OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

ADG439FBRZ-REEL

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
High Performance, 4-/8-Channel,
Fault-Protected Analog Multiplexers
ADG438F/ADG439F
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2011 Analog Devices, Inc. All rights reserved.
FEATURES
All switches off with power supply off
Analog output of on channel clamped within power supplies
if an overvoltage occurs
Latch-up proof construction
Fast switching times
t
ON
250 ns maximum
t
OFF
150 ns maximum
Fault and overvoltage protection: −40 V to +55 V
Break-before-make construction
TTL- and CMOS-compatible inputs
APPLICATIONS
Data acquisition systems
Industrial and process control systems
Avionics test equipment
Signal routing between systems
High reliability control systems
GENERAL DESCRIPTION
The ADG438F and ADG439F are CMOS analog multiplexers, with
the ADG438F comprising eight single channels and the ADG439F
comprising four differential channels. These multiplexers provide
fault protection. Using a series n-channel, p-channel, and
n-channel MOSFET structure, both device and signal source
protection is provided in the event of an overvoltage or power
loss. The multiplexer can withstand continuous overvoltage
inputs from −40 V to +55 V. During fault conditions with power
supplies off, the multiplexer input (or output) appears as an open
circuit and only a few nanoamperes of leakage current flows. This
protects not only the multiplexer and the circuitry driven by the
multiplexer, but also protects the sensors or signal sources which
drive the multiplexer.
The ADG438F switches one of eight inputs to a common output
as determined by the 3-bit binary address lines, A0, A1, and A2.
The ADG439F switches one of four differential inputs to a
common differential output as determined by the 2-bit binary
address lines, A0 and A1. An EN input on each device is used
to enable or disable the device. When disabled, all channels are
switched off.
FUNCTIONAL BLOCK DIAGRAM
S1
S8
A0
D
ADG438F
A1 A2 EN
1 OF 8
DECODER
00468-001
Figure 1.
S1A
A0
DA
ADG439F
A1
S4A
S1B
S4B
DB
EN
1 OF 4
DECODER
00468-101
Figure 2.
PRODUCT HIGHLIGHTS
1. Fault Protection. The ADG438F and ADG439F can with-
stand continuous voltage inputs up to −40 V or +55 V.
When a fault occurs due to the power supplies being
turned off, all the channels are turned off and only a
leakage current of a few nanoamperes flows.
2. On channel saturates while fault exists.
3. Low R
ON
.
4. Fast Switching Times.
5. Break-Before-Make Switching. Switches are guaranteed
break-before-make so that input signals are protected
against momentary shorting.
6. Trench Isolation Eliminates Latch-Up. A dielectric trench
separates the p-channel and n-channel MOSFETs thereby
preventing latch-up.
7. Improved Off Isolation. Trench isolation enhances the
channel-to-channel isolation of the ADG438F/ADG439F.
ADG438F/ADG439F
Rev. E | Page 2 of 16
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description......................................................................... 1
Functional Block Diagram .............................................................. 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Dual Supply ................................................................................... 3
Absolute Maximum Ratings............................................................ 5
ESD Caution...................................................................................5
Pin Configuration and Function Descriptions..............................6
Typical Performance Characteristics ..............................................7
Test Circuits........................................................................................9
Terminology .................................................................................... 12
Theory of Operation ...................................................................... 13
Outline Dimensions....................................................................... 14
Ordering Guide .......................................................................... 15
REVISION HISTORY
7/11—Rev. D to Rev. E
Updated Format..................................................................Universal
Changes to Product Highlights Section and General
Description ........................................................................................ 1
Changes to Specification Section and Table 1 .............................. 3
Changes to Table 2............................................................................ 5
Added Table 3 and Table 4; Renumbered Sequentially ............... 6
Changes to Figure 5 to Figure 10.................................................... 7
Changes to Figure 11 to Figure 13.................................................. 8
Added Figure 14 to Figure 16.......................................................... 8
Changes to Figure 18 to Figure 20, Figure 23, and Figure 24 ..... 9
Changes to Terminology Section.................................................. 12
Changes to Theory of Operation Section, Figure 29, and
Figure 30 .......................................................................................... 13
Updated Outline Dimensions....................................................... 14
Changes to Ordering Guide .......................................................... 15
2/00—Rev. C to Rev. D
ADG438F/ADG439F
Rev. E | Page 3 of 16
SPECIFICATIONS
DUAL SUPPLY
V
DD
= +15 V ± 10%, V
SS
= −15 V ± 10%, GND = 0 V, unless otherwise noted.
Table 1.
B Version
Parameter +25°C
−40°C to
+85°C
−40°C to
+105°C
−40°C to
+125°C Unit Test Conditions/Comments
ANALOG SWITCH
Analog Signal Range V
SS
+ 1.4 V typ Output open circuit
V
DD
− 1.4 V typ
V
SS
+ 2.2 V typ Output loaded, 1 mA
V
DD
– 2.2 V typ
R
ON
270 Ω typ −10 V ≤ V
S
≤ +10 V, I
S
= 1 mA
390 420 450 Ω max See Figure 17
On-Resistance Flatness, R
FLAT
(ON)
9 % typ −10 V ≤ V
S
≤ +10 V, I
S
= 1 mA
10 10 10 10 % max
R
ON
Drift 0.6 %/°C typ V
S
= 0 V, I
S
= 1 mA
On-Resistance Match Between
Channels, ΔR
ON
3 3 3 3 % max V
S
= ±10 V, I
S
= 1 mA
LEAKAGE CURRENTS
Source Off Leakage, I
S
(Off) ±0.01 nA typ
V
D
= ±10 V, V
S
= 10 V
m
±0.5 ±1.5 ±1.5 ±4 nA max See Figure 18
Drain Off Leakage, I
D
(Off) ±0.01 nA typ
V
D
= ±10 V, V
S
= 10 V
m
ADG438F ADG439F ±0.5 ±5 ±5 ±20 nA max See Figure 19
Channel On Leakage, I
D
, I
S
(On) ±0.01 nA typ V
S
= V
D
= ± 10 V
ADG438F/ADG439F ±0.5 ±5 ±5 ±20 nA max See Figure 20
FAULT
Source Leakage Current, I
S
(Fault) ±0.02 nA typ
V
S
= +55 V or −40 V, V
D
= 0 V;
see Figure 21
(With Overvoltage) ±0.05 ±0.1 ±0.2 ±0.2 μA max
Drain Leakage Current, I
D
(Fault) ±0.05 nA typ
V
S
= ±25 V, V
D
= 10 V; see
m
Figure 19
(With Overvoltage) ±0.05 ±0.1 ±0.2 ±0.2 μA max
Source Leakage Current, I
S
(Fault)
(Power Supplies Off)
±30 nA typ V
S
= ±25 V, V
D
= V
EN
, A0, A1, A2 = 0 V
±0.1 ±0.2 ±0.3 1 μA max See Figure 22
DIGITAL INPUTS
Input High Voltage, V
INH
2.4 2.4 2.4 V min
Input Low Voltage, V
INL
0.8 0.8 0.8 V max
Input Current
I
INL
or I
INH
±1 ±1 ±1 μA max V
IN
= 0 V or V
DD
Digital Input Capacitance, C
IN
5 pF typ
DYNAMIC CHARACTERISTICS
1
t
TRANSITION
175 ns typ R
L
= 1 MΩ, C
L
= 35 pF
220 300 300 330 ns max
V
S1
= ±10 V, V
S8
=
m
10 V; see Figure 25
t
OPEN
90
60 40 40 40 ns min
R
L
= 1 kΩ, C
L
= 35 pF, V
S
= 5 V;
see Figure 26
t
ON
(EN) 180 ns typ R
L
= 1 kΩ, C
L
= 35 pF
230 300 300 345 ns max V
S
= 5 V; see Figure 27
t
OFF
(EN) 100 ns typ R
L
= 1 kΩ, C
L
= 35 pF
130 150 150 173 ns max V
S
= 5 V; see Figure 27
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

ADG439FBRZ-REEL

Mfr. #:
Buy ADG439FBRZ-REEL
Manufacturer:
Analog Devices Inc.
Description:
Multiplexer Switch ICs High Perf 4:1 Fault-Protected
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet