A310

Overview

• The accuracy of digital electronics with the convenience of analog controls

Features

A pulse generator/stimulator combining the reproducibility and accuracy of digital electronics with the fine resolution and continuous adjustment possible with analog circuitry. All timing parameters are entered with ten-turn readable potentiometers and six-position range switches. Outputs are accurate to within 1% of the set value.

Pulses

Pulses can be created in continuous run, single-shot, or train/burst modes. Duration of the train/burst is easily controlled using the onboard envelope generator or by using either of two external gating inputs. Used in conjunction with the A360, A365, A385, or A395, bipolar pulses or trains may be easily produced. Output stimulus can be fed through Intra 767 or Duo 773 for iontophoresis. Footswitch allows hands-free operation.

Three separate outputs

Three separate outputs are available on the front panel. A Monitor output provides 10-15 V signals (up to 50 mA) for viewing the output on an oscilloscope or for controlling other devices. The stimulator’s signal, simultaneously available at the Isolator output, is sufficient to drive any WPI A300 Series stimulus isolator (A360, A365, or A385) and is also TTL and CMOS compatible. The Variable output can provide signals varying between ±10 V with a resolution of 1 mV. Separate variable outputs are provided for positive and negative signals.

Specifications

TIMING PARAMETERS: EVENT INTERVAL	100 microseconds to 1000 s*
TIMING PARAMETERS: EVENT DELAY	10 microseconds to 100 s *
TIMING PARAMETERS: PULSE WIDTH	10 microseconds to 100 s *
TIMING PARAMETERS: TRAIN DURATION (ENVELOPE)	100 microseconds to 1000 s*
TIMING PARAMETERS: PULSE INTERVAL	20 microseconds to 100 s*
OUTPUTS: SYNC	5 microseconds , TTL, and 5 V CMOS compatible, 20 mA max.
OUTPUTS: MONITOR	10-15V, 50mA max.
OUTPUTS: ISOLATOR	TTL & 5V CMOS compatible, 20mA max.
VARIABLE (Pos or Neg): PULSED/DC	LOW RANGE HIGH RANGE
VARIABLE (Pos or Neg): Range	0 to ±1V 0 to ±10V
VARIABLE (Pos or Neg): Resolution	1mV 10mV
NOISE: Pulsed at 100 kHz bandwidth	< 500uV
NOISE: DC Wide Band	< 500uV
OUTPUT IMPEDANCE
INPUTS: EXTERNAL SYNC	Accepts 1-microseconds minimum pulses TTL, CMOS compatible
INPUTS: EXTERNAL GATE	Accepts 1-microseconds pulse to continuous TTL, CMOS compatible
POWER	95-130V or 190-260V, switch selectable single phase, 50/60Hz
DIMENSIONS	17 x 5.25 x 10 in. (43 x 13 x 25 cm)
SHIPPING WEIGHT	14 lb. (6.4 kg)

NOTES *Continuously variable in six ranges. All accuracies better than 1% of set value. 50kHz maximum pulse frequency.

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