The Keysight (Agilent) DSA90254A is a 2.5 GHz high-performance Digital Signal Analyzer (oscilloscope) representing the flagship capabilities of the Infiniium 90000A series. Designed for high-speed digital design and compliance testing, this model features 4 analog channels and delivers an industry-leading real-time sampling rate of 40 GSa/s simultaneously across all four channels. The DSA package comes standard with 50 Mpts of memory per channel, EZJit Plus jitter analysis software, and serial data analysis capabilities, making it a robust platform for demanding serial data standard validation.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | LAN (Gigabit Ethernet), GPIB, USB 2.0 (Host/Device), LXI Class C, DVI, VGA |
| Display | 12.1-inch color XGA TFT-LCD with touch screen |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 - 240 VAC, 50/60 Hz, maximum 800 W |
| Operating Temperature | 5 °C to +40 °C |
| Dimensions (W×H×D) | 432 mm x 283 mm x 505 mm |
| Weight | 20.4 |
| Form Factor | Benchtop |
| Rackmount Kit Option | Yes |
Vertical System
| Parameter | Value |
|---|---|
| Analog Bandwidth | 2.5 GHz |
| Calculated Rise Time (10% to 90%) | 160 ps |
| Number of Input Channels | 4 |
| Input Impedance | 50 Ω |
| Input Coupling | DC |
| Vertical Resolution | 8 bits (up to 12 bits with High Resolution mode) |
| Input Sensitivity Range | 1 mV/div to 1 V/div |
| Maximum Input Voltage | 5 V rms |
| DC Gain Accuracy | ±2% of full scale |
| Calculated Rise Time (20% to 80%) | 111 ps |
| Probe Interface | AutoProbe |
Horizontal System
| Parameter | Value |
|---|---|
| Main Timebase Range | 5 ps/div to 20 s/div |
| Timebase Accuracy | ±0.1 ppm |
| Intrinsic Jitter Floor | 150 fs rms |
Acquisition System
| Parameter | Value |
|---|---|
| Maximum Real-Time Sample Rate | 40 GSa/s on 2 channels, 20 GSa/s on 4 channels |
| Standard Memory Depth | 50 Mpts per channel |
| Maximum Memory Depth Option | 1 Gpts per channel |
Trigger System
| Parameter | Value |
|---|---|
| Trigger Sources | Channels 1-4, Auxiliary, Line |
| Trigger Modes | Edge, Glitch, Width, Transition, Runt, Timeout, Pattern, State, Window, Setup/Hold, Sequence |
| Trigger Coupling | DC, AC, LF Reject, HF Reject |
| Auxiliary Trigger Input Impedance | 50 Ω |
| Trigger Level Range | ±4 divisions from center screen |
Measurements & Analysis
| Parameter | Value |
|---|---|
| Automatic Measurements | Over 60 automatic measurements |
| Waveform Math | Operators: Add, Subtract, Multiply, Divide, FFT, Integrate, Differentiate, Square Root, Absolute, Common Log, Natural Log, Exponential |
| Jitter Analysis | EZJit and EZJit Plus (included standard on DSA models) |
Host Computer System
| Parameter | Value |
|---|---|
| Storage Drive | ≥250 GB removable hard disk drive or solid state drive |
Display & User Interface
| Parameter | Value |
|---|---|
| Display Size and Type | 12.1-inch color TFT-LCD |
| Display Resolution | 1024 x 768 (XGA) |
| Waveform Display Formats | Single, Dual, Quad, Octal, XY |
Connectivity & Interface Ports
| Parameter | Value |
|---|---|
| USB Ports (Host) | 2 x USB 2.0 front panel, 4 x USB 2.0 rear panel |
| USB Ports (Device) | 1 x USB 2.0 rear panel |
| Reference Clock Input | 10 MHz (BNC) |
| Reference Clock Output | 10 MHz (BNC) |
| External Video Output | 1 x DVI, 1 x VGA |
Power & Environmental
| Parameter | Value |
|---|---|
| Non-Operating Temperature Range | -40 °C to +70 °C |
| Operating Humidity | Up to 95% relative humidity at +40 °C |
| Operating Altitude | Up to 3,000 meters (10,000 feet) |
| Calibration Interval | 1 year |
Compliance
| Parameter | Value |
|---|---|
| Safety Certifications | CAN/CSA-C22.2, UL 61010-1, EN 61010-1 |
| EMC Compliance | IEC 61326-1, EN 61326-1, CISPR 11 Group 1 Class A |
Interfaces
| Parameter | Value |
|---|---|
| GPIB Interface | IEEE 488.2 |
| PCI Express Slot | PCI Express x4 (external, for data transfer) |
| LAN Interface | 10/100/1000Base-T Ethernet (RJ-45) |
| LXI Compliance | LXI Class C |
| Audio Connections | Microphone in, Line in, Line out |
Power Requirements
| Parameter | Value |
|---|---|
| AC Input Voltage | 100 to 240 VAC (±10%) |
| AC Input Frequency | 47 to 63 Hz |
| Maximum Power Consumption | 800 W |
Environmental
| Parameter | Value |
|---|---|
| Vibration - Operating | Random vibration 0.21 g (rms), 5 to 500 Hz, 10 min/axis |
| Vibration - Non-operating | Random vibration 2.09 g (rms), 5 to 500 Hz, 10 min/axis |
| Operating Shock | 3 g (half-sine, 11 ms pulse) |
| Non-Operating Shock | 30 g (half-sine, 11 ms pulse) |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Input Connector | 3.5 mm (m) |
Performance
| Parameter | Value |
|---|---|
| Timebase Aging | ±0.1 ppm/year |
| Noise Floor (10 mV/div) | 0.171 mV (typical) |
| Noise Floor (50 mV/div) | 0.613 mV (typical) |
| Noise Floor (100 mV/div) | 1.15 mV (typical) |
Technology
Digital Signal Analyzer (Oscilloscope)
Applications
High-speed digital design, compliance testing, jitter analysis, serial bus decoding