The Model 6482 Dual-Channel Picoammeter/Voltage Source provides two independent picoammeter/ voltage source channels for a wide range of low-level measurement applications that require dual-channel measurements. Building off of the proven measurement capabilities of Keithley's Model 6485 51/2-digit Picoammeter, the Model 6482 adds higher measurement resolution, a second measurement channel, and dual, independent 30V voltage bias sources. With its dual channel measurement capabilities, the Model 6482 is a great measurement tool for analyzing multi-channel devices, monitoring currents in multiple locations on materials, and recording data from multiple sensors at once. The dual channels facilitate easier control and data aggregation. The greater channel density increases the number of instruments (and channels) that can fit in confined spaces. * Dual-channel, 61/2-digit measurement capability * Dual 30V bias sources * Measure currents up to 20mA * Measure currents with 1fA resolution * 0-10V analog output for high resolution measurement feedback * Supports assembly process, final testing, parts binning, and specification * 3000-point buffer memory on each channel allows data transfer after test completion * Trigger Link for binning and sweep test operations Programmable Limits and Filters As with most Keithley instruments, the Model 6482's current and voltage limits can be programmed to ensure device protection during critical points, such as start of test. These instruments also provide average and median filters, which can be applied to the data stored in the buffer memory. Ratio and Delta Measurements The Model 6482 can provide ratio or delta measurements between the two completely isolated channels. These functions can be accessed via either the front panel or the GPIB interface. For test setups with multiple detectors, this capability enables targeted control capabilities. Features that Expand Test and Measurement Flexibility * Scaled voltage analog output. The Model 6482 can transmit measurement results to devices such as DMMs, data acquisition boards, oscilloscopes, or strip chart recorders. * 220V overload protection. With this high overload protection and a robust design, the Model 6482 can withstand abusive overflows. * One-touch front panel design. Functions can be configured easily with the push of a button without complicated function menus. * Built-in Trigger Link interface. The Trigger Link interface simplifies synchronizing the Model 6482 with other instruments and voltage sources and combines six independent selectable trigger lines on a single connector for simple, direct control over all instruments in a system. * IEEE-488 and RS-232 interfaces * RS-232 and IEEE-488 interfaces. These interfaces make it easy to integrate the Model 6482 into automated test and measurement systems. APPLICATIONS * Display on/off switch. For research on light-sensitive components, such as measuring the dark currents of photodiodes, the front panel display can be switched off to avoid introducing light that could significantly reduce the accuracy of the results. * Manufacturing component test * Dual diode testing * Semiconductor component testing * Multi-pin component testing Dual-channel picoammeter/voltage source Dual-Channel Picoammeter/ Voltage Source * REL and LOG functions. The Model 6482 can make relative readings with respect to a baseline value or display the logarithm of the absolute value of the measured current. * Rear panel triax inputs. Triax inputs ensure premium noise protection. Triax-to-BNC adapters, which are included, allow inexpensive, easy-to-use BNC cables to be employed in situations where noise is less of a concern. * Ion beam monitoring * Electron microscopy 1.888.KEITHLEY (U.S. only) www.keithley.com A Greater Measure of Confidence LOW LEVEL MEASURE & SOURCE Dual-channel picoammeter/voltage source 6482 Ordering Information LOW LEVEL MEASURE & SOURCE Dual-channel picoammeter/voltage source 6482 6482/E 6482/J Dual Channel Picoammeter/Voltage Source (120V line power voltage) Dual Channel Picoammeter/Voltage Source (220-240V line power voltage) Dual Channel Picoammeter/Voltage Source (100V line power voltage) Accessories Supplied 7078-TRX-BNC Triax-to-BNC Connector (2x) Dual-Channel Picoammeter/ Voltage Source Accessories Available CABLES 237-ALG-* 4802-10 4803 7007-1 7007-2 7007-4 7078-TRX-* 7009-5 7754-3 8607 8501-1 8501-2 8503 ADAPTERS 237-TRX-BAR 7078-TRX-BNC CS-565 Services Available 6482-3Y-EW Low Noise Triax Cable with Alligator Clips Low Noise BNC Input Cable, 3m (10 ft) Low Noise Cable Kit Shielded IEEE-488 Cable, 1m (3.3 ft) Shielded IEEE-488 Cable, 2m (6.6 ft) Shielded IEEE-488 Cable, 4m (13.1 ft) 3-Slot Triax Cable RS-232 Cable BNC to Alligator Cable, 0.9m (3 ft) Banana Cable set for Analog Output Trigger Link Cable with Male Micro-DIN Connectors at each End, 1m (3.3 ft) Trigger Link Cable with Male Micro-DIN Connectors at each End, 2m (6.6 ft) DIN-to-BNC Trigger Cable 1 Year Factory Warranty extended to 3 years from date of shipment 1 Year Factory Warranty extended to 3 years 6482-5Y-EW from date of shipment C/6482-3Y-DATA 3 (Z-540-1 compliant) calibrations within 3 years of purchase for Model 6482 C/6482-5Y-DATA 5 (Z-540-1 compliant) calibrations within 5 years of purchase for Model 6482 C/6482-3Y-ISO 3 (ISO-17025 accredited) calibrations within 3 years of purchase for Model 6482 C/6482-5Y-ISO 5 (ISO-17025 accredited) calibrations within 5 years of purchase for Model 6482 3-lug Triax Barrel Female BNC to 3-Slot Male Triax for connecting BNC cable into triax fixture BNC Barrel RACK MOUNT KITS 4288-1 Single Fixed Rack Mounting Kit 4288-2 Dual Fixed Rack Mounting Kit GPIB INTERFACES KPCI-488LPA IEEE-488 Interface/Controller for the PCI Bus KUSB-488B IEEE-488 USB-to-GPIB Interface Adapter 1.888.KEITHLEY (U.S. only) www.keithley.com A Greater Measure of Confidence Dual-channel picoammeter/voltage source 6482 6482 Dual-Channel Picoammeter/ Voltage Source Typical Speed and Noise Rejection Digits 41/2 51/2 61/2 Range 2.000000 nA 20.00000 nA 200.0000 nA 2.000000 A 20.00000 A 200.0000 A 2.000000 mA 20.00000 mA Accuracy 1, 2 23 5C (% rdg + offset) 1.00% + 2 pA 0.40% + 2 pA 0.30% + 200 pA 0.20% + 200 pA 0.10% + 20 nA 0.10% + 20 nA 0.10% + 2 A 0.10% + 2 A Temperature Coefficient 0-18C & 28-50C (%rdg + offset)/C 0.01 + 200 fA 0.01 + 200 fA 0.02 + 20 pA 0.02 + 20 pA 0.01 + 2 nA 0.01 + 2 nA 0.02 + 200 nA 0.02 + 200 nA Resolution <400 V <4 mV Accuracy 23C 5C (0.15% of setting + 5 mV) (0.3% of setting + 50 mV) Maximum Current 20 mA 20 mA Load Regulation 4 < 0.30%, 0 to 20 mA < 0.30%, 0 to 20 mA DC Input Impedance3 (maximum) 20 kW 20 kW 200 W 200 W 2.0 W 2.0 W 0.2 W 0.2 W Temperature Coefficient 150 ppm/C 300 ppm/C Analog Output Specifications Output voltage range (output is inverting) 2: -10V out for positive full scale input, +10V out for negative full scale input. Output impedance: 1kW typical. Accuracy 23C 5C Range (% rdg. + offset) 2.000000 nA 6.0% + 90 mV 20.00000 nA 3.0% + 9 mV 200.0000 nA 6.0% + 90 mV 2.000000 A 3.0% + 9 mV 20.00000 A 6.0% + 90 mV 200.0000 A 2.5% + 9 mV 2.000000 mA 6.0% + 90 mV 20.00000 mA 2.5% + 9 mV Temperature Coefficient 0-18C & 28-50C (%rdg. + offset)/C 0.30% + 7 mV 0.11% + 700 V 0.30% + 4 mV 0.11% + 400 V 0.30% + 4 mV 0.11% + 400 V 0.30% + 4 mV 0.11% + 400 V Typical Rise Time (10% to 90%) 6.1 ms 6.1 ms 395 s 395 s 135 s 135 s 21 s 21 s Typical Noise Floor Measurement Specifications Range 2.000000 nA 20.00000 nA 200.0000 nA 2.000000 A 20.00000 A 200.0000 A 2.000000 mA 20.00000 mA 0.01 NPLC 2.5 pA 2.5 pA 200 pA 200 pA 20 nA 20 nA 2 A 2 A Typical Noise Floor RMS (1 STDEV), 100 Samples 0.1 NPLC 1.0 NPLC 1.5 pA 45 fA 1.5 pA 45 fA 120 pA 2 pA 120 pA 2 pA 12 nA 200 pA 12 nA 200 pA 1.5 A 25 nA 1.5 A 25 nA 10 NPLC 15 fA 15 fA 500 fA 500 fA 50 pA 50 pA 5 nA 5 nA NMRR -- -- 60 dB GENERAL Voltage Bias Specifications Range 10 V 30 V NPLC 0.01 0.1 1 Source capacitance: Stable to 10.0nF (typical). Input bias current 5: 50fA max. @ 23C. Input voltage burden 6: 4.0mV maximum. Voltage source slew rate: 3.0ms/V (typical). Common mode voltage: 200VDC. Common mode isolation: Typically 109W in parallel with 150nF. Overrange: 105% of measurement range. Memory buffer: 6000 readings (two 3000 point buffers). Includes selected measured value(s) and time stamp. Programmability: IEEE-488.2, RS-232, five user-definable power-up states plus factory default and *RST. Output enable connector: Output Enable: Active low input. Input line: SOT (start of test) trigger input. Power supply: 100V, 120V, 220V, 240V (10%), 50Hz or 60Hz, 50VA maximum. Warranty: 1 year. EMC: Conforms to European Union EMC Directive. Vibration: MIL-T-28800F random class 3. Safety: Conforms to European Union Low Voltage Directive. Warm-up: 1 hour to rated accuracy. Dimensions: Rack Mount: 89mm high x 213mm wide x 370mm deep (3.5 in. x 8.4 in. x 14.6 in.). Bench Configuration (with handle and feet): 104mm high x 238mm wide x 370mm deep (4.1 in. x 9.4 in. x 14.6 in.). Weight: 23.1kg (10.5 lb.). Environment: For indoor use only. Altitude: Maximum 2000m (6562 ft.) above sea level. Operating: 0 to 50C, 70 % relative humidity up to 35C. Derate 3% relative humidity/C, 35 to 50C. Storage: -25 to 65C. Measurement SPECIFICATIONS1 Maximum Resolution 1 fA 10 fA 100 fA 1 pA 10 pA 100 pA 1 nA 10 nA Readings per Second GPIB GPIB (488.1) (SCPI) 700 900 60 475 58 58 notes 1. 2. 3. 4. 5. 6. Speed = Normal (1.0 NPLC), filter on. One year. Measured as DVin/Iin at full scale (and zero) input currents. Measured as DVin/Iin at full scale (20mA) and zero load currents. Specification by design. Measured (at input triaxial connector) as DVin at full scale (20mA) versus zero input currents. 1.888.KEITHLEY (U.S. only) www.keithley.com A Greater Measure of Confidence Model 6482 specifications This document contains specifications and supplemental information for the Model 6482 Dual-Channel Picoammeter/Voltage Source instrument. Specifications are the standards against which the Model 6482 is tested. Upon leaving the factory, the Model 6482 meets these specifications. Supplemental and typical values are nonwarranted, apply at 23C, and are provided solely as useful information. The Model 6482 provides two independent picoammeter/voltage source channels for a wide range of measurement applications. The Model 6482 includes an analog output jack on the rear panel for each channel. Source and measurement accuracies are specified at the Model 6482 terminals under these c onditions: 1. 23 5C, <70 percent relative humidity. 2. After a one-hour warm-up period. 3. Speed normal (1 NPLC). 4. A/D autozero enabled. 5. Properly zeroed operation. 6. Calibration period: One year. LOW LEVEL MEASURE & SOURCE Dual-channel picoammeter/voltage source Specification Conditions