Overview
The MAX11142ATI+ is a high-performance, low-power analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX11135–MAX11143 series, which offers 12-, 10-, and 8-bit resolution options. The MAX11142ATI+ specifically features an 8-bit resolution with 4 or 8 analog input channels. It is designed for high-speed, successive-approximation register (SAR) conversions with both internal and external clock modes.
The device is notable for its low power consumption, operating from a 2.35V to 3.6V supply and consuming only 4.2mW at 500ksps. It also includes advanced features such as internal averaging, a user-programmable analog input channel sequencer, and a high-speed 3-wire serial interface compatible with SPI and QSPI protocols.
Key Specifications
| Specification | Value | Notes |
|---|---|---|
| Resolution | 8-bit | |
| Number of Channels | 4 or 8 | |
| Sampling Rate | 500ksps | |
| Supply Voltage | 2.35V to 3.6V | |
| Power Consumption | 4.2mW at 500ksps | |
| Clock Modes | Internal and External | |
| Serial Interface | 3-wire, SPI and QSPI compatible | |
| Aperture Delay | 8 ns | |
| Aperture Jitter RMS | 30 ps | |
| Input Voltage Range | 0 to VREF+ (unipolar), -VREF+/2 to +VREF+/2 (bipolar) | |
| Input Capacitance | 15 pF (RANGE bit = 0), 7.5 pF (RANGE bit = 1) | During acquisition time |
Key Features
- High-Speed Conversions: Supports sampling rates up to 500ksps.
- Low Power Consumption: Operates at 4.2mW at 500ksps.
- Internal and External Clock Modes: Includes internal averaging in internal clock mode and SampleSet technology for flexible channel sequencing in external clock mode.
- Flexible Input Configurations: Analog input channels can be configured as single-ended, fully differential, or pseudo-differential inputs.
- Integrated FIFO: Allows data to be sampled at high speeds and held for readout at any time or at a lower clock rate.
- High-Speed Serial Interface: 3-wire interface compatible with SPI and QSPI protocols.
- Power Management: Features AutoShutdown, fast wake-up, and full power-down mode for optimal power management.
Applications
- Industrial Automation: Suitable for high-speed data acquisition in industrial control systems.
- Medical Devices: Used in medical equipment requiring low power and high accuracy.
- Aerospace and Defense: Ideal for applications requiring robust and reliable ADCs.
- Automotive Systems: Applicable in automotive sensors and control systems.
- Consumer Electronics: Can be used in various consumer electronic devices requiring high-speed ADCs.
Q & A
- What is the maximum sampling rate of the MAX11142ATI+?
The maximum sampling rate is 500ksps.
- How many analog input channels does the MAX11142ATI+ have?
The device has 4 or 8 analog input channels.
- What is the supply voltage range for the MAX11142ATI+?
The supply voltage range is from 2.35V to 3.6V.
- What is the power consumption of the MAX11142ATI+ at 500ksps?
The power consumption is 4.2mW at 500ksps.
- Does the MAX11142ATI+ support both internal and external clock modes?
Yes, it supports both internal and external clock modes.
- What type of serial interface does the MAX11142ATI+ use?
The device uses a 3-wire serial interface compatible with SPI and QSPI protocols.
- What is the aperture delay of the MAX11142ATI+?
The aperture delay is 8 ns.
- Can the analog input channels be configured in different modes?
Yes, the channels can be configured as single-ended, fully differential, or pseudo-differential inputs.
- Does the MAX11142ATI+ have an integrated FIFO?
Yes, it features an integrated FIFO for high-speed data sampling and readout.
- What power management features does the MAX11142ATI+ include?
The device includes AutoShutdown, fast wake-up, and full power-down mode for optimal power management.
