ADP1740
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ADP1740

2 A, Low VIN Dropout, Linear Regulator

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LTspice ADP1740 - LDO Linear Regulators Download 1.09 KB
Part Models 8
1ku List Price Starting From $1.33
Features
  • Maximum output current: 2 A
  • Input voltage range: 1.6 V to 3.6 V
  • Low shutdown current: 2 μA
  • Low dropout voltage:
    160 mV @ 2 A load
  • Initial accuracy: ±1%
  • Accuracy over line, load, and temperature: ±2%
  • 7 fixed output voltage options with soft start:
    0.75 V to 2.5 V (ADP1740)
  • Adjustable output voltage options with soft start: 0.75 V to 3.3 V (ADP1741)
  • High PSRR
    65 dB @ 1 kHz
    65 dB @ 10 kHz
    54 dB @ 100 kHz
  • 23 μV rms at 0.75 V output
  • Stable with small 4.7 μF ceramic output capacitor
  • Please see data sheet for additional features
Additional Details
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The ADP1740/ADP1741 are CMOS, low dropout linear regulators that operate from 1.6 V to 3.6 V and provide up to 2 A of output current. These low VIN / VOUT LDOs are ideal for regulation of nanometer FPGA geometries operating from 2.5V down to 1.8V I/O rails, and powering core voltages down to 0.75V. Using an advanced, proprietary architecture, the ADP1740/ADP1741 provide high power supply rejection ratio (PSRR) and low noise, and achieve excellent line and load transient response with only a small 4.7 μF ceramic output capacitor.

The ADP1740 is available in seven fixed output voltage options. The ADP1741 is an adjustable version that allows output voltages ranging from 0.75 V to 3.3 V via an external divider. The ADP1740/ADP1741 allow an external soft start capacitor to be connected to program the startup. A digital power-good output allows power system monitors to check the health of the output voltage.

The ADP1740/ADP1741 are available in a 16-lead, 4 mm × 4 mm LFCSP, making them not only very compact solutions, but also providing excellent thermal performance for applications that require up to 2 A of output current in a small, low profile footprint..

APPLICATIONS

  • Server computers
  • Memory components
  • Telecommunications equipment
  • Network equipment
  • DSP/FPGA/microprocessor supplies
  • Instrumentation equipment/data acquisition systems
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LTspice ADP1740 - LDO Linear Regulators Download 1.09 KB
Part Models 8
1ku List Price Starting From $1.33
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ADP1740

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Data Sheet

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UPDATED 03/05/2008
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ADP1740/ADP1741: 2 A, Low VIN, Low Dropout Linear Regulator Data Sheet (Rev.H)

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Application Note

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UPDATED 04/27/2010
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AN-1072: How to Successfully Apply Low Dropout Regulators redirect icon

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UPDATED 11/08/2010
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AN-1072: 在系统中成功运用低压差稳压器 (Rev.0) redirect icon

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UPDATED 04/27/2010
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低ドロップアウト・レギュレータの活用方法 (Rev.AN-1072) redirect icon

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Evaluation Design File

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UPDATED 11/19/2008
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ADP1740/ADP1741 Evaluation Board redirect icon

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UPDATED 11/19/2008
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ADP1740/ADP1741评估板 redirect icon

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UPDATED 06/17/2015
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Documentation

Solutions Bulletin & Brochure 2

Ultralow Noise, High Rejection Low Dropout Regulators
Linear Low Dropout (LDO) Regulator Solutions

Analog Dialogue 6

Improved DAC Phase Noise Measurements Enable Ultralow Phase Noise DDS Applications
Analyzing and Managing the Impact of Supply Noise and Clock Jitter on High Speed DAC Phase Noise
Multirail Power Supply Design for Successful Application Boards—Part 2: Layout Tips and Tricks
Multirail Power Supply Design for Successful Application Boards—Part 1: Strategy
How to Successfully Apply Low-Dropout Regulators
Minimum Load Current Operation—Zero-Load Operation

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2016-04-06

02:19

Lowest Noise LDOs Enable Cutting Edge Signal Chain Performance

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADP1740ACPZ-0.75R7 16-Lead LFCSP (4mm x 4mm w/ EP) external-link
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  • Material Declaration external-link
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ADP1740ACPZ-1.0-R7 16-Lead LFCSP (4mm x 4mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
ADP1740ACPZ-1.1-R7 16-Lead LFCSP (4mm x 4mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
ADP1740ACPZ-1.2-R7 16-Lead LFCSP (4mm x 4mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
ADP1740ACPZ-1.3-R7 16-Lead LFCSP (4mm x 4mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
ADP1740ACPZ-1.5-R7 16-Lead LFCSP (4mm x 4mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
ADP1740ACPZ-1.8-R7 16-Lead LFCSP (4mm x 4mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
ADP1740ACPZ-2.5-R7 16-Lead LFCSP (4mm x 4mm w/ EP) external-link
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  • Reliablity Data external-link

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May 5, 2014

- 14_0020

Conversion of 4x4mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.

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Nov 8, 2012

- 12_0290

ADP1740/ADP1741, ADP1752/ADP1753, ADP1754/ADP1755 Data Sheet Correction

ADP1740ACPZ-0.75R7

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ADP1740ACPZ-1.0-R7

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ADP1740ACPZ-1.1-R7

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ADP1740ACPZ-1.2-R7

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ADP1740ACPZ-1.5-R7

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ADP1740ACPZ-1.8-R7

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ADP1740ACPZ-2.5-R7

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PCN12_0290_Form

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Conversion of 4x4mm body Size LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to Amkor Philippines.

ADP1740ACPZ-0.75R7

PRODUCTION

ADP1740ACPZ-1.0-R7

PRODUCTION

ADP1740ACPZ-1.1-R7

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ADP1740ACPZ-1.2-R7

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ADP1740ACPZ-1.5-R7

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ADP1740ACPZ-1.8-R7

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ADP1740ACPZ-2.5-R7

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PCN14_0020_Form

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Material_Report

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Detailed Change Description

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Package Outline Drawing

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ADP1740/ADP1741, ADP1752/ADP1753, ADP1754/ADP1755 Data Sheet Correction

ADP1740ACPZ-0.75R7

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ADP1740ACPZ-1.0-R7

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ADP1740ACPZ-1.1-R7

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ADP1740ACPZ-1.2-R7

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ADP1740ACPZ-1.5-R7

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ADP1740ACPZ-1.8-R7

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ADP1740ACPZ-2.5-R7

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PCN12_0290_Form

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Material_Report

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Revised Datasheet Specification

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Revised Datasheet Specification

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Revised Datasheet Specification

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Detailed Change Description

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Software & Part Ecosystem

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ADP1741
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PRODUCTION

2 A, Low VIN, Dropout, CMOS Linear Regulator

Evaluation Kits 4

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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

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AD-FMCOMMS11-EBZ
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
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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.

Resources

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AD-FMCOMMS11-EBZ User Guide reference design link

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AD-FMCOMMS11-EBZ Design & Integration Files Download

6.62 M

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Software

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JESD204 Interface Framework reference design link

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AD-FMCDAQ2-EBZ

AD-FMCDAQ2-EBZ Evaluation Board

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AD-FMCDAQ2-EBZ

AD-FMCDAQ2-EBZ Evaluation Board

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AD-FMCDAQ2-EBZ
AD-FMCDAQ2-EBZ Evaluation Board

Features and Benefits

  • Includes schematics, layout, BOM, Gerber files, HDL, Linux® drivers, IIO Oscilloscope, VisualANALOG
  • FMC-compatible form factor
  • Powered from FMC connector
  • Provides two channels of ADC and two channels of DAC with full synchronization capabilities
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Product Detail

The AD-FMCDAQ2-EBZ module is comprised of the AD9680 dual, 14-bit, 1.0 GSPS, JESD204B ADC, the AD9144 quad, 16-bit, 2.8 GSPS, JESD204B DAC, the AD9523-1 14-output, 1GHz clock, and power management components. It is clocked by an internally generated carrier platform via the FMC connector, comprising a completely self-contained data acquisition and signal synthesis prototyping platform. In an FMC footprint (84 mm × 69 mm), the module’s combination of wideband data conversion, clocking, and power closely approximates real-world hardware and software for system prototyping and design, with no compromise in signal chain performance.

Applications

  • Electronic test and measurement equipment
  • General-purpose software radios
  • Radar systems
  • Ultra wideband satellite receivers
  • Point-to-point communication systems

Resources

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WIKI

AD-FMCDAQ2-EBZ User Guide reference design link

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AD-FMCDAQ2-EBZ Design & Integration Files Download

4.1 M

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Software

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JESD204 Interface Framework reference design link

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AD-FMCOMMS1-EBZ

FPGA Mezzanine Card for Wireless Communications

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AD-FMCOMMS1-EBZ

FPGA Mezzanine Card for Wireless Communications

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AD-FMCOMMS1-EBZ
FPGA Mezzanine Card for Wireless Communications

Features and Benefits

  • Includes schematics, layout, BOM, Gerber files, HDL, Linux® drivers, IIO Oscilloscope, VisualANALOG
  • FMC-compatible form factor
  • Powered from FMC connector
  • Provides one channel of ADC and one channel of DAC with full synchronization capabilities
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Product Detail

This board is no longer available for ordering.

The AD-FMCOMMS1-EBZ high-speed analog module is designed to showcase the latest generation high-speed data converters. The AD-FMCOMMS1-EBZ provides the analog front-end for a wide range of compute-intensive FPGA-based radio applications.

The AD-FMCOMMS1-EBZ is an analog front end hardware platform that addresses a broad range of research, academic, industrial and defense applications. The AD-FMCOMMS1-EBZ enables RF applications from 400MHz to 4 GHz. The module is customizable to a wide range of frequencies by software without any hardware changes, providing options for GPS or IEEE 1588 Synchronization, and MIMO configurations.

When combined with the Xilinx ZYNQ® Software-Defined Radio Kit, AD-FMCOMMS1-EBZ enables a variety of wireless communications functions at the physical layer, from baseband to RF. With up to 4 GB of flash storage space, 512 MB of RAM, Gigabit Ethernet interface (depending on the base platform) and a Linux image built specifically for the AD-FMCOMMS1-EBZ, you can get everything you need for a easy out of the box experience. The platform offers enough flexibility for many applications, and supports streaming data, and standard web interfaces to analyze transmitted RF data.

Applications

  • Electronic test and measurement equipment
  • General-purpose software radios
  • Radar systems
  • Ultra wideband satellite receivers
  • Point to point communication systems

Resources

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WIKI

AD-FMCOMMS1-EBZ User Guide reference design link

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Software

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IIO Oscilloscope Application reference design link

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AD-FMCOMMS1-EBZ-Software reference design link

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EVAL-ADP1740

ADP1740 Evaluation Board

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EVAL-ADP1740

ADP1740 Evaluation Board

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EVAL-ADP1740
ADP1740 Evaluation Board
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Product Detail

These evaluation boards are used to demonstrate the functionality of the ADP1740/ADP1741 linear regulators.

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

Resources

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ADP1740/ADP1741 Evaluation Board Download

369 kB

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Evaluation Kits4

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AD-FMCOMMS11-EBZ

Direct RF to Baseband Transmit Radio
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AD-FMCDAQ2-EBZ

AD-FMCDAQ2-EBZ Evaluation Board
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AD-FMCOMMS1-EBZ

FPGA Mezzanine Card for Wireless Communications
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EVAL-ADP1740

ADP1740 Evaluation Board

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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ADP1740 - LDO Linear Regulators Download

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