Overview
The MAX1401CAI+, produced by Analog Devices Inc./Maxim Integrated, is an 18-bit, low-power, multichannel, serial-output analog-to-digital converter (ADC). This device utilizes a sigma-delta modulator combined with a digital decimation filter to achieve true 16-bit accuracy. It is designed for applications requiring high precision and low power consumption, making it suitable for various industrial and medical devices.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18-bit |
| Accuracy | True 16-bit |
| Input Channels | Three fully differential, configurable to five pseudo-differential |
| Gain Range | +1V/V to +128V/V |
| Current Sources | Matched 200µA for sensor excitation |
| Output Data Rate | Up to 480sps |
| Power Supply | +3V to +5V |
| Package | 28-pin SSOP |
| Operating Temperature | -40°C to +85°C |
Key Features
- Low power consumption with flexible power management options.
- Three fully differential input channels with gain programmability between +1V/V and +128V/V.
- Configurable to operate as five pseudo-differential input channels.
- Two additional fully differential system-calibration channels for gain and offset error correction.
- User-selectable decimation factor allowing trade-off between conversion resolution and output data rate.
- Excellent line rejection without postfiltering when used with specific master clock frequencies.
Applications
The MAX1401CAI+ is suitable for a variety of applications, including:
- Industrial automation and control systems.
- Medical devices requiring high precision and low power consumption.
- Environmental monitoring and data acquisition systems.
- Aerospace and defense systems where reliability and accuracy are critical.
Q & A
- What is the resolution of the MAX1401CAI+ ADC?
The MAX1401CAI+ has an 18-bit resolution but achieves true 16-bit accuracy. - How many input channels does the MAX1401CAI+ have?
The device has three fully differential input channels that can be configured to operate as five pseudo-differential channels. - What is the gain range of the input channels?
The gain range is programmable between +1V/V and +128V/V. - What are the current sources used for in the MAX1401CAI+?
The device features matched 200µA current sources for sensor excitation. - What is the maximum output data rate of the MAX1401CAI+?
The maximum output data rate is up to 480sps. - What package type is the MAX1401CAI+ available in?
The device is available in a 28-pin SSOP package. - How does the MAX1401CAI+ handle line rejection?
The device can be configured to reject line frequency and associated harmonics without the need for further postfiltering when used with specific master clock frequencies. - What are the operating temperature ranges for the MAX1401CAI+?
The operating temperature range is -40°C to +85°C. - Can the MAX1401CAI+ be used in medical devices?
Yes, it is suitable for medical devices due to its high precision and low power consumption. - Is there an evaluation kit available for the MAX1401CAI+?
Yes, an evaluation system (EV system) is available for comprehensive evaluation of the MAX1401CAI+.
