Intersil Corporation HS-1840ARH Datasheet
HS-1840ARH
Data Sheet August 1999
Rad-Hard 16 Channel CMOS Analog
Multiplexer with High-Z Analog Input
Protection
The HS-1840ARH is a radiation hardened, monolithic 16
channel multiplexer constructed with the Intersil Rad-Hard
Silicon Gate, bonded wafer, Dielectric Isolation process. It is
designed to provide a high input impedance to the analog
source if device power fails (open), or the analog signal
voltage inadvertently exceeds the supply by up to ±35V,
regardless of whether the device is powered on or off.
Excellent for use in redundant applications, since the
secondary device can be operated in a standby unpowered
mode affording no additional power drain. More significantly,
a very high impedance exists between the active and
inactive devices preventing any interaction. One of sixteen
channel selection iscontrolledby a 4-bit binary address plus
an Enable-Inhibit input which conveniently controls the
ON/OFF operation of several multiplexers in a system. All
inputs have electrostatic discharge protection.
The HS-1840ARH is processed and screened in full compliance
with MIL-PRF-38535 and QML standards. The device is
available in a 28 lead SBDIP and a 28 lead Cer amic Flatpack.
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 5962-95630. A “hot-link” is provided
on our homepage for downloading.
http://www.intersil.com/spacedefense/space.htm
File Number 4355.1
Features
• Electrically Screened to SMD # 5962-95630
• QML Qualified per MIL-PRF-38535 Requirements
• Pin-to-Pin for Intersil’s HS-1840RH and HS-1840/883S
• Improved Radiation Performance
5
- Gamma Dose (γ) 3 x 10
• Improved r
DS(ON)
Linearity
RAD(Si)
• Improved Access Time 1.5µs (Max) Over Temp and Post
Rad
• High Analog Input Impedance 500MΩ During Power Loss
(Open)
• ±35V Input Over Voltage Protection (Power On or Off)
• Dielectrically Isolated Device Islands
• Excellent in Hi-Rel Redundant Systems
• Break-Before-Make Switching
• No Latch-Up
Ordering Information
INTERNAL
ORDERING NUMBER
MKT. NUMBER
5962F9563002QXC HS1-1840ARH-8 -55 to 125
5962F9563002QYC HS9-1840ARH-8 -55 to 125
5962F9563002V9A HS0-1840ARH-Q 25
5962F9563002VXC HS1-1840ARH-Q -55 to 125
5962F9563002VYC HS9-1840ARH-Q -55 to 125
HS1-1840ARH/PROTO HS1-1840ARH/PROTO -55 to 125
HS9-1840ARH/PROTO HS9-1840ARH/PROTO -55 to 125
TEMP.RANGE
(oC)
Pinouts
(+5V
ADDR A3
HS1-1840ARH (SBDIP) CDIP2-T28
TOP VIEW
+V
1
S
NC
2
3
NC
4
IN 16
5
IN 15
6
IN 14
7
IN 13
8
IN 12
9
IN 11
10
IN 10
IN 9
11
12
GND
) V
REF
13
14
S
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
OUT
-V
S
IN 8
IN 7
IN 6
IN 5
IN 4
IN 3
IN 2
IN 1
ENABLE
ADDR A0
ADDR A1
ADDR A2
HS9-1840ARH (FLATPACK) CDFP3-F28
TOP VIEW
+V
S
NC
NC
IN 16
IN 15
IN 14
IN 13
IN 12
IN 11
IN 10
IN 9
GND
) V
(+5V
S
REF
ADDR A3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
OUT
-V
S
IN 8
IN 7
IN 6
IN 5
IN 4
IN 3
IN 2
IN 1
ENABLE
ADDR A0
ADDR A1
ADDR A2
Functional Diagram
HS-1840ARH
A0
A1
DIGITAL
ADDRESS
A2
A3
EN
BUFFER AND
LEVEL SHIFTER
TRUTH TABLE
A3 A2 A1 A0 EN “ON” CHANNEL
X X X X H None
LLLLL 1
LLLHL 2
LLHLL 3
LLHHL 4
LHLLL 5
LHLHL 6
LHHLL 7
LHHHL 8
HLLLL 9
HLLHL 10
HLHLL 11
HLHHL 12
HHLLL 13
HHLHL 14
HHHLL 15
HHHHL 16
IN 1
1
16
DECODERSADDRESS INPUT
P
P
MULTIPLEX
SWITCHES
OUT
IN 16
2
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