THS3115IPWPR

Instrumentation, Op Amps, Buffer Amps Overview

The THS3115IPWPR is a dual low-noise, high-speed current-feedback amplifier in a 14-pin HTSSOP PowerPAD package. It features a 110-MHz bandwidth and 1550-V/µs slew rate. Supply voltage ranges from ±5 V to ±15 V (10 V to 30 V single). Quiescent current is 4.9 mA per channel. Input voltage noise is 2.2 nV/√Hz. Noninverting input current noise is 2.9 pA/√Hz. Inverting input current noise is 10.8 pA/√Hz. Output current drive is 150 mA minimum. Shutdown quiescent current is 300 µA per channel.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Integrates a low-power shutdown mode with 300-µA quiescent current per channel for power conservation.
• Delivers high output current of 150 mA minimum to drive demanding loads.
• Provides low noninverting current noise of 2.9 pA/√Hz and low voltage noise of 2.2 nV/√Hz.
• Offers wide supply voltage operation from ±5 V to ±15 V.

Instrumentation, Op Amps, Buffer Amps Applications

• Video distribution amplifiers
• Communication equipment signal processing
• Motor drivers
• Piezo drivers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the IP suffix indicates industrial temperature range (-40°C to +85°C) and PWP suffix denotes the HTSSOP-14 PowerPAD package. Confirm the PR suffix specifies reel packaging. Ensure the REF and SHUTDOWN pins are correctly biased to enable or disable the low-power shutdown state as required by the circuit design.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when high output current and low noise are critical alongside high speed. The THS3115 includes shutdown functionality absent in the THS3112. Verify feedback resistor values for stability at desired gains. Consider thermal dissipation requirements due to the PowerPAD package characteristics under heavy load conditions.

Instrumentation, Op Amps, Buffer Amps Part Context

Part of the THS311x family of current-feedback amplifiers. Shares core electrical performance with the THS3112 but adds shutdown control. Available in SOIC, SOIC PowerPAD, and TSSOP PowerPAD packages. Designed for applications requiring fast settling times and high slew rates.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

THS3115ID provides identical electrical specifications in a SOIC-14 package. THS3115CPWP offers commercial temperature range in the same HTSSOP-14 PowerPAD package. THS3112 variants lack the shutdown feature.

Instrumentation, Op Amps, Buffer Amps FAQ

How is the shutdown function controlled?

The shutdown state is controlled via the SHUTDOWN pin. Applying a voltage above REF + 2 V disables the amplifier, while a voltage below REF + 0.8 V enables it.

What is the recommended feedback resistor value?

For unity gain, a 750 Ω feedback resistor is recommended. For gain of 2, use 750 Ω. For gain of 4, use 560 Ω. These values optimize bandwidth and stability.