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The OP8214 peak detector provides an interface to measure the amplitude for up to 4 pulses. This panel provides both SMA and BNC connectors. The OP8214 requires external power input.

Front Interface

OP8214 Interface

SMA ConnectorThe SMA connector is used to connect the input signal. When the OP8214 detects a high-speed pulse in this input signal, it conditions it by stretching it to the extent that the OP5340 Analog-In can read and process the pulse.
Status LEDBlinks to indicate each high-speed pulse.
BNC ConnectorUsed to connect the OP8214 to an external monitoring device (i.e. an oscilloscope) to view the signal sent to the simulator.

Peak Detector Diagrams

Pulse Timing Diagram

OP8214 schematic

Peak Detector Specifications

Input Analog Pulse

Amplitude

0 to 3.5 volts

Input impedance

50 ohms

Pulse width minimum/ maximum

10 to 50 nanoseconds

Detection threshold

50 millivolts - smaller pulses will be ignored

Output Analog Level

Output type

Differential (compatible with OPAL-RT ADC mezzanine)

Amplitude range

0 to 4 volts, differential signals or single-ended follower

Hold time for peak value

± 20 microseconds. FPGA uses the ready_to_read signal to read (see timing diagram)

Connector

DB37, female, supports the 4 analog differential pair

Output Digital Signal

Signal ready_to_read

± 20 microseconds. When high, during around 20 microseconds, it means that the output analog value can be captured by the ADC mezzanine.

Connector

DB37, female, supports the 4 digital signals

Status Indicators

Monitoring LED

When an analog pulse is detected (above 50 mv), the LED is activated.

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