User`s guide

General Information - 2
21
Description
The Agilent 66111A is a high performance dc power source that provides peak current sourcing and
rapid, basic measurements in a compact, half-rack box. It is designed to simplify the testing of digital
wireless communications products. Excellent voltage transient response characteristics prevent test
interruptions due to triggering of low voltage phone shutdown. Fast command processing and voltage
change response times maximize throughput. Measurement capability provides rapid dc voltage and
current measurements. The 15 volt source and 5A peak current capability provides compatibility with a
number of communications standards, including: GSM, CDMA, TDMA, PCS, DECT, TERA, PHS,
NADC, PHS, and others.
The Agilent 66311B is a high performance dc power source that provides all of the capabilities of the
Agilent 66111A plus fast dynamic measurement and analysis of voltage and current waveforms. Dynamic
measurement and analysis of current waveforms combined with precision current measurement let you
characterize cellular phone current requirements under all operating conditions.
Table 2-3. Agilent 66111A/66311B Differences
Item Agilent 66111A Agilent 66311B
Dynamic Measurement capability not available rms, high, low,
max, min
Low range current measurement accuracy not available
0.1% +2.5 µA
+ High range current measurement accuracy 0.2% +9 mA 0.2% +0.5 mA
− High range current measurement accuracy
0.2% +9 mA 0.2% +1.1 mA
Capabilities
♦ Output Voltage and Current control with 12-bit programming resolution.
3 ampere current source capability (up to 5 amperes for 7 milliseconds)
♦ Extensive measurement capability:
dc voltage and current.
rms and peak voltage and current.
Current measurement capability up to approximately 7.0 amperes
16-bit measurement resolution (low range has resolution better than 1 microampere).
Triggered acquisition of digitized current and voltage waveforms (Agilent 66311B only)
♦ Front panel control with 14-character vacuum fluorescent display, keypad, and rotary control for
voltage and current settings.
♦ Built-in GPIB and RS-232 interface programming with SCPI command language.
♦ Non-volatile state storage and recall with SCPI command language.
♦ Over-voltage, over-current, over-temperature, and RI/DFI protection features.
♦ Extensive selftest, status reporting, and software calibration.