Rigol DS1074Z Plus

The RIGOL DS1074Z Plus Digital Oscilloscope is designed for engineers, technicians, laboratories and educational institutions that need four-channel analogue measurement with the option to add digital logic analysis.

The instrument provides 70 MHz analogue bandwidth, four analogue channels and a maximum real-time sampling rate of 1 GSa/s. Its integrated digital-channel interface allows the oscilloscope to be upgraded to a mixed-signal configuration by connecting the optional RPL1116 16-channel logic probe.

This makes the DS1074Z Plus suitable for general electronics testing, embedded-system development, analogue and digital circuit debugging, power-supply analysis and production validation. RIGOL’s UltraVision technology provides deep memory, intensity-graded waveform display, fast acquisition and waveform recording for investigating both repetitive and intermittent signal behaviour.

70 MHz Analogue Bandwidth

The DS1074Z Plus provides 70 MHz bandwidth across four analogue input channels.

It is suitable for analysing:

• Microcontroller clock and control signals
• PWM waveforms
• Sensor outputs
• Analogue amplifier circuits
• Power-supply ripple
• Switching regulator control signals
• Communication interfaces
• Audio and control circuits
• Input and output signal relationships
• Phase and timing differences

Its calculated rise time is approximately 5 ns. The effective measurement bandwidth also depends on the connected probe, grounding method, source impedance and signal connection.

Four Analogue Channels

The four-channel architecture allows users to observe several related signals simultaneously.

Typical measurements include:

• Clock, data and enable signals
• Input and output waveforms
• Voltage and current correlation
• Multiple power rails
• Sensor signal and controller response
• High-side and low-side control signals
• Reference and measured waveforms
• Multi-stage timing sequences

Four-channel acquisition is particularly useful when debugging systems where one signal event affects several parts of a circuit.

Optional 16-Channel Logic Analysis

The “Plus” designation means the instrument includes a digital-channel interface. Adding the optional RPL1116 logic probe activates up to 16 digital input channels.

This mixed-signal capability supports:

• Time-correlated analogue and digital analysis
• Microcontroller GPIO debugging
• FPGA and CPLD testing
• Parallel bus analysis
• Clock and data timing analysis
• Digital control-system troubleshooting
• Observation of power behaviour during logic switching

The digital channels are not available without the compatible RPL1116 probe. The probe should therefore be listed separately unless it is confirmed as part of the commercial package.

Channel-Dependent Sampling Rate

The DS1074Z Plus provides a maximum real-time sampling rate of 1 GSa/s.

Typical analogue sampling allocation is:

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

The available sample rate is shared across active acquisition channels. Engineers should consider this allocation when measuring faster signals on several channels simultaneously.

The sampling rate, analogue bandwidth and signal rise time together determine how accurately the oscilloscope represents a waveform.

Deep Analogue Acquisition Memory

The DS1074Z Plus includes 12 Mpts standard analogue memory depth.

Typical standard memory allocation is:

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

The optional memory upgrade increases the maximum record length to 24 Mpts:

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

Deep memory allows longer waveform captures while retaining a useful sampling rate.

It is beneficial for:

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

RIGOL identifies 12 Mpts as standard and 24 Mpts as optional. A product bundle may include the memory option, but this should be confirmed before publication.

Digital Acquisition Memory

When the digital-channel capability is used, the official product information lists:

• 6 Mpts standard digital memory
• Up to 12 Mpts optional digital memory

Digital memory depth depends on the active logic-channel configuration and installed options.

It supports longer logic acquisitions for:

• Parallel bus analysis
• Digital timing measurements
• Microcontroller debugging
• FPGA signal observation
• Embedded-system troubleshooting
•  

Fast Waveform Capture

The DS1074Z Plus provides a maximum waveform capture rate of up to 30,000 waveforms per second under specified operating conditions.

Fast waveform acquisition improves the probability of detecting occasional signal events such as:

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

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

Hardware Waveform Recording and Playback

The oscilloscope supports hardware waveform recording, playback and analysis.

This function allows users to:

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

Waveform recording may depend on the installed option configuration. Its availability should be verified on the supplied instrument.

Vertical Measurement Range

The analogue inputs provide a vertical sensitivity range of:

• 1 mV/div to 10 V/div

The instrument uses 8-bit analogue-to-digital conversion, providing 256 vertical quantisation levels.

The vertical range supports measurements of:

• Sensor outputs
• Logic signals
• Amplifier waveforms
• Power-supply ripple
• Reference voltages
• Audio signals
• General electronic circuits
•  

Trigger Functions

The DS1074Z Plus provides multiple trigger types for isolating specific signal conditions.

Available trigger functions include:

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

These trigger modes help engineers detect:

• Narrow or incomplete pulses
• Timing errors
• Missing transitions
• Incorrect voltage levels
• Unstable waveform edges
• Specific communication events

Some advanced trigger functions may depend on installed software options.

Serial Bus Triggering and Decoding

The DS1074Z Plus supports serial protocol triggering and decoding for commonly used embedded buses.

Supported protocols include:

• RS232 and UART
• I2C
• SPI

Protocol analysis displays decoded communication information alongside the electrical waveform.

It helps users identify:

• Missing acknowledgements
• Incorrect data
• Timing errors
• Communication interruptions
• Noise-related problems
• Voltage-level faults
• Physical-layer issues

RIGOL identifies serial bus triggering and decoding as option-dependent. These functions should be described as included only when their licences are confirmed on the supplied instrument.

Parallel Bus Analysis

When the optional digital-channel interface is used, the DS1074Z Plus supports parallel bus analysis.

This is useful for:

• Microcontroller data buses
• FPGA outputs
• Digital control systems
• Address and data line analysis
• Timing correlation between several digital signals

Parallel bus measurements require the RPL1116 logic probe.

Automatic Measurements

The oscilloscope supports automatic voltage, timing and frequency measurements.

Typical measurements include:

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

Measurement statistics can display minimum, maximum, average and standard deviation values over repeated acquisitions.

FFT and Waveform Mathematics

The DS1074Z Plus provides waveform mathematics and frequency-domain analysis.

Functions include:

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

FFT analysis can be used for:

• Harmonic measurement
• Switching-frequency analysis
• Noise investigation
• Clock-spectrum observation
• EMI troubleshooting
• Identification of unwanted oscillations

The built-in FFT is intended for general electronics analysis and does not replace a dedicated spectrum analyser for advanced RF testing.

Mask and Pass/Fail Testing

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

This function can support:

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

The AUX output can provide a trigger or pass/fail signal to external equipment.

Display and User Interface

The instrument includes a 7-inch WVGA TFT colour display.

Display features include:

• 800 × 480 pixel resolution
• Up to 256 waveform intensity levels
• Dots and vector display modes
• Adjustable persistence
• Y-T, X-Y and Roll modes
• Multi-channel waveform display
• Dedicated front-panel controls
• Search and navigation functions

The display can show analogue waveforms, digital channels, measurement values and decoded bus information.

Connectivity and Automated Testing

The DS1074Z Plus supports laboratory networking, computer communication and automated test integration.

Available interfaces include:

• USB Host
• USB Device
• LAN
• LXI support
• AUX output
• Optional USB-to-GPIB connectivity

These interfaces support:

• Waveform transfer
• Screenshot storage
• Remote control
• Automated measurements
• Production test integration
• Laboratory data collection

HDMI output is not listed for the DS1074Z Plus.

No Built-In Waveform Generator

The DS1074Z Plus does not include an integrated waveform generator.

A dual-channel 25 MHz waveform generator is available on the DS1074Z-S Plus model.

Users who need oscilloscope, logic analyser and signal-generation functions in one instrument should select the “-S Plus” version.

Applications

The RIGOL DS1074Z Plus is suitable for:

• Embedded-system development
• Microcontroller debugging
• FPGA and CPLD testing
• Mixed-signal circuit analysis
• Analogue circuit testing
• Digital logic analysis
• Parallel bus debugging
• Serial protocol testing
• Power-supply analysis
• PWM signal testing
• Sensor and controller validation
• Electronic maintenance
• Production-line inspection
• Research and development
• Engineering education
• Service and repair
•  

Why Buy from RevineTech?

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

Technical selection assistance can include:

• DS1074Z Plus configuration
• RPL1116 logic-probe selection
• Memory-depth options
• Serial decoding functions
• Advanced trigger options
• Passive and differential probes
• High-voltage probes
• Current probes
• Calibration requirements
• Automated test integration