Overview
The AD680ANZ, produced by Analog Devices Inc., is a bandgap voltage reference IC that provides a fixed 2.5 V output from input voltages ranging between 4.5 V and 36 V. This device is designed to operate at a very low quiescent current, making it ideal for low power applications such as hand-held, battery-operated equipment. The AD680ANZ is part of the AD680 series, known for its high accuracy, low noise, and excellent DC characteristics.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage, VO | 2.495 | 2.500 | 2.505 | V |
| Initial Accuracy, VOERR | -5 | +5 | mV | |
| Output Voltage Drift (0°C to 70°C) | 10 | 25 | ppm/°C | |
| Output Voltage Drift (-40°C to +85°C) | 20 | 25 | ppm/°C | |
| Line Regulation (4.5 V ≤ +VIN ≤ 15 V) | 40 | 40 | μV/V | |
| Load Regulation (0 < IOUT < 10 mA) | 80 | 100 | μV/mA | |
| Quiescent Current | 250 | μA | ||
| Operating Temperature Range | -40 | +85 | °C | |
| Package Type | 8-Lead PDIP |
Key Features
- High Accuracy: The AD680ANZ offers high accuracy with an output voltage of 2.5 V ± 5 mV max, making it suitable for precision applications.
- Low Quiescent Current: Operates at a very low quiescent current of 250 μA max, rivaling many incomplete 2-terminal references.
- Low Noise: Features low noise, typically 8 μV p-p from 0.1 Hz to 10 Hz and a spectral density of 250 nV/√Hz.
- Temperature Output Pin: Available in packages with a temperature output pin, allowing it to be configured as a temperature transducer.
- Low Errors Over Temperature: Laser trimming of high stability thin-film resistors results in low errors over temperature without the need for external components.
Applications
- DACs and ADCs: Ideal for use as a reference for Digital-to-Analog Converters (DACs) and Analog-to-Digital Converters (ADCs) that require external precision references.
- Low Power Applications: Recommended for low power applications such as hand-held, battery-operated equipment.
- General Precision References: Can offer better performance than standard on-chip references in various precision applications.
Q & A
- What is the output voltage of the AD680ANZ?
The output voltage of the AD680ANZ is 2.5 V.
- What is the input voltage range for the AD680ANZ?
The input voltage range is between 4.5 V and 36 V.
- What is the quiescent current of the AD680ANZ?
The quiescent current is 250 μA max.
- What are the available package types for the AD680ANZ?
The AD680ANZ is available in an 8-Lead PDIP package.
- What is the operating temperature range for the AD680ANZ?
The operating temperature range is from -40°C to +85°C.
- Does the AD680ANZ have a temperature output pin?
- What are the typical noise characteristics of the AD680ANZ?
The noise is typically 8 μV p-p from 0.1 Hz to 10 Hz and has a spectral density of 250 nV/√Hz.
- Is the AD680ANZ suitable for low power applications?
- Can the AD680ANZ be used as a reference for DACs and ADCs?
- How accurate is the AD680ANZ over temperature?
The AD680ANZ has low errors over temperature, with a maximum variation of 6.25 mV between -40°C and +85°C.
