Overview
The AD680JTZ is a low power, low cost bandgap voltage reference produced by Analog Devices Inc. This component provides a stable 2.5 V output from input voltages ranging between 4.5 V and 36 V. The AD680JTZ is designed to operate at very low quiescent current while maintaining excellent DC characteristics and noise performance. It is particularly suited for applications requiring high precision, such as external references for D/A and A/D converters, and offers better performance compared to standard on-chip references.
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 | 30 | 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 |
| Line Regulation (15 V ≤ +VIN ≤ 36 V) | - | 40 | 40 | μV/V |
| Load Regulation (0 < IOUT < 10 mA) | - | 100 | - | μV/mA |
| Operating Temperature Range | 0 | - | 70 | °C |
| Package Type | - | - | 3-Lead TO-92 | - |
Key Features
- Stable 2.5 V output voltage from inputs between 4.5 V and 36 V.
- Low quiescent current, making it suitable for low power applications such as hand-held, battery-operated equipment.
- Excellent DC characteristics and noise performance.
- Trimming of high stability thin-film resistors for initial accuracy and temperature coefficient.
- Temperature output pin available on some packages, allowing configuration as a temperature transducer.
- Available in various package types including 8-lead PDIP, 8-lead SOIC, and 3-lead TO-92.
Applications
- External precision reference for D/A and A/D converters.
- Low power applications such as hand-held, battery-operated equipment.
- Temperature measurement and monitoring systems.
- General purpose voltage reference in analog circuits.
Q & A
- What is the output voltage of the AD680JTZ?
The AD680JTZ provides a stable 2.5 V output voltage. - What is the input voltage range for the AD680JTZ?
The input voltage range is between 4.5 V and 36 V. - What are the key applications of the AD680JTZ?
Key applications include external precision references for D/A and A/D converters, low power applications, and temperature measurement systems. - What is the operating temperature range for the AD680JTZ?
The operating temperature range is from 0°C to 70°C. - What package types are available for the AD680JTZ?
The AD680JTZ is available in a 3-lead TO-92 package. - Does the AD680JTZ have a temperature output pin?
Yes, but it is available only on the 8-lead package versions of the AD680, not on the AD680JTZ specifically. - How does the AD680JTZ perform in terms of noise and DC characteristics?
The AD680JTZ exhibits excellent DC characteristics and noise performance. - What is the significance of the trimming of high stability thin-film resistors in the AD680JTZ?
The trimming ensures initial accuracy and low temperature coefficient, resulting in low errors over temperature. - Can the AD680JTZ be used in place of standard on-chip references?
Yes, it can offer better performance than standard on-chip references. - What is the quiescent current of the AD680JTZ?
The quiescent current is very low, making it suitable for low power applications.
