The Keysight/Agilent E1420B is a high-performance, C-size, 1-slot, message-based VXI universal counter. Designed for automated test equipment (ATE) environments requiring high throughput, the E1420B supports a full suite of measurement functions including frequency, period, time interval, rise/fall time, and phase, alongside a high-speed shared RAM option.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | VXIbus (Message-Based) |
| Display | None (VXI module) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | VXIbus backplane powered |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | C-size, 1-slot VXI module |
| Weight | 2.2 kg |
Measurement Capabilities
| Parameter | Value |
|---|---|
| Frequency Range Channel A | DC to 200 MHz |
| Frequency Range Channel B | DC to 200 MHz |
| Measurement Functions | Frequency, Period, Time Interval, Totalize, Ratio, Rise/Fall Time, Pulse Width, Phase |
Resolution & Accuracy
| Parameter | Value |
|---|---|
| Single-Shot Time Interval Resolution | 2 ns |
| Averaging Time Interval Resolution | 200 ps |
Input Channel Characteristics
| Parameter | Value |
|---|---|
| Input Impedance (Channels A & B) | 1 MΩ or 50 Ω (selectable) |
| Input Attenuation (Channels A & B) | x1 or x10 |
| Input Coupling (Channels A & B) | AC or DC |
VXIbus Interface & System Specs
| Parameter | Value |
|---|---|
| VXI Device Type | Message Based |
| VXI Module Size | C-size |
| VXI Slot Requirements | 1-slot |
| Programming Language | SCPI |
| Shared RAM Option | Option 020 |
Performance
| Parameter | Value |
|---|---|
| Measurement Rate (Single Function) | Up to 60 measurements/s |
| Measurement Rate (Sequenced Functions) | Up to 40 measurements/s |
| Measurement Rate (with Shared RAM Option) | Up to 160 measurements/s |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 to +75 °C |
| Operating Altitude | Up to 4,600 m (15,000 ft) |
| Operating Humidity | 95% R.H. at 40 °C (non-condensing) |
Timebase
| Parameter | Value |
|---|---|
| Oven Timebase Stability (Option 010) | < 5 x 10^-10 per day aging rate after 24-hour warm-up |
| Internal Reference Frequency | 10 MHz |
| Standard Timebase Aging Rate | < 1 x 10^-7 per month |
| Option 010 Oven Timebase Aging Rate | < 5 x 10^-10 per day (after 24-hour warm-up) |
| Option 010 Oven Timebase Temperature Stability | < 7 x 10^-9 (0 to 50 °C) |
| Reference Clock Synchronization | Can lock to VXI backplane CLK10 reference |
Input Characteristics
| Parameter | Value |
|---|---|
| Trigger Level Range (Channels A & B) | -9.99 V to +9.99 V (1x attenuation), -99.9 V to +99.9 V (10x attenuation) |
| Trigger Level Resolution | 10 mV (1x), 100 mV (10x) |
| Trigger Level Accuracy | ±(20 mV + 0.5% of setting) (1x attenuation) |
| Low Pass Filter (Channels A & B) | 100 kHz, switchable |
| Input Sensitivity (Channels A & B) | 15 mV rms (10 Hz to 100 MHz), 45 mV rms (100 MHz to 200 MHz) |
| Maximum Input Voltage (Channels A & B) | 15 V rms (1x attenuation, < 5 kHz), 150 V rms (10x attenuation, < 5 kHz) |
| Minimum Pulse Width (Channels A & B) | 5 ns |
Channel C (Option 030)
| Parameter | Value |
|---|---|
| Option 030 Channel C Frequency Range | 90 MHz to 2.4 GHz |
| Option 030 Channel C Input Impedance | 50 Ω nominal |
| Option 030 Channel C Sensitivity | 15 mV rms (-23.5 dBm) 90 MHz to 2.0 GHz, 20 mV rms (-21 dBm) 2.0 GHz to 2.4 GHz |
| Option 030 Channel C Maximum Input | 5.5 V rms (+28 dBm) |
Power Requirements (VXI)
| Parameter | Value |
|---|---|
| +5 V VXI Current Load | 3.2 A |
| -5.2 V VXI Current Load | 0.5 A |
| -2 V VXI Current Load | 0.1 A |
| +12 V VXI Current Load | 0.08 A |
Programming & Interface
| Parameter | Value |
|---|---|
| SCPI Version Compliance | SCPI-1991.0 |
Technology
VXIbus
Applications
Automated Test Equipment (ATE), Frequency and Time Interval Measurement