903RPFB

Features:

High-speed, low-power voltage comparator
R_AD-P_AK^® radiation-hardened against  natural space radiation
Total dose hardness: 100 krad (Si) typical; dependent upon orbit
8ns typ propagation delay
18mW power consumption (typ at +5V)
Separate analog and digital supplies
Flexible analog supply: +5V to +10V or ±5V
Input range includes negative supply rail
TTL compatible outputs
TTL compatible latch inputs


Pinout




Specifications

PARAMETER	MIN	MAX	UNITS
Analog Supply Voltage(VCC to VEE)	--	+12	V
Digital Supply Voltage	--	+7	V
Differential Input Voltage	-0.2	VCC + 0.2	V
Common-mode Input Voltage	VEE -0.2	VCC + 0.2	V
Latch Input Voltage	VEE -0.2	VDD + 0.2	V
Output Short-circuit Duration to GND Output Short-circuit Duration to VDD	Indefinite
	-	1	min
Operating Temperature Ranges	-55	+125
Junction Temperature (Tj)	-65	+160
Storage Temperature Range	-65	+150

Description

Maxwell Technologies' 903 high-speed, low-power voltage comparator features differential analog inputs and TTL logic outputs with active internal pull-ups. The 903 can be pow-ered from separate analog and digital powersupplies or from a single combined supple voltage. The analog input common-mode range includes the negative rail, allowing ground sensing when powered from a single supply. When powered from +5V, the 903 con-sumes 18mW. The 903 is equipped with a TTL compatible latch input. The comparator output is latched when the latch input is driven low.
Capable of surviving space environments, the 903 is ideal for satellite, spacecraft, and space probe missions. Maxwell Technologies' pat ented  RAD-PAK® packaging technology incor-porates radiation shielding in the microcircuit package. It eliminates box shielding while pro- viding lifetime in orbit or space mission. In GEO orbit, RAD-PAK® provides greater than 100 krad(Si) radiation dose rate. 903 is available with screening up to Class S.