ZTEC Instruments Adds Differential Input Signal Conditioning to Its Popular High-Resolution ZT4400 Series Digitizers and Oscilloscopes

ALBUQUERQUE, NM. – ZTEC Instruments (http://www.ztecinstruments.com) released a new differential (DF) analog front end option for its ZT4400 series of 12-bit, 13-bit and 14-bit digitizers and digital oscilloscopes (specifically including the ZT4421, ZT4422, ZT4431, ZT4432, ZT4441, and the ZT4442).  The DF option offers differential inputs or positive (+) and negative (-) input connectors for each channel (see example line drawings below)­­.

Differential signaling provides a signal conditioning advantage within noisy environments or situations where both the signal and return conductors need to be isolated from ground. Example applications include:

• When a signal source resides at a different ground potential than the oscilloscope or digitizer needed to make measurements.
• When an oscilloscope is used to measure signals distributed within a noisy environment where transient noise can be picked up on single-ended coaxial cabling.
• When ground isolation is required to eliminate ground loops and power line noise.

Key specifications of the ZT4400-DF series include:

• Two or four differential input channels
• 12-bit, 13-bit and 14 bit ADCs
• Up to 1 GS/s sample rate
• Up to 256 MS deep memory
• 250 MHz analog bandwidth
• 0.2 Vpp to 200 Vpp differential input signal ranges
• 50 Ω (100 Ω differential) and & 1M Ω (2M Ω differential) switchable input impedances
• Multi-channel alignment and synchronization to less than 50 ps
• Available in PXI, PCI, VXI and LXI

Three configurations for the ZT4400 series provide alternatives for ADC resolution and maximum sample rate as shown in the following table:

Specification	ZT4420	ZT4430	ZT4440
ADC resolution	12 bits	13 bits	14 bits
Maximum sample rate	1 GS/s	500 MS/s	800 MS/s

About ZTEC Instruments

ZTEC Instruments is a leading modular instrument company whose product focus includes oscilloscopes, waveform generators, and RF Test Equipment. ZTEC Instruments’ products are unique in that they provide powerful bench-top instrument capabilities in modular instrument form factors, including PCI, Compact PCI/PXI, VXI, and LXI. For more information about ZTEC Instruments, please visit http://www.ztecinstruments.com.