The A150 is a high performance hybrid pulse amplitude discriminator developed for use in precision pulse spectroscopy.

Its low power dissipation (17mW), high speed (>4 MHz), and radiation hardness (10⁶ Rads), make it ideal for space flight use. The A150 is packaged in a standard 14-pin hybrid DIP.

FEATURES

• Low Power 17mW
• Repitition Rate >4 MHz
• Tunnel Diode, Snap Action Switching
• Radiation Hard (10⁶ Rads Si)
• High Reliability Screening

APPLICATIONS

• Space Instrumentation
• Portable Instrumentation
• Nuclear Instrumentation

A150 CONNECTION DIAGRAM

Absolute Maximum Ratings
Supply Voltage Vs	+,- 8V
CMOS Supply VDD	+ 18V
Input Voltage	+,- Vs
Operating Temperature Range	-55oC to +110oC
Storage Temperature Range	-65oC to +110oC
Lead Temperature Range (Soldering, 10 sec.)	300oC

ELECTRICAL CHARACTERISTICS Vs = +,- 6V, VDD = +10V, TA = +25oC
PARAMETER	SYMBOL	MIN	TYP	MAX	UNITS
Output Pulse Width-Positive	TWP	160	195	210	ns
Output Pulse Width-Negative	TWN	150	185	200	ns
Output Pulse Delay-Positive	TDP	-	70	120	ns
Output Pulse Delay-Negative	TDN	-	60	80	ns
Input Threshold Offset	VOS	-	+,-1	+,-5	mV
Supply Voltage	VS	+,-4.5	+,-6	+,-8	V
Supply Current	IS	+,-1.3	+,-1.5	+,-1.7	mA
CMOS Supply	VDD	+4	+10	+18	V
Power Consumption	PD	-	17	-	mW
Input Offset Drift	TCVos	-	-30	+,-10	uV/oC
Minimum Pulse Detected	VTmin	-	15	-	mV

A-150 OUTPUT WAVEFORMS

Horizontal Scale: 100ns/div Vertical Scale: 5V/div Upper Trace: Input Pulse Middle Trace: Outputs at VDD= +10V Lower Trace: Outputs at VDD= +5V

Horizontal Scale: 100ns/div Vertical Scale: 10V/div Upper Trace: Input Pulse at 5 MHz Middle Trace: Pin 9 Output at VDD= +10V Lower Trace: Pin 8 Output at VDD= +10V

FIGURE A

FIGURE B

A COMPLETE STATE OF THE ART PULSE PROCESSING SYSTEM

LOW LEVEL DISCRIMINATOR WITH VOLTAGE CONTROLLED THRESHOLD

A TWO DETECTOR TELESCOPE SYSTEM

Revised February 8, 2001