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CS448 Isolated Oscilloscope
The CS448 is a 1kV isolated channel oscilloscope designed to be useful anywhere isolation is needed - in particular power electronics. The CS448 supports - via the Cscope4 application- Frequency Response Analysis (using the built in isolated signal generator), Protocol decoding, Maths, streaming, Excel and Matlab connectivity, Spectrum Analysis, mixed signal triggering and display. The high channel common mode rejection ratio (100 dB at 50 MHz) means the CS448 can be used to measure signals such as gate drives and current sensors whose common mode is slewing quickly.
The CS448 comes complete with:
4 off 1x/10x (8/80V) 250 Mhz probes
4 off 100x (800V) 300 MHz probes. If you wish these can be swapped for 200 x probes (1600V)
4 off Scope probe cable Common mode chokes to reduce high edge rate ring.
2 off isolated digital channel pods (Chan 1-4 + Chan 5-8).
Power Supply + IEC cable for your country
USB3 cable
SMA - BNC adaptor for signal generator.
SFP module for Ethernet - choose optical or copper
CD with application, data sheet and user manual. Drivers coming soon.
Install app note.
You might also like to check out the CS1110 VceSat Probe and the CS1070 Power amplifier to increase the versatility of the system.
Parameter Specification Notes Analog Bandwidth 200MHz Number of channels 4 Isolation Voltage 1kV working Supported by IEC 61010-1 creepage and clearance, reinforced, Category III and 1.5kV Class II. Plan to certify CMRR > 120 dB at 1 MHz > 115 dB at 10 MHz > 100 dB at 50 MHz Done using a 20 dBV test source ADC resolution 14 bits Input Ranges ±0.8V and ±8V Use probes to extend the range, eg 800V with 100x probe. The application automatically scales all values to compensate for probe attenuation. Sample Rate 500 MSPS All Analog and Digital channels simultaneously. Sample Memory 250 M Samples For a single channel. For four channels = 62.5 Msamples (125 msecs at full rate). CM leakage to other channels <-125dBc 20 dBV signal to CM channel, measured on other channels whole bandwidth, ±0.8V range Channel to Channel Skew < ±144ps Done using a 1 MHz coherent sine wave Cross talk at 10.7 and 30 MHz < -115 dBc Using 1.6V p-p into the channel RMS Channel Noise 1 M samples < 210 uV rms, ±0.8V range < 2.1mv rms, ±8V range Inputs open Pk-Pk Channel noise 1 M samples 1.8mVp-p for ±0.8V range 15mVp-p for ±8V range Inputs open Sample clock jitter 300 fs rms Sample clock absolute Freq accuracy ±2 ppm At 23 deg C Sample clock temp stability ±0.5 ppm Over -40 to +85 deg C Enob (rms) 11.6 bits, or 1 part in 3,300 Inputs open Noise free bits 10.3 bits, or 1 part in 1300 Inputs open Spectral Noise floor, no protrusions -100 dBV -115dBV <2MHz, 200 MHz BW, 1kHz resolution >2MHz, 200 MHz BW, 1kHz resolution Sinad > 64 dBc at 1 MHz > 63 dBc at 10 MHz > 55 dBc at 30 MHz 1 Vp-p into 50 ohms signal HD2+3 < -80dB at 1MHz < -76 dB at 10 MHz < -71 dB at 30 MHz 1 Vp-p into 50 ohms signal THD < -76 dB at 1 MHz < -74 dB at 10 MHz < -67 dB at 30 MHz 1 Vp-p into 50 ohms signal Pulse Flatness < 700uV < 2mV < 1V 0.5V pulse, 500us duration, ±0.8V range 0.5V pulse, 500 us duration, ±8V range 500V pulse, 500us duration, 100x probe Overload recovery 4ns Recovery from 10x overload Maximum Differential Input Voltage ±1 kV, derated above 1 MHz. Derated at 20dB/decade Maximum Common Mode Input Voltage ±1 kV, derated above 10 MHz. Derated at 20dB/decade Spectral Flatness ±0.2dB from 0 - 160 MHz -2 dB at 200 MHz Supports 200 MHz Bandwidth Input Resistance 1 M Ohm DC resistance Input Capacitance 20 pF Signal Input to Signal Common Isolation Capacitance < 14pf Channel ground to chassis Isolation Capacitance < 6pf Channel to channel Parameter Specification Notes Number of inputs 8 Common mode transient immunity Input threshold max 2.3V rising 0.9V falling Inputs are Hysteretic Isolation capacitance < 5pF To chassis ground, at 1 MHz Isolation operating voltage 880V DC 1130V DC Re-inforced insulation, EN61010-1 Re-inforced insulation, CSA and IEC 60950-1 Maximum Data rate 100 Mbps Propagation delay 13ns typ Compensated for within CS448 Parameter Specification Notes Output Frequency Range DC - 65 MHz -3dB at 65MHz on filtered output Outputs Unfiltered, filtered Unfiltered is used for square wave signals with minimum rise time. Filtered output includes reconstruction filter for maximum smoothness CMRR > 120 dB at 1 MHz > 115 dB at 10 MHz > 100 dB at 50 MHz Limited by analog inputs used for test. 20dBV signal applied to coax common linking sig gen and analog input. Common mode transient immunity 100 kV/us For control of the output DAC Isolation Voltage 600VRMS working Supported by IEC 61010-1 creepage and clearance, reinforced, Category III Plan to certify Unfiltered rise/fall time 3.2ns Full scale swing Sine Wave Flatness ±0.2 dB 0 - 40 MHz filtered DAC resolution 12 bits Output amplitude ±1mV to ±3.5V p-p Programmable 1mV resolution, constrained to total range ±3.5V including offset Output offset 0 to ±3.2V p-p Programmable, 1mV resolution Parameter Specification Notes Supported Modes USB 2.0 and USB 3.0 USB 2.0 @480 Mbit/sec and USB 3.0 at 5 Gbps Throughput 30 MBps and 180 MBps Connector USB-C Plug is reversible Protection Common mode choke + ESD diodes Using ECMF04-4HSWM10 Indicators USB on and correctly connected Loss of signal is indicated by LED off. Parameter Specification Notes Connection method Small Form factor Pluggable module (SFP) An SFP socket is provided for use with an SFP module. Either an optical or a copper connected SFP module will be supplied based on the order. Wired Supported Modes Ethernet 10/100/1000 Using an RJ45 Ethernet socket connected copper SFP module. Transformer based isolation. Specific SFP module required. Optical supported mode Ethernet 1000BASE-LX Gigabit (1G) Ethernet using an LC fibre cable connected optical module. Full optical isolation. Throughput 12 MBps and 120 MBps Connector SFP Socket Small Form factor Pluggable socket Indicators Ethernet on and correctly connected Loss of signal is indicated by LED off. Parameter Specification Notes Input Voltage Range 10-24 DC Power consumption 36W Connector Barrel Socket, 2.5mm I.D. x 5.5mm O.D Connection is reverse polarity protected. Protection Clamped to +68V Clamped to -32V Operates with 35V Survives with 5V ISO16750 pulse A (79 ohm 0.5 ohm) ISO7637 Pulse 1 (-600V, 50 ohm) FPGA operation at 5V, ADC operational at 7V. Indicators Power On Software controlled. Parameter Specification Notes Input/Outputs 16 Programmable as In or Out Logic Level Programmable 1.8 - 5V All I/O operate at the same logic level Control IC Silego SLG46533V User configurable programmable logic with analog functions Resources 24 Look Up Tables (LUTs) Prog Oscillator, 25MHz, 2MHz, and 25 kHz. Prog Delay, 3 Output 16x8 RAM and OTP 4 Analog Comparators 2 x Deglitch filters 2-4 bit for complex logic All resources can be arbitrarily connected as required. Programming Silego GP Designer Visual schematic designer of circuit functions downloaded into CS448 Trigger In/Out Bidirectional Trigger The trigger may be programmed to initiate a Digital Port sequence, or the Digital Port can trigger an analog acquisition. Protection Over voltage protection to +12V and -6V The Link Port is used for controlling Cleverscope accessory devices such as the CS1070 1A 50 MHz power amplifier, and the CS1110 VCE Sat Probe. It also includes RS232, SPI and I2C ports for controlling user equipment. Parameter Specification Notes Digital Port Use 2 Digital In, 4 Digital Out Used for accessory control I2C Port 400 kbps port For control of user devices SPI Port 1 MHz SPI Port For control of user device, mutually exclusive with RS232 Port RS232/RS422 Port 3V level RS232 port, or differential RS422 port, programmable baud rate For control of user device, mutually exclusive with SPI Port Trigger Port Trigger In/Out and control Used for linkage to CS328A link port Protection Over voltage and reverse voltage protection using ESD devices The Link In/Out Port is used daisy chaining 2 or more CS448 Cleverscopes. Parameter Specification Notes Clock ports Reference clock, 500 kHz The last CS448 in the chain provides the 500 kHz reference clock that is used for simultaneous sampling by all units. Trigger Ports Trigger transfer The Trigger Ports transfer the triggering unit's trigger to other units. Control Ports Control signals The control signals are used to signal readiness to trigger, and sampling state. The probe compensator is used to compensate 10x, 100x and 200x probes. Parameter Specification Notes Signal 1 kHz Square Wave Amplitude Output impedance is 50 Ohm. Rise Time 3ns Parameter Specification Notes Temperature 0°C to +40°C -20°C to +60°C Operating Storage Cooling Method Fan Assisted Humidity 0°C to +40°C >40°C <90% relative humidity <60% relative humidity Altitude <3,000m 15,000m Operating Non-operating Parameter Specification Notes Size Height 55 mm Width 164 mm Length 247 mm Including feet Including connectors Weight (approx) 1150 gm 2400 gm Acquisition Unit only Complete in display box Material Powder Coated Aluminium Analog Inputs
Digital Inputs
100 kV/us
Signal Generator
Output Impedance
50 Ohm
USB
Ethernet
Power Supply
Digital Port
Link Port
Link In/Out Port
Probe Compensator Output
8 -12V
Environmental
Mechanical
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