ADA4310-1ARHZ-R7

Overview

The ADA4310-1ARHZ-R7 is a dual-channel, high-speed current feedback operational amplifier designed for broadband applications requiring high linearity and low impedance load driving. It features a -3 dB bandwidth of 190 MHz at G = +5 and a slew rate of 820 V/µs with a 50 Ω load. The device supports single or dual supply voltages ranging from +5 V to ±6 V. It incorporates power management via CMOS-compatible PD1 and PD0 pins, enabling four modes: full power (7.6 mA/amp), medium power (5.6 mA/amp), low power (3.9 mA/amp), and shutdown (0.65 mA/amp). In shutdown mode, the output enters a high-impedance state.

Feature Summary

• Dual-channel current feedback architecture optimized for high output current and wide bandwidth in broadband signal processing.
• Integrated power management system allowing selection between full, medium, and low power modes or complete shutdown via logic control pins.
• High linearity performance characterized by low harmonic distortion (-95 dBc typical) suitable for precision video and communication line drivers.

Applications

• Home networking line drivers
• Twisted pair line drivers
• Power line communications
• Video line drivers

Procurement Notes

Verify the specific ordering suffix '-R7' corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the 'Z' designation indicates RoHS compliance status as per manufacturer specifications. Ensure the component matches the 10-lead Mini Small Outline Package with Exposed Pad (RH-10-1) physical dimensions and thermal requirements for the target PCB layout.

Selection Notes

Select this component when designing circuits that require driving low impedance loads such as 50 Ω or 100 Ω transmission lines while maintaining signal integrity over wide frequency bands. The adjustable quiescent current feature allows designers to balance power consumption against bandwidth and slew rate performance based on specific application constraints. Ensure adequate thermal dissipation through the exposed paddle connection to ground.

Part Context

This part belongs to the ADA4310-1 series of high-speed line drivers manufactured by Analog Devices. It is distinct from voltage feedback amplifiers due to its current feedback topology, which provides consistent bandwidth regardless of gain settings within specified limits. The device is rated for operation in the extended industrial temperature range of -40°C to +85°C.

Replacement Considerations

ADA4310-1ACPZ-R7

FAQ

How does the exposed thermal pad function in the 10-lead MSOP package?

In the 10-lead MSOP package, the exposed thermal pad serves as the electrical reference for the power-down pins and acts as the sole electrical connection for the negative supply voltage. It must be connected to ground for the device to operate correctly.

What is the impact of the feedback resistor value on stability?

Reducing the feedback resistor below the recommended value can cause the amplifier response to peak and potentially become unstable. Increasing the resistance beyond the recommended value reduces the closed-loop bandwidth.