Sometimes it takes just a simple measurement to see what's going on inside in your design, or when performing fault analysis. Microprocessors are one of the most important aspects of electronics design, development, calibration, and repair today. They are control items in almost every facet of our life, testing the condition of signals, power, and logic. Global Specialties®' line of diagnostic test instruments makes taking accurate diagnostic measurements affordable, while not sacrificing quality while. Global's logic probes allow for fast and easy pulse and gate measurements. Their 32 channel logic analyzer gives accurate results when taking critical microprocessor timing measurements.

Global has a long history of providing accurate diagnostic instruments that ensure critical measurements are delivered with precision, and now the line has grown to include devices that analyze AC power conditions.

Quicklinks: GA 320S | LP-1/LP-3 | 1521 | 1522 | 2020A

Model GA 320S
32-Channel Logic Analyzer

Features:

3-year warranty
32 data channels from DC up to 25 MHz
RS-232 standard interface
100MHz maximum acquisition speed
5ns glitch capture
4-step mult-level trigger sequencing with delay and restart
Multiple clocks for complex synchronous capture
Non-volatile data and set-up memories

Specifications:

Signal Inputs:
- Number of Data Channels: 32
- Number of Clock Inputs: 3 independent clock inputs active edge can be independently selected for each to be either positive, negative, or off
- Number of Clock Qualifiers: 3, 1 for each clock. Selectable to be active high, low, or neither
- Input Characteristics: Determined by the type of pod fitted. All data and clock inputs on the standard AP01 (25MHz) pod are fixed TTL threshold with an impedance of typically 100kohm/10pF. AP03 and AP04 are high-speed (100MHz) TTL threshold data and clock pods respectively, and AP03/AP04 are versions with the threshold variable from -2.5V to +7.3V in 100mV steps. Input impedance for all high-speed pods is typically 100kohm/6pF
- Activity Indicator: Shows whether the channel input is high, low, or switching
Memory Organization:
- Data Memory Size: 32 bits x 2k
- Reference Memory Size: 32 bits x 2k
- Non-Volatile Memory: Non-volatile storage for 10 acquisitions and 10 set-ups. Data retention by lithium cell; typical life 5 years
External Clock:
- Frequency Range: DC to 25MHz
- Minimum clock PulseWidth: 20ns
- Organization: 3 clocks, individually qualified and OR'ed together
- Set-up and Hold Times: 18ns set-up. 0ns hold for both data and clock qualifiers
Internal Clock:
- Clock Rate: Selectable 40ns to 100ms (25MHz to 10Hz) in a 124 sequence with all pods. 10ns (100MHz) with high-speed pods in high-speed mode
Triggering:
- Trigger Sequencer Words: 4 words of up to 32 bits
- Trigger Sequencer Terms: The actual trigger and restart terms search for in a sequencer step each consists of up to 4 trigger sequencer words OR'ed together
- Trigger Sequencer Steps: Each of up to 4 sequencer steps consists of a search for the trigger and restart terms specified in that step. Each step has an event count of 1, 50, 128 occurrences of the trigger term
- Trigger Position: Selectable to be from 0 to 5k clocks before the start, center, or end of store, in 1k steps
- Trigger Output: TTL level signal at rear panel BNC
Glotch: (Only available when high-speed pods are fitted)
- Number of Channels: 16 (8 per pod)
- Minimum Detectable Pulse: 5ns
- Glitch Triggering: A glitch word can be specified which can be OR'ed with any trigger word within a trigger term
Timing Display:
- Number of Channels: Any 6 channels may be displayed; channels may be repeated
- Channel Labeling: A user-defined name can be given for each group of channels and each channel will be uniquely numbered within the group
- Number of Samples: A maximum of 1152 samples can be shown in the display window, with expansions of x2, x4, x8, and x16. The window can be scrolled throughout the store and a window indicator shows the position of the window within the store
- Cursors: A moveable cursor and a moveable market, with direct readout of absolute and relative store positions and the data values at those locations. The marker will default to the trigger location following each acquisition
- Glitch: Glitches are shown by markers on the appropriate data channels
- Search: A search can be made for any word; the search word may include glitches on the glitch channels
List Display:
- Channel Groups: Up to 32 channels can be grouped together under a single character lable and given the corresponding name defined on the timing display. Up to 16 groups can be specified
- Display Format: Binary, Octal, Hex, Decimal or ASCII individually selectable for each channel group. Each group is listed underneath its label or name
- Cursors: A moveable cursor and a fixed marker are provided
- Search and Compare: Differences beteween data and reference can be shown and a search made for any word and any difference. Automatic comparisons between data and reference memories can be performed on a user-specified area of the data and acquisitions stopped on an equality or inequality
- Print Output: Any specified portion of the list display can be printed out via the RS-232 interface to a serial or parallel (with PC02 serial to parallel converter) printer
System Data:
- Display: 240 x 64 pixel graphic LCD giving 40 characters x 8 lines
- Interface: Addressable RS-232 interface, for remote control and data transfer
- Audible Warning Signal: Buzzer
General:
- Input Voltage: 115V or 230V nominal, 50/60Hz, adjustable internally; operating range +/-14%of nominal
- Operating Range:5 degrees C to 40 degrees C, 20% to 80% RH
- Storage Range: -20 degrees C to 60 degrees C, 5% to 95% RH
- Size: 10.2" (W) x 3.4" (H) x 9.2" (D) excluding handle and feet
- Weight: