3.1.1.11. Product comparison table

Basic

STEMlab 125-10
(discontinued)

STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk

STEMlab 125-14-Z7020-LN

STEMlab 125-14 4-Input

SDRlab 122-16
SDRlab 122-16 ext. clk

SIGNALlab 250-12

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 Xilinx Zynq 7010 SOC

FPGA Xilinx Zynq 7010 SOC

FPGA Xilinx Zynq 7020 SOC

FPGA Xilinx Zynq 7020 SOC

FPGA Xilinx Zynq 7020 SOC

FPGA Xilinx Zynq 7020 SOC

RAM

256 MB (2 Gb)

512 MB (4 Gb)

512 MB (4 Gb)

512 MB (4 Gb)

512 MB (4 Gb)

1 GB (8 Gb)

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

Console connection

USB to serial converter required

Micro USB

Micro USB

Micro USB

Micro USB

USB-C

Power connector

Micro USB

Micro USB

Micro USB

Micro USB

Micro USB

Power Jack,
RJ45 (PoE version only)

Power consumption

5 V, 1.5 A max

5 V, 2 A max

5 V, 2 A max

5 V, 2 A max

5 V, 2 A max

24 V, 0.5 A max


Connectivity

STEMlab 125-10
(discontinued)

STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk

STEMlab 125-14-Z7020-LN

STEMlab 125-14 4-Input

SDRlab 122-16
SDRlab 122-16 ext. clk

SIGNALlab 250-12

Ethernet

1 Gbit

1 Gbit

1 Gbit

1 Gbit

1 Gbit

1 Gbit

USB

USB 2.0

USB 2.0

USB 2.0

USB 2.0

USB 2.0

2 x USB 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

STEMlab 125-10
(discontinued)

STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk

STEMlab 125-14-Z7020-LN

STEMlab 125-14 4-Input

SDRlab 122-16
SDRlab 122-16 ext. clk

SIGNALlab 250-12

RF input channels

2

2

2

4

2

2

Sample rate

125 MS/s

125 MS/s

125 MS/s

125 MS/s

122.88 MS/s

250 MS/s

ADC resolution

10 bit

14 bit

14 bit

14 bit

16 bit

12 bit

Input impedance

1 MΩ / 10 pF

1 MΩ / 10 pF

1 MΩ / 10 pF

1 MΩ / 10 pF

50 Ω

1 MΩ

Full scale voltage range

±1 V (LV) and ±20 V (HV)

±1 V (LV) and ±20 V (HV)

±1 V (LV) and ±20 V (HV)

±1 V (LV) and ±20 V (HV)

0.5 Vpp/-2 dBm

+-1 V/+-20 V (software selectable)

Input coupling

DC

DC

DC

DC

AC

AC / DC (software selectable)

Absolute max. Input voltage range

30 V

30 V

30 V

30 V

DC max 50 V (AC-coupled),
1 Vpp for RF

30 V

Input ESD protection

Yes

Yes

Yes

Yes

Yes

Yes

Overload protection

Protection diodes

Protection diodes

Protection diodes

Protection diodes

DC voltage protection

Protection diodes

Bandwidth

DC - 50 MHz

DC - 60 MHz

DC - 60 MHz

DC - 60 MHz

300 kHz - 550 MHz

DC - 60 MHz


RF outputs

STEMlab 125-10
(discontinued)

STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk

STEMlab 125-14-Z7020-LN

STEMlab 125-14 4-Input

SDRlab 122-16
SDRlab 122-16 ext. clk

SIGNALlab 250-12

RF output channels

2

2

2

N/A

2

2

Sample rate

125 MS/s

125 MS/s

125 MS/s

N/A

122.88 MS/s

250 MS/s

DAC resolution

10 bit

14 bit

14 bit

N/A

14 bit

14 bit

Load impedance

50 Ω

50 Ω

50 Ω

N/A

50 Ω

50 Ω

Voltage range

±1 V

±1 V

±1 V

N/A

0.5 Vpp/ -2 dBm (50 Ω load)

+-2 V / +-10 V (Hi-Z load) (software selectable)

Short circuit protection

Yes

Yes

Yes

N/A

N/A, RF transformer & AC-coupled

Yes

Connector type

SMA

SMA

SMA

N/A

SMA

BNC

Output slew rate

2 V / 10 ns

2 V / 10 ns

2 V / 10 ns

N/A

N/A

10 V / 17 ns

Bandwidth

DC - 50 MHz

DC - 50 MHz

DC - 50 MHz

N/A

300 kHz - 60 MHz

DC - 60 MHz


Extension connector

STEMlab 125-10

STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk

STEMlab 125-14-Z7020-LN

STEMlab 125-14 4-Input

SDRlab 122-16
SDRlab 122-16 ext. clk

SIGNALlab 250-12

Digital IOs

16

16

22

22

22

19

Analog inputs

4

4

4

4

4

4

Analog inputs voltage range

0-3.5 V

0-3.5 V

0-3.5 V

0-3.5 V

0-3.5 V

0-3.5 V

Sample rate

100 kS/s

100 kS/s

100 kS/s

100 kS/s

100 kS/s

100 kS/s

Resolution

12 bit

12 bit

12 bit

12 bit

12 bit

12 bit

Analog outputs

4

4

4

4

4

4

Analog outputs 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

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, USB

Available voltages

+5 V, +3.3 V, -4 V

+5 V, +3.3 V, -4 V

+5 V, +3.3 V, -4 V

+5 V, +3.3 V, -4 V

+5 V, +3.3 V, -4 V

+5 V, +3.3 V, -4 V

External ADC clock

N/A

Yes

Yes

Yes

Yes

Yes


Synchronisation

STEMlab 125-10
(discontinued)

STEMlab 125-14
STEMlab 125-14 LN
STEMlab 125-14 ext. clk

STEMlab 125-14-Z7020-LN

STEMlab 125-14 4-Input

SDRlab 122-16
SDRlab 122-16 ext. clk

SIGNALlab 250-12

Trigger input

Through extension connector

Through extension connector

Through extension connector

Through extension connector

Through extension connector

Through BNC connector

Daisy chain connection

N/A

Over SATA connection
(up to 500 Mbps)

Over SATA connection
(up to 500 Mbps)

Over SATA connection
(up to 500 Mbps)

Over SATA connection
(up to 500 Mbps)

Over SATA connection
(up to 500 Mbps)

Ref. clock input

N/A

N/A

N/A

N/A

N/A

Through SMA connector

Note

Red Pitaya devices:

  • should be operated at normal conditions with ambient temperatures not exceeding 30°C (86°F) and should not be covered.

  • are intended for indoor use at a maximum altitude of 2000 m, pollution degree 2, and relative humidity less than 90%.

  • intended for use with low-voltage energy sources and signals; it should not be used in any direct connection with voltages above 30 volts.

Warning

All inputs and outputs available through SMA and BNC connectors share a common ground connected to the power supply ground.

Warning

Power supply precautions:

  • STEMlab 125-14, STEMlab 125-14-Z7020, STEMlab 125-14 4-Input, STEMlab 125-10, SDRlab 122-16 shall only be powered by an isolated external power supply providing 5 volts direct current, and a maximum current of 2 Amperes. The KA23-0502000DES model is recommended. Any other external power supply used with Red Pitaya must comply with relevant regulations and standards applicable in the country of use.

  • SIGNALlab 250-12 shall only be powered by an original KA2401A 24 V/1 A isolated power supply or through RJ45 ethernet connector (PoE version only).