1.8 V to 5.5 V Single Supply
2.5 V Dual Supply
3 ON Resistance
0.75 ON Resistance Flatness
100 pA Leakage Currents
14 ns Switching Times
Single 8-to-1 Multiplexer ADG758
Differential 4-to-1 Multiplexer ADG759
20-Lead 4 mm 4 mm Chip Scale Package
Low Power Consumption
TTL-/CMOS-Compatible Inputs
For Functionally Equivalent Devices in 16-Lead TSSOP
Package, See ADG708/ADG709
APPLICATIONS
Data Acquisition Systems
Communication Systems
Relay Replacement
Audio and Video Switching
Battery-Powered Systems
in Chip Scale Package
ADG758/ADG759
FUNCTIONAL BLOCK DIAGRAMS
ADG758
S1
S8
1 OF 8
DECODER
A0DA1 A2
EN
S1A
S4A
S1B
S4B
ADG759
1 OF 4
DECODER
A0
A1
DA
DB
EN
GENERAL DESCRIPTION
The ADG758 and ADG759 are low voltage, CMOS analog
multiplexers comprising eight single channels and four differential
channels, respectively. The ADG758 switches one of eight inputs
(S1–S8) to a common output, D, as determined by the 3-bit
binary address lines A0, A1, and A2. The ADG759 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.
Low power consumption and an operating supply range of 1.8 V to
5.5 V make the ADG758 and ADG759 ideal for battery-powered,
portable instruments. All channels exhibit break-before-make
switching action preventing momentary shorting when switching channels.
These switches are designed on an enhanced submicron process
that provides low power dissipation yet gives high switching
speed, very low ON resistance and leakage currents. ON resistance
is in the region of a few ohms and is closely matched between
switches and very flat over the full signal range. These parts can
operate equally well as either multiplexers or demultiplexers
and have an input signal range that extends to the supplies.
The ADG758 and ADG759 are available in 20-lead chip
scale packages.
PRODUCT HIGHLIGHTS
1. Small 20-Lead 4 mm × 4 mm Chip Scale Packages (CSP).
2. Single/Dual Supply Operation. The ADG758 and ADG759
are fully specified and guaranteed with 3 V and 5 V singlesupply and ±2.5 V dual-supply rails.
3. Low R
(3 Ω Typical).
ON
4. Low Power Consumption (<0.01 µW).
5. Guaranteed Break-Before-Make Switching Action.
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; 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 EN, A, S, or D will be clamped by internal diodes. Current should
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the ADG758/ADG759 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
ADG758BCP–40°C to +85°C20-Lead Chip Scale Package (CSP)CP-20
ADG759BCP–40°C to +85°C20-Lead Chip Scale Package (CSP)CP-20
REV. A
–5–
Page 6
ADG758/ADG759
TERMINOLOGY
V
DD
V
SS
Most Positive Power Supply Potential
Most Negative Power Supply in a dual-supply application. In single-supply applications, this should be tied to
ground at the device.
GNDGround (0 V) Reference
SSource Terminal. May be an input or output.
DDrain Terminal. May be an input or output.
INLogic Control Input
R
ON
R
FLAT(ON)
Ohmic Resistance between D and S
Flatness is defined as the difference between the maximum and minimum value of ON resistance as measured over
the specified analog signal range.
I
(OFF)Source Leakage Current with the Switch OFF
S
I
(OFF)Drain leakage Current with the Switch OFF
D
I
, IS (ON)Channel Leakage current with the Switch ON
D
V
)Analog Voltage on Terminals D, S
D (VS
C
(OFF)OFF Switch Source Capacitance. Measured with reference to ground.
S
C
(OFF)OFF Switch Drain Capacitance. Measured with reference to ground.
D
C
, CS (ON)ON Switch Capacitance. Measured with reference to ground.
D
C
IN
t
TRANSITION
Digital Input Capacitance
Delay Time measured between the 50% and 90% points of the digital inputs and the switch ON condition when
switching from one address state to another.
t
(EN)Delay Time between the 50% and 90% points of the EN digital input and the switch ON condition.
ON
t
(EN)Delay Time between the 50% and 90% points of the EN digital input and the switch OFF condition.
OFF
t
OPEN
OFF Time measured between the 80% points of both switches when switching from one address state to another.
Off IsolationA measure of unwanted signal coupling through an OFF switch.
CrosstalkA measure of unwanted signal which is coupled through from one channel to another as a result of parasitic capacitance.
ChargeA measure of the glitch impulse transferred from the digital input to the analog output during switching.
Injection
On ResponseThe Frequency Response of the ON Switch.
On LossThe Loss Due to the ON Resistance of the Switch
V
V
I
I
I
INL
INH
INL
DD
SS
(I
INH
Maximum Input Voltage for Logic “0”
Minimum Input Voltage for Logic “1”
)Input Current of the Digital Input
Positive Supply Current
Negative Supply Current
–6–
REV. A
Page 7
Typical Performance Characteristics–
VD OR VS – DRAIN OR SOURCE VOLTAGE – V
00.5
7
6
5
4
3
2
1
0
ON RESISTANCE –
1.01.52.02.53.0
–40C
+25C
+85C
8
VDD = 3V
V
SS
= 0V
VS, (VD = V
DD
– VS) – V
01
0.12
CURRENT – nA
2345
VDD = 5V
V
SS
= 0V
T
A
= 25C
0.08
0.04
0.00
–0.04
–0.08
–0.12
ID (ON), VS = V
D
IS (OFF)
ID (OFF)
ADG758/ADG759
8
7
6
5
4
3
ON RESISTANCE –
2
1
0
012345
VD, VS, DRAIN OR SOURCE VOLTAGE – V
VDD = 2.7V
VDD = 3.3V
VDD = 4.5V
TA = 25C
V
= 0V
SS
VDD = 5.5V
TPC 1. ON Resistance as a Function of VD (VS) for Single
Supply
8
7
6
5
4
3
ON RESISTANCE –
2
1
0
–2.0
–3.0
–2.5
VD OR VS – DRAIN OR SOURCE VOLTAGE – V
–1.5
VDD = +2.25V
V
–1.0
–0.5
= –2.25V
SS
VDD = +2.75V
= –2.75V
V
SS
0.50
1.0
1.5
TA = 25C
2.0
2.5
3.0
TPC 4. ON Resistance as a Function of VD (VS) for
Different Temperatures, Single Supply
8
7
6
5
4
3
ON RESISTANCE –
2
1
0
–3.0 –2.5 –2.0
+85C
–40C
–1.5
–1.01.0 1.5 2.0 2.50.50
–0.5
VD OR VS – DRAIN OR SOURCE VOLTAGE – V
VDD = +2.5V
= –2.5V
V
SS
+25C
3.0
TPC 2. ON Resistance as a Function of VD (VS) for Dual
Supply
8
+25C
VDD = 5V
= 0V
V
SS
7
6
5
4
3
ON RESISTANCE –
2
1
0
012345
VD OR VS – DRAIN OR SOURCE VOLTAGE – V
+85C
–40C
TPC 3. ON Resistance as a Function of VD (VS) for Different
Temperatures, Single Supply
REV. A
TPC 5. ON Resistance as a Function of VD (VS) for
Different Temperatures, Dual Supply
TPC 6. Leakage Currents as a Function of VD (VS)
–7–
Page 8
ADG758/ADG759
0.12
0.08
0.04
0.00
CURRENT – nA
–0.04
–0.08
–0.12
00.5
IS (OFF)
1.01.52.03.0
VS, (VD = V
DD
– VS) – V
(ON), VS = V
I
D
ID (OFF)
VDD = 3V
= 0V
V
SS
= 25C
T
A
2.5
D
TPC 7. Leakage Currents as a Function of VD (VS)
0.12
0.08
0.04
0.00
CURRENT – nA
–0.04
–0.08
I
IS (OFF)
(ON), VS = V
D
VDD = +2.5V
= –2.5V
V
SS
= 25C
T
A
D
ID (OFF)
0.35
0.30
0.25
0.20
0.15
0.10
CURRENT – nA
0.05
0.00
–0.05
15
ID (OFF)
IS (OFF)
25354555657585
TEMPERATURE – C
VDD = 3V
V
= 0V
SS
ID (ON)
TPC 10. Leakage Currents as a Function of Temperature
10m
TA = 25C
1m
V
= +2.5V
100
10
1
CURRENT – A
100n
10n
DD
V
SS
= –2.5V
VDD = +5V
VDD = +3V
–0.12
–3.0
–2.5 –2.0 –1.5 –1.00 0.5 1.0 1.5 2.0 2.5
–0.53.0
V
, (VD = V
S
DD
– VS) – V
TPC 8. Leakage Currents as a Function of VD (VS)
0.35
0.30
0.25
0.20
0.15
0.10
CURRENT – nA
0.05
0.00
–0.05
15
25354555657585
TEMPERATURE – C
VDD = 5V, VSS = 0V
= +2.5V, VSS = –2.5V
V
DD
ID (OFF)
ID (ON)
IS (OFF)
TPC 9. Leakage Currents as a Function of Temperature
1n
10
1001k10k100k1M10M
FREQUENCY – Hz
TPC 11. Supply Current vs. Input Switching Frequency
0
–20
–40
–60
–80
ATTENUATION – dB
–100
–120
100k1M10M100M
30k
FREQUENCY – Hz
VDD = 5V
= 25C
T
A
TPC 12. OFF Isolation vs. Frequency
–8–
REV. A
Page 9
ADG758/ADG759
VOLTAGE – V
–3–2
20
Q
INJ
– pC
–1125
TA = 25C
10
0
–10
–20
–40
3
–30
04
VDD = 3V
V
SS
= 0V
VDD = +2.5V
V
SS
= –2.5V
VDD = 5V
V
SS
= 0V
0
–20
–40
–60
–80
ATTENUATION – dB
–100
–120
100k1M10M100M
30k
TPC 13. Crosstalk vs. Frequency
0
VDD = 5V
= 25C
T
A
–5
–10
FREQUENCY – Hz
VDD = 5V
= 25C
T
A
TPC 15. Charge Injection vs. Source Voltage
ATTENUATION – dB
–15
–20
100k1M10M100M
30k
FREQUENCY – Hz
TPC 14. ON Response vs. Frequency
REV. A
–9–
Page 10
ADG758/ADG759
Test Circuits
I
DS
V
V
DD
SS
V1
S
V
S
RON = V1/I
Test Circuit 1. ON Resistance
V
DD
V
I
V
(OFF)
S
S
A
V
D
DD
S1
S2
S8
GND
Test Circuit 2. IS (OFF)
V
DD
V
DD
V
IN
50
2.4V
A2
A1
S2 THRU S7
A0
ADG758
EN
GND
*SIMILAR CONNECTION FOR ADG759
D
V
S
DS
V
SS
V
SS
3V
)
0V
V
S1
V
S8
NC
NC
NC = NO CONNECT
D
0.8V
EN
V
SS
V
SS
*
V
S1
S8
S1
V
S8
D
R
300
C
L
L
35pF
ADDRESS
DRIVE (V
IN
V
OUT
V
OUT
Test Circuit 5. Switching Time of Multiplexer, t
V
DD
S1
S2
S8
GND
V
SS
D
0.8V
EN
Test Circuit 3. ID (OFF)
V
DD
V
S1
S8
V
SS
V
GND
SS
D
2.4V
EN
DD
Test Circuit 4. ID (ON)
50%
t
TRANSITION
TRANSITION
90%
50%
ID (OFF)
A
(ON)
I
D
A
t
TRANSITION
90%
V
D
V
D
DD
DD
S2 THRU S7
ADG758
GND
V
SS
V
SS
S1
S8
*
D
R
L
300
V
S
V
OUT
C
L
35pF
ADDRESS
DRIVE (V
Test Circuit 6. Break-Before-Make Delay, t
–10–
3V
)
IN
0V
V
OUT
80%
t
80%
OPEN
OPEN
REV. A
V
V
A2
V
IN
50
2.4V
A1
A0
EN
*SIMILAR CONNECTION FOR ADG759
Page 11
ADG758/ADG759
V
S
V
OUT
50
NETWORK
ANALYZER
R
L
50
GND
S
D
V
OUT
WITH SWITCH
V
OUT
WITHOUT SWITCH
INSERTION LOSS = 20 LOG
0.1F
V
DD
A2
A1
A0
EN
2.4V
0.1F
V
SS
V
DDVSS
DD
DD
S2 THRU S8
ADG758*
GND
V
DD
V
DD
A2
A1
ADG758
A0
S
EN
V
SS
V
SS
V
S1
S
D
R
L
300
C
L
35pF
V
OUT
Test Circuit 7. Enable Delay, t
V
SS
LOGIC INPUT
OUT
GND
V
SS
*
D
V
C
L
1nF
DRIVE (V
)
(V
IN
V
ENABLE
OUTPUT
3V
0V
OUT
3V
IN
0V
V
0V
)
0
ON
(EN), t
OFF
50%
(EN)
Q
INJ
0.9V
t
ON
= CL V
0
(EN)
OUT
50%
V
OUT
0.9V
t
OFF
(EN)
0
V
V
A2
A1
A0
EN
V
IN
50
*SIMILAR CONNECTION FOR ADG759
R
S
V
S
V
IN
*SIMILAR CONNECTION FOR ADG759
Test Circuit 8. Charge Injection
2.4V
NETWORK
ANALYZER
50
V
S
REV. A
V
V
DD
V
DDVSS
S
D
GND
SS
0.1F
50
OFF ISOLATION = 20 LOG
NETWORK
ANALYZER
50
V
OUT
R
L
50
V
S
V
OUT
VS
0.1F
A2
A1
A0
EN
Test Circuit 9. OFF Isolation
V
V
DD
V
DDVSS
ADG758
GND
SS
0.1F
EN
*
D
LOG
2.4V
V
OUT
V
S
NETWORK
ANALYZER
R
50
0.1F
A2
A1
A0
50
S1
S2
S8
*SIMILAR CONNECTION FOR ADG759
CHANNEL-TO-CHANNEL
CROSSTALK = 20
Test Circuit 10. Channel-to-Channel Crosstalk
Test Circuit 11. Bandwidth
Power-Supply Sequencing
When using CMOS devices, care must be taken to ensure correct
power-supply sequencing. Incorrect power-supply sequencing
can result in the device being subjected to stresses beyond the
maximum ratings listed in the data sheet. Digital and analog
V
OUT
L
inputs should always be applied after power supplies and ground.
For single-supply operation, V