Atec EGG-7260 User Manual

EG&G - 7260

DSP Lock-in Amplifier

- Frequency range: 0.001 Hz to 250 kHz

- Voltage sensitivity: 2 nV to 1 V full-scale

- Current input mode sensitivities: 2 fA to 1 μA full-scale

fA to 10 nA full-scale

- Line frequency rejection filter

- Dual phase demodulator with X-Y and R-θ outputs

- Very low phase noise of < 0.0001° rms

- 5-digit output readings

- Dual reference mode - allows simultaneous measurement of two signals at

different reference frequencies up to 20 kHz

- Single and dual harmonic mode - allows simultaneous measurement of up to two
different harmonics of a signal

- Virtual reference mode - allows reference free measurement of signals up to
60 kHz

- Direct Digital Synthesizer (DDS) oscillator with variable amplitude and
frequency

- Oscillator frequency and amplitude sweep generator

- Output time constant: 10 μs to 100 ks

- 8-bit programmable digital output port for external system control

- Three external ADCs, four external DACs

- Full range of auto-modes

- Standard IEEE-488 and RS232 interfaces with RS232 daisy-chain capability for

up to 16 instruments

- Large back-lit liquid crystal display (LCD) with menus for control and display of
instrument outputs in both digital and graphical format

- 32768 point internal curve storage buffer