2308 KEITHLEY, 2308 Datasheet - Page 2

• Manufacturer Part Number: 2308
• Description: 58T8428
• Manufacturer: KEITHLEY

Specifications of 2308

• No. Of Outputs: 2
• Output Voltage: 15V
• Output Voltage 2: 15V
• Output Current: 5A
• Output Current 2: 5A
• Load Regulation: 0.01%
• Length: 411mm
• Width: 213mm
• Height: 89mm
• Weight: 3.2kg
• Power Supply Output Type: Variable
• Power Rating: 50W

2306-DISP
SC-182
IEEE-488 INTERFACE CONTROLLER CARDS
KPCI-488LPA IEEE-488.2 Interface Board for the PCI bus
KUSB-488B IEEE-488.2 USB-to-GPIB Interface Adapter for USB
IEEE-488 INTERFACE CABLES
7007-05 Double Shielded Premium IEEE-488 Cable, 0.5m (1.6ft)
7007-1
7007-2
7007-3
7007-4 Double Shielded Premium IEEE-488 Cable, 4m (13ft)
RACK MOUNT KITS
4288-1
4288-2
2308-3Y-EW
2308-3Y-17025 3 (ISO-17025 Accredited) Calibrations within 3
2308-3y-DATA 3 (ANSI-Z540-1 Compliant) Calibrations within 3
Model 2308 vs. Conventional
Power Supplies
Large load changes will cause a large instan-
taneous drop in a conventional power sup-
ply’s voltage output. If the supply’s recovery
time is long, the DUT will turn off when the
supply voltage falls below the DUT’s low
battery turn-off threshold—producing a
false failure. Even if the DUT does not turn
off, the drop-off in input power prevents
the output (RF or a power pulse) from
meeting its specification—a specification
failure. Furthermore, the conventional
power supply may have an excessively large
overshoot when the DUT’s load current
transitions from its operating load back to
its standby load. The magnitude of the tran-
sient overshoot voltage could even be large
enough to exceed the maximum safe input
voltage, either rendering the device inoper-
able or damaging some components—a
device failure or a field failure.
Ordering Information
2308
Accessories Supplied
CD with documentation,
output connectors mating
terminal (part no. CS-846)
1.888.KEITHLEY
2308
Double Shielded Premium IEEE-488 Cable, 1m (3.2ft)
Double Shielded Premium IEEE-488 Cable, 2m (6.5ft)
Double Shielded Premium IEEE-488 Cable, 3m (10ft)
ACCESSORIES AVAILABLE
w w w.keithley.com
SERVICES AVAILABLE
Remote Display
Low Inductance Coaxial Cable
Port with built-in 2m (6.6ft) cable
Single Fixed Rack Mount Kit
Dual Fixed Rack Mount Kit
Portable Device Battery/
Charger Simulator
1-Year Factory Warranty Extended to 3 Years for
the Model 2308
Years of Purchase
Years of Purchase
(U.S. only)
Compare the response of a conventional power supply (left) with the response of a Model
2308 (right) when both are powering a device operating on the EDGE mobile phone standard.
Note how the conventional power supply distorts the load current and cannot maintain a
stable source voltage, which in turn distorts the RF output signal.
Reduce test costs and increase
throughput with high speed
command structure
To minimize production test times while still
giving you all the information you need to char-
acterize your devices fully, the Model 2308 is
designed with a command structure optimized
for speed, with voltage step times as short as
6ms and DC load current measurements in just
22ms. Commands that combine range changing
and current measurement let you acquire the
command, make the measurement, and transfer
the data in as little as 30ms. In addition, special
operating modes, such as the pulse current step
Portable Device Battery/Charger Simulator
Your DC source leads are a transmission line when your
portable device operates in a narrow pulsed mode.
Under pulsed operating conditions, your load circuit is an L-C-R network and that load impe-
dance can cause problems for your power supply. Keithley’s fast transient power supplies are
designed to maintain a stable voltage under difficult, narrow pulse, loading conditions and to
maintain the output voltage, even with long lengths of wire between the power supply and the
DUT. The design of your DC sourcing test circuit requires just as much effort as your AC or RF
test circuits. Using a fast transient response, battery simulating power supply needs to be a key
part of your DC test circuit design.
The DC source leads become a transmission line during dynamic load swings.
(500mA/
(500mV/
div)
div)
V
I
Conventional Power Supply
Power Source
Time
A
G R E A T E R
100µs/div
M E A S U R E
(500mA/
(500mV/
Source Leads
Sense Leads
mode, allow taking a number of measurements
on a complex load current waveform with a
single command.
Characterize load currents for
power consumption verification
Characterizing the battery life of portable
devices demands the ability to measure complex
current waveforms over a wide dynamic range.
The Model 2308 offers a far broader range of
capabilities than conventional power supplies for
measuring low current levels, peak pulse current
levels, long-period load current waveforms, and
multi-level current waveforms. A choice of four
div)
div)
V
I
O F
dI
dt
C O N F I D E N C E
Load Current
Time
Model 2308
100µs/div
DUT