AD8336ACPZ-R7

Overview

The AD8336ACPZ-R7 is a low-noise, single-ended, linear-in-dB general-purpose variable gain amplifier (VGA) from Analog Devices Inc. It features an uncommitted preamplifier with a usable gain range of 6 dB to 26 dB and a VGA gain range of 0 dB to 60 dB. The device operates over supply voltages of ±3 V to ±12 V and supports a temperature range of −55°C to +125°C. Key electrical parameters include a small-signal bandwidth of 115 MHz, large-signal bandwidth of 80 MHz at 2 V p-p, and a slew rate of 550 V/µs. Gain scaling is 50 dB/V, with specified composite gain ranges of −14 dB to +46 dB or 0 dB to 60 dB.

Feature Summary

• Features X-AMP architecture for consistent frequency response across the entire gain range.
• Includes an independent voltage feedback preamplifier supporting inverting and noninverting topologies.
• Provides precise linear-in-dB gain adjustment via a differential gain control interface.
• Supports dual-supply operation suitable for bipolar input signals.

Applications

• Industrial process controls
• High performance AGC systems
• I/Q signal processing
• Video circuits
• Radar receivers

Procurement Notes

Verify the specific suffix R7 indicates tape and reel packaging when sourcing. Confirm the operating temperature range requirements against the datasheet limits of −55°C to +125°C. Ensure supply voltage constraints are within the ±3 V to ±12 V operational window. Check for any recent product change notices regarding assembly site transfers or specification updates.

Selection Notes

Select this component for applications requiring wide dynamic range and DC coupling. Consider the preamplifier offset voltage if high total gain is needed without AC coupling. Evaluate power dissipation at higher supply voltages, as thermal derating applies above ±10 V. Verify that the load impedance and output swing requirements align with the specified linear operation limits.

Part Context

This part belongs to the AD8336 family of wideband, DC-coupled VGAs. It utilizes the proprietary X-AMP architecture to maintain stable frequency response regardless of gain settings. The device integrates a fixed-gain stage and a programmable attenuator, controlled by a differential voltage input for linear dB scaling.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.

FAQ

How is the preamplifier gain configured?

The preamplifier gain is set using external resistors in a standard operational amplifier configuration, allowing for gains between 6 dB and 26 dB.

What is the effect of the PWRA pin?

Asserting the PWRA pin reduces quiescent power consumption and bandwidth by approximately half, which is useful for applications requiring lower power at higher supply voltages.