AD8513ARU

Overview

The AD8513ARU is a quad precision JFET operational amplifier from Analog Devices, housed in a 14-lead TSSOP package. It features an 8 MHz gain bandwidth product and a 20 V/μs slew rate. The device operates on dual supplies ranging from ±5 V to ±15 V with a typical supply current of 2.75 mA per amplifier at extended temperatures. Key electrical characteristics include a maximum input offset voltage of 1.8 mV over the temperature range, a typical input bias current of 25 pA, and a voltage noise density of 8 nV/√Hz at 1 kHz.

Feature Summary

• Provides high dc precision with low offset voltage and drift for accurate signal conditioning
• Features very low input bias current suitable for high impedance sensor applications
• Maintains stability when driving substantial capacitive loads without phase reversal

Applications

• Instrumentation systems requiring high accuracy
• Multipole filter circuits demanding fast settling times
• Photodiode amplifiers utilizing low noise characteristics
• Precision current measurement using shunt resistors

Procurement Notes

Verify the specific suffix ARU corresponds to the 14-lead TSSOP package configuration before ordering. Confirm that the required operating temperature range aligns with the specified -40°C to +125°C industrial limits. Ensure the design accommodates the absolute maximum ratings regarding supply voltage and input overvoltage protection thresholds.

Selection Notes

Select this component for applications requiring quad channel integration with JFET input characteristics. Consider the trade-off between the low bias current and the moderate supply current consumption compared to CMOS alternatives. Evaluate the need for the specific 14-lead TSSOP footprint against available board space and thermal dissipation requirements for the four-channel configuration.

Part Context

This part belongs to the AD8510/AD8512/AD8513 family of precision JFET amplifiers. While the AD8510 offers single-channel and the AD8512 provides dual-channel configurations, the AD8513 integrates four independent amplifiers into one package. All variants share identical core electrical specifications and performance metrics.

Replacement Considerations

Direct functional substitutes within the same package are not explicitly listed in the provided documentation. Designers should evaluate other members of the AD851x series or comparable quad JFET op-amps if pin compatibility is critical.