Overview
The MAX1403CAI+T is an 18-bit, low-power, multichannel, serial-output analog-to-digital converter (ADC) produced by Maxim Integrated, now a part of Analog Devices Inc. This device is designed for high-accuracy data acquisition and features a sigma-delta modulator with a digital decimation filter, achieving up to 16-bit accuracy. It operates from a supply voltage range of +2.7V to +3.6V and is available in a 28-pin SSOP package. The MAX1403CAI+T is ideal for applications requiring precise and efficient analog-to-digital conversion with multiple input channels and programmable gain and offset capabilities.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Maxim Integrated (Analog Devices Inc.) |
| Number of Bits | 18 |
| Sampling Rate (Per Second) | Up to 480 sps |
| Number of Inputs | 3 fully differential, 5 pseudo-differential |
| Input Type | Differential, Pseudo-Differential |
| Data Interface | SPI |
| Configuration | MUX-PGA-ADC |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | +2.7 V ~ +3.6 V |
| Package | 28-SSOP (0.209", 5.30mm Width) |
| Operating Temperature | 0°C ~ 70°C |
Key Features
- Matched 200µA current sources for sensor excitation
- User-selectable decimation factor for adjustable conversion resolution and output data rate
- Three fully differential input channels with programmable gain (+1V/V to +128V/V) and offset compensation
- Two additional fully differential system-calibration channels for gain and offset error correction
- SPI™/QSPI™-compatible 3-wire serial interface
- Automatic channel scanning and continuous data output mode
- Line rejection without the need for further postfiltering when used with specific master clock frequencies
- Lead-free and RoHS compliant
Applications
- Medical Instruments: For precise data acquisition in medical devices.
- Industrial Control Systems: Suitable for monitoring and controlling industrial processes.
- Portable Equipment: Ideal for battery-powered devices requiring low power consumption.
- Data-Acquisition Systems: For various data acquisition needs in different environments.
- Automatic Testing and Robotics: For automated testing and robotic systems requiring accurate analog-to-digital conversion.
Q & A
- What is the resolution of the MAX1403CAI+T ADC?
The MAX1403CAI+T is an 18-bit ADC, but it achieves true 16-bit performance at an output data rate of up to 480 sps.
- What is the supply voltage range for the MAX1403CAI+T?
The device operates from +2.7V to +3.6V.
- How many input channels does the MAX1403CAI+T have?
The MAX1403CAI+T has three fully differential input channels and can be configured to operate as five pseudo-differential input channels.
- What type of architecture does the MAX1403CAI+T use?
The MAX1403CAI+T uses a sigma-delta modulator with a digital decimation filter.
- What is the packaging of the MAX1403CAI+T?
The device is available in a 28-pin SSOP package.
- Is the MAX1403CAI+T lead-free and RoHS compliant?
- What is the operating temperature range of the MAX1403CAI+T?
The operating temperature range is from 0°C to 70°C.
- How does the MAX1403CAI+T handle line rejection?
The device can reject line frequency and associated harmonics without further postfiltering when used with specific master clock frequencies.
- What kind of serial interface does the MAX1403CAI+T use?
The MAX1403CAI+T uses an SPI™/QSPI™-compatible 3-wire serial interface.
- Can the MAX1403CAI+T perform automatic channel scanning?
