ADA4312-1ACPZ-R7

Overview

The ADA4312-1ACPZ-R7 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 a single-supply voltage range of 12 V, drawing 46 mA in active mode and 3 mA during shutdown. The component is housed in a thermally enhanced 16-lead LFCSP package.

Feature Summary

• High-speed differential architecture optimized for broadband power line communication applications requiring high linearity and low impedance load driving.
• Integrated CMOS-compatible shutdown control pin reduces quiescent current to 3 mA while maintaining a high differential output impedance.
• Resistor-adjustable bias current capability allows for improved efficiency in transmit mode by lowering the operating current.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging format and reel specifications. Ensure compatibility with the required thermal management guidelines for the LFCSP package. Confirm RoHS compliance status as indicated in the ordering guide before finalizing procurement details.

Selection Notes

Select this component for half-duplex PLC modem designs requiring high output current drive and wide bandwidth. Evaluate the trade-off between adjusted quiescent current and signal linearity using the MTPR data. Ensure the PCB layout supports the necessary thermal dissipation through the exposed pad for reliable operation within the specified temperature range.

Part Context

This part belongs to the ADA4312-1 series of high-speed differential line drivers manufactured by Analog Devices Inc. It is designed specifically for power line communication environments where robust signal transmission over noisy media is critical. The device integrates two current feedback amplifiers into a single differential configuration.

Replacement Considerations

ADA4312-1ACPZ-R2

FAQ

How does the shutdown pin affect the output impedance?

When the SD pin is driven high (≥ 2.0 V), the device enters shutdown mode, reducing the differential output impedance to 10 kΩ open-loop.

What is the purpose of the IADJ pin?

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