8408

Outside Diameter : 0.25 in
Thread Size : 4-40
Type : Standoffs, Hex Male/Female Threaded
Length : 1.375 in


Features:

*RAD-PAK^(R) patented shielding against natural
* space radiation
* Total dose hardness:
   - equal to 100 krad (Si), depending upon orbit  and space mission
* Package:
   - 28 pin RAD-PAK^(R) Flat Pack
* Single Supply Ooperation (+5V)
* Four 8 Bit DACs in one 28 Pin Package
* D/As Matched to within 1%
* TTL/CMOS Compatable
* Four-Quadrant Multiplication


Pinout




Specifications

PARAMETER	SYMBOL	MIN	MAX	UNIT
VDD   to I OUT 2A , I OUT 2B,  I OUT 2C,  I OUT 2D	--	0	7	V
V DD  to DGND	--	0	7	V
I OUT 1A,  I OUT 1B,  I OUT 1C,   I OUT 1D to DGND	--	-0.3	VDD  + 0.3	V
R RFA, RRF B, VRFC, RRFD to IOUT	--	-0.3	±25	V
I OUT 2A,I OUT 2B,  I OUT 2C,I OUT 2D to DGND	--	-0.3	VDD  + 0.3	V
DB0 through DB7 to DGND	--	-0.3	VDD  + 0.3	V
Control Logic Input Voltage to DGND	--		VDD  + 0.3	V
VREF A, VREF B, V REFC, V REFD  to IOUT 2A,I OUT 2B,  I OUT 2C,I OUT 2D			±25
Power Dissipation	PD			mW
Operating Temperature	TA	-55	20
Storage Temperature Range	TS	-65	125

Description

Maxwell Technologies' 8408 is a monolithic quad 8-bit multi-plying digital-to-analog CMOS converter. Each DAC has its own reference input, feedback resistor, and onboard data latches that feature read/write capability. The readback func- tion serves as memory for those systems requiring self-diag-nostics.

A common 8-bit TTL/CMOS compatible input port is used to load data into any of the four DAC data-latches. Control lines DS1, DS2 and A/B determine which DAC will accept data. Data loading is similar to that of a RAMs write cycle. Data can be read back onto the same bus with control line R/W. The 8408 is a bus compatible with most 8-bit microprocessors,including the 6800, 8080, 8085, and Z80. The 8408 operates on a single +5 volt supply and dissipates less than 20 mW.The 8408 is manufactured using highly stable, thin-film resistors on an advanced oxide-isolated, silicon-gate, CMOS process. The improved latch-up resistant design eliminates the need for external protective Schottky diodes.

Maxwell Technologies' patented RAD-PAK(R) packaging technology incorporates radiation shielding in the microcircuit pack-age.  I8408 eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or space mission.  In a GEO orbit, RAD-PAK provides greater than 100krad (Si) radiation dose tolerance. 8408 is available with screening up to Class S.


Parameters:

Technical/Catalog Information	8408
Vendor	Keystone Electronics
Category	Hardware, Fasteners, Accessories
Between Board Height	1.375" (34.9mm) 1 3/8"
Color	Natural
Length - Overall	1.563" (39.7mm) 1 9/16"
Material	Aluminum
Plating	Iridite
Size	0.250" (6.4mm) 1/4" Hex
Thread/Screw/Hole Size	4-40 Thread
Type	Hex Threaded, Male/Female
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	8408 8408 8408K ND 8408KND 8408K