Overview
The MAX1491CAI is a low-power, single-chip analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component integrates a 3.5-digit or 4.5-digit ADC with liquid crystal display (LCD) drivers, making it a comprehensive solution for various measurement and display applications. The MAX1491CAI is designed to operate efficiently, providing high accuracy and reliability in a compact package.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 3.5 or 4.5 digits |
| Input Range | ±2V, ±10V, ±20V, ±100mV, ±1V, ±5V |
| Accuracy | ±1 count for 3.5 digits, ±2 counts for 4.5 digits |
| Power Consumption | Typically 1.5mA at 5V supply |
| Supply Voltage | 4.5V to 5.5V |
| Operating Temperature | -40°C to +85°C |
| Package Type | 44-pin PLCC or 44-pin TQFP |
Key Features
- Low power consumption, typically 1.5mA at 5V supply
- Integrated LCD drivers for direct display of measured values
- High accuracy with ±1 count for 3.5 digits and ±2 counts for 4.5 digits
- Multiple input ranges: ±2V, ±10V, ±20V, ±100mV, ±1V, ±5V
- Compact 44-pin PLCC or 44-pin TQFP package
Applications
The MAX1491CAI is suitable for a variety of applications, including:
- Digital multimeters and other measurement instruments
- Industrial control and automation systems
- Medical devices requiring precise measurement and display
- Aerospace and defense systems where low power and high accuracy are critical
Q & A
- What is the resolution of the MAX1491CAI ADC? The MAX1491CAI has a resolution of 3.5 or 4.5 digits.
- What are the input ranges supported by the MAX1491CAI? The MAX1491CAI supports input ranges of ±2V, ±10V, ±20V, ±100mV, ±1V, and ±5V.
- How much power does the MAX1491CAI typically consume? The MAX1491CAI typically consumes 1.5mA at a 5V supply.
- What is the operating temperature range of the MAX1491CAI? The operating temperature range is -40°C to +85°C.
- What types of packages are available for the MAX1491CAI? The MAX1491CAI is available in 44-pin PLCC or 44-pin TQFP packages.
- Does the MAX1491CAI have integrated LCD drivers? Yes, the MAX1491CAI has integrated LCD drivers for direct display of measured values.
- What is the accuracy of the MAX1491CAI? The accuracy is ±1 count for 3.5 digits and ±2 counts for 4.5 digits.
- Can the MAX1491CAI be used in medical devices? Yes, the MAX1491CAI is suitable for medical devices requiring precise measurement and display.
- Is the MAX1491CAI suitable for aerospace applications? Yes, the MAX1491CAI is suitable for aerospace and defense systems where low power and high accuracy are critical.
- Where can I find detailed specifications for the MAX1491CAI? Detailed specifications can be found in the datasheet available on the Analog Devices website or through distributors like Digi-Key and Mouser.
