I was searching for an SMU (source measurement unit) like ADALM1k but find the new 2k. I was wondering if the SMU capabilities of the new 2k unit can match or exceed the 1k's.

Regards

I was searching for an SMU (source measurement unit) like ADALM1k but find the new 2k. I was wondering if the SMU capabilities of the new 2k unit can match or exceed the 1k's.

Regards

The ADALM2000 is not by strict definition a Source Measurement Unit (SMU) in that the source function (signal generator) and measure function (oscilloscope) are on different pins. One could, I suppose, connect all the separate pins together to make a sort of SMU But.... There are certain features of the M2000 hardware that make it much less like an SMU. First the source function has 50 ohm resistors in series with the output amplifiers unlike the M1000 which does not. The M2000 amplifiers can source/sink only 50 mA compared to the M1000 at 200 mA. Second the M2000 input structure is differential voltage (does not measure current directly) with + and - inputs. This can be used to measure current by using external shunt resistors. Where the M1000 has the current measurement function built in. With the M1000 there will be no burden voltage drop due to external shunt resistor. The M2000 has only two "measurement" channels (both voltage only) so to make an SMU you would use one for voltage and one for current thus you get just one SM Unit. The M1000 has 4 measurement channels, two current and two voltage, which give you two complete SM Units.

There are of course the bandwidth / sample rate difference that are obvious. And the dynamic range, 16 bits for M1000 vs 12 bits for M2000.

Unless you need the bandwidth I would not consider the M2000 for SMU applications.

Doug

The ADALM2000 is not by strict definition a Source Measurement Unit (SMU) in that the source function (signal generator) and measure function (oscilloscope) are on different pins. One could, I suppose, connect all the separate pins together to make a sort of SMU But.... There are certain features of the M2000 hardware that make it much less like an SMU. First the source function has 50 ohm resistors in series with the output amplifiers unlike the M1000 which does not. The M2000 amplifiers can source/sink only 50 mA compared to the M1000 at 200 mA. Second the M2000 input structure is differential voltage (does not measure current directly) with + and - inputs. This can be used to measure current by using external shunt resistors. Where the M1000 has the current measurement function built in. With the M1000 there will be no burden voltage drop due to external shunt resistor. The M2000 has only two "measurement" channels (both voltage only) so to make an SMU you would use one for voltage and one for current thus you get just one SM Unit. The M1000 has 4 measurement channels, two current and two voltage, which give you two complete SM Units.

There are of course the bandwidth / sample rate difference that are obvious. And the dynamic range, 16 bits for M1000 vs 12 bits for M2000.

Unless you need the bandwidth I would not consider the M2000 for SMU applications.

Doug