The Keithley 2601B is a high-performance, single-channel System SourceMeter Source Measure Unit (SMU) designed to tightly integrate precision power sourcing and highly accurate measurement capabilities. Belonging to Keithley's industry-standard Series 2600B family, it features a dual-line vacuum fluorescent display, a fast sweep rate up to 20,000 readings per second, and embedded Test Script Processor (TSP) technology to automate complex test sequences directly on the instrument.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB, LAN (LXI Class C), USB 2.0 (Type B), RS-232, TSP-Link, Digital I/O (25-pin) |
| Display | Dual-line Vacuum Fluorescent Display (VFD) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 V to 240 V AC, 50 Hz to 60 Hz, 240 VA maximum |
| Operating Temperature | 0 °C to 50 °C |
| Dimensions (W×H×D) | 213 mm × 89 mm × 460 mm |
| Weight | 4.75 |
Source Specifications
| Parameter | Value |
|---|---|
| Number of SMU Channels | 1 |
| Maximum Output Power | 40 W (DC), 200 W (Pulse) |
| Maximum DC Voltage | 40 V |
| Maximum DC Current | 3 A @ 6 V, 1 A @ 40 V |
| Maximum Pulse Current | 10 A @ 20 V |
| Voltage Source Ranges | 100 mV, 1 V, 6 V, 40 V |
| Current Source Ranges | 100 nA, 1 µA, 10 µA, 100 µA, 1 mA, 10 mA, 100 mA, 1 A, 3 A, 10 A (Pulse only) |
| Voltage Source Programming Resolution | 5 µV (100 mV range), 50 µV (1 V range), 500 µV (6 V range), 2 mV (40 V range) |
| Voltage Programming Accuracy | ±(0.02% + 12 mV) on 40 V range |
| Current Programming Accuracy | ±(0.05% + 1.8 mA) on 1 A range |
| Voltage Compliance Range | 101 mV to 40.4 V |
| Current Compliance Range | 101 nA to 3.03 A |
| Voltage Source Load Regulation | 0.01% of range + 1 mV (0% to 100% load change) |
| Voltage Source Line Regulation | 0.01% of range (10% line change) |
| Current Source Load Regulation | 0.01% of range + 100 pA (100 nA to 1 A ranges, 0% to 100% load change) |
| Current Source Line Regulation | 0.01% of range (10% line change) |
| Transient Response Time | < 110 µs (to recover to within 0.1% of limit for a 10% to 90% load change) |
| Voltage Source Settling Time | < 50 µs typical (to within 0.1% of final value, 6 V range, 100 mA load) |
| Current Source Settling Time | < 80 µs typical (to within 0.1% of final value, 1 mA range, 10 V compliance) |
| Voltage Source Overshoot | < 0.1% typical (full scale step, resistive load) |
| Current Source Overshoot | < 0.1% typical (full scale step, resistive load, 10 µA to 3 A ranges) |
Measurement Specifications
| Parameter | Value |
|---|---|
| Voltage Measurement Ranges | 100 mV, 1 V, 6 V, 40 V |
| Current Measurement Ranges | 100 nA, 1 µA, 10 µA, 100 µA, 1 mA, 10 mA, 100 mA, 1 A, 3 A, 10 A (Pulse only) |
| Voltage Measurement Accuracy | ±(0.015% + 8 mV) on 40 V range |
| Current Measurement Accuracy | ±(0.03% + 1.5 mA) on 1 A range |
| Maximum Voltage Measurement Resolution | 100 nV |
| Maximum Current Measurement Resolution | 100 fA |
| Input Impedance | >10 GΩ (on <6 V ranges) |
| Sensing Method | 2-wire, 4-wire (Remote Sense) |
Pulse Characteristics
| Parameter | Value |
|---|---|
| Minimum Pulse Width | 100 µs |
| Maximum Pulse Duty Cycle | 10% (at 10 A range) |
Dynamic and Sweep Performance
| Parameter | Value |
|---|---|
| Maximum Sweep Rate | 20,000 readings per second (to memory) |
| Reading Buffer Capacity | >140,000 readings |
Connectivity and Interfaces
| Parameter | Value |
|---|---|
| LXI Compliance | LXI Core 2011 |
| Digital I/O Port Configuration | 25-pin D-sub, 14 configurable digital I/O lines |
| TSP-Link | Yes, for multi-channel expansion |
Software and Programming
| Parameter | Value |
|---|---|
| Command Set Support | TSP (Test Script Processor), SCPI (2400 emulation) |
| Programming Language | Lua (embedded in TSP) |
Power and Environmental
| Parameter | Value |
|---|---|
| Operating Humidity Range | 0 °C to 35 °C, 70% R.H.; 35 °C to 50 °C, derate 3% R.H./°C |
| Storage Temperature Range | -25 °C to 65 °C |
| Warm-Up Time | 2 hours |
Physical and Safety
| Parameter | Value |
|---|---|
| Form Factor | 2U half-rack |
| Calibration Interval | 1 year |
Electrical Specifications
| Parameter | Value |
|---|---|
| Maximum Common Mode Voltage | 250 V DC (LO to chassis) |
| Maximum Sense Lead Impedance | 3 V max voltage drop per lead to maintain accuracy |
| Sense Input Impedance | > 10 GΩ |
| Guard Offset Voltage | < 300 µV |
| Source Over-range Capability | 101% of source range |
| Measure Over-range Capability | 102% of measurement range |
A/D Converter
| Parameter | Value |
|---|---|
| ADC Integration Time Range | 0.001 PLC to 10 PLC |
Power Requirements
| Parameter | Value |
|---|---|
| Maximum Power Consumption | 240 VA |
| Line Frequency Range | 50 Hz / 60 Hz (auto-sensing) |
| Line Voltage Range | 100 V to 240 V AC (±10% auto-sensing) |
General & Mechanical
| Parameter | Value |
|---|---|
| Cooling Method | Forced air, variable speed |
Compliance & Safety
| Parameter | Value |
|---|---|
| Product Safety Standards | UL 61010-1:2004, CAN/CSA C22.2 No. 61010-1-04, EN 61010-1:2001 |
| EMC Compliance | Conforms to European Union Directive 2004/108/EEC, EN 61326-1 |
System Performance
| Parameter | Value |
|---|---|
| Maximum Single Reading Rate | 20,000 readings/s (to internal memory, 0.001 PLC) |
| Trigger Latency | < 4 µs |
| Trigger Jitter | < 0.5 µs |
| Common Mode Isolation Impedance | > 1 GΩ, < 450 pF typical |
Interfaces & Connectivity
| Parameter | Value |
|---|---|
| USB Interface Type | USB 2.0 High Speed (Type-B port for device control, Type-A port for USB flash drives) |
| Ethernet Port Details | RJ-45 connector, 10Base-T/100Base-TX |
| TSP-Link Interface Details | Dual RJ-45 connectors for multi-chassis system expansion (up to 32 nodes) |
| Internal 5V Power Supply Limit | 500 mA maximum cumulative limit |
Technology
Source Measure Unit (SMU)
Applications
Precision DC/Pulse I-V characterization, semiconductor test, component testing, and production automation