Overview
The MAX1400EAI+ is an 18-bit, low-power, multichannel, serial-output analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device utilizes a sigma-delta modulator with a digital decimation filter to achieve high accuracy and flexibility. It operates from a +5V analog supply and can be powered by either a +3V or +5V digital supply. The MAX1400EAI+ is designed for applications requiring high precision and low power consumption, making it suitable for a variety of industrial and medical devices.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 18 bits | |
| Output Data Rate | Up to 480 sps | |
| Integral Nonlinearity (INL) | ± 0.0015 % FSR | |
| Operating Supply Voltage (Analog) | +5V | |
| Operating Supply Voltage (Digital) | 2.7V to 5.25V | |
| Operating Temperature Range | -40°C to +85°C | |
| Input Channels | 3 fully differential or 5 pseudo-differential | |
| Programmable Gain | +1V/V to +128V/V | |
| Package Type | 28-Pin SSOP |
Key Features
- Three fully differential or five pseudo-differential input channels with programmable gain between +1V/V and +128V/V.
- Two additional fully differential calibration channels/auxiliary input channels.
- Access to the multiplexer output/ADC input.
- Programmable gain and offset compensation.
- Fully differential reference inputs.
- Continuous or on-command conversion modes.
- Automatic channel scanning and continuous data output mode.
- SPI/QSPI-compatible 3-wire serial interface.
Applications
The MAX1400EAI+ is suitable for various applications requiring high precision and low power consumption, such as industrial process control, medical devices, and data acquisition systems. Its ability to handle multiple input channels and programmable gain makes it versatile for different measurement scenarios.
Q & A
- What is the resolution of the MAX1400EAI+ ADC?
The MAX1400EAI+ has an 18-bit resolution. - What is the maximum output data rate of the MAX1400EAI+?
The maximum output data rate is up to 480 samples per second (sps). - What is the operating supply voltage range for the digital supply of the MAX1400EAI+?
The digital supply voltage range is 2.7V to 5.25V. - How many input channels does the MAX1400EAI+ have?
The device has three fully differential or five pseudo-differential input channels. - What is the operating temperature range of the MAX1400EAI+?
The operating temperature range is -40°C to +85°C. - Does the MAX1400EAI+ support SPI or QSPI interfaces?
Yes, it supports both SPI and QSPI-compatible 3-wire serial interfaces. - Can the gain of the input channels be programmed?
Yes, the gain can be programmed between +1V/V and +128V/V. - What type of package does the MAX1400EAI+ come in?
The MAX1400EAI+ comes in a 28-Pin SSOP package. - Does the MAX1400EAI+ support automatic channel scanning?
Yes, it supports automatic channel scanning and continuous data output mode. - What is the integral nonlinearity (INL) of the MAX1400EAI+?
The INL is ±0.0015 % FSR.
