会社ブログについて ADI AD8352-EVALZ Evaluation Board For AD8352 Ultralow Distortion Differential RF Amplifier

ADI AD8352-EVALZ Evaluation Board For AD8352 Ultralow Distortion Differential RF Amplifier

Shenzhen Mingjiada Electronics Co., Ltd., as a professional electronic component supplier, provides the AD8352-EVALZ ultra-low distortion differential RF/IF amplifier evaluation board. This evaluation board is a fully functional board specifically designed for the development of RF and high-speed analogue-to-digital conversion systems.

The AD8352-EVALZ evaluation board supports an operating bandwidth up to 2.2 GHz, delivering a spurious-free dynamic range exceeding 80 dB at frequencies up to 200 MHz. This makes it an ideal driver for high-speed 12-bit to 16-bit analogue-to-digital converters.

【AD8352-EVALZ Product Overview】

The AD8352-EVALZ is a fully-featured evaluation board utilising a four-layer FR4 substrate design with all components pre-installed, enabling straightforward evaluation of all AD8352 characteristics.

The AD8352-EVALZ incorporates a bypassable transformer, supports single-ended or differential input/output, and provides mounting locations for impedance matching networks.

The AD8352-EVALZ evaluation board requires only a single supply voltage ranging from 3.0 V to 5.5 V, operating within a temperature range of -40°C to +85°C.

The AD8352-EVALZ boasts impressive key specifications: a -3 dB bandwidth of 2.2 GHz, a single-resistor gain adjustment range from 3 dB to 25 dB, and an input resistance of 3 kΩ that remains gain-independent.

【Core Component: AD8352 Amplifier】

The AD8352 is a high-performance differential amplifier optimised for radio frequency (RF) and intermediate frequency (IF) applications.

Unlike other broadband differential amplifiers, the AD8352 incorporates a buffer that isolates the gain-setting resistors from the signal inputs.

This unique design maintains a constant 3 kΩ input impedance across the entire 3 dB to 25 dB gain range, significantly reducing matching and input drive requirements.

Housed in a compact 3 mm × 3 mm, 16-pin LFCSP package, the AD8352 delivers high bandwidth and low distortion performance beyond 500 MHz.

These characteristics, combined with its wide gain adjustment capability, make it the preferred amplifier for general IF and broadband applications demanding stringent low distortion, low noise, and low power consumption.

【AD8352-EVALZ Core Features】

Ultra-wide bandwidth: The AD8352 offers a -3dB bandwidth of 2.2GHz (at 10dB gain), enabling processing of high-speed signals

Flexible gain adjustment: Single-resistor gain adjustment provides a gain range from 3dB to 25dB

Constant input impedance: The AD8352 maintains a constant 3kΩ input resistance regardless of gain changes, simplifying matching and input driver design

Low Distortion Performance: At 190MHz, second harmonic distortion (HD2) is -81dBc and third harmonic distortion (HD3) is -87dBc

Low-noise design: Input reference noise is only 2.7 nV/√Hz at 10 dB gain

【AD8352-EVALZ Performance Specifications】

The AD8352-EVALZ demonstrates exceptional distortion performance. At 10 MHz, its second-order harmonic distortion is -86 dBc and third-order harmonic distortion is -82 dBc.

Even at the high frequency of 190 MHz, it maintains second-order distortion of -81 dBc and third-order distortion of -87 dBc.

The AD8352-EVALZ achieves an output third-order intercept point of 41 dBm (at 150 MHz), with a slew rate of 8 V/ns and establishment and overshoot recovery times of just 2 ns.

The low-noise input stage is another highlight of the AD8352, featuring an input reference noise as low as 2.7 nV/√Hz at a gain of 10 dB.

These outstanding performance metrics make the AD8352 an ideal choice for driving high-speed ADCs, offering broad application prospects in next-generation 3G and 4G cellular as well as broadband WiMAX wireless infrastructure.

【AD8352-EVALZ Technical Details】

The AD8352 employs ADI's proprietary internal offset compensation scheme and a specialised silicon-on-insulator (SOI) SiGe process technology, XFCB-3, enabling it to maintain ultra-low distortion even at higher frequencies.

At 150MHz, the output third-order intercept point (OIP3) reaches 41dBm, while the quiescent current is only 37mA.

Unlike other wideband differential amplifiers, the AD8352 incorporates a buffer that isolates the gain-setting resistor from the signal input.

This design allows users to select the desired gain with a single external resistor without compromising noise performance or input matching, significantly reducing development time.

【AD8352-EVALZ Application Domains】

The AD8352-EVALZ evaluation board primarily targets four key application domains: differential ADC drivers, single-ended-to-differential conversion, RF/IF gain modules, and SAW filter interfaces.

In communications system design, the AD8352 can directly drive high-speed 12-bit to 16-bit ADCs, meeting the stringent requirements for high linearity and low distortion in modern wireless infrastructure.

The AD8352's wide bandwidth makes it highly suitable for high-frequency applications. When driving high-speed ADCs up to 380 MHz, the AD8352 still delivers excellent performance, far exceeding the 100 MHz frequency limitations of comparable competitive products.

This evaluation board may also be utilised to assess the AD8352's performance as a single-ended-to-differential converter, maintaining outstanding distortion characteristics at frequencies exceeding approximately 100 MHz without requiring transformers or baluns preceding the amplifier.

Mingjiada Electronics maintains long-term supply of other ADI evaluation board components, including but not limited to the following models:

ADL5519-EVALZ

ADL5535-EVALZ

ADL5541-EVALZ

ADL5544-EVALZ

ADL5545-EVALZ

ADL5561-EVALZ

ADL5562-EVALZ

ADL5566-EVALZ

ADL5580-EVALZ

ADL5602-EVALZ

ADL5605-EVALZ

ADL5606-EVALZ

ADL5611-EVALZ

ADL5802-EVALZ

ADL5902-EVALZ

ADL5904-EVALZ

ADL5906-EVALZ

ADL5910-EVALZ

ADL6317-EVALZ

ADRF5019-EVALZ