ADM7170
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ADM7170

6.5 V, 500 mA, Ultralow Noise, High PSRR, Fast Transient Response CMOS LDO

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 9
1ku List Price Starting From $1.13
Features
  • Input voltage range: 2.3 V to 6.5 V
  • Maximum load current: 500 mA
  • Low noise: 5 μV rms independent of output voltage at 100 Hz to 100 kHz
  • Fast transient response: 1.5 μs for 1 mA to 500 mA load step
  • 60 dB PSRR at 100 kHz
  • Low dropout voltage: 42 mV at 500 mA load, VOUT = 3 V
  • Initial accuracy: ±0.75%
  • Accuracy over line, load, and temperature: ±1.25%
  • Quiescent current, IGND = 0.7 mA at no load
  • Low shutdown current: 0.25 μA at VIN = 5 V
  • Stable with small 4.7 μF ceramic output capacitor
  • Adjustable and fixed output voltage options: 1.2 V to 5.0 V
  • Adjustable output from 1.2 V to VIN − VDO
  • Precision enable
  • Adjustable soft start
  • 8-lead, 3 mm × 3 mm LFCSP package
  • Supported by ADIsimPower tool
Additional Details
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The ADM7170 is a CMOS, low dropout linear regulator (LDO) that operates from 2.3 V to 6.5 V and provides up to 500 mA of output current. This high output current LDO is ideal for regulation of high performance analog and mixed signal circuits operating from 6 V down to 1.2 V rails. Using an advanced proprietary architecture, the device provides high power supply rejection and low noise, and achieves excellent line and load transient response with just a small 4.7 μF ceramic output capacitor. Load transient response is typically 1.5 μs for a 1 mA to 500 mA load step.

The ADM7170 is available in 17 fixed output voltage options. The following voltages are available from stock: 1.3 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, 4.2 V, and 5.0 V. Additional voltages that are available by special order are: 1.5 V, 1.85 V, 2.0 V, 2.2 V, 2.7 V, 2.75 V, 2.8 V, 2.85 V, 3.8 V, and 4.6 V. An adjustable version is also available that allows output voltages that range from 1.2 V to VIN − VDO with an external feedback divider.

Inrush current can be controlled by adjusting the start-up time via the soft start pin. The typical start-up time with a 1 nF soft start capacitor is about 1.0 ms.

The ADM7170 regulator output noise is 5 μV rms independent of the output voltage. The ADM7170 is available in an 8-lead, 3 mm × 3 mm LFCSP, making it not only a very compact solution, but also providing excellent thermal performance for applications requiring up to 500 mA of output current in a small, low profile footprint.

Applications

  • Regulation to noise sensitive applications: ADC and DAC circuits, precision amplifiers, PLLs/VCOs, and clocking ICs
  • Communications and infrastructure
  • Medical and healthcare
  • Industrial and instrumentation
Part Models 9
1ku List Price Starting From $1.13

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADM7170ACPZ-1.3-R7
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ADM7170ACPZ-1.8-R7
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ADM7170ACPZ-2.5-R7
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ADM7170ACPZ-3.0-R7
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ADM7170ACPZ-3.3-R7
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ADM7170ACPZ-4.2-R7
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ADM7170ACPZ-5.0-R7
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ADM7170ACPZ-R2
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ADM7170ACPZ-R7
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 4

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AD-PAARRAY3552R-SL

RF Front-end GaN Power Amplifier Biasing, Protection, and Control Reference Design

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AD-PAARRAY3552R-SL

RF Front-end GaN Power Amplifier Biasing, Protection, and Control Reference Design

RF Front-end GaN Power Amplifier Biasing, Protection, and Control Reference Design

Features and Benefits

  • 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

Product Detail

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
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EVAL-ADA4355

Evaluation System for the ADA4355

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EVAL-ADA4355

Evaluation System for the ADA4355

Evaluation System for the ADA4355

Features and Benefits

  • 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

Product Detail

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 (TZ) 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
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EVAL-ADM7170

ADM7170/ADM7171/ADM7172 Evaluation Board

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EVAL-ADM7170

ADM7170/ADM7171/ADM7172 Evaluation Board

ADM7170/ADM7171/ADM7172 Evaluation Board

Features and Benefits

  • 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
  • VOUT = VOUT(FIXED) × (1 + R1/R2)

Product Detail

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.
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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.

Tools & Simulations

Tools & Simulations 2

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 4

Figure 1. CN0521 Simplified Block Diagram

USB-Powered, 2.4 GHz RF Low Noise Amplifier Receiver with Overpower Protection Circuit

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CN0521

USB-Powered, 2.4 GHz RF Low Noise Amplifier Receiver with Overpower Protection Circuit

CN0521

Circuits from the lab

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USB-Powered, 2.4 GHz RF Low Noise Amplifier Receiver with Overpower Protection Circuit

Features and Benefits

  • +26 dB of Rx Signal Gain
  • 50 ohm Input and Output Impedance
  • Overvoltage Input Protection
  • SMA Input and Output Connectors
  • USB Powered
View Detailed Reference Design external link

Design & Integration Tools

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8.71 M

Figure 1. CN0566 Simplified Block Diagram

Phased Array (Phaser) Development Platform

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CN0566

Phased Array (Phaser) Development Platform

CN0566

Circuits from the lab

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Phased Array (Phaser) Development Platform

Features and Benefits

  • 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
View Detailed Reference Design external link
Figure 1. CN0518 Simplified Block Diagram

USB-Powered, 915 MHz RF Low Noise Amplifier Receiver with Overpower Protection Circuit

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CN0518

USB-Powered, 915 MHz RF Low Noise Amplifier Receiver with Overpower Protection Circuit

CN0518

Circuits from the lab

tooltip Info:Circuits from the lab
USB-Powered, 915 MHz RF Low Noise Amplifier Receiver with Overpower Protection Circuit

Features and Benefits

  • +25 dB of Rx Signal Gain
  • 50 ohm Input and Output Impedance
  • Overvoltage Input Protection
  • SMA Input and Output Connectors
  • USB Powered
View Detailed Reference Design external link

Design & Integration Tools

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8.21 M

Figure 1. CN0555 Simplified Block Diagram

USB-Powered, 433.92 MHz RF Low Noise Amplifier Receiver with Overpower Protection

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CN0555

USB-Powered, 433.92 MHz RF Low Noise Amplifier Receiver with Overpower Protection

CN0555

Circuits from the lab

tooltip Info:Circuits from the lab
USB-Powered, 433.92 MHz RF Low Noise Amplifier Receiver with Overpower Protection

Features and Benefits

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

Design & Integration Tools

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ZIP

3.54 M

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