MAX328CWE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: The MAX328CWE+T is a precision, low-power, dual-slope analog-to-digital converter (ADC) designed for applications requiring high accuracy and low power consumption.
• Characteristics: This ADC offers 12-bit resolution with a maximum conversion rate of 100ksps. It operates from a single +2.7V to +5.25V supply voltage and consumes only 0.5mW of power during normal operation. The MAX328CWE+T is known for its excellent linearity, low noise, and high stability.
• Package: The MAX328CWE+T is available in a small 16-pin wide SOIC package, which makes it suitable for space-constrained applications.
• Essence: The essence of the MAX328CWE+T lies in its ability to accurately convert analog signals into digital data while consuming minimal power.
• Packaging/Quantity: The MAX328CWE+T is typically sold in reels of 2500 units.

Specifications

• Resolution: 12 bits
• Conversion Rate: Up to 100ksps
• Supply Voltage: +2.7V to +5.25V
• Power Consumption: 0.5mW (typical)
• Operating Temperature Range: -40°C to +85°C
• Input Voltage Range: 0V to VREF
• Reference Voltage Range: 1.25V to VDD
• Differential Nonlinearity (DNL): ±0.5 LSB (typical)
• Integral Nonlinearity (INL): ±1 LSB (typical)

Pin Configuration

The MAX328CWE+T features a 16-pin wide SOIC package with the following pin configuration:

```

---

| | | U1 | |___________|

Pin Configuration:

1. VDD
2. AGND
3. REFOUT
4. REF-
5. REF+
6. IN-
7. IN+
8. CS
9. CLK
10. DOUT
11. DGND
12. NC
13. NC
14. NC
15. NC
16. VSS ```

Functional Features

• Dual-Slope Integration: The MAX328CWE+T utilizes a dual-slope integration technique to achieve high accuracy and low noise performance.
• Low Power Consumption: With a power consumption of only 0.5mW, this ADC is ideal for battery-powered applications where power efficiency is crucial.
• Excellent Linearity: The MAX328CWE+T offers excellent linearity, ensuring accurate conversion of analog signals into digital data.
• High Stability: This ADC maintains high stability over a wide range of operating conditions, making it suitable for demanding applications.

Advantages and Disadvantages

Advantages: - High accuracy - Low power consumption - Small package size - Excellent linearity - High stability

Disadvantages: - Limited conversion rate compared to some other ADCs - Requires an external reference voltage

Working Principles

The MAX328CWE+T operates based on the principle of dual-slope integration. It integrates the input voltage during two different time periods, one with a known reference voltage and the other with the input voltage. By comparing the two integration times, the ADC determines the digital representation of the input voltage.

Detailed Application Field Plans

The MAX328CWE+T finds applications in various fields, including but not limited to: - Industrial automation - Medical equipment - Data acquisition systems - Instrumentation - Portable devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX328CWE+T include: - MAX1232CWE+T - LTC1867L - ADS7828E

These alternatives can be considered based on specific requirements and design constraints.

In conclusion, the MAX328CWE+T is a precision, low-power, dual-slope analog-to-digital converter with excellent accuracy, low power consumption, and high stability. It finds applications in diverse fields and is available in a small package size. While it has some limitations, it offers reliable performance for applications requiring high accuracy and low power consumption.