Overview
The AD680JT, produced by Analog Devices Inc., is a low power, low cost bandgap voltage reference. This device provides a fixed 2.5 V output from input voltages ranging between 4.5 V and 36 V. The AD680JT is designed to operate at a very low quiescent current, making it ideal for low power applications such as hand-held, battery-operated equipment. It is available in a 3-pin TO-92 package and is specified for operation from 0°C to 70°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage, VO | 2.490 | 2.500 | 2.510 | V |
| Initial Accuracy, VOERR | -10 | - | +10 | mV |
| Output Voltage Drift (0°C to 70°C) | 10 | - | 25 | ppm/°C |
| Line Regulation (4.5 V ≤ +VIN ≤ 15 V) | 40 | - | 40 | μV/V |
| Load Regulation (0 < IOUT < 10 mA) | 80 | - | - | μV/mA |
| Operating Temperature Range | 0 | - | 70 | °C |
Key Features
- Low Quiescent Current: The AD680JT operates at a very low quiescent current, making it suitable for low power applications.
- Precision DC Characteristics: The device offers excellent dc characteristics and noise performance, ideal for use as a reference for D/A and A/D converters.
- Temperature Output Pin: Although not available on the 3-pin TO-92 package, other versions of the AD680 provide a temperature output pin that allows the device to be configured as a temperature transducer.
- High Stability Thin-Film Resistors: Trimming of these resistors ensures low errors over temperature, enhancing the device's accuracy and stability.
- Wide Input Voltage Range: The device can operate with input voltages between 4.5 V and 36 V.
Applications
- Low Power Applications: Ideal for hand-held, battery-operated equipment due to its low quiescent current.
- D/A and A/D Converters: Provides a precise external reference voltage, offering better performance than standard on-chip references.
- Temperature Measurement: Can be configured as a temperature transducer in other package versions.
- General Voltage Reference: Suitable for any application requiring a stable and precise voltage reference.
Q & A
- What is the output voltage of the AD680JT?
The output voltage of the AD680JT is 2.5 V.
- What is the operating temperature range of the AD680JT?
The AD680JT operates from 0°C to 70°C.
- What is the input voltage range for the AD680JT?
The input voltage range is between 4.5 V and 36 V.
- What package type is the AD680JT available in?
The AD680JT is available in a 3-pin TO-92 package.
- Why is the AD680JT suitable for low power applications?
The AD680JT is suitable due to its very low quiescent current.
- Can the AD680JT be used as a temperature transducer?
While the 3-pin TO-92 package does not have a temperature output pin, other versions of the AD680 can be configured as a temperature transducer.
- What are the key applications of the AD680JT?
Key applications include low power devices, D/A and A/D converters, and general voltage reference needs.
- How accurate is the AD680JT in terms of output voltage?
The initial accuracy of the output voltage is ±10 mV.
- What is the line regulation of the AD680JT?
The line regulation is 40 μV/V over the specified input voltage range.
- Is the AD680JT suitable for use in battery-operated devices?
Yes, it is highly suitable due to its low power consumption.
