a
3 V/5 V, 4/8 Channel High
Performance Analog Multiplexers
ADG608/ADG609
FUNCTIONAL BLOCK DIAGRAMS
FEATURES
+3 V, +5 V, 65 V Power Supplies
VSS to VDD Analog Signal Range
Low On Resistance (30 V max)
Fast Switching Times
t ON 75 ns max
t OFF 45 ns max
Low Power Dissipation (1.5 mW max)
Break-Before-Make Construction
ESD > 5000 V as per Military Standard 3015.7
TTL and CMOS Compatible Inputs
APPLICATIONS
Automatic Test Equipment
Data Acquisition Systems
Communication Systems
Avionics and Military Systems
Microprocessor Controlled Analog Systems
Medical Instrumentation
Battery Powered Instruments
Remote Powered Equipment
Compatible with 65 V DACs and ADCs such as
AD7840/8, AD7870/1/2/4/5/6/8
GENERAL DESCRIPTION
The ADG608 and ADG609 are monolithic CMOS analog multiplexers comprising eight single channels and four differential
channels respectively, fully specified for ± 5 V, +5 V and +3 V
power supplies. The ADG608 switches one of eight inputs to a
common output as determined by the 3-bit binary address lines
A0, A1 and A2. The ADG609 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 both devices is used to enable or disable the device. When disabled, all
channels are switched OFF. All the address and enable inputs
are TTL compatible over the full specified operating temperature range, making the parts suitable for bus-controlled systems
such as data acquisition systems, process controls, avionics and
ATEs since the TTL compatible address inputs simplify the digital
interface design and reduce the board space requirements.
The ADG608/ADG609 are designed on an enhanced LC2MOS
process that provides low power dissipation yet gives high
switching speed and low on resistance. Each channel conducts
equally well in both directions when ON and has an input signal
range which extends to the supplies. In the OFF condition, signal levels up to the supplies are blocked. All channels exhibit
break-before-make switching action preventing momentary
shorting when switching channels. Inherent in the design is low
charge injection for minimum transients when switching the
digital inputs.
REV. A
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
ADG608
ADG609
S1
S1A
DA
S4A
D
S1B
DB
S4B
S8
1 OF 8
DECODER
1 OF 4
DECODER
A0 A1 A2 EN
A0 A1 EN
The ability to operate from single +3 V, +5 V or ± 5 V bipolar
supplies makes the ADG608 and ADG609 perfect for use in
battery operated instruments and with the new generation of
DACs and ADCs from Analog Devices. The use of 5 V supplies and reduced operating currents gives much lower power
dissipation than devices operating from ± 15 V supplies.
PRODUCT HIGHLIGHTS
1. Extended Signal Range
The ADG608/ADG609 are fabricated on an enhanced
LC2MOS process giving an increased signal range which
extends to the supplies.
2. Low Power Dissipation
3. Low RON
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. Single/Dual Supply Operation
ORDERING GUIDE
Model
Temperature Range
Package Option*
ADG608BN
ADG608BR
ADG608BRU
ADG608TRU
ADG609BN
ADG609BR
ADG609BRU
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–55°C to +125°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
N-16
R-16A
RU-16
RU-16
N-16
R-16A
RU-16
*N = Plastic DIP; RU = Thin Shrink Small Outline Package (TSSOP);
R = 0.15" Small Outline IC (SOIC).
© Analog Devices, Inc., 1995
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
ADG608/ADG609–SPECIFICATIONS
DUAL SUPPLY1 (V
DD
= +5 V 6 10%, VSS = –5 V 6 10%, GND = 0 V, unless otherwise noted)
Parameter
ANALOG SWITCH
Analog Signal Range
RON
B Version
+258C
–40°C to
+858C
VSS to VDD
35
40
V
Ω typ
Ω max
5
6
5
6
Ω max
2
3
2
3
Ω max
∆RON
RON Match
Drain OFF Leakage ID (OFF)
ADG608
ADG609
Channel ON Leakage ID, IS (ON)
ADG608
ADG609
DIGITAL INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current
IINL or IINH
CIN, Digital Input Capacitance
DYNAMIC CHARACTERISTICS2
tTRANSITION
± 0.05
± 0.5
± 0.05
± 0.5
± 0.5
± 0.05
± 0.5
± 0.5
±2
±2
±1
±3
± 1.5
VSS to VDD
Units
22
30
22
30
LEAKAGE CURRENTS
Source OFF Leakage IS (OFF)
T Version
+258C –558C to
+1258C
± 0.05
± 0.5
± 0.05
± 0.5
± 0.5
± 0.05
± 0.5
± 0.5
2.4
0.8
±1
5
50
75
50
75
2.4
0.8
V min
V max
±1
µA max
pF typ
VIN = 0 or VDD
ns typ
ns max
RL = 300 Ω, CL = 35 pF;
VS1 = ± 3.5 V, VS8 = 73.5 V;
Test Circuit 5
RL = 300 Ω, CL = 35 pF;
VS = +3.5 V; Test Circuit 6
RL = 300 Ω, CL = 35 pF;
VS = +3.5 V; Test Circuit 7
RL = 300 Ω, CL = 35 pF;
VS = +3.5 V; Test Circuit 7
VS = 0 V, RS = 0 Ω, CL = 1 nF;
Test Circuit 8
RL = 1 kΩ, CL = 15 pF, f = 100 kHz;
VS = 3 V rms; Test Circuit 9
RL = 1 kΩ, CL = 15 pF, f = 100 kHz;
Test Circuit 10
± 10
±5
100
10
tON (EN)
Charge Injection
50
75
30
45
6
OFF Isolation
85
85
dB typ
Channel-to-Channel Crosstalk
85
85
dB typ
CS (OFF)
CD (OFF)
ADG608
ADG609
CD (ON)
ADG608
ADG609
9
9
pF typ
40
20
40
20
pF typ
pF typ
54
34
54
34
pF typ
pF typ
tOFF (EN)
POWER REQUIREMENTS
IDD
ISS
0.05
0.2
0.01
0.1
10
60
0.2
2
0.1
1
50
75
30
45
6
0.05
0.2
0.01
0.1
VDD = +5.5 V, VSS = –5.5 V
VD = ± 4.5 V, VS = 74.5 V;
Test Circuit 2
VD = ± 4.5 V, VS = 74.5 V;
Test Circuit 3
± 20
± 10
± 10
tOPEN
90
–3.5 V < VS < +3.5 V, IS = –1 mA;
VDD = +4.5 V, VSS = –4.5 V;
Test Circuit 1
–3 V < VS < +3 V, IDS = –1 mA;
VDD = +5 V, VSS = –5 V
VS = 0 V, IDS = –1 mA;
VDD = +5 V, VSS = –5 V
nA typ
nA max
nA typ
nA max
nA max
nA typ
nA max
nA max
5
90
Test Conditions/
Comments
ns min
100
75
0.2
2
0.1
1
ns typ
ns max
ns typ
ns max
pC typ
µA typ
µA max
µA typ
µA max
VS = VD = ± 4.5 V;
Test Circuit 4
VIN = 0 V or VDD
NOTES
1
Temperature ranges are as follows: B Version: –40°C to +85°C; T Version: –55°C to +125°C.
2
Guaranteed by design, not subject to production test.
Specifications subject to change without notice.
–2–
REV. A
ADG608/ADG609
SINGLE SUPPLY1
(VDD = +5 V 6 10%, VSS = 0 V, GND = 0 V, unless otherwise noted)
Parameter
ANALOG SWITCH
Analog Signal Range
RON
B Version
+258C
–408C to
+858C
0 to VDD
60
70
V
Ω typ
Ω max
5
6
5
6
Ω max
2
3
2
3
Ω max
∆RON
RON Match
Drain OFF Leakage ID (OFF)
ADG608
ADG609
Channel ON Leakage ID, IS (ON)
ADG608
ADG609
DIGITAL INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current
IINL or IINH
CIN, Digital Input Capacitance
DYNAMIC CHARACTERISTICS2
tTRANSITION
± 0.05
± 0.5
± 0.05
± 0.5
± 0.5
± 0.05
± 0.5
± 0.5
±2
±2
±1
±3
± 1.5
0 to VDD
Units
40
50
40
50
LEAKAGE CURRENTS
Source OFF Leakage IS (OFF)
T Version
+258C –558C to
+1258C
± 0.05
± 0.5
± 0.05
± 0.5
± 0.5
± 0.05
± 0.5
± 0.5
2.4
0.8
±1
5
80
100
80
100
2.4
0.8
V min
V max
±1
µA max
pF typ
VIN = 0 or VDD
ns typ
ns max
RL = 300 Ω, CL = 35 pF;
VS1 = 3.5 V/0 V, VS8 = 0 V/3.5 V;
Test Circuit 5
RL = 300 Ω, CL = 35 pF;
VS = +3.5 V; Test Circuit 6
RL = 300 Ω, CL = 35 pF;
VS = +3.5 V; Test Circuit 7
RL = 300 Ω, CL = 35 pF;
VS = +3.5 V; Test Circuit 7
VS = 0 V, RS = 0 Ω, CL = 1 nF;
Test Circuit 8
RL = 1 kΩ, CL = 15 pF, f = 100 kHz;
VS = 1.5 V rms; Test Circuit 9
RL = 1 kΩ, CL = 15 pF, f = 100 kHz;
Test Circuit 10
± 10
±5
150
10
tON (EN)
OFF Isolation
80
100
40
50
0.5
3
85
Channel-to-Channel Crosstalk
85
85
dB typ
CS (OFF)
CD (OFF)
ADG608
ADG609
CD (ON)
ADG608
ADG609
9
9
pF typ
40
20
40
20
pF typ
pF typ
54
34
54
34
pF typ
pF typ
tOFF (EN)
Charge Injection
POWER REQUIREMENTS
IDD
0.05
0.2
10
60
0.2
2
ns min
80
100
40
50
0.5
3
85
0.05
0.2
150
75
0.2
2
NOTES
1
Temperature ranges are as follows: B Version: –40°C to +85°C; T Version: –55°C to +125°C.
2
Guaranteed by design, not subject to production test.
Specifications subject to change without notice.
REV. A
–3–
VDD = +5.5 V
VD = 4.5 V/0.1 V, VS = 0.1 V/4.5 V;
Test Circuit 2
VD = 4.5 V/0.1 V, VS = 0.1 V/4.5 V;
Test Circuit 3
± 20
± 10
± 10
tOPEN
130
VS = +3.5 V, IS = –1 mA;
VDD = +4.5 V;
Test Circuit 1
+1 V < VS < +3 V, IDS = –1 mA;
VDD = +5 V
VS = 0 V, IDS = –1 mA;
VDD = +5 V
nA typ
nA max
nA typ
nA max
nA max
nA typ
nA max
nA max
5
130
Test Conditions/
Comments
ns typ
ns max
ns typ
ns max
pC typ
pC max
dB typ
µA typ
µA max
VS = VD = 4.5 V/0.1 V;
Test Circuit 4
VIN = 0 V or VDD
ADG608/ADG609–SPECIFICATIONS
SINGLE SUPPLY1
(VDD = +3.3 V 6 10%, VSS = 0 V, GND = 0 V, unless otherwise noted)
Parameter
ANALOG SWITCH
Analog Signal Range
RON
RON Match
LEAKAGE CURRENTS
Source OFF Leakage IS (OFF)
Drain OFF Leakage ID (OFF)
ADG608
ADG609
Channel ON Leakage ID, IS (ON)
ADG608
ADG609
DIGITAL INPUTS
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current
IINL or IINH
CIN, Digital Input Capacitance
DYNAMIC CHARACTERISTICS2
tTRANSITION
B Version
+258C
–408C to
+858C
T Version
+258C –558C to
+1258C
0 to VDD
60
90
3
± 0.05
± 0.5
± 0.05
± 0.5
± 0.5
± 0.05
± 0.5
± 0.5
100
3
±2
±2
±1
±3
± 1.5
0 to VDD
60
90
3
120
3
± 0.05
± 0.5
± 0.05
± 0.5
± 0.5
± 0.05
± 0.5
± 0.5
2.4
0.8
±1
5
120
170
120
170
Test Conditions/
Comments
V
Ω typ
Ω max
Ω max
VS = +1.5 V, IS = –1 mA;
VDD = +3 V; Test Circuit 1
VS = 0 V, IDS = –1 mA, VDD = +3.3 V
± 20
± 10
2.4
0.8
V min
V max
±1
µA max
pF typ
VIN = 0 or VDD
ns typ
ns max
RL = 300 Ω, CL = 35 pF;
VS1 = 1.5 V/0 V, VS8 = 0 V/1.5 V;
Test Circuit 5
RL = 300 Ω, CL = 35 pF;
VS = +1.5 V; Test Circuit 6
RL = 300 Ω, CL = 35 pF;
VS = +1.5 V; Test Circuit 7
RL = 300 Ω, CL = 35 pF;
VS = +1.5 V; Test Circuit 7
VS = 0 V, RS = 0 Ω, CL = 1 nF;
Test Circuit 8
RL = 1 kΩ, CL = 15 pF, f = 100 kHz;
VS = 1 V rms; Test Circuit 9
RL = 1 kΩ, CL = 15 pF, f = 100 kHz;
Test Circuit 10
± 10
± 10
±5
250
tOPEN
10
tON (EN)
OFF Isolation
120
170
40
60
0.5
3
85
Channel-to-Channel Crosstalk
85
85
dB typ
CS (OFF)
CD (OFF)
ADG608
ADG609
CD (ON)
ADG608
ADG609
9
9
pF typ
40
20
40
20
pF typ
pF typ
54
34
54
34
pF typ
pF typ
tOFF (EN)
Charge Injection
POWER REQUIREMENTS
IDD
0.05
0.2
10
225
75
0.2
2
ns min
120
170
40
60
0.5
3
85
0.05
0.2
VDD = +3.6 V
VD = 2.6 V/0.1 V, VS = 0.1 V/2.6 V;
Test Circuit 2
VD = 2.6 V/0.1 V, VS = 0.1 V/2.6 V;
Test Circuit 3
nA typ
nA max
nA typ
nA max
nA max
nA typ
nA max
nA max
5
225
Units
250
90
0.2
2
ns typ
ns max
ns typ
ns max
pC typ
pC max
dB typ
µA typ
µA max
VS = VD = 2.6 V/0.1 V;
Test Circuit 4
VIN = 0 V or VDD
NOTES
1
Temperature ranges are as follows: B Version: –40°C to +85°C; T Version: –55°C to +125°C.
2
Guaranteed by design, not subject to production test.
Specifications subject to change without notice.
–4–
REV. A
ADG608/ADG609
ABSOLUTE MAXIMUM RATINGS 1
SOIC Package
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 77°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
TSSOP Package
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 158°C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . +215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . +220°C
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >5000 V
(TA = +25°C unless otherwise noted)
VDD to VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6.5 V
VSS to GND . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –6.5 V
Analog, Digital Inputs2 . . . . . . . . . . . . . . –0.3 V to VDD + 2 V
or 20 mA, Whichever Occurs First
Continuous Current, S or D . . . . . . . . . . . . . . . . . . . . 20 mA
Peak Current, S or D
(Pulsed at 1 ms, 10% Duty Cycle Max) . . . . . . . . . . 40 mA
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . –40°C to +85°C
Extended (T Version) . . . . . . . . . . . . . . . – 55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Plastic DIP Package
θJA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 117°C/W
Lead Temperature, Soldering (10 sec) . . . . . . . . . . +260°C
NOTES
1
Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those listed in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Only one absolute maximum rating may be applied at any one time.
2
Overvoltages at A, S, D or EN will be clamped by internal diodes. Current should
be limited to the maximum ratings given.
Table I. ADG608 Truth Table
Table II. ADG609 Truth Table
A2
A1
A0
EN
ON SWITCH
A1
A0
EN
ON SWITCH PAIR
X
0
0
0
0
1
1
1
1
X
0
0
1
1
0
0
1
1
X
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
NONE
1
2
3
4
5
6
7
8
X
0
0
1
1
X
0
1
0
1
0
1
1
1
1
NONE
1
2
3
4
X = Don’t Care
X = Don’t Care
PIN CONFIGURATIONS
DIP/SOIC/TSSOP
DIP/SOIC/TSSOP
A0
EN
REV. A
1
16 A1
2
VSS
3
S1
4
15 A2
14 GND
ADG608
13 VDD
TOP VIEW
(Not to Scale) 12 S5
A0
1
EN
2
15 GND
VSS
3
14 VDD
S1A
4
S2A
5
16 A1
ADG609 13 S1B
TOP VIEW
(Not to Scale) 12 S2B
S2
5
S3
6
11 S6
S3A
6
11 S3B
S4
7
10 S7
S4A
7
10 S4B
D
8
9 S8
DA
8
9 DB
–5–
ADG608/ADG609–Typical Performance Characteristics
100
50
TA = +25oC
45
90
80
35
ON RESISTANCE – Ω
ON RESISTANCE – Ω
40
VDD = +3V
30
VSS = –3V
25
20
VDD = +5V
15
VSS = –5V
10
VDD = +3V
60
VSS = 0V
50
40
30
VDD = +5V
VSS = 0V
10
0
–5.0
–4.0
–3.0
–2.0
–1.0 0.0
1.0
VD (VS) – Volts
2.0
3.0
4.0
0
0.0
5.0
VDD = +5V
90
VSS = –5V
ON RESISTANCE – Ω
35
+125oC
30
25
+85oC
20
+25oC
15
2.0
2.5
3.0
VD (VS) – Volts
3.5
4.0
4.5
5.0
60
–1.0 0.0
1.0
VD (VS) – Volts
2.0
3.0
4.0
0
0.0
5.0
Figure 2. RON as a Function of VD (VS) for Different
Temperatures
100
VSS = 0V
1.0
1.5
2.5
2.0
3.0
VD (VS) – Volts
3.5
4.0
4.5
5.0
0.03
VDD = +5V
+85oC
0.02
LEAKAGE CURRENTS – nA
80
+25oC
70
0.5
Figure 5. RON as a Function of VD (VS) for Different
Temperatures
+125oC
VDD = +3V
+25oC
30
10
–2.0
+85oC
40
5
–3.0
+125oC
50
20
–4.0
VDD = +5V
VSS = 0V
70
10
90
1.5
80
40
0
–5.0
1.0
100
50
45
0.5
Figure 4. RON as a Function of VD (VS): Single Supply Voltage
Figure 1. RON as a Function of VD (VS): Dual Supply Voltage
ON RESISTANCE – Ω
70
20
5
ON RESISTANCE – Ω
TA = +25oC
60
50
40
30
VSS = –5V
TA = +25oC
ID(OFF)
0.01
IS(OFF)
0.00
ID(ON)
–0.01
20
–0.02
10
0
0.0
0.5
1.0
1.5
2.0
VD (VS) – Volts
2.5
–0.03
–5
3.0
Figure 3. RON as a Function of VD (VS) for Different
Temperatures
–4
–3
–2
–1
0
1
VS, VD – Volts
2
3
4
5
Figure 6. Leakage Currents as a Function of VD (VS)
–6–
REV. A
ADG608/ADG609
0.02
0.02
VDD = +5V
VDD = +3V
VSS = 0V
VSS = 0V
0.01
ID(ON)
IS(OFF)
0.00
–0.01
0
1
2
3
VS,VD – Volts
ID(OFF)
TA = +25oC
ID(OFF)
LEAKAGE CURRENTS – nA
LEAKAGE CURRENTS – nA
TA =
+25oC
4
0.01
ID(ON)
IS(OFF)
0.00
–0.01
5
0
1.0
0.5
1.5
2.0
VS, VD – Volts
2.5
3.0
Figure 10. Leakage Currents as a Function of VD (VS)
Figure 7. Leakage Currents as a Function of VD (VS)
104
104
VDD = +5V
VDD = +5V
VSS = –5V
VSS = –5V
103
103
EN = 2.4V
ISS – µA
IDD – µA
102
102
EN = 2.4V
101
EN = 0V
101
100
EN = 0V
100
10–1
10–1
10
100
1k
10k
100k
FREQUENCY – Hz
1M
10–2
10
10M
10k
100k
FREQUENCY – Hz
1M
10M
120
30
CL = 1nF
VDD = +5V
VSS = –5V
110
20
100
90
VDD = +5V
VSS = 0V
10
dB
CHARGE INJECTION – pC
1k
Figure 11. Negative Supply Current vs. Switching Frequency
Figure 8. Positive Supply Current vs. Switching Frequency
80
VDD = +5V
VSS = –5V
70
0
VDD = +3V
VSS = 0V
–10
–5
–4
–3
–2
–1
0
1
2
SOURCE VOLTAGE – V
60
3
4
50
100
5
1k
10k
FREQUENCY – Hz
100k
1M
Figure 12. Crosstalk and Off Isolation vs. Frequency
Figure 9. Charge Injection vs. Analog Voltage VS
REV. A
100
–7–
ADG608/ADG609
Test Circuits
IDS
VDD
VSS
VDD
VSS
V1
S1
ID (OFF)
D
S2
D
S
S8
A
VD
+0.8V
VS
GND
VS
EN
RON = V1/IDS
Test Circuit 1. On Resistance
IS (OFF)
VDD
VSS
VDD
VSS
Test Circuit 3. ID (OFF)
VDD
VSS
D
S1
D
S2
VS
VSS
ID (ON)
S1
A
VDD
S8
VS
EN
GND
Test Circuit 2. IS (OFF)
VDD
VSS
VDD
A2
VSS
VD
+2.4V
+0.8V
VD
A
S8
GND
EN
Test Circuit 4. ID (ON)
3V
VIN
S1
ADDRESS
DRIVE (VIN)
VS1
A1
50Ω
A0
+2.4V
0V
S2 THRU S7
ADG608* S8
VS8
D
EN
GND
50%
50%
90%
VOUT
RL
300Ω
CL
35pF
VOUT
90%
tTRANSITION
* SIMILAR CONNECTION FOR ADG609
tTRANSITION
Test Circuit 5. Switching Time of Multiplexer, tTRANSITION
–8–
REV. A
ADG608/ADG609
VSS
VDD
3V
VSS
VDD
A2
VIN
A1
50Ω
ADDRESS
DRIVE (VIN)
VS
S1
0V
S2 THRU S7
A0
ADG608*
S8
+2.4V
D
EN
VOUT
RL
300Ω
GND
VOUT
CL
35pF
80%
80%
tOPEN
* SIMILAR CONNECTION FOR ADG609
Test Circuit 6. Break-Before-Make Delay, tOPEN
VDD
VSS
VDD
A2
VSS
3V
A1
S1
ENABLE
DRIVE (VIN)
VS
50%
0V
S2 THRU S8
A0
50%
tOFF (EN)
ADG608*
V0
D
EN
50Ω
VIN
0.9V0
VOUT
CL
35pF
RL
300Ω
GND
0.9V0
OUTPUT
0V
tON (EN)
* SIMILAR CONNECTION FOR ADG609
Test Circuit 7. Enable Delay, tON (EN), tOFF (EN)
VDD
VSS
VDD
A2
VSS
3V
LOGIC
INPUT (VIN)
A1
A0
RS
ADG608*
0V
D
S
EN
VS
VIN
VOUT
CL
1nF
VOUT
∆ VOUT
GND
QINJ = CL x ∆VOUT
* SIMILAR CONNECTION FOR ADG609
Test Circuit 8. Charge Injection
REV. A
–9–
ADG608/ADG609
VDD
VDD
VDD
A2
S1
A2
S8
A1
A0
VS
A0
1kΩ
ADG608
GND
VSS
EN
RL
1kΩ
D
S1
S8
VS
2.4V
ADG608
RL VOUT
1kΩ
S2
VOUT
D
EN
VDD
A1
GND
VSS
VSS
VSS
Test Circuit 9. OFF Isolation
Test Circuit 10. Channel-to-Channel Crosstalk
TERMINOLOGY
VDD
Most positive power supply potential.
VSS
Most negative power supply potential in dual
supplies. In single supply applications, it may
be connected to ground.
tOFF (EN)
Delay time between the 50% and 90% points
of the digital input and switch “OFF”
condition.
tTRANSITION
Delay time between the 50% and 90% points
of the digital inputs and the switch “ON”
condition when switching from one address
state to another.
tOPEN
“OFF” time measured between the 80%
points of both switches when switching from
one address state to another.
VINL
Maximum input voltage for logic “0.”
VINH
Minimum input voltage for logic “1.”
GND
Ground (0 V) reference.
RON
Ohmic resistance between D and S.
∆RON
RON variation due to a change in the analog
input voltage with a constant load current.
RON Match
Difference between the RON of any two
channels.
IS (OFF)
Source leakage current when the switch is off.
ID (OFF)
Drain leakage current when the switch is off.
ID, IS (ON)
Channel leakage current when the switch is
on.
VD, VS
Analog voltage on terminals D, S.
CS (OFF)
Channel input capacitance for “OFF”
condition.
CD (OFF)
Channel output capacitance for “OFF”
condition.
Charge Injection A measure of the glitch impulse transferred
from the digital input to the analog output
during switching.
CD, CS (ON)
“ON” switch capacitance.
IDD
Positive supply current.
CIN
Digital input capacitance.
ISS
Negative supply current.
tON (EN)
Delay time between the 50% and 90% points
of the digital input and switch “ON”
condition.
IINL (IINH)
Input current of the digital input.
Crosstalk
A measure of unwanted signal which is
coupled through from one channel to another
as a result of parasitic capacitance.
Off Isolation
A measure of unwanted signal coupling
through an “OFF” channel.
–10–
REV. A
ADG608/ADG609
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
16-Pin Plastic (N-16)
16
9
0.280 (7.11)
0.240 (6.10)
PIN 1
1
8
0.325 (8.25)
0.300 (7.62)
0.840 (21.33)
0.745 (18.93)
0.060 (1.52)
0.015 (0.38)
0.210
(5.33)
0.195 (4.95)
0.115 (2.93)
0.150
(3.81)
0.200 (5.05)
0.125 (3.18)
0.022 (0.558)
0.014 (0.356)
SEATING
PLANE
0.070 (1.77)
0.045 (1.15)
0.100
(2.54)
BSC
0.015 (0.381)
0.008 (0.204)
16-Pin SOIC (R-16A)
0.3937 (10.00)
0.3859 (9.80)
0.1574 (4.00)
0.1497 (3.80)
16
9
1
8
PIN 1
0.0098 (0.25)
0.2440 (6.20)
0.2284 (5.80)
0.0688 (1.75)
0.0196 (0.50)
0.0532 (1.35)
0.0099 (0.25)
x 45°
0.0040 (0.10)
0.0500
(1.27)
BSC
SEATING
PLANE
8°
0.0099 (0.25) 0° 0.0500 (1.27)
0.0192 (0.49)
0.0138 (0.35)
0.0075 (0.19)
0.0160 (0.41)
16-Pin TSSOP (RU-16)
0.201 (5.10)
0.193 (4.90)
9
0.256 (6.50)
0.246 (6.25)
0.177 (4.50)
0.169 (4.30)
16
1
8
PIN 1
0.006 (0.15)
0.002 (0.05)
SEATING
PLANE
REV. A
0.0433
(1.10)
MAX
0.0256
(0.65)
BSC
0.0118 (0.30)
0.0075 (0.19)
0.0079 (0.20)
0.0035 (0.090)
–11–
8°
0°
0.028 (0.70)
0.020 (0.50)
–12–
PRINTED IN U.S.A.
C2021a–18–4/96
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