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SRS CS580 Voltage Controlled Current Source, ±50 V, 100fA to 100mA

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Availability: In stock

Product Code:

51649

Manufacturer: Stanford Research Systems

Special Price £4,666.67 £5,600.00 Regular Price £4,811.00 £5,773.20

The SRS CS580’s low cost ultra-low noise design makes this a low cost alternative to more expensive competitor models on the market.

With up to ±50 V compliance voltage, the CS580 can source and sink precision AC and DC currents from 100 fA to 100 mA. Current is both sourced and sinked with adjustable compliance voltage up to ±50 V, giving full “four-quadrant” performance. The CS580 is a welcome addition to any research lab studying semiconductors and transport phenomena, Superconductivity, and nanotechnology, to name just a few.

Sources/sinks current from 100 fA to 100 mA
±50 V compliance voltage
1 nA/V to 50 mA/V gain
5 W max power
RS-232 and optical fiber interfaces
Low thermal drift
Up to 150 kHz bandwidth
Supplied with 6ft triax-to-alligator cable

Description

Lambda Exclusive Promotion:
Additional 12 months warranty for free (2 years total) via our UK Service Centre.

The SRS Model CS580 Voltage Controlled Current Source creates a new capability for researchers needing ultra-low current noise in a flexible, easy to use instrument. The CS580 is a natural companion product for use with sensitive AC instruments such as lock-in amplifiers, providing a straightforward method for generating precision low-noise currents directly from an AC or DC control voltage. Current is both sourced and sinked with adjustable compliance voltage up to ±50 V, giving full “fourquadrant” performance. The CS580 is a welcome addition to any research lab studying semiconductors and transport phenomena, superconductivity, and nanotechnology, to name just a few.

Ultra-Low Noise Design
With up to ±50 V compliance voltage, the CS580 can source and sink precision AC and DC currents from 100 fA to 100 mA. The CS580’s ultra-low noise design takes advantage of the best transistors, op-amps, and discrete components available combined with careful high impedance board layout to achieve the highest performance possible. The design even features linear power supplies rather than switching power supplies, so switching frequency interference can never be a problem. An actively driven guard provides the greatest bandwidth (up to 150 kHz) and lowest possible leakage current. There’s also a buffered monitor output for high impedance voltage measurements.

CPU Clock Stopping Architecture
Front-panel instrument configuration is managed by a microcontroller whose system clock only oscillates during the brief moments needed to change instrument settings. The drive electronics are completely static, with no “scanning” or refresh to generate the slightest interference. Whenever the microcontroller becomes active, the “CPU Activity” indicator illuminates, clearly showing when the digital clock is running. This occurs in response to front-panel button presses or remote computer commands. But when the microcontroller is not active, there is absolutely no digital interference at all.

RS-232 and Optical Fiber Interfaces
There is an RS-232 computer interface on the rear panel of the SRS CS580. All functions of the instrument can be set or read via the interface. When sending commands to the instrument, the CS580’s microcontroller will be activated, and digital noise may be present. For remote interfacing with complete electrical isolation, the CS580 also has a rear-panel fiber optic interface. When connected to the SX199 Remote Computer Interface Unit, a path for controlling the CS580 via GPIB, Ethernet, and RS-232 is provided.

Specifications

Output
Compliance voltage	0 to 50 V (bipolar)
Compliance error	0.5 % + 0.2 V
DC output resistance	101² Ω (1 nA/V gain)
Output capacitance	<10 pF (filter off), <50 pF (filter on)
Guard output	–50 V to +50 V, 5 kΩ internal resistance
Output power	5 W (four quadrant sourcing/sinking)
THD	0.01 % typ.
Output connector	3-lug Triax for current output. Banana jacks for load voltage monitoring
CM voltage	250 Vrms (DC to 60 Hz)
CM isolation	>10¹⁰ Ω, <0.5 nF
Input
Input range	–2 V to +2 V
Input impedance	100 kΩ
Input connector	BNC
Remote Interfaces
RS-232	DB-9 connector, 9600 baud
Optical fiber	Connection to SX199 Optical Interface Controller. Provides connectivity to GPIB, RS-232 and Ethernet
General
Operating temperature	0 °C to 40 °C, non-condensing
Power	<30 W, 100/120/220/240 VAC, 50 Hz or 60 Hz
Dimensions	8.3” × 3.5” × 13” (WHD)
Weight	15 lbs.
Warranty	One year parts and labor on defects in materials and workmanship

AC Specifications
Gain	Max Output	Gain Error	Bandwidth (0 Ω load)	Typical Noise (p-p/RMS) (0.1 Hz to 10 Hz)	Typical Noise (RMS) (10 Hz to bandwidth)
1 nA/V	2.2 nA	1.2%	10 kHz	240 fA / 40 fA	<20 pA
10 nA/V	22 nA	1.2%	10 kHz	600 fA / 100 fA	<20 pA
100 nA/V	220 nA	1.0%	20 kHz	5 pA / 800 fA	40 pA
1 μA/V	2.2 μA	0.5%	150 kHz	50 pA / 8 pA	1 nA
10 μA/V	22 μA	0.5%	300 kHz	500 pA / 80 pA	4 nA
100 μA/V	220 μA	0.5%	250 kHz	5 nA / 800 pA	40 nA
1 mA/V	2.2 mA	0.5%	250 kHz	50 nA / 8 nA	100 nA
10 mA/V	22 mA	0.5%	250 kHz	500 nA / 80 nA	300 nA
50 mA/V	110 mA	0.5%	150 kHz	5 μA / 400 nA	700 nA
DC Specifications
Gain	Max Output	Gain Error	Setting Resolution	Thermal Drift
1 nA/V	2 nA	0.4 % + 1 pA	100 fA	100 ppm/°C
10 nA/V	20 nA	0.3 % + 10 pA	1 pA	100 ppm/°C
100 nA/V	200 nA	0.3 % + 100 pA	10 pA	100 ppm/°C
1 μA/V	2 μA	0.1 % + 1 nA	100 pA	10 ppm/°C
10 μA/V	20 μA	0.05 % + 10 nA	1 nA	10 ppm/°C
100 μA/V	200 μA	0.05 % + 1 pA	10 nA	10 ppm/°C
1 mA/V	2 mA	0.05 % + 1 pA	100 nA	10 ppm/°C
10 mA/V	20 mA	0.05 % + 1 pA	1 μA	10 ppm/°C
50 mA/V	100 mA	0.1 % + 1 pA	10 μA	10 ppm/°C