ADA4312-1ACPZ-R2

Overview

The ADA4312-1ACPZ-R2 is a wideband, differential, high output current line driver with shutdown functionality. It features a 195 MHz -3 dB bandwidth and a 2100 V/µs slew rate. The device delivers a peak output current of 225 mA and supports an 18.0 V p-p differential swing on a 12 V supply. It operates within an extended industrial temperature range of −40°C to +85°C.

Feature Summary

• High-speed differential architecture optimized for broadband power line communication applications requiring high linearity.
• Integrated CMOS-compatible shutdown control pin reduces quiescent current while maintaining high output impedance.
• Resistor-adjustable bias current capability allows for improved efficiency in transmit mode.
• Thermally enhanced package design facilitates robust thermal management for sustained operation.

Applications

• ITU G.hn (ITU G.9960/G.9961) modems
• HomePlug AV systems
• IEEE 1901 implementations

Procurement Notes

Verify the specific ordering suffix R2 against official Analog Devices documentation to confirm reel packaging specifications. Ensure compatibility with the required thermal ground plane connections for the exposed pad. Confirm that the single-supply voltage requirements align with system constraints before integration.

Selection Notes

Select this component for half-duplex PLC modem designs requiring high differential output current and wide bandwidth. Evaluate the trade-off between adjusted quiescent current and signal linearity using the IADJ resistor. Ensure PCB layout adheres to symmetry guidelines to maintain differential signal balance and stability.

Part Context

This part belongs to the ADA4312 series of high-speed differential line drivers. It is designed specifically for power line communication environments where driving low impedance loads is necessary. The device integrates two current feedback amplifiers into a single differential configuration.

Replacement Considerations

ADA4312-1ACPZ-R7 and ADA4312-1ACPZ-RL are confirmed substitutes within the same family offering identical electrical characteristics and package dimensions.

FAQ

How does the shutdown pin affect the output impedance?

When the SD pin is driven high (≥ 2.0 V), the outputs switch to a high output impedance state equivalent to 10 kΩ differential in open-loop.

What is the function of the IADJ pin?

The IADJ pin allows for resistor-controlled adjustment of the quiescent operating current to improve efficiency during transmit mode.