ADM7170

• Designed to cover full Tx signal chains with integrated MCU and user-friendly GUI for faster and easier integration
• Supports fault event protection - overvoltage (OV), overcurrent (OC), and overtemperature (OT)
• Supports ultrafast sub-µs GaN gate voltage switching ~ (<1 µs)
• Supports ultrafast (<10 µs) fault event protection from detection up to GaN gate pinch-off
• Wide range of gate bias voltages from -10 V to +10 V
• Configurable power-up and power-down sequence

The AD-PAARRAY3552R-SL reference design provides control, protection, and proper biasing sequence for GaN power amplifier (PA) arrays. The design incorporates the AD3553R high-speed, dual-channel, 16-bit DAC to support the ultrafast sub-µs voltage settling time of GaN gates.

Key fault events, including overvoltage, overcurrent, and overtemperature, are effectively managed by the LTC7000, a static switch driver responsible for system fault protection.

The on-board MAX32666 ultralow-power ARM^® Cortex^®-M4 microprocessor provides essential debug and programming features for a comprehensive software development experience with the system. The system's firmware is built on ADI's open-source no-OS framework and includes a user-friendly graphical interface (GUI) for evaluation. Updates are easily applied through an SWD UART bootloader, streamlining prototyping.

The system can be powered by an external +48 V supply, requiring high current capabilities.

APPLICATIONS

• 5G massive MIMOs
• Macro base stations

Specifications

Fault Events
Fault	Default Limit
Overvoltage	+55 V
Overcurrent	3.5 A
Overtemperature	75°C
Output Ports
Port Name	No. of ports
GaN gate ports	6
+48 V Gan drain ports	4
+5 V ports	5
Enable ports	2
Power Supply
External	+48 V DC at 5 A
Operating Conditions
Temperature Range	45°C to +75°C

• TX
  • 16-bit 12GSPS RFDAC
  • JESD204B Interface
    • 8 lanes up to 12.5Gbps
  • 1x/2x/4x/6x/8x/12x/16x/24x/32x Interpolation
  • 64-bit NCO at max rate
  • Analog Modes of Operation:
    • Normal Mode: 6GSPS DAC rate
      • Synthesis up to 2.5GHz (1st Nyquist)
    • Mix Mode: 6GSPS DAC rate
      • Synthesis in 2nd & 3rd Nyquist zones
    • 2X Normal Mode: 12GSPS DAC rate
      • Synthesis up to 6GHz (1st Nyquist)
    • Excellent dynamic performance
• RX
  • 3.2GHz full power bandwidth at 2.5GSPS
    • Noise Density = -149.5dBFs/Hz, ENOB = 9.5 bits
    • SFDR = 77 dBc at 1GHz Ain (2.5Gsps)
    • SFDR = 77dBc at 1.8GHz Ain (2.5Gsps)
  • +/-0.3 LSB DNL, +/-1.0 LSB INL
  • Dual supplies : 1.3V and 2.5V
  • 8 or 6 Lane JESD204B Outputs
  • Programmable clipping threshold for Fast Detect output
  • Two Integrated wide band digital down converters (DDC) per channel
    • 10-bit complex NCO
    • 2 cascaded half band filters (dec/8, dec/16)
  • Timestamp for synchronous processing alignment
    • SYSREF Setup/Hold detector
  • Programmable Interrupt (IRQ) event monitor

The AD-FMComms11-EBZ board is a system platform board for communication infrastructure applications that demonstrates the Direct to RF (DRF) transmitter and observation receiver architecture. Using high sample rate RFDAC(s) and RFADC(s), a number of components in previous generation transmitters can be eliminated, such as mixers, modulators, IF amplifiers and filters. The objective being to bring the ADC or DAC as close to the antenna as possible, leading to possibly more cost effective and efficient communications solution.

It is composed of multi-GSPS RF ADC and DAC, AD9625 and AD9162 respectively. The transmit path contains a balun, low pass filter, gain block and variable attenuation to produce an output appropriate for a power amplifier module. Along the observation path, the PA output is coupled back into the board through a variable attenuator, a balun and finally the ADC. Clock management is taken care of on board; all the necessary clocks are generated from a reference. Power management is present as well.

• Input voltage range: 2.3 V to 6.5 V
• Output current range: 0 mA to 2 A (500 mA for ADM7170, 1 A for ADM7171, 2 A for ADM7172)
• Output voltage accuracy: ±0.75% for ADM7170, −0.5%/+1% for ADM7171/ADM7172
• Operating temperature range: −40°C to +125°C
• Output voltage can also be adjusted up with two external resistors from any fixed output voltage option
• V_OUT = V_OUT(FIXED) × (1 + R1/R2)

The ADM7170ACP-EVALZ/ADM717Q1CP-EVALZ/ ADM7172ACP-EVALZ is an evaluation board used to demonstrate the functionality of the ADM7170, ADM7171, and ADM7172 linear regulators.

Simple device measurements, such as line and load regulation, dropout, and ground current, can be demonstrated with just a single voltage source, a voltmeter, an ammeter, and load resistors.

• Complete hardware and software required to evaluate ADA4355 micro-module
• Only four connections required
• 12V power, 5V power, USB, fiber under test
• All system control and measurement options provided via intuitive, user-friendly GUI

The ADA4355 is a complete, high performance, current input µModule^®. For space savings, the ADA4355 includes all required active and passive components to comprise a complete current-to-bits data acquisition channel supporting small form-factor optical modules as well as multi-channel systems.

The high-speed TIA of the device supports 10 ns pulse widths, allowing high spatial resolution for time-of-flight measurements. Additionally, the ADA4355 includes three TIA gain (T_Z) settings to maximize dynamic range. An internal, selectable, analog low-pass filter (LPF) can limit the device bandwidth with a corner frequency of 100 MHz to minimize broadband noise while also serving as an anti-aliasing filter for the 125 MSPS ADC. For lower bandwidth signals or wider signal pulses (e.g. 20μs or larger), the filter can be set to a corner frequency of 1.0 MHz to provide additional noise reduction.

The 14-bit ADC converts the amplified voltage signal at a rate of up to 125 MSPS and outputs the digitized signals through two serial, low voltage differential signaling (LVDS) data lanes, operating at rates of up to 1 Gbps per lane. The data clock output (DCO) operates at frequencies of up to 500 MHz and supports double data rate (DDR) operation.

The ADA4355 exhibits fast overdrive recovery from a large input current signal and is available in a 12 mm × 6mm CSP_BGA package with a −40°C to +85°C operating temperature range.

Applications

• Current-to-voltage Conversion
• Chemical analyzers
• Mass spectroscopy
• Time of Flight (ToF)
• Fiber optic sensing

• +26 dB of Rx Signal Gain
• 50 ohm Input and Output Impedance
• Overvoltage Input Protection
• SMA Input and Output Connectors
• USB Powered

• 10 GHz to 10.5 GHZ Beamsteering Platform
• 360 degree Phase Shift w/ 2.8 Degree Resolution
• 31 dB Amplitude Tuning Range w/ 0.5 dB Resolution.
• 8-Element Linear Array Antenna
• Digitized with PlutoSDR
• Runs directly on a Raspberry Pi

• +25 dB of Rx Signal Gain
• 50 ohm Input and Output Impedance
• Overvoltage Input Protection
• SMA Input and Output Connectors
• USB Powered

• Optimized to Receive the 433MHz ISM Band
• Receive Gain of 40dB
• Overvoltage Protection Circuit with Automatic Turn off/on
• Powered from a USB cable