The Keysight Agilent 54645A is a classic 2-channel, 100-MHz digital storage oscilloscope designed for mixed-signal troubleshooting. Featuring Agilent's proprietary MegaZoom technology, it offers a deep 1 MB memory per channel and a 200 MSa/s sample rate, allowing engineers to capture long time spans with a high sampling resolution and a highly responsive analog-like display update rate.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Rear-panel expansion slot (supports optional HP-IB, RS-232, or Parallel interface modules) |
| Display | 7-inch monochrome raster CRT |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 to 240 VAC (±10%), 45 to 440 Hz, 100 VA max |
| Operating Temperature | 0 °C to +55 °C |
| Dimensions (W×H×D) | 322 mm × 172 mm × 317 mm |
| Weight | 6.2 kg |
Vertical System - Analog Channels
| Parameter | Value |
|---|---|
| Analog Bandwidth (-3 dB) | 100 MHz |
| Number of Input Channels | 2 |
| Calculated Rise Time | 3.5 ns |
| Input Impedance | 1 MΩ || ~13 pF |
| Input Coupling | AC, DC, GND |
| Input Sensitivity Range | 1 mV/div to 5 V/div |
| Vertical Resolution | 8 bits |
| Maximum Input Voltage | 400 V (DC + peak AC) |
| DC Gain Accuracy (2 mV/div to 5 V/div) | ±2% |
| DC Gain Accuracy (1 mV/div) | ±3% |
| Offset Range (1 mV/div to 100 mV/div) | ±2 V |
| Offset Range (101 mV/div to 5 V/div) | ±40 V |
Horizontal System
| Parameter | Value |
|---|---|
| Timebase Range | 2 ns/div to 50 s/div |
| Timebase Accuracy | ±0.01% |
| Horizontal Modes | Main, Delayed, Roll, XY |
| Post-trigger Delay Range | 1,000,000 divisions or 50 s |
| Delay Jitter | 10 ppm |
| Pre-trigger Delay Range | 1,000,000 divisions or 5 s |
Acquisition System
| Parameter | Value |
|---|---|
| Maximum Real-Time Sample Rate | 200 MSa/s per channel |
| Maximum Record Length | 1 MB per channel |
| Acquisition Technology | MegaZoom |
| Glitch Capture Capability | Glitches as narrow as 5 ns |
| Peak Detect Minimum Pulse Width | 5 ns |
| Maximum Update Rate | Up to 3,000,000 points/s |
Trigger System
| Parameter | Value |
|---|---|
| Trigger Sources | Channel 1, Channel 2, External, Line |
| Trigger Modes | Auto, Auto Level, Normal, Single |
| Standard Trigger Types | Edge, Glitch |
| Glitch Trigger Width Range | 8 ns to 8.38 s |
| External Trigger Input Impedance | 1 MΩ || ~13 pF |
| External Trigger Max Input Voltage | 400 V (DC + peak AC) |
| Trigger Coupling | AC, DC, LF Reject, HF Reject, Noise Reject |
| Trigger Level Range (Internal) | ±12 divisions from center of screen |
| Trigger Holdoff Range | 200 ns to 13 s |
| Internal Trigger Sensitivity | DC to 25 MHz: 0.35 div or 3.5 mV; 25 MHz to 100 MHz: 1.0 div or 10 mV |
| External Trigger Sensitivity | DC to 25 MHz: 40 mV; 25 MHz to 100 MHz: 80 mV |
Waveform Measurements and Analysis
| Parameter | Value |
|---|---|
| Automatic Voltage Measurements | Vp-p, Vmax, Vmin, Vtop, Vbase, Vavg, Vrms |
| Automatic Time Measurements | Period, Frequency, Rise time, Fall time, +Width, -Width, Duty Cycle |
| Cursor Measurements | Voltage (V1, V2, dV) and Time (t1, t2, dt, 1/dt) |
| Waveform Math Operators | Channel 1 + Channel 2, Channel 1 - Channel 2 |
Storage Capabilities
| Parameter | Value |
|---|---|
| Setup Storage | 10 nonvolatile front-panel setups |
| Trace Memory Storage | 4 nonvolatile trace memories |
Display and User Interface
| Parameter | Value |
|---|---|
| Display Graticule | 8 x 10 divisions |
| Autoscale | Single-button automatic setup of active channels |
Environmental and Compliance
| Parameter | Value |
|---|---|
| Operating Altitude | Up to 4,600 m (15,000 ft) |
| Non-operating Altitude | Up to 15,240 m (50,000 ft) |
Vertical System
| Parameter | Value |
|---|---|
| Bandwidth Limit Filter | 20 MHz |
| Channel Isolation | >= 40 dB at 100 MHz |
| Common Mode Rejection | 20 dB at 50 MHz |
| Dynamic Range | ±8 div from screen center |
Environmental
| Parameter | Value |
|---|---|
| Operating Humidity | 95% RH at 40 °C |
| Vibration Limit | 0.38 mm p-p, 5 to 55 Hz, 3 axes, 15 minutes per axis |
| Shock Limit | 30 g, 1/2 sine, 11 ms duration, 3 shocks per axis |
Power
| Parameter | Value |
|---|---|
| Power Consumption | Maximum 220 VA |
Triggering
| Parameter | Value |
|---|---|
| External Trigger Level Range | ±18 V |
I/O & Expandability
| Parameter | Value |
|---|---|
| Supported Interface Modules | HP 54650A (GPIB), HP 54651A (RS-232), HP 54652B (RS-232/Parallel), HP 54657A (GPIB with Measurement/FFT), HP 54659B (RS-232/Parallel with Measurement/FFT) |
Compliance
| Parameter | Value |
|---|---|
| Safety Standards | Certified to CSA C22.2 No. 1010.1, Complies with EN 61010-1 / IEC 1010-1 |
| EMC Standards | Complies with CISPR 11 Class A, EN 50082-1 |
Maintenance
| Parameter | Value |
|---|---|
| Recommended Calibration Cycle | 1 year |
Technology
Digital Storage Oscilloscope (DSO)
Applications
Electronic Design and Troubleshooting, Mixed-Signal Analysis, Education