LTC2992
Info : RECOMMENDED FOR NEW DESIGNS
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LTC2992

Dual Wide Range Power Monitor

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 24
1ku List Price Starting From $4.60
Features
  • Rail-to-Rail Input Range: 0V to 100V
  • Wide Input Supply Range: 2.7V to 100V
  • Measures Current, Voltage, and Power
  • Shunt Regulator for Supplies >100V
  • 8-/12-Bit ADCs with Less Than ±0.3% Total Unadjusted Error
  • Four General Purpose Inputs/Outputs Configurable as ADC Inputs
  • Continuous Scan and Snapshot Modes
  • Stores Minimum and Maximum Measurements
  • Alerts When Alarm Thresholds Exceeded
  • Shutdown Mode with IQ < 50μA
  • Split SDA Pin Eases Opto-Isolation
  • Available in 16-Lead 4mm × 3mm DFN and MSOP Packages
Additional Details
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The LTC2992 is a rail-to-rail system monitor that measures current, voltage, and power of two supplies. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The voltage measurement range of 0V to 100V is independent of the input supply. Two ADCs simultaneously measure each supply’s current. A third ADC monitors the input voltages and four auxiliary external voltages. Each supply’s current and power is added for total system consumption. Minimum and maximum values are stored and an overrange alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard I2C interface. Shutdown mode reduces current consumption to 25μA typically.

The LTC2992 I2C interface includes separate data input and output pins for use with standard or opto-isolated I2C connections. The LTC2992-1 has an inverted data output for use with inverting opto-isolator configurations.

Applications

  • Telecom Infrastructure
  • Industrial Equipment
  • Automotive
  • Computer Systems and Servers
Part Models 24
1ku List Price Starting From $4.60

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Feb 4, 2020

- 20_0132

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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DC2561A

LTC2992 Demo Board | Dual Wide Range Power Monitor

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DC2561A

LTC2992 Demo Board | Dual Wide Range Power Monitor

LTC2992 Demo Board | Dual Wide Range Power Monitor

Product Detail

Demonstration Circuit 2561A features the LTC2992, a rail-to-rail system monitor that measures current, voltage, and power of two supplies. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The voltage measurement range of 0V to 100V is independent of the input supply. Two ADCs simultaneously measure each supply's current. A third ADC monitors the input voltages and four auxiliary external voltages. Each supply's current and power is added for total system consumption. Minimum and maximum values are stored and an over range alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard l2C interface. Shutdown mode reduces power consumption to 25μA typically.

reference details image

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
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.

Linduino

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

Purchase Linduino

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