Constant Current Stimulus Isolator

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A365RC, SYS-A365D, SYS-A365R

Automated bipolar pulsing for zero net charge on biological preparations

  • Constant current
  • Unipolar and bipolar stimulation modes
  • Built-in non-compliance alarm
  • Input is optically isolated
  • Standard TTL triggering
  • DC test mode
  • Powered by 9 V alkaline or rechargeable batteries
  • Choose system: 
    • Rechargeable with Charger (A365RC)
    • Alkaline Battery (SYS-A365D)
    • Rechargeable (SYS-A365R)

Unit Price: varies

Qty:

System:

For pricing, Customers outside of the US and Canada, please Contact your distributor

Options

Part # Description Battery Type Includes Charger
A365RC A365R with an A362 Battery Charger Rechargeable Battery Yes
SYS-A365R High Voltage Isolator, Bipolar Rechargeable Battery No
SYS-A365D High Voltage Isolator, Bipolar Alkaline Batteries _

Benefits

  • Compliance voltage is 100V or better
  • Bipolar mode auto generates alternating positive and negative pulses from TTL input
  • Test mode simplifies performance verification
  • Optical isolation enhances safety of the preparation and reduces noise susceptibility

Applications

  • Electrophysiology
  • Brain slice stimulation
  • In vivo brain and CNS stimulation

Activated by conventional logic-level commands, Model A365 can be gated by any pulse generator, stimulator or computer output with automated bipolar pulsing for zero net charge on biological preparations.

Dual tone audible alarms

A tone sounds when an open electrode circuit is detected or when system compliance is reached. A second optional tone sounds when a signal is applied to the input. A test switch is also provided to check battery charge.

Current delivery up to 10 mA at more than 100V

Stimulus currents are set using a three-digit control knob and a three-position range switch. Output current tracks control set­tings to better than 1%. Output current is load independent, and voltage suf­fi­cient to push the desired current through the load is automatically de­vel­oped, sub­ject only to compliance limits. Model A360LA produces up to 10 mA current, in three ranges, at more than 100 V compliance.

Bipolar Output Polarity

Output polarity is determined by a push switch on the front panel. Bipolar current is toggled by the command waveform, setting al­ter­nat­ing pulses as positive or negative.

Power

This A365RC Stimulus Isolator includes both the A365R Stimulus Isolator and the A362 battery charger.The rechargeable A365R is supplied with a nickel metal hydride battery stack. The A362 Battery Charger is required with the A365R

 NOTE: Not intended for human use.

OUTPUT WAVEFORM DC or current pulse
OUTPUT CURRENT RANGES 0.1, 1.0, and 10 mA
CURRENT AMPLITUDE ERROR 0.5% of full scale, max.
CURRENT RESOLUTION 0.1% of full scale, typical
OUTPUT LOAD VOLTAGE EXCURSION (COMPLIANCE) 100 V
EXTERNAL COMMAND THRESHOLD 5 V at 3 mA, min. 10 V, max.
TRIGGER THRESHOLD 2.0 V at 0.5 mA
OUTPUT POLARITY Reversible, manual switch or automatic
CURRENT RISE TIME & DELAY 6 μs, typical (1 KΩ load)
CURRENT FALL TIME & DELAY 10 μs, typical (1 KΩ load)
OUTPUT TO GROUND RESISTANCE 1012 Ω
OPTOCOUPLER 2500 V, rated min. breakdown voltage
POWER: Model A365D (dry cell) 16 alkaline 9 V batteries, included
POWER: Model A365R (rechargeable) 16 rechargeable NiMH 9 V batteries included
DIMENSIONS 8.5 x 3.5 x 5 in. (22 x 9 x 12 cm)
SHIPPING WEIGHT 4 lb. (1.8 kg)

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A362 Battery Charger
3468 Dual Rack Mount Kit for A365
3469 Single Rack Mount Kit for A365
13347 BNC to double banana connector
2851 BNC to BNC cable,
500257 BNC to BNC cable, 6""
500258 BNC to BNC cable, 12""
500259 BNC to BNC cable, 18""
500184 BNC to BNC cable, 10'
5470 Isolated Bioamplifier
DRL Dummy Load Resistor kit
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