Intersil Corporation HS-0548RH, HS-0549RH Datasheet
HS-0548RH, HS-0549RH
Data Sheet August 1999
Radiation Hardened Single 8/Differential 4
Channel CMOS Analog Multiplexers with
Active Overvoltage Protection
The HS-0548RH and HS-0549RH are radiation hardened
analog multiplexers with Active Overvoltage Protection and
guaranteed r
matching. Analog input levels may greatly
ON
exceed either power supply without damaging the device or
disturbing the signal path of other channels. Active
protection circuitry assures that signal fidelity is maintained
even under fault conditions that would destroy other
multiplexers. Analog inputs can withstand constant 70V
peak-to-peak levelswith±15Vsuppliesanddigitalinputswill
sustain continuous faultsup to 4V greaterthaneithersupply.
In addition, signal sourcesareprotectedfromshortcircuiting
should multiplexer supply loss occur: each input presents
1kΩ of resistance under this condition. These features make
the HS-0548RH and HS-0549RH ideal for use in systems
where the analog inputs originate from external equipment
or separately powered circuitry. Both devices are fabricated
with 44V dielectrically isolated CMOS technology. The
HS-0548 is an 8 channel device and the HS-0549 is a
4 channel differential version. If input overvoltage protection
is not needed, the HS-0508 and HS-509 multiplexers are
recommended.
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 5962-95694. A “hot-link” is provided
on our homepage for downloading.
http://www.intersil.com/spacedefense/space.htm
Ordering Information
INTERNAL
ORDERING NUMBER
5962D9569401VEA HS1-0548RH-Q -55 to 125
5962D9569401VEC HS1B-0548RH-Q -55 to 125
5962D9569402VEA HS1-0549RH-Q -55 to 125
5962D9569402VEC HS1B-0549RH-Q -55 to 125
MKT. NUMBER
TEMP. RANGE
(oC)
File Number
3543.3
Features
• Electrically Screened to SMD # 5962-95694
• QML Qualified per MIL-PRF-38535 Requirements
4
• Gamma Dose. . . . . . . . . . . . . . . . . . . . . . 1 x 10
RAD(Si)
• No Latch-Up
• No Channel Interaction During Overvoltage
• Guaranteed r
Matching
ON
• Maximum Power Supply. . . . . . . . . . . . . . . . . . . . . . . 44V
• Break-Before-Make Switching
• Analog Signal Range . . . . . . . . . . . . . . . . . . . . . . . . ±15V
• Access Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0µs
Applications
• Data Acquisition Systems
• Control Systems
• Telemetry
Pinouts
HS-0548RH GDIP1-T16 (CERDIP)
OR CDIP2-T16 (SBDIP)
TOP VIEW
16
15
14
13
12
11
10
16
15
14
13
12
11
10
9
9
A1
A2
GND
+V
SUPPLY
IN 5
IN 6
IN 7
IN 8
A1
GND
+V
SUPPLY
IN 1B
IN 2B
IN 3B
IN 4B
OUT B
1
AO
ENABLE
-V
SUPPLY
ENABLE
-V
SUPPLY
2
3
4
IN 1
5
IN 2
6
IN 3
7
IN 4
8
OUT
HS-0549RH GDIP1-T16 (CERDIP)
OR CDIP2-T16 (SBDIP)
TOP VIEW
1
A0
2
3
4
IN 1A
5
IN 2A
6
IN 3A
7
IN 4A
8
OUTA
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
| Copyright © Intersil Corporation 1999
Functional Diagrams
HS-0548 HS-0549
HS-0548RH, HS-0549RH
IN1
1K
IN2
IN8
1K
1K
OVER-
VOLTAGE
CLAMP AND
SIGNAL
ISOLATION
5V
REF
† DIGITAL INPUT PROTECTION
DECODER/
DRIVER
LEVEL
SHIFT
††††
A2
A0 A1
EN
HS-0548 TRUTH TABLE
“ON”
A2 A1 A0 EN
CHANNEL
X X X L NONE
LLLH 1
LLHH 2
LHLH 3
LHHH 4
HLLH 5
HLHH 6
HHLH 7
HHHH 8
OUT
IN1A
IN4A
IN1B
IN4B
1K
1K
1K
OVER-
VOLTAGE
CLAMP AND
SIGNAL
ISOLATION
5V
REF
† DIGITAL INPUT PROTECTION
DECODER/
DRIVER
LEVEL
SHIFT
†† †
A0 A1
HS-0549 TRUTH TABLE
“ON”
CHANNEL
A1 A0 EN
PAIR
X X L NONE
LLH 1
LHH 2
HLH 3
HHH 4
OUT A
OUT B
EN
Switching Waveforms
ADDRESS
DRIVE (V
-8V
)
A
V
= 0V
AL
OUTPUT A
-10V
1/2V
+10V
AH
VAH = 4.0
t
A
A2
V
A
A1
IN 2 THRU IN 7
A0
EN
V
GND
AH
IN 1
IN 8
OUT
10K
±10V
±
10V
V
OUT
VA INPUT
2V/DIV.
CH 1 ON
OUTPUT A
5V/DIV.
CH 8 ON
200ns/DIV.
FIGURE 1. ACCESS TIME
2
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