Keysight (Agilent) 85309A Data Sheet

FREQUENCY, FUNCTION & WAVEFORM SYNTHESIZERS

Universal Source

HP 3245A

Precision DC Outputs with 6 1/2 Digits of Resolution

Synthesized AC With 0.4% Amplitude Accuracy
Sine, Square, Triangle, and ARB to 1 MHz
Ramp and Pulse to 100 KHz
Floating Outputs

Model 3245A

Non volatile storage of up to 14
Second Channel Output Available

Continuous Frequency Changes

Optional Software for Waveform Modification
Downloadable Subroutines

Description

The HP 3245A Universal Source offers a unique mix of precision

DC capabilities with versatile AC performance, including arbitrary
waveform generation. This versatility can be put to advantage on the
bench, where the HP 3245A may well be all the source you will ever
need. The HP 3245A can also fit into your Computer Aided Test Sys­tem, providing the capabilities of AC, DC, and second channel op­tions in a single 3.5" tall instrument.

Precision DC

The HP 3245A provides precision DC outputs of both voltage and
current. In the high-resolution mode, you get 24-bit resolution with
60 ppm, 90-day accuracy. The low-resolution mode provides 12-bit
resolution with 100 usec settling times. This type of precision means
you can use the HP 3245A to test A/D converters, Voltage to Fre­quency converters, VCO's, transducers, and anywhere that a highly
accurate DC voltage or current is required. There are two output
ranges in the high resolution mode; ±1 volt and ±10 volts. In the low
resolution mode, there are 7 ranges. In current, there are four ranges
of output, from 0.1 mA to 100 mA. Output impedance is selectable as
either zero ohms or 50 ohms.

Accurate AC

The HP 3245A can generate AC voltage outputs, including sine,
triangle, and square waves, at frequencies of up to 1 MHz. Variable
duty-cycle pulse and ramp outputs can be generated at up to 100 kHz.
In the AC mode, the HP 3245A can make phase continuous frequen­cy changes "on-the-fly". AH AC waveforms are synthesized, and have

0.001 Hz resolution and 50 ppm frequency accuracy. 90-day ampli­tude accuracy for Sine, Ramp, and ARB is 0.35% of output + 0.41%
of range.

Second Channel Option

The addition of a second channel allows for the generation of two
waveforms, either independent, or phase related to one another. The
second channel output can be phase synchronized to the first channel,
or to an external input. Such capabilities are especially useful if you
are doing modem testing, tone sequence generation, DTMF genera­tion, or FSK generation, or anywhere where two outputs are required.

Arbitrary Waveform

The HP 3245A offers arbitrary waveform operation at a full 1
MHz bandwidth. This is acomplished by a sampling technique
whereby the values loaded into RAM are sampled at approximately

4.3 MHz and then run through a 1.25 MHz 5-pole low-pass filter.
This allows full 1 MHz rep rate while maintaining 0.001 Hz resolu­tion at any frequency. The HP 3245A can also store multiple arrays
that can be accessed for arbitrary waveform generation. Array depth
is 2048 bytes.

Waveform Generation Software

A powerful software package, useful for creating specialized
waveforms, is available as an option to the HP 3245A. This menu
driven software facilitates the capture of a waveform using a seperate
hardware digitizer, such as the HP 3458A. The waveform can then be
modified, if desired. The waveform can then be played back via the
HP 3245A. The use of a graphics tablet makes the modifying of
waveforms especially easy. The software also contains a library of
standard waveforms which can be used as is, or mixed with other
waveforms to generate complex outputs.

System Operation

The HP 3245A includes features that make it especially powerful
in system applications. Because it contains many BASIC-like con­structs, such as IF .. THEN and FOR .. NEXT, it is possible to have
the HP 3245A do much of the work that normally would require in­tervention from the host computer. Now, subroutines can be
downloaded to the HP 3245A, which can then run stand-alone, mini­mizing host computer interaction. Built in math capabilities add to
the power of the HP 3245A. Electronic calibration is both easy and
accurate, and does not require that the instrument be removed from a
rack or opened up to perform a calibration.

All the above features combine to make the HP 3245A a truly uni­versal source, combining precision DC outputs, accurate AC
waveforms, and arbitrary waveform capabilities, all in a single instru­ment.

DC

High Resolution Mode

Low Resolution Mode

Current Compliance: 100 mA on all ranges

Settling Time (Delay 0):

High Resolution Mode:

.l%of step:20mSEC
.001% of step:40mSEC

(1 SEC if function changed)

Low Resolution Mode:

.1% of step (0 Mode): 100 µSEC

.5% of step (50 Mode): 5 µSEC

(50 Mode): 25 µSEC

Overshoot:

High Resolution Mode: <5% of step + .15% of range

Low Resolution Mode: <30% of step + 2% of range

90 DAY: Tcal ±5C. After one hour warm-up.

AC Volts Output Characteristics (sine, square, ramp, arbitra­ry)

Frequency Range:

0 to 1 MHz for sine, arbitrary and square (at 50% duty cycle)
0 to 100 kHz for ramp

0 to 100 kHz for square w/Duty cycle not equal to 50%

Amplitude and/or Offset Resolution:

Amplitude can be set from 10% to 100% of range.

AC Amplitude Accuracy (Sine, Ramp, Arbitrary)

24 Hour: Tcal ± 1C 0.16% of output + .25% of range

90 Day: Tcal ±5C 0.29% of output + .36% of range

Sinewave

Characteristics

(50

Mode):________

DC (< 10 Hz noise): ± (% of programmed output
+ volts), impedance mode, > 1Mohm load. Tcal is the temperature of
calibration from 18°C to 28°C. One hour warm-up.

24 Hour: Tcal ±1C

90 DAY: Tcal ±5° C

DC

Resolution

Squarewave Characteristics (50 Mode):

risetime: <250 nSEC, 10% to 90%

settling time: < 1 µSEC to 1% of amplitude

overshoot: < 5% of peak-to-peak amplitude
duty cycle range: 5% to 95%, 0 to 100 kHz

50% above 100 kHz

duty cycle accuracy: ±(0.8% of period + 120nSEC)

Frequency Resolution: .001 Hz

Frequency Accuracy: ±50 ppm, 18 to 28 C

Frequency Temperature Coefficient: ±1 ppm/C

Phase Offset:

Range: —360 to +360 degrees

Resolution: < .001 degrees

Ramp Linearity to 1 kHz (50 Mode):

.3% of p-p value measured @ 50% duty cycle from 10% to 90%
point

Ramp Duty Cycle Range: 5% to 95% with < .1% resolution)

Ordering Information Price

HP 3245A Universal Source $4200

Option 001 Second Channel Output $2500

Option 005 Waveform Generation Software $400

Option 907 Front Handle Kit $51
Option 908 Rack Flange Kit $31

Option 909 Rack flange and Handle Combination Kit $73

Option W30 Extended Warranty $126