AD680JR

Overview

The AD680JR 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 an initial accuracy of ±10 mV (±0.4%). The device exhibits a temperature coefficient of 25 ppm/°C over the 0°C to 70°C operating range. Noise performance includes 10 μV p-p from 0.1 Hz to 10 Hz and 250 nV/√Hz wideband spectral density. It operates with a load current up to 10 mA and is housed in an 8-lead SOIC package.

Feature Summary

• Laser-trimmed for high initial accuracy and low temperature drift without external components.
• Low quiescent current design suitable for power-sensitive applications.
• Integrated temperature output pin on 8-lead packages enables configuration as a temperature transducer.

Applications

• Reference for data converters such as ADCs and DACs
• Voltage regulator for portable equipment
• Low power, low voltage reference for battery-operated meters

Procurement Notes

Verify the specific suffix against the manufacturer's ordering guide to confirm package type and lead-free status. Confirm that the component meets the required operating temperature range of 0°C to 70°C. Ensure compatibility with the intended supply voltage range of 4.5 V to 36 V. Check for any recent product change notices regarding specifications or availability.

Selection Notes

Select this part when a stable 2.5 V reference is needed with low power consumption. The 8-lead SOIC package offers surface-mount capability. Consider the AD680AN or AD680AR if operation below 0°C is required. Verify that the 25 ppm/°C temperature coefficient meets the system's precision requirements.

Part Context

The AD680 series consists of band gap voltage references available in multiple grades and packages. The AD680JR specifically denotes the industrial temperature grade version in an 8-lead Small Outline Integrated Circuit (SOIC) package. Other variants include the AD680JN for PDIP packaging and the AD680JT for TO-92 packaging, all sharing similar electrical characteristics within their respective temperature ranges.

Replacement Considerations

AD680JRZ is a direct replacement offering lead-free construction.