MAX1659

PRODUCTION

350mA, 16.5V Input, Low-Dropout Linear Regulators

Battery-Saving Linear Regulator Consumes Only 30µA and Delivers 350mA

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • Wide Input Voltage Range: 2.7V to 16.5V
  • Low, 490mV Dropout at 350mA Output Current (MAX1659)
  • 30µA Supply Current
  • 1µA Max Shutdown Current
  • High-Power (1.2W) 8-Pin SO Package
  • Dual Mode Operation Output:
    • Fixed 3.3V (MAX1658)
    • Fixed 5.0V (MAX1659)
    • or Adjustable (1.25V to 16V)
  • Thermal Overload Protection
  • Current-Limit Protection
  • Reverse Battery Protection
MAX1659
350mA, 16.5V Input, Low-Dropout Linear Regulators
MAX1658, MAX1659: Typical Operating Circuit
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Documentation

Data Sheet 1

User Guide 12

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Software Resources

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Evaluation Kits

MAXSANTAFEEVSYS

Evaluation Kit for the MAXREFDES5 4-Channel Analog Front End

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Features and Benefits

  • Self-Contained Easy Evaluation Kit for MAXREFDES5
  • Optimized AFE with Common Analog Input Ranges
  • Small Form Factor Test Platform
  • All Relevant Reference Design Files Included

Product Details

The MAXSANTAFEEVSYS kit allows users to quickly demonstrate and evaluate the functionality of the MAXREFDES5 4-channel 16-bit, isolated analog front end (AFE) reference design without the need for a bench power supply, signal generator equipment, or Xilinx development kit. The reference design board connects to a PC through an included USB-to-SPI adapter that provides both power and data communication to the board. To test the AFE reference design, a USB-powered signal generator board utilizing one of Maxim’s digital-to-analog converters (DAC) is also included. A Windows®-based graphical user interface (GUI) communicates with the boards for generating various analog signal test patterns and simplified access to AFE measurement data. 

The MAXREFDES5 reference design is a 4-channel analog front end (AFE) that accepts -10V to +10V, 0V to 10V, and 4–20mA current loop signals. The design integrates a 16-bit ADC with multirange input programmability (MAX1301) plus low-noise, high-impedance analog buffers (MAX9632) on two of the input channels and an ultra-high precision 4.096V voltage reference (MAX6126) to achieve maximum performance from the 16-bit system. A 600VRMS digital isolator (MAX14850) and 3W transformer driver (MAX256) provide the necessary isolated data and power connections to the host system. LDO regulators (MAX1659) provide regulated +12V, -12V, and 5V power rails to the analog front end.

EV Kit Contents
  • MAXREFDES5 4-Channel AFE Board
  • USB2PMB1 USB to Pmod™ Type 2A Adapter Board
  • MAX5216DACLITE Signal Generator Board
  • Two (2) Wires with Hook Clips (1 Red and 1 Black)
  • Two (2) USB Type A Male to USB Type B Mini Cables
  • USB Flash Drive with Documentation, GUI Applications, and USB Drivers

 

Applications

  • Industrial Data Acquisition
  • Programmable Automation Controllers (PAC)
  • Programmable Logic Controllers (PLC)
  • Proportional-Integral-Derivative (PID) Controllers
MAXSANTAFEEVSYS
Evaluation Kit for the MAXREFDES5 4-Channel Analog Front End

Reference Designs

MAXREFDES4
MAXREFDES4
This 16-bit high-accuracy industrial analog input design accepts a 4–20mA current loop or a 0.2V to 4.096V voltage signal as input and provides a digital SPI output. The data path and power is fully isolated.
MAXREFDES4 (Campbell) Circuits from the lab

16-Bit High-Accuracy 4-20mA Input Isolated Analog Front End (AFE)

View Detailed Reference Design

Features and Benefits

  • High accuracy
  • 4–20mA current loop input
  • 0.2V to 4.096V input range
  • Isolated power and data
  • Small printed circuit board (PCB) area
  • Device drivers
  • Example C source code
  • Pmod™-compatible form factor
maxrefdes5fig00
maxrefdes5fig00
maxrefdes5fig01
Santa Fe (MAXREFDES5) Circuits from the lab

16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)

View Detailed Reference Design

Features and Benefits

  • High accuracy
  • ±10V, 0 to 10V, and 4–20mA Inputs
  • Isolated power and data
  • Small printed circuit board (PCB) area
  • Device drivers
  • Example C source code
  • Pmod™-compatible form factor

MAXREFDES60
MAXREFDES60
This single channel analog output reference design is in the micro PLC form factor. The on-board microcontroller controls a 16-bit DAC to produce a high accuracy 0-10V output. The design features isolated power and data.
MAXREFDES60 Circuits from the lab

16-Bit Analog Output Micro PLC

View Detailed Reference Design

Features and Benefits

  • High accuracy
  • 0 to 10V voltage output with ±20% overrange
  • Isolated power and data
  • Micro PLC form factor
  • Device drivers
  • Example C source code
  • Test data
MAXREFDES9 System Block Diagram
MAXREFDES9 System Block Diagram
MAXREFDES9 Hardware
MAXREFDES9 Circuits from the lab

3.3V to 15V Input, ±15V (±12V) Output, Isolated Power Supply

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Features and Benefits

Features

  • Isolated power
  • ±15V (±12V) outputs
  • Small printed-circuit board (PCB) area
  • Pmod™-compatible form factor
MAXREFDES30
MAXREFDES30
MAXREFDES30
MAXREFDES30 Circuits from the lab

8-Channel Simultaneous-Sampling Analog Front End

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Features and Benefits

  • High precision, 8-channel, simultaneous-sampling inputs
  • High-speed 250ksps sampling rate
  • High-accuracy 16-bit resolution
  • Device drivers
  • Example C source code
  • Configuration files for ZedBoard™ platform
  • FMC-compatible
MAXREFDES61 - Block Diagram
MAXREFDES61 - Block Diagram
MAXREFDES61
MAXREFDES61 Circuits from the lab

16-Bit Four-Channel Analog Input Micro PLC Card

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Features and Benefits

  • High accuracy
  • -10 to +10V ±20% voltage inputs
  • 4 to 20mA +20% current inputs
  • Isolated power and data
  • Micro PLC form factor
  • Device drivers
  • Example C source code
  • Test data
MAXREFDES11 - Block Diagram
MAXREFDES11 - Block Diagram
MAXREFDES11
MAXREFDES11 (Fresno) Circuits from the lab

16-Bit High-Accuracy 0 to 10V Input Isolated Analog Front End (AFE)

View Detailed Reference Design

Features and Benefits

  • High accuracy
  • 0 to 10V input range
  • Isolated power and data
  • Small printed circuit board (PCB) area
  • Device drivers
  • Example C source code
  • Pmod™-compatible form factor
MAXREFDES6
MAXREFDES6
MAXREFDES6 - Design Block Diagram
MAXREFDES6 (Fremont) Circuits from the lab

16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)

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Features and Benefits

Features

  • Applications
  • High-accuracy analog input
  • High impedance
  • 0 to 100mV input range
  • Isolated data path
  • Small printed-circuit board (PCB) area
  • Device drivers
  • Example C source code
  • Pmod™-compatible form factor

Applications

  • Low-voltage output sensors
  • Process control
  • Medical

Competitive Advantages

  • Unique single-ended architecture
  • Optimized board size
  • Magnetically immune data path isolation
MAXREFDES8 - Design Block Diagram
MAXREFDES8 - Design Block Diagram
MAXREFDES8
MAXREFDES8 (Riverside) Circuits from the lab

3.3V Input, 12V (15V) Output Isolated Power Supply

View Detailed Reference Design

Features and Benefits

Features

  • Isolated power
  • 12V (15V) output
  • Small printed circuit board (PCB) area
  • Pmod™-compatible form factor

Applications

  • Industrial sensors
  • Process control
  • Industrial automation
  • Medical
MAXREFDES4 (Campbell)
16-Bit High-Accuracy 4-20mA Input Isolated Analog Front End (AFE)
MAXREFDES4
This 16-bit high-accuracy industrial analog input design accepts a 4–20mA current loop or a 0.2V to 4.096V voltage signal as input and provides a digital SPI output. The data path and power is fully isolated.
Santa Fe (MAXREFDES5)
16-Bit High Accuracy Multi-Input Isolated Analog Front End (AFE)
maxrefdes5fig00
maxrefdes5fig01
Lakewood (MAXREFDES7)
3.3V Input, ±12V (±15V) Output Isolated Power Supply
MAXREFDES7
MAXREFDES7 Design Block Diagram
MAXREFDES60
16-Bit Analog Output Micro PLC
MAXREFDES60
This single channel analog output reference design is in the micro PLC form factor. The on-board microcontroller controls a 16-bit DAC to produce a high accuracy 0-10V output. The design features isolated power and data.
MAXREFDES9
3.3V to 15V Input, ±15V (±12V) Output, Isolated Power Supply
MAXREFDES9 System Block Diagram
MAXREFDES9 Hardware
MAXREFDES30
8-Channel Simultaneous-Sampling Analog Front End
MAXREFDES30
MAXREFDES30
MAXREFDES61
16-Bit Four-Channel Analog Input Micro PLC Card
MAXREFDES61 - Block Diagram
MAXREFDES61
MAXREFDES11 (Fresno)
16-Bit High-Accuracy 0 to 10V Input Isolated Analog Front End (AFE)
MAXREFDES11 - Block Diagram
MAXREFDES11
MAXREFDES6 (Fremont)
16-Bit, High-Accuracy, 0 to 100mV Input, Isolated Analog Front-End (AFE)
MAXREFDES6
MAXREFDES6 - Design Block Diagram
MAXREFDES8 (Riverside)
3.3V Input, 12V (15V) Output Isolated Power Supply
MAXREFDES8 - Design Block Diagram
MAXREFDES8

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