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Part: HS9-508BRH
Category:
Communication
-> DSL (Digital Subscriber Line)
-> DSL Analog Front Ends
Description: Radiation Hardened 8 Channel CMOS Analog Multiplexer With Overvoltage Protection
Company: Intersil Corporation
Datasheet: Download HS9-508BRH datasheet File size : 44 kB
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Datasheet text preview:
HS-508ARH
CT RODU T LETE P TE PRODUC OBSO TU TISheet824 Dat UBSa FN4 BLE S , POSSI HS-508BRH
De c e m b e r 1999 F i l e Number 4097.2
Radiation Hardened 8 Channel CMOS Analog Multiplexer with Overvoltage Protection [ /Title (HS508AR H) /Subject (Radiation Hardened 8 Channel CMOS Analog Multiplexer with Overvoltage Protection) /Autho r () /Keywords (Harris Corporation, Semiconductor Communications DiviThe HS-508ARH is a dielectrically isolated, radiation hardened, CMOS analog multiplexer incorporating an important feature; it withstands analog input voltages much greater than the supplies. This is essential in any system where the analog inputs originate outside the equipment. They can withstand a continuous input up to 10V greater than either supply, which eliminates the possibility of damage when supplies are off, but input signals are present. Equally important, it can withstand brief input transient spikes of several hundred volts; which otherwise would require complex external protection networks. Necessarily, ON resistance is somewhat higher than similar unprotected devices, but very low leakage current combine to produce low errors. Reference Application Notes 520 and 521, available from the Semiconductor Products Division of Intersil, for further information on the HS-508ARH multiplexer in general. The HS-508ARH has been specifically designed to meet exposure to radiation environments. Operation from -55oC to 125oC is guaranteed.
Features
· Electrically Screened to SMD # 5962-96742 · QML Qualified per MIL-PRF-38535 Requirements · Radiation Environment - Gamma Dose () . . . . . . . . . . . . . . . . . 1 x 105RAD(Si) - Dielectrically Isolated Device Islands - SEP >110 Mev-mg/cm2Analog/Digital Overvoltage Protection · Fail Safe with Power Loss (No Latchup) · Break-Before-Make Switching · DTL/TTL and CMOS Compatible · Analog Signal Range . . . . . . . . . . . . . . . . . . . . . . . . . . . .±15V · Fast Access Time · Supply Current at 1MHz Address Toggle . . . . . .4mA (Typ) · Standby Power . . . . . . . . . . . . . . . . . . . . . . . .7.5mW (Typ) Specifications for Rad Hard QML devices are controlled by the Defense Supply Center in Columbus (DSCC). The SMD numbers listed here must be used when ordering. Detailed Electrical Specifications for these devices are contained in SMD 5962-96742. A "hot-link" is provided on our homepage for downloading. www.intersil.com/spacedefense/newsafclasst.asp
Product Information
PRODUCT NUMBER 5962R9674201QEC 5962R9674201QXC 5962R9674201VEC 5962R9674201VXC INTERNAL MKT. NUMBER HS1-508ARH-8 HS9-508ARH-8 HS1-508ARH-Q HS9-508ARH-Q TEMP. RANGE (oC) -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125
HS1-508ARH/PROTO HS1-508ARH/PROTO HS9-508ARH/PROTO HS9-508ARH/PROTO
Pinouts
HS1-508ARH 16 LEAD SIDEBRAZE DIP MIL-STD-1835, CDIP2-T16 TOP VIEW
AO 1 EN 2 -VSUP 3 IN 1 4 IN 2 5 IN 3 6 IN 4 7 OUT 8 16 A1 15 A2 14 GND 13 +VSUP 12 IN 5 11 IN 6 10 IN 7 9 IN 8 A0 EN -VSUP IN1 IN2 IN3 IN4 OUT
HS9-508ARH 16 LEAD FLATPACK MIL-STD-1835, CDFP4-F16 TOP VIEW
1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 A1 A2 GND +VSUP IN5 IN6 IN7 IN8
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
HS-508ARH Functional Diagram
IN 1
A0 1 DIGITAL ADDRESS
P
N
A1 OUT
A2
EN ADDRESS INPUT BUFFER AND LEVEL SHIFTER
8 P DECODERS N IN 8
MULTIPLEX SWITCHES
TRUTH TABLE A2 X L L L L H H H H A1 X L L H H L L H H A0 X L H L H L H L H EN L H H H H H H H H ``ON'' CHANNEL NONE 1 2 3 4 5 6 7 8
2
HS-508ARH Schematic Diagrams
V+ R9 Q1 Q4 D3 LEVEL SHIFTER V+ R10 TTL REFERENCE CIRCUIT
OVERVOLTAGE PROTECTION V+
R2 R5 R3 R4 R6 R8 R7
LEVEL SHIFTED ADDRESS TO DECODE LEVEL SHIFTED ADDRESS TO DECODE
ADD IN.
D2 R1 200 D1
VV-
FIGURE 1. ADDRESS INPUT BUFFER AND LEVEL SHIFTER
FROM DECODE +V
OVERVOLTAGE V+
PROTECTION
Q5 D7 D6 D4 D5 OUT
A0 OR A0 IN A1 OR A1 A2 OR A2
R11 1K
Q6
V ENABLE VTO N-CHANNEL DEVICE OF THE SWITCH PAIR TO P-CHANNEL DEVICE OF THE SWITCH PAIR FROM DECODE
FIGURE 2. ADDRESS DECODER
FIGURE 3. MULTIPLEX SWITCH
3
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