AMi-2 Optogenetic interface
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Part number: 60060 March 2017 Overview The AMi-2 Optogenetic interface independently controls up to four optogenetic lasers during behavioural tests performed with ANY-maze. The interface can either pulse a laser with very high precision, at a specific frequency and duty cycle for a set duration, or can 'play' a series of arbitrary pulses. For lasers that support it, the interface can also dynamically adjust the laser's intensity. Channels • Four entirely independent channels. • LEDs indicate when a channel is active. • Channels connect directly to lasers with TTL or analogue (max 5V) inputs. • Outputs use BNC connectors (adaptors are available for other types of connector). Laser intensity • Can control the intensity of lasers by adjusting the trigger voltage (not all lasers support this feature). Repetitive pulse output • Output pulse frequency from 0.01Hz to 10KHz. • Output pulse duty cycle from 1% to 99%. • Frequency and duty cycle can also be specified as 'duration on' and 'duration off'. • Pulse output can be programmed to end after a specific duration. • All timing accurate to ±100 nanoseconds. • Supports 'continuous' mode, i.e. not pulsing at all. Arbitrary pulse output • Can play 'pulse files' which define a series of pulses of arbitrary duration and intensity. • Pulse files are CSV files which can be created in Microsoft Excel or any text editor. • Pulse files define when each pulse is switched on, when it is switched off, and optionally, its intensity. • Up to 10,000 pulses can be included in a file. • Pulse files use millisecond resolution. • Files can play once or repeatedly.

Part number: 60060 March 2017 Technical specification Connection to PC Connection type Power Maximum current drawn from USB Isolation: Data isolation Power isolation Connection indication Channels Number of channels Connector Channel active indication Outputs Digital output Analogue output: Resolution Maximum output voltage Minimum output voltage Output resolution Output accuracy Current sink/source from output Output timing Minimum frequency Maximum frequency Minimum duty cycle Maximum duty cycle Shortest active period Timing accuracy Rise/fall time (±5V) Pulse file output Minimum pulse on...