ADA4896-2ACPZ-R7

Overview

The ADA4896-2ACPZ-R7 is a dual, low noise, rail-to-rail output, high speed voltage feedback amplifier manufactured by Analog Devices Inc. It operates on a supply voltage range of 3 V to 10 V with a quiescent current of 3 mA per amplifier. The device features a -3 dB bandwidth of 230 MHz at unity gain and a slew rate of 120 V/μs. Input voltage noise density is 1 nV/√Hz at 100 kHz, while the input offset voltage maximum is 500 μV. It settles to 0.1% in 45 ns and provides an open-loop gain of 110 dB. The component is housed in an 8-lead LFCSP package.

Feature Summary

• Rail-to-rail output stage designed for driving heavy feedback loads and capacitive loads up to 39 pF.
• Low wideband noise performance with 1 nV/√Hz at 100 kHz and 2.4 nV/√Hz at 10 Hz.
• High-speed operation with 230 MHz bandwidth and 120 V/μs slew rate.
• Unity-gain stable architecture utilizing proprietary SiGe bipolar process.

Applications

• Ultrasound amplifiers
• Low noise preamplifier
• PLL loop filters
• High performance ADC drivers
• DAC buffers

Procurement Notes

Verify the specific ordering suffix R7 corresponds to the reel packaging configuration required for your assembly line. Confirm that the 8-lead LFCSP footprint matches your PCB layout design. Ensure the operating temperature range of -40°C to +125°C aligns with your system environmental specifications before finalizing procurement.

Selection Notes

Select this component when a combination of low power consumption (3 mA) and high speed (230 MHz) is required. It is suitable for applications needing rail-to-rail output swing without sacrificing low noise characteristics. Consider the 8-lead LFCSP package if space constraints are present. Verify that the 500 μV maximum input offset voltage meets your DC accuracy requirements.

Part Context

This part belongs to the ADA4896-2/ADA4897-1/ADA4897-2 family of amplifiers. While the ADA4897 variants include a disable feature, the ADA4896-2 does not. All members share similar electrical characteristics regarding noise, bandwidth, and power consumption, differing primarily in package options and pin configurations.

Replacement Considerations

Direct functional replacements within the same family include the ADA4896-2ARMZ (MSOP package). Other parts like the ADA4897-1 or ADA4897-2 offer identical electrical performance but include a disable pin, requiring schematic adjustments.

FAQ

Does the ADA4896-2ACPZ-R7 have a disable pin?

No, the ADA4896-2 variant does not include a disable pin. This feature is available only in the ADA4897-1 and ADA4897-2 models.

What is the maximum input offset voltage drift?

The input offset voltage drift is specified as 0.2 μV/°C across the operating temperature range.