Rigol DS1104Z-S Plus

The RIGOL DS1104Z-S Plus Digital Oscilloscope combines four-channel waveform acquisition, dual-channel signal generation and optional mixed-signal analysis in one compact test platform.

Designed for engineers, technicians, research laboratories, educational institutions and electronics service teams, the instrument provides:

• Four analogue oscilloscope channels
• 100 MHz analogue bandwidth
• Two integrated waveform-generator outputs
• Optional 16-channel digital logic analysis
• Up to 1 GSa/s real-time analogue sampling
• 12 Mpts standard memory
• Optional expansion to 24 Mpts
• Up to 30,000 wfms/s waveform capture
• Serial protocol triggering and decoding
• FFT, waveform mathematics and mask testing
• A 7-inch WVGA colour display

The integrated signal source differentiates the DS1104Z-S Plus from the DS1104Z Plus. Engineers can generate test waveforms, apply them to a circuit and observe the resulting analogue or digital response without using a separate function generator.

100 MHz Analogue Bandwidth

The DS1104Z-S Plus provides 100 MHz analogue bandwidth across four input channels. Its calculated rise time is approximately 3.5 ns.

It is suitable for analysing:

• Microcontroller clock and control signals
• FPGA and CPLD outputs
• PWM and pulse waveforms
• Switching power-supply signals
• Sensor and actuator outputs
• Analogue amplifier circuits
• Embedded communication interfaces
• Timing and phase relationships
• Input and output waveform behaviour
• General signal-integrity problems

The complete measurement bandwidth depends on the oscilloscope, probe bandwidth, grounding method, signal rise time, source impedance and connection quality.

Four Analogue Channels

The four-channel architecture allows engineers to examine several related signals simultaneously.

Typical four-channel measurements include:

• Clock, data and enable signals
• Input and output waveforms
• Voltage and current relationships
• Multiple power rails
• Sensor output and controller response
• High-side and low-side control signals
• Multi-stage start-up sequences
• Phase and timing comparison

Four analogue inputs are particularly useful when troubleshooting circuits in which one event affects several signals or subsystems.

Optional 16-Channel Logic Analysis

The Plus-series digital interface supports up to 16 digital channels when the optional RPL1116 logic probe is connected.

This mixed-signal capability supports:

• Microcontroller GPIO debugging
• FPGA and CPLD testing
• Parallel bus analysis
• Clock and data timing measurements
• Digital control-system troubleshooting
• Time-correlated analogue and digital display
• Triggering across analogue and digital inputs
• Configurable logic thresholds

The RPL1116 probe is an optional accessory and should not be described as standard unless it is included in the RevineTech quotation.

Channel-Dependent Analogue Sampling

The DS1104Z-S Plus provides a maximum real-time analogue sample rate of 1 GSa/s.

Sampling allocation is:

• 1 GSa/s with one analogue channel active
• 500 MSa/s per channel with two analogue channels active
• 250 MSa/s per channel with three or four analogue channels active

Engineers should consider this allocation when measuring faster signals across several channels simultaneously.

Deep Acquisition Memory

The manufacturer’s base configuration provides 12 Mpts standard analogue memory. The optional MEM-DS1000Z licence expands the maximum record length to 24 Mpts.

Standard memory allocation:

• 12 Mpts with one active channel
• 6 Mpts per channel with two active channels
• 3 Mpts per channel with three or four active channels

Maximum memory with the option activated:

• 24 Mpts with one active channel
• 12 Mpts per channel with two active channels
• 6 Mpts per channel with three or four active channels

Deep memory helps maintain useful sample resolution during longer acquisitions.

It is valuable for:

• Serial communication packets
• Power-supply start-up sequences
• PWM and pulse-train analysis
• Embedded-system timing measurements
• Intermittent fault investigation
• Extended waveform monitoring
• Long control sequences
• Production validation

Salicon currently advertises the memory licence as part of its commercial bundle, but RevineTech should state up to 24 Mpts unless the licence is confirmed on every supplied unit.

Integrated Dual-Channel 25 MHz Waveform Generator

The DS1104Z-S Plus includes a built-in two-channel function and arbitrary waveform generator.

Generator performance includes:

• Two independent output channels
• 200 MSa/s generation sample rate
• 14-bit vertical resolution
• Maximum sine-wave frequency of 25 MHz
• Standard and arbitrary waveform generation
• Independent amplitude, offset and phase controls
• High-impedance and 50 Ω load settings
• AM and FM modulation support

The integrated generator can be used for:

• Amplifier testing
• Filter evaluation
• Sensor simulation
• Clock generation
• Pulse generation
• Circuit-response testing
• Component evaluation
• Educational experiments
• Embedded-system development

RIGOL identifies the dual-channel 25 MHz source as a standard feature of the “-S” models.

Standard and Arbitrary Waveforms

The built-in generator supports:

• Sine
• Square
• Pulse
• Ramp or triangle
• Noise
• DC
• Arbitrary waveforms

Available built-in waveform shapes include:

• Sinc
• Exponential rise
• Exponential fall
• ECG
• Gaussian
• Lorentz
• Haversine

Maximum frequency varies by waveform type:

• Sine: up to 25 MHz
• Square: up to 15 MHz
• Pulse: up to 1 MHz
• Ramp: up to 100 kHz
• Built-in waveforms: up to 1 MHz
• Arbitrary waveforms: up to 10 MHz
•  

Generator Output Range

The waveform generator provides:

• 20 mVpp to 5 Vpp into a high-impedance load
• 10 mVpp to 2.5 Vpp into a 50 Ω load
• DC offset up to ±2.5 V into High-Z
• DC offset up to ±1.25 V into 50 Ω

The selected load setting must match the connected circuit to maintain the intended output amplitude.

Fast Waveform Capture

The DS1104Z-S Plus provides waveform capture rates up to 30,000 waveforms per second.

Fast acquisition improves the probability of detecting:

• Short glitches
• Runt pulses
• Timing violations
• Signal dropouts
• Unstable waveform edges
• Abnormal pulse widths
• Intermittent noise
• Communication faults

The intensity-graded display uses up to 256 levels to distinguish frequently occurring waveform activity from rare events.

Waveform Recording and Playback

The DS1104Z-S Plus supports real-time waveform recording, playback and analysis through the REC-DS1000Z function.

It allows engineers to:

• Record successive waveform events
• Replay captured waveforms
• Review events frame by frame
• Compare normal and abnormal signals
• Investigate intermittent faults
• Examine events preceding a failure
• Perform post-acquisition analysis

The recording function is licence-dependent in RIGOL’s base configuration. Salicon currently advertises the REC-DS1000Z option as included, but RevineTech should confirm the active bundle before publishing it as standard.

Trigger Functions

The oscilloscope supports trigger modes for isolating specific waveform conditions.

Trigger functions include:

• Edge
• Pulse width
• Slope
• Video
• Pattern
• Duration
• Timeout
• Runt
• Window
• Delay
• Setup and hold
• Nth edge

Advanced trigger availability can depend on the installed AT-DS1000Z licence.

These trigger modes help locate:

• Narrow pulses
• Timing violations
• Missing transitions
• Incorrect voltage levels
• Unstable waveform edges
• Specific communication events
•  

Serial Bus Triggering and Decoding

The DS1104Z-S Plus supports analysis of common embedded communication buses.

Supported protocols include:

• RS232 and UART
• I2C
• SPI

Serial decoding displays interpreted communication data alongside the physical waveform.

This helps engineers identify:

• Missing acknowledgements
• Incorrect data
• Timing errors
• Communication interruptions
• Voltage-level problems
• Electrical noise
• Physical-layer faults

RIGOL lists serial decoding and some associated triggers as software options. Salicon currently advertises the serial-decoder and advanced-trigger licences as included, but RevineTech should verify its own supplied configuration.

Parallel Bus Analysis

When the optional RPL1116 logic probe is connected, the instrument supports parallel bus and digital timing analysis.

This is useful for:

• Microcontroller data buses
• FPGA outputs
• Address and data lines
• Digital control systems
• Timing correlation between logic signals
• Mixed analogue and digital debugging
•  

Automatic Measurements

The oscilloscope supports automatic voltage, timing, frequency and pulse measurements.

Available measurements include:

• Maximum and minimum voltage
• Peak-to-peak voltage
• Top and base voltage
• Average voltage
• RMS voltage
• Frequency
• Period
• Rise and fall time
• Positive and negative pulse width
• Duty cycle
• Overshoot and preshoot
• Phase
• Delay

Up to five measurements can be displayed simultaneously, with statistics such as minimum, maximum and average values.

FFT and Waveform Mathematics

The DS1104Z-S Plus provides waveform mathematics and frequency-domain analysis.

Available functions include:

• Addition
• Subtraction
• Multiplication
• Division
• FFT
• Digital filtering
• Integration
• Differentiation
• Logical waveform operations

FFT analysis can support:

• Harmonic measurement
• Switching-frequency analysis
• Noise investigation
• Clock-spectrum observation
• EMI troubleshooting
• Detection of unwanted oscillations
• Amplifier and filter evaluation
•  

Mask and Pass/Fail Testing

Mask testing compares acquired waveforms against user-defined tolerance limits.

It can support:

• Production-line validation
• Repetitive quality checks
• Signal-stability monitoring
• Component comparison
• Detection of waveform deviations
• Basic automated testing

The AUX output can be used for trigger or pass/fail signalling.

Display and Connectivity

The instrument includes a 7-inch WVGA TFT colour display with 800 × 480 resolution.

Display and connectivity features include:

• Up to 256 waveform intensity levels
• Dots and vector display modes
• Adjustable persistence
• Y-T, X-Y and Roll modes
• USB Host
• USB Device
• LAN
• LXI support
• AUX output
• Optional USB-to-GPIB connectivity

HDMI output is not listed for the DS1104Z-S Plus and should not be added to the product page.

Applications

The RIGOL DS1104Z-S Plus is suitable for:

• Embedded-system development
• Microcontroller debugging
• FPGA and CPLD testing
• Mixed-signal circuit analysis
• Function-generator applications
• Amplifier and filter testing
• Sensor simulation
• Analogue circuit testing
• Digital logic analysis
• Parallel bus debugging
• Serial protocol testing
• Power-supply analysis
• PWM signal testing
• Production-line inspection
• Research and development
• Engineering education
• Electronic service and repair
•  

Why Buy from RevineTech?

RevineTech supplies professional test and measurement equipment for electronics development, industrial testing, research, education and production applications.

Technical product-selection support can include:

• DS1104Z-S Plus configuration
• RPL1116 logic-probe selection
• Memory and software-option verification
• Passive and differential probe selection
• High-voltage probe selection
• Current probe selection
• Calibration documentation
• USB-to-GPIB connectivity
• Automated test-system integration