ADA4312-1ACPZ-RL

Overview

The ADA4312-1ACPZ-RL 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
• HomePlug AV2 networks
• IEEE 1901 compliant devices

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct packaging configuration. Confirm RoHS compliance status as indicated by the 'Z' designation in the part number. Ensure the procurement channel sources directly from authorized distributors to guarantee component authenticity and traceability.

Selection Notes

Select this component for half-duplex PLC modem designs requiring high output current drive into low impedance loads. Evaluate the trade-off between adjusted quiescent current and signal linearity when configuring the IADJ resistor. Ensure the PCB layout supports the required thermal dissipation and provides adequate power supply bypassing for stable high-speed performance.

Part Context

This device belongs to the ADA4312 series of high-speed line drivers. It utilizes a current feedback amplifier architecture arranged specifically for differential operation. The component is designed to operate on a single +12 V supply and includes internal circuitry to manage common-mode stability while extending differential bandwidth.

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 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.