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AD680ANZ
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Product Detailed Parameters
- Description：IC VREF SERIES 0.2% 8DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Current - Output：10 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-PDIP
- Grade：-
- Qualification：-
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Overview
The AD680ANZ is a band gap voltage reference providing a fixed 2.5 V output from input voltages between 4.5 V and 36 V. It features a maximum quiescent current of 250 μA and laser-trimmed initial accuracy of ±5 mV (±0.2%). The temperature coefficient is specified at a maximum of 20 ppm/°C over the −40°C to +85°C operating range. Noise performance includes 8 μV p-p from 0.1 Hz to 10 Hz and 250 nV/√Hz wideband spectral density. The device operates with a load regulation of 100 μV/mA and line regulation of 40 μV/V.
Feature Summary
- Laser trimming ensures high initial accuracy and low temperature drift without external components.
- Low quiescent current design enables extended battery life in portable applications.
- Integrated temperature output pin allows configuration as a linear temperature transducer.
Applications
- Reference for precision ADCs and DACs
- Voltage regulator for portable equipment
- Temperature transducer circuits
Procurement Notes
Verify the specific package type, as the AD680 family includes SOIC, TO-92, and PDIP options. Confirm that the 'Z' suffix indicates lead-free compliance. Ensure the selected grade meets the required temperature range and accuracy specifications for the target application.
Selection Notes
Select the AD680ANZ when operation within the industrial temperature range of −40°C to +85°C is required. This variant offers tighter accuracy and lower temperature drift compared to commercial grades. Verify that the 8-lead PDIP package fits the mechanical constraints of the design.
Part Context
The AD680 series consists of complete, low-cost band gap voltage references available in multiple grades and packages. The AN grade specifically targets industrial environments with wider temperature coverage and higher precision than the JR or JT variants.
Replacement Considerations
Direct replacement part numbers include AD680AN and AD680ARZ for equivalent functionality in different packages.
FAQ
What is the function of Pin 3 on the 8-lead packages?
Pin 3 provides a temperature output voltage that varies linearly with temperature, allowing the device to function as a temperature transducer.
How does the AD680 handle capacitive loads?
The device can drive up to 50 nF of capacitive load. For larger transient loads, a series resistor is recommended to decouple the reference output.
