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Maxim Confidential 
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The MAX22000 is an industrial-grade configurable analog input/output device that can be configured on-the-fly in software as a voltage input or output, or current input or output. Additional inputs are available to measure other analog signals. The device offers an 18-bit DAC with fast settling time as well as a 24-bit delta-sigma ADC. The ADC and DAC can individually choose between an internal or an external reference. The MAX22000 supports the ADC with a low-noise programmable gain amplifier (PGA), with high-voltage and low-voltage input ranges to support RTD and thermocouple measurements. Additional auxiliary inputs are provided to measure cold junction temperatures on-board. The MAX22000 communicates through a high speed 20MHz SPI bus for all configuration and management information as well as for conversion results. An optional 8-bit CRC enhances the reliability of the SPI interface, protecting against all 8-bit bursts as well as all double-bit errors. The MAX22000 operates from 2.7V to 3.6V analog and digital supplies and up to ±24V high-voltage supplies. The device is available in a 64-pin LGA package and operates over the -40°C to +125°C industrial temperature range.
主要特征
- Accurate
- AOVM Mode:
- 0.02%FSR Accuracy, Room Temp
- 0.1%FSR Accuracy, ±50°C Temp Variation
- 5ppm/°C Internal Reference
- AOVM Mode:
- Flexible
- 6 Analog Inputs/1 Analog Output Using Software Configurable Voltage and Current
- Two Auxiliary ADC Inputs for Cold Junction Measurements
- RTD Input Mode in 2, 3, or 4-Wire Configurations
- Thermocouple Input Mode
- ±12.5V Input/Output Voltage Range
- ±25mA or ±2.5mA Output Current Range
- ±25V, ±2.5V, ±500mV, ±250mV, and ±125mV PGA Input Voltage Ranges
- +24V Field Supply for Current Loop
- Optional External Reference for ADC and/or DAC
- Six GPIOs
- 20MHz SPI Interface
- Robust
- ±36V Protection on All Analog I/O Ports
- Overcurrrent Protection
- Thermal Shutdown
- Undervoltage Interrupt on All High Voltage Supplies
- CRC Detection
- Open Detection on All Analog Inputs
- 2kV HBM Protection on All Pins
- -40°C to +125°C Operating Temperature Range
- Small 9mm x 9.5mm 64-Pin LGA Package
应用/用途
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Parametric specs for Analog I/O
| Analog Input/Output | Analog Input Analog Output |
| Interface Type | SPI |
| Output Resolution (bits) | 18 |
| Input Resolution (bits) | 24 |
| VOUT (V) (min) | -12.5 |
| VOUT (V) (max) | 12.5 |
| IOUT (mA) (min) | -25 |
| IOUT (mA) (max) | 25 |
| Oper. Temp. (°C) | -40 to +125 |
| Package/Pins | LGA HYBRID/64 |
| Budgetary Price (See Notes) | $25.30 @1k |
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技术文档
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描述
The MAX22000 evaluation kit (EV kit) provides the hardware and software necessary to evaluate the MAX22000 industrial configurable analog I/O, both natively, and in conjunction with the MAX14914A industrial digital I/O. The MAX22000 EV kit communicates with a graphical user interface (GUI) running on a PC through a USB port.
查看详情特征
- All Modes Accessible: Voltage Input, Voltage Output, Current Input, Current Output, and Temperature Measurement
- Accesses All Spare Inputs
- Includes MAX14914A Industrial Digital I/O
- Windows® 10, Windows 8.1, and Windows 7 Compatible Software
- Proven PCB Layout
- Fully Assembled and Tested
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参量
Parametric specs for Analog I/O
| Analog Input/Output | Analog Input Analog Output |
| Interface Type | SPI |
| Output Resolution (bits) | 18 |
| Input Resolution (bits) | 24 |
| VOUT (V) (min) | -12.5 |
| VOUT (V) (max) | 12.5 |
| IOUT (mA) (min) | -25 |
| IOUT (mA) (max) | 25 |
| Oper. Temp. (°C) | -40 to +125 |
| Package/Pins | LGA HYBRID/64 |
| Budgetary Price (See Notes) | $25.30 @1k |
主要特征
- Accurate
- AOVM Mode:
- 0.02%FSR Accuracy, Room Temp
- 0.1%FSR Accuracy, ±50°C Temp Variation
- 5ppm/°C Internal Reference
- AOVM Mode:
- Flexible
- 6 Analog Inputs/1 Analog Output Using Software Configurable Voltage and Current
- Two Auxiliary ADC Inputs for Cold Junction Measurements
- RTD Input Mode in 2, 3, or 4-Wire Configurations
- Thermocouple Input Mode
- ±12.5V Input/Output Voltage Range
- ±25mA or ±2.5mA Output Current Range
- ±25V, ±2.5V, ±500mV, ±250mV, and ±125mV PGA Input Voltage Ranges
- +24V Field Supply for Current Loop
- Optional External Reference for ADC and/or DAC
- Six GPIOs
- 20MHz SPI Interface
- Robust
- ±36V Protection on All Analog I/O Ports
- Overcurrrent Protection
- Thermal Shutdown
- Undervoltage Interrupt on All High Voltage Supplies
- CRC Detection
- Open Detection on All Analog Inputs
- 2kV HBM Protection on All Pins
- -40°C to +125°C Operating Temperature Range
- Small 9mm x 9.5mm 64-Pin LGA Package
应用/用途
- null
- null
- null
- null
描述
The MAX22000 is an industrial-grade configurable analog input/output device that can be configured on-the-fly in software as a voltage input or output, or current input or output. Additional inputs are available to measure other analog signals. The device offers an 18-bit DAC with fast settling time as well as a 24-bit delta-sigma ADC. The ADC and DAC can individually choose between an internal or an external reference. The MAX22000 supports the ADC with a low-noise programmable gain amplifier (PGA), with high-voltage and low-voltage input ranges to support RTD and thermocouple measurements. Additional auxiliary inputs are provided to measure cold junction temperatures on-board. The MAX22000 communicates through a high speed 20MHz SPI bus for all configuration and management information as well as for conversion results. An optional 8-bit CRC enhances the reliability of the SPI interface, protecting against all 8-bit bursts as well as all double-bit errors. The MAX22000 operates from 2.7V to 3.6V analog and digital supplies and up to ±24V high-voltage supplies. The device is available in a 64-pin LGA package and operates over the -40°C to +125°C industrial temperature range.
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