Instructions

Operator’s Manual

Overview

Description

The AP033 is a wide band differential active probe. The probe features low noise, low input

capacitance, high common mode rejection, and FET-buffered inputs in the probe head. User

selectable attenuation and offset give the probe flexibility to measure a large range of signal

amplitudes. Plug-on attenuator and AC coupling accessories further extend the application

range. Interconnect accessories included allow connection to surface mount and through-

hole components with minimal signal degradation. The input receptacles in the probe head

are compatible with standard 0.025 in. (0.635 mm) square pins, providing a convenient low-

cost method of creating device characterization test fixtures.

The probe is powered directly from a Teledyne LeCroy oscilloscope through the ProBus®

interface. The ProBus interface also allows local control of the probe through the

oscilloscope user interface and remote control through the interface buses, (GPIB, RS-

232). The optional ADPPS power supply allows the AP033 to be used with other

instruments such as spectrum analyzers, network analyzers, and oscilloscopes without

ProBus interface.

Applications

The AP033 is ideal for acquiring high speed differential signals such as those found in disk

drive read channels, differential LAN, video, etc. It can also be used with spectrum

analyzers to acquire signals in some RF systems (for example, balanced IF mixers in hand

held cellular telephones). The high impedance characteristics of both inputs allow the

probe to be used as a FET probe to make single-ended measurements in digital systems

without introducing a ground loop, as a conventional FET probe would.

Standard Accessories

Hard Case

÷10 Plug-on Attenuator

Plug-on AC Coupler

Probe Connection Accessory Kit:

Flex Lead Set (1)

Mini Clip, 0.8 mm (3)

Mini Clip, 0.5 mm (2)

Ground Lead (1)

Offset Pins, Round (4)

Square Pin Header Strip (1)

Manual, AP033 Active Differential Probe Operator’s Manual