Agilent Technologies DC140 Bedienungsanleitung PDF herunterladen (Seite 3)

Acqiris High-Speed Digitizers

The proprietary ADC chipsets in Agilent Technologies

Acqiris high-speed digitizers are designed for the speciﬁ c

purpose of optimizing high-speed ADC performance. The

analog front-end technology provides the signal condition-

ing, ampliﬁ cation, and interleaving functions essential to

achieving high-speed data acquisition at GS/s rates. The

digital data handling components provide vital clock and

synchronization signals, to capture and memorize acquired

data with maximum data throughput. Together, these ASICS

make low-power, high-ﬁ delity data acquisition much more

accessible and provide maximum data throughput to the

host PC or processor to reduce the time and cost of mea-

surement.

The Acqiris product line provides a range of high-speed

digitizer cards

with 8-, 10- and 12-bit resolution, wide

bandwidths, and large acquisition memory. These products,

in PCI, PXI, cPCI, and VME formats, are used in research

and in ATE and OEM applications in industries such as

biotechnology, semiconductors, aerospace, physics, and

astronomy.

Single-Slot High-Speed Data Acquisition

Agilent Acqiris high-speed PXI digitizers (U1061A) use

the latest SiGe (silicon-germanium) technology to provide

superior data conversion performance in single-slot PXI

3U modules. They can be plugged directly into any PXI or

CompactPCI crate and can be quickly integrated into any

system.

The DC140 version (Option U1061A-002) is the top of the

line. It offers a sampling rate of 1 GS/s on each channel,

1 GHz bandwidth, and 128 kSample/channel acquisition

memory (with an optional 8 MSample). In single channel

mode these values increase to 2 GS/s and 256 kSample of

acquisition memory (with an optional 16 MSample) as the

circuits are precisely interleaved.

As a cost effective solution, the DC135 (Option U1061A-001)

uses the same SiGe technology and overall architecture

as the DC140. It has dual-channel sampling rates up to

500 MS/s (1 GS/s in single-channel mode), 500 MHz

bandwidth, and 64 kSample/channel of memory (with an

optional 2 MSample).

The digitizers’ ultra-fast sampling rates and bandwidths

combine to allow the accurate capture of signals up to

1 GHz. Moreover, with long acquisition memories up to

16 MSample, it is possible to record complex signals over

long periods of time.

The digitizer is designed to perform outstanding cross-

channel timing measurements (I/Q, jitter, phase, propaga-

tion delay, etc.) thanks to the combination of synchronously

sampling ADCs, well matched front-end electronics, and a

precision time base (±2 ppm). The cards’ time-base circuit

clocks the ADCs of each channel at the same time. The

independent SiGe front-end circuitry ensures that timing

skew (between channels) is kept to ± 100 ps (typical).

Easily Integrated

In production test environments, the time taken to inte-

grate all the required test modules needs to be kept to a

minimum. In semiconductor production testing for example,

the addition of high speed functionalities in on-chip design,

such as Ethernet, Wi-Fi, and Bluetooth

, have led to a

growing requirement for high-speed data conversion tools.

It is important that the digitizer module chosen for this task

can be easily integrated into the existing component testing

system, minimizing down-time.

Agilent‘s high-speed Acqiris digitizers are supplied with

software drivers for Windows, Linux, LabVIEW RT and

VxWorks, and application code examples for MATLAB,

C/C++, VisualBasic, LabVIEW, and LabWindows/CVI.

These code examples provide digitizer setup and basic

acquisition functionality, and are easily modiﬁ ed, so that

the card can be quickly integrated into a measurement

system.

The ﬂ exibility of the driver means that, with minimum

software adjustments, any Acqiris digitizer can be swapped

out, replaced, or upgraded with the latest high-speed

Acqiris digitizer.

1) 500 MS/s, 1 GS/s, 2 GS/s, 4 GS/s and 8 GS/s high-speed digitizer cards

Bluetooth and the Bluetooth logos are trademarks owned by Bluetooth SIG, Inc.,

U.S.A. and licensed to Agilent Technologies, Inc.

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