Voltage Isolation Systems

A6906

Features

A6906

• For Floating Signals to ±850 V
• 60 MHz
• Monolithic
• 2 Channels
• CMRR: 60dB @ 1 MHz
• GPIB
• Push-button Self-calibration of Offset and Gain
• Each Channel Can Be Individually Set for Coupling and Attenuation

Applications

• Motor Drives
• Power Supplies
• Electronic Ballast
• UPS Systems
• Switch Mode Control
• Power Semiconductors

A6907 Voltage Isolators

The A6906 monolithic voltage isolators are essential tools for power conversion design. Accurate floating measurements are required to design and verify high-performance switch mode circuits. The A6906 offers safety, performance, multiple isolated channels (A6906-tow), direct connection to the measurement instrument and simplified controls in a single box. The A6906 offers high performance and safety for the lowest cost per channel.

The A6906 isolator features a bandwidth of 60 MHz, slew rate of 20,000 V/µs and CMRR of 60 dB (1,000:1) at 1 MHz and GPIB control in a package the size of a Tektronix TDS Oscilloscope. The ±850 V probes plug directly into the isolator and are specifically designed for safe connection to floating circuits and enhanced CMRR

Characteristics

Electrical

Attenuation Settings - 2,000X to 1X (100 mV/div to 200 V/div with oscilloscope set to 100 mV/div) in 1-2-5 steps.

Full Range Measurements - ±2 mV to ±850 V.

Frequency Response Bandwidth - 60 MHz (-3 dB).

Transient Response - Rise Time: <7.0 ns 100 mV/div and 200 mV/div. <5.8 ns 500 mV/div to 200 V/div.

Maximum Working Voltage - 600 V_RMS, 850 V (DC + peak AC).

Input Impedance - Resistance: 10 megaohm. Capacitance: 4.5 pF, ±0.5 pF.

Output Impedance - 50 Ohm.

Output Drive - ±500 mV into 50 Ohm load.

Maximum Common to Ground Slew Rate - 20,000 V/µs.

Offset Accuracy - ±20 mV.

Delay - Approximately 30 ns with 1.5 m probe cable.

Safety - UL1244, EN61010-1.

CMRR

Power Requirements

Line Voltage Ranges - 90-250 V AC.

Line Frequency Range - 47-66 Hz.