DAQ Instrument

Key Features

USB controlled
x16 Analog in, ±10V range
x2 Analog out, ±10V range
x8 Digital I/O, configurable logic levels
Frequency counter, 1 Hz - 50MHz
High-Z variant available
Internal reference clock
+5V/±15V/I2C/SPI expansion
Powered by +24V/+5V
Separate Power enable and reset

Description

The DAQ Instrument provides high-precision data acquisition and converts real-world signals to the digital domain for display, storage, and analysis. It has an onboard high-performance MCU with an Arm® Cortex®-M7 core running a RTOS (Real-Time Operating System), which also provides a USB FS/HS channel to an external host.

High-Z variant available bla bla

The instrument offers external connection to 16 single-ended analog input channels (AI) with a successive approximation ADC, two analog output channels (AO), 8 digital Push-Pull I/O channels (DIO). Each group of analog input channels AI0-7 and AO8-15 provides simultaneous sampling. All digital channels can be used as a counter. High-Z variant available where the signals AI0-15, AO0-1, DIO0-7 can be optically isolated.

Different types of external expansion such as number of analog and digital channels are possible by utilizing the built-in expansion interface.

DAQ Instrument Block Diagram

DAQ Instrument Layout

Pinout

Pin	Name	Description	Pin	Name	Description
A1	+24V_IN	+24V Input Power Supply	B1	USB_N	USB D- signal
A2	+24V_IN	+24V Input Power Supply	B2	USB_P	USB D+ signal
A3	+24V_IN	+24V Input Power Supply	B3	GND	Ground
A4	+24V_IN	+24V Input Power Supply	B4	GND	Ground
A5	+5V_IN	+5V Input Power Supply	B5	GND	Ground
A6	+5V_IN	+5V Input Power Supply	B6	GND	Ground
A7	+5V_IN	+5V Input Power Supply	B7	GND	Ground
A8	+5V_IN	+5V Input Power Supply	B8	GND	Ground
A9	RST_N	Reset signal	B9	RSV	Reserved
A10	PWR_EN	Power enable of the instrument	B10	RSV	Reserved
A11	RSV	Reserved	B11	RSV	Reserved
A12	EXP_I2C_SCL/EXP_SPI_CS1	Expansion Interface I2C SCL or SPI CS1	B12	EXP_SPI_SCLK	Expansion Interface SPI Clock-signal
A13	EXP_I2C_SDA/EXP_SPI_CS2	Expansion Interface I2C SDA or SPI CS2	B13	EXP_SPI_MOSI	Expansion Interface SPI MOSI
A14	EXP_SPI_CS3	Expansion Interface UART TX or SPI CS3	B14	EXP_SPI_MISO	Expansion Interface SPI MISO
A15	EXP_SPI_CS4	Expansion Interface UART RX or SPI CS4	B15	EXP_SPI_CS0	Expansion Interface SPI CS0
A16	EXP_RST_N	Expansion Interface Reset output active low	B16	GND	Ground
A17	DIO0	Digital In/Out 0	B17	DIO1	Digital In/Out 1
A18	DIO2	Digital In/Out 2	B18	DIO3	Digital In/Out 3
A19	DIO4	Digital In/Out 4	B19	DIO5	Digital In/Out 5
A20	DIO6	Digital In/Out 6	B20	DIO7	Digital In/Out 7
A21	+5V_EXP	+5VDC Power Supply for Expansion	B21	GND	Ground
A22	+15V_EXP	+15VDC Power Supply for Expansion	B22	-15V_EXP	-15VDC Power Supply for Expansion
A23	GND	Ground	B23	GND	Ground
A24	AO0	Analog Output 0	B24	AO1	Analog Output 1
A25	AI0	Analog Input 0	B25	AI1	Analog Input 1
A26	AI2	Analog Input 2	B26	AI3	Analog Input 3
A27	AI4	Analog Input 4	B27	AI5	Analog Input 5
A28	AI6	Analog Input 6	B28	AI7	Analog Input 7
A29	AI8	Analog Input 8	B29	AI9	Analog Input 9
A30	AI10	Analog Input 10	B30	AI11	Analog Input 11
A21	AI12	Analog Input 12	B31	AI13	Analog Input 13
A32	AI14	Analog Input 14	B32	AI15	Analog Input 15

Absolute Maximum Ratings

Exceeding ABSOLUTE MAXIMUM RATINGS can cause permanent damage to the device.

	Min	Max
USB_P, USB_N	-0.5 V	+5.5 V
+24V Input Power Supply	-0.3 V	+25.5 V
+5V Input Power Supply	-0.3 V	+5.2 V
Expansion +5V Output Power Supply Current		+200 mA
Expansion +15V Output Power Supply Current		+75 mA
Expansion -15V Output Power Supply Current	-75 mA
Voltage on any Expansion Digital Pin	-0.3 V	+3.6 V
Voltage on any Digital I/O Pin	-0.3 V	+5.5 V
Voltage on any Analog Input Pins	-10.5 V	+10.5 V

Recommended Operating Conditions

Specifications are valid at 25°C unless otherwise noted and with a warm-up time of >10min.

	Conditions	Min	Typ	Max
+24V Input Power Supply		+23.0 V	+24.0 V	+25.0 V
+5V Input Power Supply		+4.8 V	+5.0 V	+5.2 V
+24V Input Power Supply Quiescent Current	Enabled Disabled		+62 mA +6 uA
+5V Input Power Supply Quiescent Current	Enabled Disabled		+123 mA +36 uA
Expansion +5V Output Power Supply	Load = +140 mA	+4.8 V	+5.0 V	+5.2 V
Expansion +5V Output Power Supply Current				+140 mA
Expansion +15V Output Power Supply	Load = +50 mA	+14.8 V	+15.0 V	+15.2 V
Expansion +15V Output Power Supply Current				+50 mA
Expansion -15V Output Power Supply	Load = -50 mA	-15.2 V	-15.0 V	-14.8 V
Expansion -15V Output Power Supply Current		-50 mA
Expansion Digital Input High Voltage		+2.4 V
Expansion Digital Input Low Voltage				+0.8 V
Expansion Digital Output High Voltage	Load = +2 mA	+2.6 V
Expansion Digital Output Low Voltage	Load = -2 mA			+0.7 V
Expansion I2C bit rate	Fast-mode			400 kbit/s
Expansion SPI Clock frequency				13.5 MHz
Analog Input Range	Range ±10 V	-10.0 V		+10.0 V
Analog Input Current (see figure)	High-Z variant	-10 μA -1 nA		+7 μA +1 nA
Analog Input Impedance	Range ±10 VDC		1 MΩ
Analog Input Resolution			16 bits
Analog Input Absolute Accuracy	Range ±10 V	-5.0 mV		+5.0 mV
Analog Input Sampling Rate	System dependent		60 S/s
Analog Output Range		-10.0 V		+10.0 V
Analog Output Current Drive		-5 mA		+5 mA
Analog Output Slew Rate			1.1 V/µs
Analog Output Short-circuit current	Range ±10 V	-40 mA		+40 mA
Analog Output Power-on State			0 V
Analog Output Resolution			12 bits
Analog Output Absolute Accuracy	Full range ±10 V	-20.0 mV		+20.0 mV
Analog Output Update Rate	System dependent			60 Hz
Digital I/O Compatibility		+1.8 V		+5.0 V
Digital I/O Internal Pull-Up Resistor			100 kΩ
Digital I/O Internal Pull-Down Resistor			100 kΩ
Digital I/O Power-On State	No pull-Up/Pull-Down		Input
Digital I/O Input High Voltage		+1.07 V		+5.50 V
Digital I/O Input Low Voltage		0.00 V		+1.65 V
Digital I/O Input Leakage Current	High-Z variant	-1 nA		+20 μA +1 nA
Digital I/O Output High Voltage	Load = +5 mA	+1.20 V		+5.5V
Digital I/O Output Low Voltage	Load = -5 mA	+0.45 V		+0.5 V
Digital I/O Frequency Measurement Range	SQW +2.5V to +5.0V SQW +1.8V	1 Hz 1 Hz		50 MHz 30 MHz
Digital I/O Frequency Measurement Accuaracy	Time Base Accuracy + System error	-4.4 ppm		+4.4 ppm
Digital I/O Frequency Measurement Resolution			18 bits
Digital I/O Frequency Measurement High Pulse Width		10 nS
Digital I/O Frequency Measurement Low Pulse Width		10 nS
Internal Time Base Frequency	TCXO		25.0 MHz
Internal Time Base Accuracy	Stability temp -40 ~ +85°C Aging per year @ +25°C	-2.9 ppm -1.0 ppm		+2.9 ppm +1.0 ppm

Typical Performance Characteristics

DAQ Analog Input Current vs. Input Voltage (High-Z disabled)

Environmental

The DAQ Instrument is designed for following environmental conditions and for indoor use only.

	Min	Max
Operating Temperature	0°C	+55°C
Operating Humidity`	10% RH	90% RH
Storage Temperature	0 °C	+70 °C
Storage humidity	5% RH	95% RH
Pollution Degree		2

Safety and Compliance

Safety

Update This Product is designed to meet the requirements of Electrical Safety Partial Testing according to EN 61010-1:2010 + A1:2019 + AC: 2019 and EN 61010-2-030:2021 + A11:2021.

Electromagnetic Compatibility

This product is designed to meet the requirements of EMC Testing according to EN 61326-1:2021 and CE standards of EMC for electrical equipment for measurement, control, and laboratory use.

CE Compliance

This product meets the essential requirements of applicable European Directives, as follows:

2014/35/EU; Low-Voltage Directive (safety)
2014/30/EU; Electromagnetic Compatibility Directive (EMC)

RoHS

Waste Electrical and Electronic Equipment (WEEE)

For EU Customers: at the end of the product life cycle, all Mikrodust products must be disposed of according to local laws and regulations.

Ordering information

Item	Part Number
AtoMik® Data Acquisition (DAQ) Instrument	IAD-1000-D1
AtoMik® Data Acquisition (DAQ) Instrument (High-Z)	IAD-1001-D1