THORLABS MDT693B Open-Loop Piezo Controllers (3-Channel)

Number of Channels: 3

Connectors: BNC (One BNC-to-SMC Adapter per Channel Included)

Output Voltage: 0 - 75 V, 0 - 100 V, or 0 - 150 V (Selected by Switch on Rear)

Output Voltage Resolution

When Using Knobs:

- 1.1 mV (for 75 V Output Voltage Setting)

- 1.5 mV (for 100 V Output Voltage Setting)

- 2.2 mV (for 150 V Output Voltage Setting)

Output Current (Max): 60 mA

Output Noise(a): 1.5 mV (RMS) ~9.9 mV (Peak-to-Peak)

Output Impedance (Max): 150 Ω, 1.0 nF

Load Impedance(b) (Min): 2.5 kΩ

Bandwidth(-3 dB):

- 9 kHz (No Load, Small Signal)

- 8.5 kHz (No Load, 150 Vpp)(c)

- 200 Hz (1.4 µF Piezo, 150 Vpp)(c)

Bandwidth Stability (-3 dB): <0.01% Over 5 Hours

External Control through BNC

Input Voltage: 0 - 10 V

Input Impedance: 10 kΩ

Input Gain:

- 7.5 V/V ± 5% (for 75 V Output Voltage Setting)

- 10 V/V ± 5% (for 100 V Output Voltage Setting)

- 15 V/V ± 5% (for 150 V Output Voltage Setting)

Output Voltage Resolution When Using BNC: Limited by Noise of External Voltage Source

Scan Trim Gain Adjustment: 80% to 120% of Sum of Master Scan External Voltage and Offset from Rotary Adjustment Knob

External Control through Command Line

Physical Interface: Female Type B USB 2.0 Connector

Digital-to-Analog Resolution: 16-Bit, 2.75 mV

Analog-to-Digital Resolution: 16-Bit, 3.0 mV

Physical Specifications

Display Type: 7-Segment LED with Four Digits

Display Resolution: 0.1 V

Enclosure Size: 12.18" × 4.15" × 8.55" (309.4 mm × 105.5 mm × 217.1 mm)

Weight: 3.02 kg (6.65 lbs)

Operating Temperature: 10 to 40 °C

Power Specifications

Input Voltage: 100 - 240 VAC

Input Frequency: 50 - 60 Hz

Input Power (Max): 60 VA

Fuse Type: IEC6012

Fuse Dimensions: 5 mm x 20 mm

Fuse Rating: 600 mA

(a) Tested without an external load connected (1 nF output impedance only). Adding a capacitive load, such as a piezo, will decrease the noise because the capacitance will create a low-pass filter with the output resistance.

(b) The smallest allowable terminating resistance. Applying lower impedances will cause the short-circuit protection to limit the output voltage. Continued use in this mode will cause circuit degradation and eventual circuit failure.

(c) Assume a ramp function is used. The bandwidth depends upon the load and requires a calculation for a more representative number. See Chapter 6 of the manual for details.

MANUAL: