• 3 User Selectable Output Ranges up to 150 V
• High Current Drive Capability (60 mA)
• Precision, Low Noise Outputs
• Internal/External Voltage Control
• RS232 Interface and Graphical User Interface Software
• 3 Channel Scan Balancing
• Master Scan Controls
• Compatible With our Full Line of Piezo-electric Actuators

The MDT694A is a single channel high voltage amplifier designed to take advantage of the very high resolution achievable with our line of piezo-electric stacks. The MDT694A combines a precision high voltage output capability with a high output current capability.

• Input/Output Specs
• External Input Voltage Range: 0-10 V
• External Input Impedance: 10 kOhms
• External Input Gain
• Voltage Limit Position 1 (75 V): 7.5 V/V ±5%
• Voltage Limit Position 2 (100 V): 10 V/V ±5%
• Voltage Limit Position 3 (150 V): 15 V/V ±5%
• Output Voltage Range (Switch Selectable)
• Voltage Limit Position 1 (75 V): 0-75 V
• Voltage Limit Position 2 (100 V): 0-100 V
• Voltage Limit Position 3 (150 V): 0-150 V
• Output Current (maximum): 60 mA
• Output Impedance: 150 Ohms, 0.047 µF
• Minimum Load Impedance: 2.5 kOhms
• Output Noise: 1.5 mV_rms(~9.9 mV_pp)
• -3 dB Bandwidth
• No Load, Small Signal: 10 kHz
• No Load, 150 Vpp: 8.5 kHz
• 1.6 µF Piezo, 150 Vpp: 250 Hz
• Stability: <0.01% over 5 hrs
• A/D and D/A Performance
• D/A Resolution: 16-bit / 2.75 mV
• A/D Resolution: 16-bit / 3 mV
• Communications: RS-232
• General
• AC Input Voltage: 115 or 230 VAC (Switch Selectable)
• AC Input Frequency: 50 - 60 Hz
• AC Input Power (max): 85 VA / 30 VA (MDT693A / MDT694A)
• Operating Temperature: 10 - 40 °C