ADP5073
Info : RECOMMENDED FOR NEW DESIGNS
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ADP5073

1.2 A, DC-to-DC Inverting Regulator

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 1
1ku List Price Starting From $1.59
Features
  • Wide input voltage range:
    2.85 V to 15 V
  • Adjustable negative output to VIN − 39 V
  • Integrated 1.2 A main switch
  • 1.2 MHz/2.4 MHz switching frequency with optional external frequency synchronization from 1.0 MHz to 2.6 MHz
  • Resistor programmable soft start timer
  • Slew rate control for lower system noise
  • Precision enable control
  • Power-good output
  • UVLO, OCP, OVP, and TSD protection
  • 3 mm × 3 mm, 16-lead LFCSP
  • −40°C to +125°C junction temperature
  • Supported by the ADIsimPower tool set
Additional Details
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The ADP5073 is a high performance dc-to-dc inverting regulator used to generate negative supply rails.

The input voltage range of 2.85 V to 15 V supports a wide variety of applications. The integrated main switch enables the generation of an adjustable negative output voltage down to 39 V below the input voltage.

The ADP5073 operates at a pin selected 1.2 MHz/2.4 MHz switching frequency. The ADP5073 can synchronize with an external oscillator from 1.0 MHz to 2.6 MHz to ease noise filtering in sensitive applications. The regulator implements programmable slew rate control circuitry for the MOSFET driver stage to reduce electromagnetic interference (EMI).

The ADP5073 includes a fixed internal or resistor programmable soft start timer to prevent inrush current at power-up. During shutdown, the regulator completely disconnects the load from the input supply to provide a true shutdown. A power-good pin is available to indicate the output is stable.

Other key safety features in the ADP5073 include overcurrent protection (OCP), overvoltage protection (OVP), thermal shutdown (TSD), and input undervoltage lockout (UVLO).

The ADP5073 is available in a 16-lead LFCSP and is rated for a −40°C to +125°C operating junction temperature range.

APPLICATIONS

  • Bipolar amplifiers, ADCs, digital-to-analog converters (DACs), and multiplexers
  • High speed converters
  • Radio frequency (RF) power amplifier (PA) bias
  • Optical modules
Part Models 1
1ku List Price Starting From $1.59

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADP5073ACPZ-R7
  • HTML
  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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AD-FMCOMMS11-EBZ

Direct RF to Baseband Transmit Radio

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AD-FMCOMMS11-EBZ

Direct RF to Baseband Transmit Radio

Direct RF to Baseband Transmit Radio

Features and Benefits

  • 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

Product Detail

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.

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EVAL-ADP5073

ADP5073 Evaluation Board

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EVAL-ADP5073

ADP5073 Evaluation Board

ADP5073 Evaluation Board

Product Detail

The ADP5073CP-EVALZ evaluation board is used to demonstrate the functionality of the ADP5073 dc-to-dc converter.

Simple device measurements, such as line regulation, load regulation and efficiency, can be evaluated with the board. Device features, including selectable operating frequency, soft start and slew rate control, may be demonstrated. The board has been designed to show the smallest footprint layout that can be accomplished with this part.

For more details about the dc-to-dc converter, refer to the ADP5073 datasheet.

Tools & Simulations

Tools & Simulations 3

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Reference Designs

Reference Designs 1

Figure 1. CN0511 Functional Block Diagram

DC to 5.5 GHz Signal Generator with +/-0.5 dB Calibrated Output Power

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CN0511

DC to 5.5 GHz Signal Generator with +/-0.5 dB Calibrated Output Power

CN0511

Circuits from the lab

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DC to 5.5 GHz Signal Generator with +/-0.5 dB Calibrated Output Power

Features and Benefits

  • DC to 5.5 GHz Single Tone Generator
  • +/- 0.5 dB  Wideband Amplitude Calibration from 0 dBm to -40 dBm
  • 48-Bit Frequency Tuning Resolution (~43 uHz)
  • Onboard VCXO for Quick Bring Up
  • Compatible with Raspberry Pi 3B+, 4, Zero W, Zero 2W
View Detailed Reference Design external link

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