
S2026H
Dual-Channel Precision Source Meter
The Semight Instruments S2026H is a compact, cost-effective dual channel desktop power supply/measurement unit (SMU) with a wide range of voltage source (± 200V) and current source (± 1A DC and ± 3A pulse) functions, excellent accuracy, 6-and-a-half bit display (minimum 10fA/100nV display resolution), and excellent color LCD graphical user interface (GUI).
- High range -Range: ± 200 V, ± 1 A (DC), ± 3A (pulse)
- High resolution – The minimum measurement resolution can reach 10 fA/100 nV
- High sampling rate – Supports up to 1M ADC sampling rate
- Threshold trigger – Hardware high-speed IO, capable of threshold triggering, enabling efficient interaction between output measurement values and user systems
Features and Benefits
DC I-V output capability


Pulse I-V output capability
Voltage source/ measurement specifications
Voltage programming accuracy | Range | Measurement resolution | Accuracy (1 Year)
± (% reading+ offset) |
Typical Noise (RMS)
0.1 Hz-10 Hz |
±200 V | 100 μV | 0.03%+10 mV | 0.4 mV | |
±20 V | 10 μV | 0.03%+1 mV | 50 μV | |
±6 V | 1 μV | 0.03%+0.4 mV | 9 μV | |
±0.6V | 100 nV | 0.03%+100 μV | 2 μV | |
Temperature coefficient | ±(0.15 × accuracy)/℃ (0℃-18℃,28℃-50℃) | |||
Maximum output power | 20W: ±20V@1A, ±200V@100mA; 20W: ±0.6 V@1A | |||
Settling time | <50 μs (typical) | |||
Overshoot | <±0.1% (Typical. Norma mode. Step is 10 % to 90 % range, full range, resistive load) | |||
Noise 10Hz-20MHz | 20V voltage source, 1A resistive load, <5 mVrms |
Current source/ measurement specifications
Current programming accuracy
|
Range | Measurement resolution | Accuracy (1 Year)
± (% reading+ offset) |
Typical Noise (RMS)
0.1 Hz-10 Hz |
±3 A1 | 1 μA | 0.03% + 2 mA | 20 μA | |
±1 A | 100 nA | 0.03%+90 μA | 4 μA | |
±100 mA | 10 nA | 0.03%+9 μA | 600 nA | |
±10 mA | 1 nA | 0.03%+900 nA | 60 nA | |
±1 mA | 100 pA | 0.03%+90 nA | 6 nA | |
±100 μA | 10 pA | 0.03%+9 nA | 700 pA | |
±10 μA | 1 pA | 0.03%+1 nA | 80 pA | |
±1 μA | 100 fA | 0.03%+200 pA | 20 pA | |
±100 nA2 | 100 fA | 0.06%+30 pA | 3 pA | |
±10 nA2 | 10 fA | 0.06%+9 pA | 600 fA | |
Temperature coefficient | ±(0.15 × accuracy)/℃ (0℃-18℃,28℃-50℃) | |||
Maximum output power | 20W: ±20V@1A, ±200V@100mA;18W: ±0.6 V@1A | |||
Settling time | <100μs (typical) | |||
Overshoot | <±0.1% (Typical. Normal mode. Step is 10 % to 90 % range, full range, resistive load) |
- 3A range is available only for pulse mode, accuracy specifications for 3A range are typical.
- Additional specification conditions: 10 PLC setting
Pulse source specifications (4W)
Minimum programmable pulse width | 100 μs |
Pulse width programming resolution | 1 μs |
Pulse width programming accuracy | ±10 μs |
Pulse width jitter | 2 μs |
Pulse width definition | The time from 10 % leading to 90 % trailing edge as follows |
Item | Maximums | Maximum pulse width | Maximum duty cycle |
1 | 0.1 A/200 V | DC, no limit | 100% |
2 | 1 A/20 V | DC, no limit | 100% |
3 | 3 A/6 6.6V | 1 ms | 5% |
4 | 3 A/160 V | 400 μs | 2% |
Typical Pulse Performance(4W)
Source | Maximum output | Typical rise time 1 | Typical Settling Time2 | Test load |
Voltage | 160 V | 800 μs | 1.2 ms | NO load |
5 V | 40 μs | 100 μs | NO load | |
Current | 3 A~100 μA | 90 μs | 250 μs | Full load3 |
10 μA | 120 μs | 400 μs | Full load3 | |
1 μA | 800 μs | 1.2 ms | Full load3 | |
100 nA | 2 ms | 5 ms | Full load3 | |
10 nA | 5 ms | 20 ms | Full load3 |
- Leading edge, the time from 10 % leading to 90 % leading
- The time required from Pulse out 0 to reach within 1 % of final value
- Test condition: Normal, resistive load 6V maximum output
Typical output settling time
Source | Range | Output settling time1 | Condition | ||
Fast2 | Normal | Slow | |||
Voltage | 200 V | <500 μs | <1 ms | <2 ms | Time required to reach within 0.1 % of final value at open load condition. Step is 10 % to 90 % range |
20 V | <60 μs | <100 μs | <600 μS | ||
6 V | <60 μs | <100 μs | <300 μs | ||
0.6 V | <50 μs | <50 μs | <50 μs | ||
Current | 3 A~1 mA | <50 μs | <100 μs | <0.8 ms | Time required to reach within 0.1 % (0.3 % for 3 A range) of final value at short condition. Step is 10 % to 90 % range |
100 μA~10 μA | <100 μs | <150 μs | <0.8 ms | ||
1 μA | <1 ms | <1 ms | <1 ms | ||
100 nA | <3 ms | <3 ms | <3 ms | ||
10 nA | <10 ms | <10 ms | <10 ms |
- Output transition speed:Fast, Normal, Slow. Users can adjust the APFC parameters based on the load characteristics to obtain precision, and fast output characteristics
- Slow mode is recommended for overshoot sensitive equipment, Fast mode may have overshoot on output in some condition