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Red Pitaya STEMlab board

Overview

STEMLab 125-14 (originally Red Pitaya v1.1) vs. STEMLab 125-10

STEMLab is available in two versions which both offer the same functions and features, the difference is in the technical specification of high-frequency inputs and outputs, RAM capacity and some other differences (find more info in the comparison table below). They are addressed to target different groups and / or needs. Where STEMLab 125-14 has 14bit input / output channels for highly accurate measurement results in professional environments, STEMLab 125-10 has 10bit input / output channels and is perfect for universities, students and makers.

Basic
  STEMLAB 125-10 STEMLAB 125-14
Processor Processor DUAL CORE ARM CORTEX A9 DUAL CORE ARM CORTEX A9 Processor DUAL CORE ARM CORTEX A9 DUAL CORE ARM CORTEX A9
FPGA FPGA Xilinx Zynq 7010 SOC Xilinx Zynq 7010 SOC FPGA Xilinx Zynq 7010 SOC Xilinx Zynq 7010 SOC
RAM 256MB (2Gb) 512MB (4Gb)
System memory Micro SD up to 32GB Micro SD up to 32GB
Console connection USB to serial converter required micro USB
Power connector Micro USB Micro USB
Power consumption 1,5A 1,5A
Connectivity
  STEMLAB 125-10 STEMLAB 125-14
Ethernet 1Gbit 1Gbit
USB USB 2.0 USB 2.0
WIFI requires WIFI dongle requires WIFI dongle
Synchronisation - Daisy chain connector (up to 500 Mbps)
RF inputs
  STEMLAB 125-10 STEMLAB 125-14
RF input channels 2 2
Sample rate 125 MS/s 125 MS/s
ADC resolution 10 bit 14 bit
Input impedance 1MOhm/10pF 1MOhm/10pF
Full scale voltage range +-20 V +-20 V
Absolute max. Input voltage range 30V 30V
Input ESD protection Yes Yes
Overload protection Protection diodes Protection diodes
RF outputs
  STEMLAB 125-10 STEMLAB 125-14
RF output channels 2 2
Sample rate 125 MS/s 125 MS/s
DAC resolution 10 bit 14 bit
Load impedance 50 Ohm 50 Ohm
Voltage range +-1V +-1V
Ouput slew rate 200V/us 200V/us
Short circut protection Yes Yes
Connector type SMA SMA
Extension connector
  STEMLAB 125-10 STEMLAB 125-14
Digital IOs 16 16
Analog inputs 4 4
Analog inputs voltage range 3,5V 3,5V
Sample rate 100kS/s 100kS/s
Resolution 12bit 12bit
Analog outputs 4 4
Analog outputs voltage range 0-1,8V-0-1.8V 0-1,8V-0-1.8V
Communication interfaces I2C, SPI, UART I2C, SPI, UART
Available voltages +5V,+3,3V,-4V +5V,+3.3V,-4V