ADM709TARZ

Product Overview

• Category: Integrated Circuit
• Use: Voltage Supervisor
• Characteristics: Precision, Low Power Consumption
• Package: 8-Pin SOIC (Small Outline Integrated Circuit)
• Essence: Monitors and controls the voltage level of a power supply
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V, 4.63V
• Accuracy: ±1.5%
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ADM709TARZ has a total of 8 pins, which are labeled as follows:

1. GND: Ground
2. RESET: Active-Low Reset Output
3. MR: Manual Reset Input
4. VCC: Positive Supply Voltage
5. TH: Threshold Voltage Selection Input
6. NC: No Connection
7. NC: No Connection
8. NC: No Connection

Functional Features

• Voltage Monitoring: The ADM709TARZ continuously monitors the input voltage and asserts the reset output when the voltage falls below the threshold.
• Manual Reset: The manual reset input allows for an external signal to assert the reset output, regardless of the monitored voltage level.
• Precision: The device offers accurate voltage monitoring with a low tolerance of ±1.5%.
• Low Power Consumption: With a quiescent current of only 10µA, the ADM709TARZ minimizes power consumption.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring - Low power consumption - Manual reset capability

Disadvantages: - Limited threshold voltage options - No built-in hysteresis

Working Principles

The ADM709TARZ operates by comparing the input voltage with a selected threshold voltage. When the input voltage drops below the threshold, the reset output is asserted. The manual reset input allows for an external signal to override the voltage monitoring and assert the reset output. The device operates with low power consumption, making it suitable for battery-powered applications.

Application Field Plans

The ADM709TARZ finds applications in various fields, including:

1. Power Supply Monitoring: It ensures stable operation of microcontrollers, DSPs, and other digital systems by providing a reliable reset signal when the power supply voltage falls below the specified level.
2. Battery-Powered Devices: The low power consumption of the ADM709TARZ makes it ideal for use in portable devices, such as smartphones, tablets, and wearable electronics.
3. Industrial Control Systems: It can be used in industrial control systems to monitor power supply voltages and initiate appropriate actions in case of voltage fluctuations or failures.

Alternative Models

Other alternative models that offer similar functionality to the ADM709TARZ include:

1. MAX809: Voltage Supervisors from Maxim Integrated.
2. MCP100: Microcontroller Supervisory Circuits from Microchip Technology.
3. TPS3808: Precision Voltage Supervisors from Texas Instruments.

These alternative models provide comparable features and can be considered based on specific application requirements.

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