AD680JTZ

Overview

The AD680JTZ is a band gap voltage reference providing a fixed 2.5 V output from input voltages between 4.5 V and 36 V. It operates with a maximum quiescent current of 250 μA and features laser-trimmed initial accuracy of ±10 mV (±0.4%). The device exhibits a maximum temperature coefficient of 30 ppm/°C within the 0°C to 70°C operating range. Noise performance includes 8 μV p-p from 0.1 Hz to 10 Hz and 250 nV/√Hz wideband spectral density. It is housed in a 3-pin TO-92 package.

Feature Summary

• Laser trimmed for high initial accuracy and low temperature drift without external components
• Low quiescent current suitable for battery-operated equipment
• Low noise characteristics for precision applications
• Safe for indefinite short to ground

Applications

• Portable equipment power supplies
• Reference for ADCs and DACs
• Hand-held battery-operated meters

Procurement Notes

Verify the specific grade suffix JT against the manufacturer's ordering guide to confirm the 3-pin TO-92 package and 0°C to 70°C temperature range. Ensure the Z suffix indicates lead-free compliance if required by the design specifications. Cross-reference the datasheet revision to confirm pinout consistency for the TO-92 configuration.

Selection Notes

Select this component when a low-cost, low-power reference is needed in a through-hole TO-92 package. It is appropriate for designs requiring operation from inputs up to 36 V while maintaining low current consumption. Consider the 0°C to 70°C industrial temperature range limits compared to the extended -40°C to +85°C grades available in other packages.

Part Context

The AD680 series comprises band gap voltage references available in multiple grades and packages. The AD680JT variant specifically utilizes the 3-pin TO-92 plastic header-style package. This form factor offers a cost-effective alternative to traditional 2-terminal references while providing complete precision reference functionality in a compact footprint.

Replacement Considerations

Direct substitutes include other AD680 variants such as AD680JR or AD680JN, provided the package type change is acceptable. Verify that the temperature coefficient and accuracy grades meet the circuit requirements when substituting across different package options.