Agilent U2761A Data Sheet

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Agilent

U2761A USB Modular Function/Arbitrary Waveform Generator

Data Sheet

Features

Overview

20 MHz Sine and Square • waveforms

Sine, Square, Ramp, Triangle, • Pulse and DC waveforms

14-bit, 50 MSa/s, 64 k-points • Arbitrary waveforms

AM, FM, PM, ASK, FSK, and • PSK modulation types

40 mVpp to 5 Vpp amplitude • range (into 50 ohm load)

Pulse generation•

Easy-to-use bundled software•

Arbitrary waveform editor•

Command logger function•

Hi-Speed 2.0, USBTMC 488.2 • standards

The Agilent U2761A is a 20 MHz USB modular function generator with Arbitrary waveform and pulse generation capability. It can operate as a standalone or modular unit when used with the U2781A USB modular instrument chassis.

Various features of the U2761A

Latest DDS technology adoption for more stable and accurate • output signal Easy-to-use arbitrary waveform editor for easy customization of • waveform generation Built-in modulation capability eliminates the need for a separate • modulation source Pulse generation up to 5 MHz with variable period, pulse width, and • amplitude that are ideal for wide variety of applications

Wide range of Application Development Environment (ADE) • compatibility Low start-up cost with standalone capability • Flexibility in expanding your application when using •

it as modular unit with the U2761A

Command logger function offered in the• bundled software allows easy command conversion into VEE programs

tandalone capability our application when using

he U2761 n offered in the

easy command

rams

Direct digital waveform

The U2761A adopts the latest direct digital synthesis (DDS) technology that digitally creates arbitrary waveforms and frequencies from a single and ﬁ xed frequency source. DDS offers the precision of digitally controlled logic—reducing the complexity of the generator while increasing the stability. Thus, allowing you to have

a stable, accurate output signal for clean, low distortion sine waves and square waves with fast rise and fall time up to 20 MHz and linear ramp waves up to 200 kHz.

Arbitrary waveform editor

With every purchase of the U2761A, it is bundled with an easy-to-use application software, the Agilent Measurement Manager. This application allows customization of waveforms generation.

Pulse generation

The U2761A can generate pulses from 500 μHz to 5 MHz. With variable period, pulse width, and amplitude parameters, the U2761A is ideally suited to a wide variety of applications

requiring ﬂ exible pulse width signals.

Internal modulation

Internal AM, FM, PM, ASK, FSK, and PSK modulation makes it easy to modulate waveforms without the need for a separate modulation source. Linear and logarithmic sweeps are also built in, with sweep rates selectable from 1 ms to 500 s.

Quick and easy to begin with

The USB 2.0 interface provides easy connectivity and setup that allows automatic detection of the U2761A. With quick and easy USB connectivity, the U2761A is ideal for academic and testing environment. The USBTMC

488.2 standard makes the U2761A compatible with any system that comes with USB ports.

Flexible standalone or modular capability

The U2761A is uniquely designed with ﬂ exibility to function standalone or as a modular unit. The standalone PC-based unit allows you to have low start-up cost.

ADE compatibility

The U2761A is compatible with a wide range of ADEs. This minimizes development time because developers can program directly using the SCPI commands.

Listed below are the popular development environments and tools that the U2761A is compatible with:

• Agilent VEE and Agilent T&M Toolkit

• Microsoft® Visual Studio .NET, C/C++ and Visual Basic 6

• LabView®

• MATLAB®

Easy-to-use AMM offers command logger function

Better yet, Agilent Measurement Manager application software provides a quick and easy means to conﬁ gure and control the device. This enhances productivity because it allows users to start performing measurement promptly without needing to write any programming codes.

The Agilent Measurement Manager also comes with a command logger function that lets you capture commands that can be easily converted to VEE programs for VEE users.

Product Outlook and Dimensions

Front View

Rear View

41.00 mm

Standard Shipped Item

12 V, 2 A AC/DC Adaptor• Power Cord• USB Standard-A to Mini-B Interface Cable• L-Mount Kit (used with modular instrument chassis)• Agilent Automation-Ready CD (contains the Agilent IO Libraries Suite)• Agilent USB Modular Products Quick Start Guide• Agilent USB Modular Products Reference CD-ROM• Agilent Measurement Manager Quick Reference Card•

Certiﬁ cate of Calibration•

Top View

180.00 mm

15.00 mm

117.00mm

Optional Accessories

1.5 m BNC Coax Cable• USB Secure Cable•

System Requirements

PROCESSOR

1.6 GHz Pentium® IV or higher

OPERATING SYSTEM

Windows• ® XP Professional or Home Edition (Service Pack 1 or later), or Windows 2000 Professional (Service Pack 4 or later)•

BROWSER

Microsoft® Internet Explorer 5.01 or higher

AVAILABLE RAM

512 MB or higher recommended

HARD DISK SPACE

1 GB

VIDEO

Super VGA 800×600 (1024×768 recommended)

PREREQUISITES

Agilent IO Libraries 14.2 or higher (version 15.0• Agilent T&M Toolkit 2.1 Runtime version 2.1•

Agilent T&M Toolkit Redistributable Package 2.1 patch• Microsoft .NET Framework version 1.1 and 2.0•

1 Available in Agilent Automation-Ready CD. 2 Bundled with Agilent Measurement Manager application software installer.

recommended)

Product Characteristics and General Speciﬁ cation

REMOTE INTERFACE

Hi-Speed USB 2.0• USBTMC 488.2 Class Device•

POWER CONSUMPTION

+12 VDC, 2 A•

Isolated ELV power source•

OPERATING ENVIRONMENT

Operating temperature from 0 °C to 50 °C• Operating humidity at 20% to 85% RH (non-condensing)• Altitude up to 2,000 meters • Pollution degree 2• For indoor use only•

STORAGE COMPLIANCE

Storage temperature from –20 °C to 70 °C• Storage humidity at 5% to 90% RH (non-condensing)•

SAFETY COMPLIANCE

Certiﬁ ed with:

IEC 61010-1:2001/ EN61010-1:2001 (2nd Edition)• Canada : CAN/CSA-C22.2 No. 61010-1-04• USA: ANSI/UL 61010-1:2004•

EMC COMPLIANCE

IEC 61326-2002/ EN 61326:1997+A1:1998+A2:2001+A3:2003• Canada : ICES-001:2004• Australia/New Zealand: AS/NZS CISPR11:2004•

SHOCK & VIBRATION

Tested to IEC/EN 60068-2

IO CONNECTOR

BNC Connector

DIMENSION (WxDxH)

117.00 mm x 180.00 mm x 41.00 mm (with bumpers)•

105.00 mm x 175.00 mm x 25.00 mm (without bumpers )•

WEIGHT

528 g (with bumpers)• 476 g (without bumpers)•

WARRANTY

One year

Product Speciﬁ cations and Measurement Characteristics

WAVEFORMS

Standard Sine, Square, Ramp, Triangle, Pulse, DC

Built-in arbitrary Exponential Rise, Exponential Fall, Negative Ramp

WAVEFORM CHARACTERISTICS

SINE

Frequency range 1 μHz to 20 MHz (1 μHz resolution)

Amplitude ﬂ atness 1 (relative to 1 kHz)

Harmonic distortion

Total harmonic distortion

Spurious (Non-harmonic) output

Phase noise (10 kHz offset) –115 dBc/Hz

SQUARE

Frequency range 1 μHz to 20 MHz

Rise/Fall time <18 ns, 10 to 90% terminated load (50 Ω)

Overshoot <2%

Variable duty cycle 20% to 80% (up to 10 MHz)

Asymmetry (@ 50% duty) 1% of period + 5 ns

Jitter (RMS) >50 kHz = 1 ns + 100 ppm of period

RAMP, TRIANGLE

Frequency range 1 μHz to 200 kHz (1 μHz resolution)

Linearity <0.2% of peak output

Programmable Symmetry 0% to 100%

PULSE

Frequency range 500 μHz to 5 MHz (1 μHz resolution)

Pulse width (period ≤ 10 s) 40 ns minimum, 10 ns resolution

Overshoot <3%

Jitter (RMS) 300 ps + 0.1 ppm of period

ARBITRARY

Frequency range 1 μHz to 200 kHz (1 μHz resolution)

Waveform memory depth 64 kSa

Amplitude resolution 14 bits/sample (including sign)

Sampling rate 50 MSa/s

Minimum rise/fall time 35 ns

Linearity <0.2 % of peak output

Settling Time <250 ns to 0.5% of ﬁ nal value

Jitter (RMS) 10 ns + 30 ppm

<100 kHz 0.2 dB

100 kHz to 1 MHz 0.35 dB

1 MHz to 20 MHz 0.7 dB

Frequency range <1 Vpp ≥1 Vpp

DC to 20 kHz –70 dBc –60 dBc

20 kHz to 100 kHz –65 dBc –60 dBc

100 kHz to 1 MHz –50 dBc –45 dBc

1 MHz to 20 MHz –40 dBc –35 dBc

DC to 20 kHz 0.10%

DC to 1 MHz –65 dBc

1 MHz to 20 MHz –65 dBc + 6 dB/octave

(Typical)

(1 μHz resolution)

40% to 60% (up to 20 MHz)

≤50 kHz = 10 ns + 100 ppm of period

(Typical)

COMMON CHARACTERISTICS

AMPLITUDE

Range 40 mVpp to 5 Vpp (Into 50 Ω load)

80 mVpp to 10 Vpp (Into open circuit)

Accuracy (across 50 Ω load at 1 kHz)

Units Vpp, Vrms. dBm

Resolution 4 digits

DC OFFSET

Range (peak AC + DC) ± 2.5 V (Into 50 Ω load)

Accuracy (across 50 Ω load)

Amplitude Limit Amplitude + Offset limit to witthin ±2.5 V range across 50 Ω

MAIN OUTPUT

Impedance 50 Ω load (Typical)

Isolation At least 42 Vpk to earth

Protection Short-circuit protected, overload automatically disables main

INTERNAL FREQUENCY REFERENCE

Accuracy

EXTERNAL FREQUENCY REFERENCE

Input Lock range Amplitude level Impedance Lock time

Output Frequency Amplitude Level Impedance

Phase Offset Range Resolution Accuracy

±1% of setting ±5 mV (

±10 mV @ Hi-Z)

± 5 V (Into open circuit)

±2% of offset setting ±1% of amplitude ±5 mV (±10 mV @Hi-Z)

load or ±5 V across open circuit

output

± 8 ppm in 1 year

10 MHz ±170 Hz 500 mVpp to 5 Vpp 50 Ω

AC coupled

<2 s

10 MHz 632 mVpp (Typical) Return loss 10 dB (Typical) at 10 MHz

+360 ° to –360 °

0.01 ° 20 ns

TRIGGER CHARACTERISTICS

TRIGGER INPUT

Input Level TTL compatible

Slope Rising and Falling, Selectable

Pulse width >100 ns

Input impedence >10 k

Latency <500 ns

Jitter (RMS) 6 ns (3.5 ns for Pulse)

TRIGGER OUTPUT

Output Level TTL compatible into ≥1 kΩ

Pulse width >400 ns

Output impedance 50

Fanout 4 TTL

Rise time ≤20 ns

Ω, DC coupled

Ω (Typical)