ADM709MARZ
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Analog Devices Inc. ADM709MARZ

Manufacturer No:
ADM709MARZ
Manufacturer:
Analog Devices Inc.
Package:
Tube
Description:
IC SUPERVISOR 1 CHANNEL 8SOIC
Delivery:
Payment:
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Product Introduction

Overview

The ADM709MARZ, produced by Analog Devices Inc., is a power supply monitor integrated circuit designed to generate a system reset during power-up, power-down, and brownout conditions. This component is particularly useful in ensuring the stable operation of microprocessors and other critical systems by monitoring the supply voltage and initiating a reset when the voltage falls below a specified threshold.

Key Specifications

Parameter Min Typ Max Units Test Conditions/Comments
VCC Operating Voltage Range 1.0 - 5.5 V TA = 0°C to +70°C
Supply Current 35 85 110 µA VCC < 3.6 V, TA = 0°C to +70°C
Reset Threshold 4.25 4.40 4.50 V ADM709M
VCC to RESET Delay - - 20 µs VCC = Reset Threshold max-min
RESET Active Time-Out Period 140 280 380 ms VCC = Reset Threshold max, VCC Rising
Operating Temperature -40 - +85 °C -
Package - - - - 8-SOIC (0.154", 3.90mm Width)

Key Features

  • Precision Supply Voltage Monitor: Available for +5 V, +3.3 V, and +3 V supply monitoring.
  • Low Quiescent Current: Typically 35 µA.
  • Power-On Reset Pulse: RESET output is held low for 140 ms after VCC rises above the threshold.
  • Low Cost: Economical solution for power supply monitoring.
  • Compact Packaging: Available in 8-pin DIP and SOIC packages.
  • Active Low Reset Output: RESET output remains operational with VCC as low as 1 V.

Applications

  • Microprocessor Systems: Ensures stable operation of microprocessors during power-up, power-down, and brownout conditions.
  • Computers and Controllers: Used in various computing and control systems to monitor power supply integrity.
  • Intelligent Instruments: Suitable for use in intelligent instruments that require reliable power supply monitoring.
  • Critical Power Monitoring: Ideal for applications where power supply stability is critical, such as in automotive systems.

Q & A

  1. What is the primary function of the ADM709MARZ?

    The primary function of the ADM709MARZ is to monitor the power supply voltage and generate a system reset during power-up, power-down, and brownout conditions.

  2. What are the available voltage threshold levels for the ADM709MARZ?

    The ADM709MARZ is available with voltage threshold levels suitable for +5 V, +3.3 V, and +3 V supply monitoring.

  3. What is the typical quiescent current of the ADM709MARZ?

    The typical quiescent current of the ADM709MARZ is 35 µA.

  4. How long is the RESET output held low after VCC rises above the threshold?

    The RESET output is held low for a minimum of 140 ms after VCC rises above the threshold.

  5. What is the operating temperature range of the ADM709MARZ?

    The operating temperature range of the ADM709MARZ is -40°C to +85°C.

  6. In what package types is the ADM709MARZ available?

    The ADM709MARZ is available in 8-pin DIP and SOIC packages.

  7. Is the RESET output active high or active low?

    The RESET output is active low.

  8. What is the minimum VCC voltage at which the RESET output remains operational?

    The RESET output remains operational with VCC as low as 1 V.

  9. What are some common applications of the ADM709MARZ?

    The ADM709MARZ is commonly used in microprocessor systems, computers, controllers, intelligent instruments, and critical power monitoring applications.

  10. How does the ADM709MARZ handle brownout conditions?

    The ADM709MARZ generates a system reset during brownout conditions when the supply voltage falls below the specified threshold.

Product Attributes

Type:Simple Reset/Power-On Reset
Number of Voltages Monitored:1
Voltage - Threshold:4.4V
Output:Push-Pull, Totem Pole
Reset:Active Low
Reset Timeout:140ms Minimum
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
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Similar Products

Part Number ADM709MARZ ADM709RARZ ADM709TARZ ADM709SARZ ADM709LARZ ADM709MANZ ADM709MAR
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active Active Active Obsolete Obsolete
Type Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset
Number of Voltages Monitored 1 1 1 1 1 1 1
Voltage - Threshold 4.4V 2.63V 3.08V 2.93V 4.65V 4.4V 4.4V
Output Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole
Reset Active Low Active Low Active Low Active Low Active Low Active Low Active Low
Reset Timeout 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Through Hole Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-DIP (0.300", 7.62mm) 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-PDIP 8-SOIC

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