# Keithley 2230G-30-1 Programmable Triple Channel DC Power Supply with GPIB Interface # Keithley 2230G-30-1 Programmable Triple Channel DC Power Supply with GPIB Interface ## Key Features At A Glance - Triple-output programmable DC supply: two 30V/1.5A channels plus one 6V/5A channel for powering mixed analog and digital circuits - Independent and isolated output channels — float any output up to 240V DC+peak AC relative to chassis or to any other output - 0.03% basic voltage setting and readback accuracy with 1 mV / 1 mA resolution for precise programming and measurement - Low-noise linear regulation with less than 3 mV peak-to-peak voltage ripple and noise on all channels - Remote sense terminals on each channel compensate for lead voltage drops to deliver programmed voltage accurately at the load - Two 30V channels combinable in series for up to 60V output or in parallel for up to 3A — display reads back combined values - USB (USBTMC) standard on all models; G versions add IEEE-488.2 GPIB for automated test integration with LabVIEW and IVI drivers - 30 setup memory locations, channel timer for unattended tests, and user-definable maximum voltage limits for DUT protection The Keithley 2230-30-1 is a triple-channel programmable DC power supply from the Series 2200 family, combining two 30V/1.5A channels (45W each) with a third 6V/5A channel (30W) in a single benchtop chassis. It is designed to cost-effectively characterize and test devices, circuit boards, modules, and products that require more than one power source — a single instrument replacing the bench space and budget of multiple stand-alone supplies. Per the datasheet, this supply is built for circuit design, electrical engineering student labs, materials research, and automated test applications. Its three channels are completely independent and isolated from one another, which means it can power two optically isolated or transformer-isolated circuits with different reference points from one chassis — eliminating the need for a second supply in isolated-circuit work. The timer function on each channel also supports unattended testing by automatically removing power after a programmed interval, protecting the device under test from over-stress. ValueTronics has been a trusted source for test and measurement equipment since 1992, with all inventory stored, inspected, and tested at our 20,000 square foot secure warehouse at 1675 Cambridge Drive, Elgin, Illinois. Rather than drop-shipping from third parties, every Keithley 2230-30-1 we list is verified by our in-house technicians before shipment, with condition documented and supported by our standard guarantee — giving engineers and procurement teams a verified, single-source path to a precision multi-channel supply. ## Brand Heritage Keithley Instruments was founded in 1946 in Cleveland, Ohio, and became part of Tektronix in 2010 following its acquisition by Danaher; both Keithley and Tektronix subsequently moved into the Fortive group when Danaher spun off its test and measurement businesses in 2016. The Keithley brand and product lines, including the Series 2200 multi-channel DC supplies, continue to be supported under the Tektronix corporate umbrella. ## Compare Other Models in This Series The Series 2200 multi-channel programmable DC supplies are offered in two output topologies and two interface configurations. All models share the same per-channel accuracy, resolution, ripple, regulation, and protection architecture — the differences across the family are channel count (dual versus triple output) and remote interface (USB only versus USB plus GPIB). The dual-channel models (2220-30-1 and 2220G-30-1) provide two 30V/1.5A channels with a 90W maximum output, while the triple-channel models (2230-30-1 and 2230G-30-1) add a third 6V/5A channel for digital logic and raise the maximum output to 120W. Within each output topology, the base part number includes USBTMC, and the G suffix adds IEEE-488.2 GPIB for legacy automated test systems. Each new model below is its own product page with condition-matched pricing and availability. Use the comparison table to confirm channel count, total output power, and interface match before selecting the right configuration for your bench or test system. The 2230-30-1 is the triple-output USB-only configuration: two 30V/1.5A channels plus the 6V/5A channel, with USBTMC for remote control. It is the natural choice when the bench needs both adjustable analog rails and a dedicated low-voltage high-current channel for digital logic, and where the test system or PC is configured around USB rather than legacy GPIB. The choice between dual-channel (2220 family) and triple-channel (2230 family) is driven by whether the DUT requires a dedicated 6V/5A digital rail in addition to the two 30V analog rails. The triple-channel models also raise total maximum output power from 90W to 120W per the datasheet's DC output ratings. The choice between base and G versions is driven entirely by the automated test interface. The base models (2220-30-1, 2230-30-1) provide USBTMC only; the G models (2220G-30-1, 2230G-30-1) add IEEE-488.2 GPIB alongside USB. For new test systems, USB is typically sufficient; for integration into existing GPIB-based racks, the G versions remove the need for a USB-to-GPIB adapter. Model Channels Max Output Voltage Max Output Current **2230G-30-1** 3 30 V 5 A 2220-30-1 2 30 V 1.5 A 2220G-30-1 2 30 V 1.5 A 2220J-30-1 2 30 V 1.5 A Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - CS-1655-15 Rear Panel Mating Connector for Models 2220 and 2230 Multi-Channel DC Power Supplies - Documentation and Driver CD ## Product Core & Specifications Specification 2230-30-1 / 2230J-30-1 / 2230G-30-1 / 2230GJ-30-1 (CH1) 2230-30-1 / 2230J-30-1 / 2230G-30-1 / 2230GJ-30-1 (CH2) 2230-30-1 / 2230J-30-1 / 2230G-30-1 / 2230GJ-30-1 (CH3) 2220-30-1 / 2220J-30-1 / 2220G-30-1 / 2220GJ-30-1 (CH1) 2220-30-1 / 2220J-30-1 / 2220G-30-1 / 2220GJ-30-1 (CH2) DC Output Rating Voltage 0 to 30 V 0 to 30 V 0 to 6 V 0 to 30 V 0 to 30 V Current 0 to 1.5 A 0 to 1.5 A 0 to 5 A 0 to 1.5 A 0 to 1.5 A Maximum Power 120 W 90 W Load Regulation Voltage < 0.01% + 3 mV < 0.01% + 3 mV < 0.01% + 3 mV < 0.01% + 3 mV < 0.01% + 3 mV Current < 0.01% + 3 mA < 0.01% + 3 mA < 0.01% + 3 mA < 0.01% + 3 mA < 0.01% + 3 mA Line Regulation Voltage < 0.01% + 3 mV < 0.01% + 3 mV < 0.01% + 3 mV < 0.01% + 3 mV < 0.01% + 3 mV Current < 0.1% + 3 mA < 0.1% + 3 mA < 0.1% + 3 mA < 0.1% + 3 mA < 0.1% + 3 mA Ripple and Noise Voltage (7MHz) < 1 mV rms, < 3 mV p-p < 1 mV rms, < 3 mV p-p < 1 mV rms, < 3 mV p-p < 1 mV rms, < 3 mV p-p < 1 mV rms, < 3 mV p-p Current (20MHz) < 5 mA rms < 5 mA rms < 6 mA rms < 5 mA rms < 5 mA rms Setting Resolution Voltage 1 mV 1 mV 1 mV 1 mV 1 mV Current 1 mA 1 mA 1 mA 1 mA 1 mA Setting Accuracy Voltage ± 0.03% + 10 mV ± 0.03% + 10 mV ± 0.03% + 10 mV ± 0.03% + 10 mV ± 0.03% + 10 mV Current ± 0.1% + 5 mA ± 0.1% + 5 mA ± 0.1% + 5 mA ± 0.1% + 5 mA ± 0.1% + 5 mA Meter Resolution Voltage 1 mV 1 mV 1 mV 1 mV 1 mV Current 1 mA 1 mA 1 mA 1 mA 1 mA Meter Accuracy Voltage ± 0.03% + 10 mV ± 0.03% + 10 mV ± 0.03% + 10 mV ± 0.03% + 10 mV ± 0.03% + 10 mV Current ± 0.1% + 5 mA ± 0.1% + 5 mA ± 0.1% + 5 mA ± 0.1% + 5 mA ± 0.1% + 5 mA General Isolation Voltage, Output to Chassis Any output can be floated up to 240V (DC + peak AC with AC limited to a maximum of 3Vpk-pk and a maximum frequency of 60Hz) relative to earth ground terminal. Isolation Voltage, Output to Output Any output can be floated up to 240V (DC + peak AC with AC limited to a maximum of 3Vpk-pk and a maximum frequency of 60Hz) relative to any other output terminal. Voltage Transient Response Settling Time, Load Change (typical) <150ms to within 75mV following a change from 0.1A to 1A. Voltage Transient Response Settling Time, Setting Change, Rising (typical) <150ms to within 75mV following a change from 1V to 11V into a 10Ω resistor (Ch. 1, 2); from 0.4V to 4V into a 4Ω resistor (ch. 3). Voltage Transient Response Settling Time, Setting Change, Falling (typical) <150ms to within 75mV following a change from 11V to 1V into a 10Ω resistor (Ch. 1, 2); from 0.4V to 4V into a 4Ω resistor (ch. 3). Display Vacuum fluorescent display. Memory 30 setup memories. Tracking Mode Maintains the ratio on the two 30V output channels that is present when the control is activated. Combination V1+V2 Series Mode Deliver up to 60 V when CH1 and CH2 are wired in series. Meter reads back combined voltage. Combination I1+I2 Parallel Mode Deliver up to 3 A when CH1 and CH2 are wired in parallel. Meter reads back combined current. Rear Panel Connections USB Device Port, Type B connector, USBTMC compatible. 2220G and 2230G versions include a GPIB interface, IEEE-488.2 compliant. Power Source AC Input Non-“J” versions: Switchable between 120VAC or 240VAC, nominal (different fuse required for each voltage). “J” Versions: 100VAC, nominal. Frequency 50/60Hz Power Consumption Triple Channel Versions: 450VA Dual Channel Versions: 350VA Physical Characteristics Height (boots and handle installed) 105.3 mm (4.15 in.) Width (boots and handle installed) 241.8 mm (9.52 in.) Depth (boots and handle installed) 384.0 mm (15.12 in.) Height (boots and handle removed) 90.7 mm (3.57 in.) Width (boots and handle removed) 217.2 mm (8.55 in.) **Important:** Output isolation is rated up to 240V (DC + peak AC, with AC limited to 3 Vpk-pk maximum at 60 Hz maximum) relative to earth ground, and the same limit applies between any two output terminals.Recommended pairing: combine the two 30V/1.5A channels in series for 60V output or in parallel for 3A output as described in the datasheet's Combination modes, using the rear-panel terminals for the desired configuration. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 2160.0 USD - **Vendor:** Keithley - **Type:** Dc Supply - **Tags:** DC Power Supply, Keithley, Manufacturers, Power Supplies & Loads, product_manual_group_1, Product_new ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 2160.00 USD | In stock | ## Images - 2230G-30-1 Keithley DC Power Supply --- > Source: [ValueTronics](https://valuetronics.com/products/2230g-30-1-keithley-dc-power-supply-new) > Updated: 2026-05-30