Products
MODEL 643 COMPUTER-CONTROLLED PRECISION AMPLIFIER
- Precision gains
- Differential input
- Remotely controllable
- 8 channels per rack
Description
The Model 643 is an 8-channel remote-controllable precision gain differential amplifier, with three highly-accurate switch-selectable gains of 100, 200, and 500. Under remote control, each channel's input can be shorted for zero measurement, and the front panel gain select can be overridden. Three lowpass filters are also front panel selectable.
Specifications
Gain: Switch selectable 100, 200, 500
Gain accuracy: Factory trimmed to ±0.05%
Gain indication: Front panel LEDs indicate selected gain, and remote/local control
Common-mode rejection: 100dB, DC to 60Hz
Frequency response: DC to 50Hz, 500Hz, or 5000Hz; switch selectable
Filter characteristic: 4-pole Butterworth lowpass
Signal output: ±10V max, 10mA peak load
Connection: Rear panel screw terminal blocks for input and output signals
Output monitor: Front panel banana jacks monitor output signal
REMOTE
CONTROL
Signal levels: 0V / 5V (logic level) control inputs
Address: Three bits select one of eight channels
Gain: Two bits select one of three gains, or front panel switch
Zero: One bit engages input shorting relay on addressed channel
Strobe: Pulse on Strobe input latches settings for selected channel
Power: Internal +5V and Common provided for external circuitry references
Connection: Rear panel screw terminal block
OVERALL
Controls: Front panel power switch and indicator lamp
Power: 115VAC or 230VAC (50/60Hz) selected on rear panel
Mechanical: 19" wide (standard rackmount), 3.5" high, 14" deep overall
