MIO168 + AFE3

The MIO168 is a versatile module that offers multi-channel generation and measurement of digital and analog signals. In the basic version it offers 8 digital 2-level inputs and 8 low-side high current switches. It additionally offers two bipolar voltage or current analog sources and two unipolar voltage sources and two square wave generators. In combination with AFE3 it can be used for isolated simultaneous measurement of the power of two circuits as well as the efficiency as a ratio of two powers.

MIO168 module without AFE (Analog Front End) specification

• On-board STM32F446ZCT6 high-performance foundation line MCU, ARM Cortex-M4 with DSP and FPU, 256 KiB Flash, LQFP-144 package
• 1 x 8-pin single row 3.81 mm connector (digital inputs)
• 1 x 16-pin dual row 3.81 mm I/O connector (digital and analog outputs)
• 2 x 10-pin ADIB 2.0 mm connectors
• 8 x protected digital inputs (3.3/5/24 V), 2 x fast/slow, 6 x slow
• 8 x digital outputs (low-side) with multiple protections and FAULT detection, 550 mA per channel (current limit 1 A)
• 2 x PWM outputs (protected) or sensor bias power (+/-15 V, max. 10 mA)
• 2 x analog bipolar outputs (+/-5 V, +/-10 V, 0-5 V, 0-10 V). Voltage or current output with protection. 12-bit DAC, replaceable with pin compatible 14- or 16-bit version
• 2 x analog bipolar outputs +/-10 V. 12-bit DAC, replaceable with pin compatible 14- or 16-bit version
• On-board isolated power supply with +/-5.3 V outputs (with 4x multipliers), +/-15 V and +3.3 V LDO
• Firmware download via SPI
• Optional SWD for debugging
• I2C EEPROM for storing board specific parameters
• Dimensions: 146 x 95 mm

AFE3 analog front end expansion board specification

• 24-bit 4-channel simultaneous sampling ADC with SPI
• AIN#1: Hi-voltage isolated (floated) input, 2 measurement ranges (±50 V, ±480 V)
• AIN#2: Hi-current isolated (floated) input, 2 measurement ranges (±1 A, ±10 A)
• AIN#3: Hi-voltage input, 3 measurement ranges (±2.4 V, ±12 V, ±240 V)
• AIN#4: Hi-current input, 3 measurement ranges (±24 mA, ±1 A, ±10 A) share common GND with AIN#3
• Latching relays for lower continuous power consumption
• On-board ±2.5 V low noise LDOs
• Optional external voltage reference
• Dimensions: 132 x 68.5 mm

Included into package:

• MIO168 module
• AFE3 expansion board (pre-installed)
• Extra fuse set (SKU: 00046)