capacitive load without the need for external compensation capacitors).
- What are some typical applications of the ADR550BRTZ-REEL7?
Typical applications include handheld and battery-powered devices, precision voltage sources, and configurations requiring negative voltage references).
