Banner Micro-Amp MA3 Specification Sheet

SUPPLY VOLTAGE:

  10 to 30V dc at less than 20 milliamps (ex-

clusive of load); 10% maximum ripple.

OUTPUT CONFIGURATION:  

two open-collector NPN (current 

sinking)  transistor  (solid-state)  switches;  one  normally  open  (light 

operate) and one normally closed (dark operate); 150 milliamps maxi-

mum, each output.  Saturation voltage less than 0.5V dc at 10 milliamp 

load.  Off-state leakage current less than 1 microamp.

RESPONSE SPEED:  

1 millisecond ON and OFF.

REPEATABILITY:  

0.3 millisecond.

SENSOR LEAD LENGTH:  

15 feet (4,5 m) maximum.

ADJUSTMENT:   

GAIN  adjustment  (single-turn  potentiometer; 

adjust with small flat-blade screwdriver).

INDICATOR:   

exclusive  Banner  Alignment  Indicator  Device 

(AID™) system lights a red LED indicator whenever the sensor "sees" 

its own modulated light source, and pulses at a rate proportional to the 

strength of the received light signal.

CONSTRUCTION*:   

totally  encapsulated  plug-in  package  with 

molded VALOX

® 

 housing.  Gold-flashed connection pins.

OPERATING TEMPERATURE:  

0 to +70 degrees C (32 to +158 degrees F).

*A Dimension Drawing appears on page 3.

MICRO-AMP

® 

Model MA3 Specifications

Model MA3P has the same specifications and performance as the MA3 amplifier, except that the MA3P has complementary PNP outputs in 

place of the MA3's NPN configuration.

OUTPUT:  

two PNP transistors, complementary outputs; one normally open (light operate) and one normally closed (dark operate).  150 mil-

liamps maximum, each output.  Saturation voltage is less than 1V dc at 10 milliamps.  Off-state leakage current is less than 1 microamp.

Printed in USA

Hookup Diagram, MA3 Amplifier

Functional Schematic, MA3 Amplifier

Banner MICRO-AMP

® 

modules 

MA3 

and 

MA3P 

are 

modulated amplifiers  designed 

for use with the miniature SP100 Series remote sensors

.  Miniature photoelectric 

sensors, such as the SP100s, have traditionally been used as non-modulated devices with 

very limited response.  These specially-engineered amplifiers bring about a dramatic 

improvement in the optical performance of miniature remote sensors.

MICRO-AMP  modules are powered by 10 to 30 volts dc, and feature the patented 

Banner Alignment Indicator Device (AID™) signal strength LED.  Sensor sensitivity 

is adjustable via a top-mounted GAIN potentiometer.  Model MA3 has complemen-

tary current sinking (NPN) outputs; model MA3P has complementary current sourc-

ing (PNP) outputs. Circuitry is epoxy-encapsulated and enclosed in a tough molded  

VALOX

® 

housing.  Connections may be made to the MICRO-AMP via the optional 

RS8 socket/wiring base, or the module may be mounted directly to a printed circuit 

board (see page 3).

The small size and the slim ribbon-style connecting cable of SP100 Series sensors 

make  it  possible  to  use  photoelectrics  in  many  situations  previously  thought  to  be 

impractical or even impossible. 

MICRO-AMP

® 

System

MA3 and MA3P Modulated Amplifiers

03340F3G

Model MA3P: PNP (current sourcing) output

Hookup Diagram, MA3P Amplifier