MAX4821ETP+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Level Translator
• Characteristics: High-speed, low-power, bidirectional voltage level translation
• Package: 20-pin TQFN (Thin Quad Flat No-Lead) package
• Essence: Translates logic-level signals between different voltage domains
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Logic Voltage Range: 1.65V to 5.5V
• Maximum Data Rate: 100 Mbps
• Number of Channels: 8
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX4821ETP+T has a total of 20 pins. The pin configuration is as follows:

1. VCCA - Power supply for side A
2. VCCB - Power supply for side B
3. GND - Ground
4. OE - Output enable
5. A1 - Channel A input/output 1
6. A2 - Channel A input/output 2
7. A3 - Channel A input/output 3
8. A4 - Channel A input/output 4
9. B1 - Channel B input/output 1
10. B2 - Channel B input/output 2
11. B3 - Channel B input/output 3
12. B4 - Channel B input/output 4
13. B5 - Channel B input/output 5
14. B6 - Channel B input/output 6
15. B7 - Channel B input/output 7
16. B8 - Channel B input/output 8
17. VREF - Reference voltage
18. AGND - Analog ground
19. AVCC - Analog power supply
20. VCC - Power supply for internal circuitry

Functional Features

• Bidirectional voltage level translation between two logic voltage domains
• Supports voltage translation from 1.65V to 5.5V
• High-speed operation with a maximum data rate of 100 Mbps
• Low-power consumption
• Output enable pin for easy control of the translation function

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - High-speed operation enables fast data transmission - Low-power consumption helps in energy-efficient designs - Bidirectional translation simplifies interfacing between different voltage domains

Disadvantages: - Limited number of channels (8) may not be sufficient for complex systems requiring more connections - Operating temperature range (-40°C to +85°C) may not be suitable for extreme environments

Working Principles

The MAX4821ETP+T is a voltage level translator that enables bidirectional communication between two logic voltage domains. It uses a combination of level shifters and voltage dividers to convert logic-level signals from one voltage domain to another.

When an input signal is applied to the A-side, the MAX4821ETP+T translates it to the corresponding voltage level on the B-side. Similarly, when an input signal is applied to the B-side, it is translated to the corresponding voltage level on the A-side.

The translation process is controlled by the OE (Output Enable) pin. When the OE pin is low, the translation is enabled, and when it is high, the translation is disabled.

Detailed Application Field Plans

The MAX4821ETP+T can be used in various applications where voltage level translation is required. Some potential application fields include:

1. Microcontroller Interfaces: The IC can be used to interface microcontrollers operating at different voltage levels, enabling seamless communication between them.
2. Sensor Networks: It can be employed in sensor networks where sensors with different voltage requirements need to communicate with a central processing unit.
3. Industrial Automation: The IC can facilitate communication between different modules and devices in industrial automation systems, ensuring compatibility between various voltage domains.
4. Consumer Electronics: It can be utilized in consumer electronic devices that require voltage level translation, such as smartphones, tablets, and gaming consoles.

Detailed and Complete Alternative Models

1. MAX3378EEUD+: 16-channel voltage level translator with a supply voltage range of 1.65V to 5.5V.
2. SN74LVC4245APWR: 8-bit dual-supply bus transceiver and voltage level translator with a supply voltage range of 1.65V to 5.5V.
3. PCA9306DCUR: Dual bidirectional I2C-bus and SMBus voltage level translator with a supply voltage range of 1.2V to 3.6V.

These alternative models offer similar functionality and can be considered as alternatives to the MAX4821ETP+T based on specific application