Signal Generators - Axiom Test Equipment

Generate pulses and signalSide
patterns
Text for device characterization
Series 3400
• Broad-purpose voltage pulse
and pattern generation
• Programmable pulse
parameters: amplitude, rise
time, fall time, pulse width, and
duty cycle
• Pulse and burst modes
for material and device
characterization
• Serial data pattern simulation
for functional characterization
tasks
Series 3400 Signal Generators are the ­latest additions to Keithley’s growing line of instrumentation
with pulse generation functions. They offer users extensive control over a wide variety of pulse
parameters, including pulse amplitude, rise time, fall time, width, and duty cycle via the instrument’s
flexible user interface or over the GPIB and USB interfaces. This operational flexibility makes Series
3400 instruments readily adaptable to the needs of a wide range of users, including nanotechnology
researchers, research and education organizations, and semiconductor and RF device design and
development departments. Built-in pattern generation capabilities simplify simulating serial data
­patterns when testing devices to characterize their performance while operating under sub-optimal
conditions.
Series 3400 instruments offer users important performance advantages over some of the best-selling
signal generators on the market, including:
• Clean transient response
• Choice of single- or dualchannel signal outputs
• Simpler user interface
• 1mHz–165MHz frequency
output range
The user interface for Series 3400 generators is designed to simplify configuring complex pulses
and patterns. By using intuitive parameter menu keys and context-sensitive soft menu keys, users
can ­navigate quickly to their desired parameter controls with just a few key presses, unlike competitive generators, which often have many levels of confusing sub-menus and shift-key operations. An
­industry-standard SCPI command set makes Series 3400 instruments code-compatible with the command set of other popular generators. This compatibility simplifies migrating existing applications
from older hardware to the Series 3400 by minimizing the need to rewrite existing program code,
which reduces the start-up time and costs associated with replacing older instrumentation.
• Independently adjustable rise
and fall times
• 3ns—1000s pulse width range
FUNCT/PULSE/ARB/PAT GENERATORS
Signal Generators
• Four operating modes: pulse,
burst, pattern, external width
• GPIB and USB interfaces
• 2U full-rack design
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• Easier integration into existing test and measurement systems
Single- and Dual-Channel Options
The Model 3401 is a single-channel signal generator. The Model 3402’s specifications are identical
to the Model 3401’s, with the addition of a second signal output channel, which is useful for applications that require sourcing multiple streams of pulses or patterns simultaneously. Both instruments
can source pulses at frequencies ranging from 1mHz to 165MHz with pulse amplitudes of up to ±10V
(with 50W source impedance) or ±20V (with 1kW source impedance). Pulse widths ranging from 3ns
to 1000s in length can be programmed with rise times as short as 2ns.
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Ordering Information
3401-F Single-Channel Signal
Generator
3401-R Single-Channel Signal
Generator with Rear
Panel Option
3402-F Dual-Channel Signal
Generator
3402-R Dual-Channel Signal
Generator with Rear
Panel Option
Signal Generators
Figure 1: Superior
pulse fidelity with precision edge ­control.
Accessories Supplied
CD-ROM Manual Package, Line
Cord, Rack Mount/Handle Kit
ACCESSORIES AVAILABLE
CABLES/ADAPTERS
7051-2
General Purpose BNC to BNC Cable (2 ft)
7007-1
Shielded GPIB Cable, 1m (3.3 ft)
7007-2
Shielded GPIB Cable, 2m (6.6 ft)
7051-2
General Purpose BNC to BNC Cable, 0.6m (2 ft)
7051-5
General Purpose BNC to BNC Cable, 1.5 (5 ft)
775550W Feed-Through Terminator
COMMUNICATION INTERFACES
KPCI-488LPA IEEE-488 Interface/Controller for the PCI Bus
KUSB-488B IEEE-488 USB-to-GPIB Interface Adapter
Services Available
3401-3Y-EW
1-year factory warranty extended to 3 years
from date of shipment
3402-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
C/3401-3Y-DATA 3 (Z540-1 compliant) calibrations within 3
years of purchase*
C/3402-3Y-DATA 3 (Z540-1 compliant) calibrations within 3
years of purchase*
*Not available in all countries
Application Flexibility
A number of built-in operating modes give Series 3400 Signal generators the power and flexibility
today’s test applications demand. These modes simplify programming and integrating Series 3400
instruments with other test hardware, such as oscilloscopes, Keithley’s Series 2600A and 2400
SourceMeter® instruments, low level instruments, and the Model 4200-SCS.
• Semiconductor Device Characterization—Users can configure all the key parameters, including
pulse width, rise time, and delay in pulse and burst mode to create the exact output desired.
• Memory Device Stress Testing—Channel addition can be used to add the Channel 1 and
Channel 2 outputs internally to create a complete Write/Erase cycle on a single output.
Generate pulses and signalSide
patterns
Text for device characterization
Series 3400
• Nanotechnology Research—Researchers get the flexibility they need to handle varying
application types.
• Functional Tests—By using the burst and pattern modes, clock and data signals can be simulated
to test the real-world performance of many types of devices.
Instrument Features
• Large, backlit LCD display: Makes it easy to configure the generator’s operation or confirm
parameter settings with a glance.
• Enter or adjust parameter values quickly: Use the cursor keys and either the numeric keypad
or control knob.
APPLICATION AreaS
• High speed serial communication
characterization
• Nanotechnology
• Materials characterization
• Semiconductor
- Charge pumping
- AC stress testing
• BNC output: One channel (Model 3401) or two channels (Model 3402).
• Enable the pulse output with a single key press.
• High speed Trigger and Strobe outputs: Coordinate the operation of external instruments, such
as oscilloscopes or other pulse generators, with the Model 3401/3402.
• High speed Clock and External Instrument inputs: Support tight integration with other pulse
generators to produce multiple pulse trains.
• Context-sensitive soft menu keys: Provide fast access to the commands in the sub-menus for
configuring the desired pulse or pattern parameters, without the need for confusing shift-keying
and cursor control.
• Memory testing
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FUNCT/PULSE/ARB/PAT GENERATORS
• Single-function keys: Provide instant access to the main parameter menus.
Generate pulses and Model
signalSide
patterns
specifications
Text for device characterization
Series 3400
Signal Generators
• Rear output option: Moves the BNC, Trigger,
and Strobe outputs and Clock and External
inputs from the instrument’s front panel
to the rear for greater convenience in rackmounted ­environments.
Specifications
• Reference Oscillator input and output:
Simplify coordinating multiple Series 3400
Signal generators with an external 10MHz
signal for PLL reference.
• Ports for GPIB and USB interfaces: Allow
controlling the instrument via an external
computer, rather than the front panel controls.
• Trigger Modes
– Continuous: Trigger circuitry is always
armed.
– Triggered: Trigger arming is edge sensitive,
requires a selected edge prior to allowing
trigger event.
– Gated: Trigger arming circuitry is level sensitive, always armed when selected level is
present.
• Pulse Period Source and Burst/Pattern
Period Source
– PLL oscillator
– VCO (triggerable oscillator)
– CLK IN
FUNCT/PULSE/ARB/PAT GENERATORS
• Amplitude Settings: High/Low level or
Amplitude/Offset are adjustable. Source impedance selectable, 50W or 1kW. Amplitudes
double for 1kW. Channels have independent
settings. Amplitudes may be set in either voltage or current units.
• Timing: Delay and duration are fully adjustable. Can also be programmed as duty cycle.
Period is adjustable and can also be set as frequency. In NRZ pattern mode, crossing point
is available instead of duration/duty cycle.
Delay and duration are independently adjustable for each channel. Period is a common
parameter.
Basic Modes of Operation
Timing and Trigger Parameters
The 340x Signal Generator may be set in one of four available
modes: Pulse, Pattern, Burst, and External Width.
Pulse Mode delivers a single pulse per trigger event to the
outputs. The pulse is programmable in delay and duration.
Burst Mode results in a “burst” of n pulses per trigger event,
with pulses configured similarly to single pulses in Pulse
mode.
Pattern Mode delivers a programmable pattern per trigger
event to the outputs. The pattern is programmable or may
be selected from a library of pre-configured patterns. The
pattern may be presented in either NRZ or RZ formats. In
NRZ mode, the pattern crossing point is programmable. In
RZ mode, the duration (duty cycle) of the pattern pulse is
programmable.
External Width Mode makes the pulse level follow the edges
of the Ext In input. A rising edge causes the output to go
high, while a falling edge causes the output to go low.
Frequency Range1: 1mHz to 165MHz.
Period: 6.06ns to 1000s.
Period Accuracy: PLL: ±0.01%. VCO: ±0.5% typical with selfcal, ±3% without self-calibration.
Period Resolution:PLL: 4 digits, 1ps best case.
VCO: 3.5 ­digits, 10ps best case.
Period Jitter, RMS: VCO: 0.015% + 20ps. PLL: 0.001% + 15ps.
Pulse Width2: 3.02ns to (period – 3.02ns).
Width Accuracy:±0.5% ± 250ps typical with self-cal.
±3% ± 250ps without self-cal.
Delay3: 0 to (period – 3.02 ns).
Delay Accuracy:±0.5% ± 0.5ns typical with self-cal.
±3% ± 0.5ns without self-cal.
Delay and Width Resolution: 3.5 digits, 20ps best case.
Delay and Width Jitter, RMS: 0.01% + 15ps.
Fixed Delay4: 22ns.
Pulse/Level Parameters
Pulse Amplitude1:100mV to +10V, 50 into 50.
200mV to +20V, 1k into 50.
Level Window2: –10V to +10V, 50 into 50.
–20V to +20V, 1k into 50.
Amplitude Accuracy3: ±(0.5% amplitude + 30mV).
Offset Accuracy4: ±100mV
Output Resolution:10mV, 50 into 50
20mV, 1k into 50
Overshoot/Pre-shoot/Ringing5: ±5% ±20mV.
Source Impedance6: 50 or 1k, selectable.
Short Circuit Current7: ±400mA.
Notes
1.
2.
3.
4.
5.
6.
7.
Amplitude may be set in either voltage or current units.
Level may be set in either voltage or current units.
50 into 50.
50 into 50.
±1% at 10V p-p typical. ±2% at 5V p-p typical.
±1% typical.
±800mA in Channel Add Mode.
Rise/Fall Parameters
Rise/Fall Time: <2.5ns to 200ms, adjustable.
Minimum Rise/Fall Time1: 2.5ns maximum at 10V p-p.
2.3ns typical at 5V p-p. 2.1ns typical at 2V p-p.
Rise/Fall Time Accuracy: ±10% ±200ps.
Rise/Fall Ranges: 2ns–20ns, 10ns–200ns, 100ns–2µs,
1µs–20µs, 10µs–200µs, 100µs–2ms, 1ms–20ms, 10ms–
200ms.
Notes
1. 10% to 90%, 50 source and load, at 25°C. Higher for 1k source impe­
dance, rising and falling edges independent within selected ranges.
CLK IN and EXT IN Parameters
Burst Mode Parameters
Input Impedance: 50 or 10k.
Threshold: –3V to +3V.
Maximum Input Voltage: ±6V.
Coupling: DC.
Number of pulses: 2–65,536.
Pattern Mode Parameters
Pattern:
Data Pattern Length: 2–16,384 bits. Pattern for each channel is independent, must be same length.
PRBS: 2n–1 with n = 5–14.
Data Formats: NRZ, RZ.
TRIG OUT and STROBE OUT
Parameters
Output Impedance: 50.
Levels: TTL (0V/2.4V).
Maximum External Voltage: –2V to 5V.
Coupling: DC.
REF OSC IN and REF OSC OUT
Parameters
• Transition Time: Leading and trailing edges
can be independently adjusted for each
­channel.
Impedance: 50, AC coupled.
Ref Osc In Signal: 10MHz, 0dBm typical, 20dBm max.
Output Amplitude: 10MHz, 1V p-p typical.
• Pattern: PRBS (2n-1 with n = 5–14), user
programmable, or preset patterns can be
specified. NRZ or RZ formats. User and preset
patterns are two bits to 16 kbits in length.
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Notes
1. Range reduced for 1k source impedance.
2. At 50% level. Specified at fastest rise/fall and for amplitudes <5V p-p.
3. Delay is measured from Trigger Out to Pulse Out, and is the sum of the
user defined Delay plus the Fixed Delay.
4.Nominal.
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General
Interfaces: The 340x Signal Generator can be
controlled via the front panel GUI interface, a GPIB
interface, or a USB interface. IEEE 488.2, SCPI
compliant.
Power: 100V to 240V, single phase, 50/60Hz; universal
voltage input; 165VA max.
EMC: Conforms to European Union Directive 89/336/EEC,
EN 61010-1.
SAFETY: Conforms to European Directive 73/23/EEC,
EN 61010-1.
Operating Temperature: 0° to 50°C.
Operating Humidity: 80% R.H. up to 35°C. De-rate 3%
R.H./°C, 35° to 50°C.
Storage Temperature: –25°C to 65°C.
Altitude: Maximum 2000 meters above sea level.
Environmental: For indoor use only.
Dimensions, Weight: 439mm wide 87mm high
393mm deep (17.3 in. 3.4 in. 15.5 in.). Net weight
6.80kg (15.0 lbs.).
Signal Generators
Additional Information
Inputs/Outputs
Pulse Period Source
OUTPUT1: Channel 1 signal output, front or rear (optional)
panel.
OUTPUT2: Channel 2 signal output (optional), front or rear
(optional) panel.
TRIG OUT: Generates trigger pulse on each period, front panel.
STROBE OUT: Programmable NRZ in pattern mode, marks
burst width in burst mode, front panel.
CLK IN: Accepts external CLK, front panel.
EXT IN: Accepts external signal for arming, front panel.
REF OSC IN: Accepts external 10MHz signal for PLL reference,
back panel.
REF OSC OUT: Generates 10MHz signal phase locked to PLL,
back panel.
A period of pulses in continuous mode, or period of pulses
within a burst or pattern in burst or pattern modes.
• PLL oscillator.
• VCO (triggerable oscillator).
• CLK IN.
Arming Source
Sets period of entire burst/pattern in burst/pattern mode.
• EXT IN.
• PLL oscillator (in started mode, if not used as pulse period
source).
• MANUAL (in started mode).
Trigger Modes
Continuous: Trigger circuitry is always armed.
Triggered: Trigger arming is edge sensitive, needs selected
edge prior to allowing trigger event.
Gated: Trigger arming circuitry is level sensitive, always armed
when selected level is present.
Generate pulses and Model
signalSide
patterns
specifications
Text for device characterization
Series 3400
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FUNCT/PULSE/ARB/PAT GENERATORS
Figure 2. Model 3402-R, Dual-Channel with Rear Outputs
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