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.

Note: Due to high demand current lead time on this product is two weeks from receipt of your order.

Analog Inputs

Parameter

Specification

Notes

Number of channels

4


Isolation Voltage

1kV working

Supported by IEC 61010-1 creepage and clearance, reinforced, Category III

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

< 200 uV rms, ±0.8V range

< 2mv 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 Freq tolerance

±10 ppm

At 23 deg C

Sample clock temp stability

±15 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

< 200mV

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

< 12pf

Channel ground to chassis

Isolation Capacitance

< 6pf

Channel to channel

Digital Inputs

Note: Version 1 of the CS448 does not have isolated digital inputs. Version 2 does.

Parameter

Specification

Notes

Number of inputs

8


Common mode transient immunity

100 kV/us


Input threshold max

2.3V rising 0.9V falling

3.5V rising 1.5V falling

Programmable options

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

Signal Generator

Parameter

Specification

Notes

Output Frequency Range

DC - 65 MHz

-3dB at 65MHz on filtered output

Outputs

Unfiltered, filtered

Unfiltered is used for Frequency Response Analysis and has maximum flatness. 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

800VRMS 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 - 65 MHz unfiltered

0 - 40 MHz filtered

DAC resolution

14 bits


NCO Resolution

24 bits

10.7 Hz resolution at 180 MSPS

Output amplitude

±1mV to ±3.5V p-p

Programmable 1mV resolution, constrained to total range ±3.5V including offset

Output offset

0 to ±3.5V p-p

Programmable, 1mV resolution

USB

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.

Ethernet

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.

SFP-1GBT-05 Bel Fuse Inc. | 507-1605-ND DigiKey Electronics

Optical supported mode

Ethernet 1000BASE-LX

Gigabit (1G) Ethernet using an LC fibre cable connected optical module. Full optical isolation.

FTLF8519P3BNL Finisar Corporation | 775-1083-ND DigiKey Electronics

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.

Power Supply

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.

Digital Port

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

Link Port

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 pbps 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

Link In/Out Port

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.

Probe Compensator Output

The Link In/Out Port is used daisy chaining 2 or more CS448 Cleverscopes.

Parameter

Specification

Notes

Signal

1 kHz Square Wave


Amplitude

2V

Output impedance is 1.3 kOhm.

Rise Time

250ns

Limits EMC and overshoot issues

Environmental

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

Mechanical

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


Download our datasheet for the full specification

PRICE $USD 9600.00

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