Product comparison table (Gen 2)

Note

Looking for a product comparison table for original boards? Check the Original board product comparison table.

	STEMlab 125-14 (original)	STEMlab 125-14 Gen 2	STEMlab 125-14 PRO Gen 2	STEMlab 125-14 PRO Z7020 Gen 2	STEMlab 125-14 TI	STEMlab 65-16 TI
Basic
Processor	Dual core ARM Cortex-A9	Dual core ARM Cortex-A9	Dual core ARM Cortex-A9	Dual core ARM Cortex-A9	Dual core ARM Cortex-A9	Dual core ARM Cortex-A9
FPGA	FPGA AMD (Xilinx) Zynq 7010 SoC	FPGA AMD (Xilinx) Zynq 7010 SoC	FPGA AMD (Xilinx) Zynq 7010 SoC	FPGA AMD (Xilinx) Zynq 7020 SoC	FPGA AMD (Xilinx) Zynq 7020 SoC	FPGA AMD (Xilinx) Zynq 7020 SoC
RAM	512 MB (4 Gb)	512 MB (4 Gb)	512 MB (4 Gb)	1 GB (8 Gb)	512 MB (4 Gb)	512 MB (4 Gb)
Core clock frequency	125 MHz	125 MHz	125 MHz	125 MHz	125 MHz	125 MHz
System memory	Micro SD up to 32 GB	Micro SD up to 32 GB	Micro SD up to 32 GB	Micro SD up to 32 GB	Micro SD up to 32 GB	Micro SD up to 32 GB
Serial console connector	Micro USB	USB-C	USB-C	USB-C	USB-C	USB-C
Power connector	Micro USB	USB-C	USB-C	USB-C	USB-C	USB-C
Power consumption	5 V, 2 A max	5 V, 3 A max	5 V, 3 A max	5 V, 3 A max	5 V, 3 A max	5 V, 3 A max
Connectivity
Ethernet	1 Gbit	1 Gbit	1 Gbit	1 Gbit	1 Gbit	1 Gbit
USB	USB-A 2.0	USB-C 2.0	USB-C 2.0	USB-C 2.0	USB-C 2.0	USB-C 2.0
Wi-Fi	Requires Wi-Fi dongle	Requires Wi-Fi dongle	Requires Wi-Fi dongle	Requires Wi-Fi dongle	Requires Wi-Fi dongle	Requires Wi-Fi dongle
RF inputs
RF input channels	2	2	2	2	2	2
Sampling rate	125 MS/s	125 MS/s	125 MS/s	125 MS/s	125 MS/s	62.5 MS/s
ADC resolution	14 bit	14 bit	14 bit	14 bit	14 bit	16 bit
Input impedance	1 MΩ / 10 pF	1 MΩ / 10 pF	1 MΩ / 10 pF	1 MΩ / 10 pF	1 MΩ / 10 pF	1 MΩ / 10 pF
Full scale voltage range	±1 V (LV) ±20 V (HV)	±1 V (LV) ±20 V (HV)	±1 V (LV) ±20 V (HV)	±1 V (LV) ±20 V (HV)	±1 V (LV) ±20 V (HV)	±1 V (LV) ±20 V (HV)
Input coupling	DC	DC	DC	DC	DC	DC
Absolute max. input voltage [1]	±6 V (LV) ±30 V (HV)	±6 V (LV) ±30 V (HV)	±6 V (LV) ±30 V (HV)	±6 V (LV) ±30 V (HV)	±6 V (LV) ±30 V (HV)	±6 V (LV) ±30 V (HV)
Input ESD protection	1500 VDC	1500 VDC	1500 VDC	1500 VDC	1500 VDC	1500 VDC
Overload protection	Protection diodes	Protection diodes	Protection diodes	Protection diodes	Protection diodes	Protection diodes
Bandwidth	DC - 60 MHz	DC - 60 MHz	DC - 60 MHz	DC - 60 MHz	DC - 60 MHz	DC - 30 MHz
Connector type	SMA	SMA	SMA	SMA	SMA	SMA
RF outputs
RF output channels	2	2	2	2	2	2
Sampling rate	125 MS/s	125 MS/s	125 MS/s	125 MS/s	125 MS/s	125 MS/s
DAC resolution	14 bit	14 bit	14 bit	14 bit	14 bit	14 bit
Load impedance	50 Ω	50 Ω / Hi-Z	50 Ω / Hi-Z	50 Ω / Hi-Z	50 Ω / Hi-Z	50 Ω / Hi-Z
Voltage range	±1 V	±1 V @ 50 Ω ±2 V @ Hi-Z	±1 V @ 50 Ω ±2 V @ Hi-Z	±1 V @ 50 Ω ±2 V @ Hi-Z	±1 V @ 50 Ω ±2 V @ Hi-Z	±1 V @ 50 Ω ±2 V @ Hi-Z
Output coupling	DC	DC	DC	DC	DC	DC
Short circuit protection	Yes	Yes	Yes	Yes	Yes	Yes
Output slew rate	2 V / 10 ns	2 V / 10 ns	2 V / 10 ns	2 V / 10 ns	2 V / 10 ns	2 V / 10 ns
RF output jitter @40 MHz	20 ps RMS	20 ps RMS	20 ps RMS	20 ps RMS	5 ps RMS	5 ps RMS
Bandwidth	DC - 60 MHz	DC - 60 MHz	DC - 60 MHz	DC - 60 MHz	DC - 60 MHz	DC - 60 MHz
Connector type	SMA	SMA	SMA	SMA	SMA	SMA
Extension connectors
Digital GPIOs	16	16	16	22	22	22
Digital voltage levels	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
High-speed diff. pairs (E3)	N/A	N/A	N/A	8	N/A	N/A
High-speed diff. pair voltage levels (E3)	N/A	N/A	N/A	2.5 V LVDS	N/A	N/A
Analog inputs	4	4	4	4	4	4
Analog input voltage range	0 - 7.0 V	0 - 7.0 V	0 - 7.0 V	0 - 7.0 V	0 - 7.0 V	0 - 7.0 V
Analog input resolution	12 bit	12 bit	12 bit	12 bit	12 bit	12 bit
Analog input sampling rate	100 kS/s	100 kS/s	100 kS/s	100 kS/s	100 kS/s	100 kS/s
Analog outputs	4	4	4	4	4	4
Analog output voltage range	0 - 1.8 V	0 - 1.8 V	0 - 1.8 V	0 - 1.8 V	0 - 1.8 V	0 - 1.8 V
Analog output resolution	8 bit	8 bit	8 bit	8 bit	8 bit	8 bit
Analog output sampling rate	≲ 3.2 MS/s	≲ 3.2 MS/s	≲ 3.2 MS/s	≲ 3.2 MS/s	≲ 3.2 MS/s	≲ 3.2 MS/s
Analog output bandwidth	≈ 160 kHz	≈ 120 kHz	≈ 120 kHz	≈ 120 kHz	≈ 120 kHz	≈ 120 kHz
Communication interfaces	I2C, SPI, UART, CAN	I2C, SPI, UART, CAN	I2C, SPI, UART, CAN	I2C, SPI, UART, CAN	I2C, SPI, UART, CAN	I2C, SPI, UART, CAN
Available voltages	+5 V, +3V3, -3V4	±5 V, +3.3 V	±5 V, +3.3 V	±5 V, +3.3 V	±5 V, +3.3 V	±5 V, +3.3 V
External ADC clock	Ext. clock models only [2]	N/A	Yes	Yes	Yes	Yes
E3 connector	N/A	N/A	Yes	Yes	N/A	N/A
Synchronisation
External trigger input	DIO0_P (E1)	DIO0_P (E1)	DIO0_P (E1)	DIO0_P (E1)	DIO0_P (E1)	DIO0_P (E1)
External trigger input impedance	Hi-Z (Digital input)	Hi-Z (Digital input)	Hi-Z (Digital input)	Hi-Z (Digital input)	Hi-Z (Digital input)	Hi-Z (Digital input)
Trigger output [3]	DIO0_N (E1)	DIO0_N (E1)	DIO0_N (E1)	DIO0_N (E1)	DIO0_N (E1)	DIO0_N (E1)
Daisy chain connectors (S1 & S2)	Yes	N/A	Yes	Yes	Yes	Yes
Daisy chain connectors speed	Up to 500 Mb/s	N/A	Up to 500 Mb/s	Up to 500 Mb/s	Up to 500 Mb/s	Up to 500 Mb/s
Daisy chain connectors type	SATA	N/A	USB-C	USB-C	USB-C	USB-C
Ref. clock input	N/A	N/A	N/A	N/A	Via Ext. ADC Clk±	Via Ext. ADC Clk±
Ref. clock frequency	N/A	N/A	N/A	N/A	1 - 300 MHz	1 - 300 MHz
Ref. clock connector type	N/A	N/A	N/A	N/A	Ext. ADC Clk± (E2 pins 23/24)	Ext. ADC Clk± (E2 pins 23/24)
Boot options
SD card	Yes	Yes	Yes	Yes	Yes	Yes
QSPI	Not populated	N/A	E3 add-on module	E3 add-on module	Not populated	Not populated
eMMC	N/A	N/A	E3 add-on module	E3 add-on module	N/A	N/A
Environmental Specifications
Operating Temperature Range [4]	0 to 55℃	0 to 55℃	0 to 55℃	0 to 55℃	0 to 55℃	0 to 55℃
Operating Humidity Range	< 90%	< 90%	< 90%	< 90%	< 90%	< 90%
Automatic Shutdown Temperature	85℃	85℃	85℃	85℃	85℃	85℃

Warning

Maximum Input Voltage

• LV mode: ±6 V absolute maximum

• HV mode: ±30 V absolute maximum

Exceeding these values may damage the board permanently.

Footnotes

[1]

The absolute maximum input voltage values are for frequencies below 1 kHz. For higher frequencies, please use the input voltage range specifications as Absolute maximum.

[2]

See the External Clock board models for more information.

[3]

See the X-channel 2.0 (Click Shield) synchronisation and X-channel 2.0 (Click Shield) synchronisation examples for trigger output configuration.

[4]

With default heatsinks. Higher temperatures may be possible with custom cooling solutions, but the board will automatically shut down at 85℃ to prevent damage.