A
DVANCED
L
INEAR
D
EVICES,
I
NC.
ALD4211/ALD4212
ALD4213
CMOS LOW VOLTAGE HIGH SPEED QUAD PRECISION ANALOG SWITCHES
GENERAL DESCRIPTION
The ALD4211/ALD4212/ALD4213 are quad SPST CMOS analog
switches specifically designed for low voltage, high speed applications
where 0.2pC charge injection, 200pf sampling capacitor, and picoamp
leakage current are important analog switch operating characteristics.
These analog switches feature fast switching, low on-resistance and
micropower consumption.
TheALD4211/4212/4213 are designed for precision applications such as
charge amplifiers, sample and hold amplifiers, data converter switches,
and programmable gain amplifiers. These switches are also excellent for
low voltage micropower general purpose switching applications.
APPLICATIONS INFORMATION
The ALD4211/4212/4213 operate with a standard single power supply
from +3V to +12Volts. Functionality extends down to a +2 volt power
supply making it suitable for lithium battery or rechargeable battery
operated systems where power, efficiency, and performance are
important design considerations. Break-before-make switching is
guaranteed with single supply operation. The ALD4211/4212/4213
may also be used with dual power supplies from
±1.5
to
±6
volts.
With special charge balancing and charge cancellation circuitry on
chip the ALD4211/ALD4212/ALD4213 were developed for ultra low
charge injection applications. Using a 200pF sampling capacitor, very
fast precise signal acquisition may be achieved. With ultra low
quiescent current, these switches interface directly to CMOS logic
levels from microprocessor or logic circuits. On the board level, low
charge injection and fast operation may be achieved by using short
leads, minimizing input and output capacitances, and by adequate
bypass capacitors placed on the board at the supply nodes. For more
information, see Application Note AN4200.
The ALD4211/ALD4212/ALD4213 are manufactured with Advanced Linear
Devices enhanced ACMOS silicon gate CMOS process. They are
designed also as linear cell elements in Advanced Linear Devices’
“Function-Specific” ASIC.
ORDERING INFORMATION
Operating Temperature Range
-55°C to +125°C
-40°C to +85°C
-40°C to +85°C
16-Pin
CERDIP
Package
ALD4211 DC
ALD4212 DC
ALD4213 DC
16-Pin
Plastic Dip
Package
ALD4211 PC
ALD4212 PC
ALD4213 PC
16-Pin
SOIC
Package
ALD4211 SC
ALD4212 SC
ALD4213 SC
FEATURES
•
•
•
•
•
•
•
•
•
3V, 5V and
±5V
supply operation
0.2pC charge injection
200pF sampling capacitor
pA leakage current
0.1µW power dissipation
High precision
Rail to rail signal range
Low On-resistance
Break-before-make switching
BENEFITS
•
•
•
•
•
•
Five times faster signal capture
Low switching transients
Low signal loss
Essentially no DC power consumption
Full analog signal range from rail to rail
Flexible power supply range for battery
operated systems
APPLICATIONS
•
•
•
•
•
•
•
•
•
•
•
Fast sample and hold
Computer peripherals
PCMCIA
Low level signal conditioning circuits
Portable battery operated systems
Analog signal multiplexer
Programmable gain amplifiers
Switched capacitor circuits
Micropower based systems
Video/audio switches
Feedback control systems
PIN CONFIGURATION/ BLOCK DIAGRAM
IN
1
COM
1
OUT
1
V-
GND
OUT
4
COM
4
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IN
2
COM
2
OUT
2
V+
NC
OUT
3
COM
3
IN
3
LOGIC TABLE
Input Logic
ALD4211 ALD4212
0
1
On
Off
Off
On
Off
On
Switch State
ALD4213
Switch 1 / Switch 4
Switch 2 / Switch 3
IN
4
DC, PC, SC PACKAGE
On
Off
* Contact factory for industrial temperature range.
© 2005.1 Advanced Linear Devices, Inc. 415 Tasman Drive, Sunnyvale, California 94089 -1706 Tel: (408) 747-1155 Fax: (408) 747-1286 http://www.aldinc.com
ABSOLUTE MAXIMUM RATINGS
Supply voltage, V
+
referenced to V
-
GND
Terminal voltage range (any terminal) Note 1
Power dissipation
Operating temperature range PC, SC package
DC package
Storage temperature range
Lead temperature, 10 seconds
DC current (any terminal)
-0.3V to +13.2V
-0.3V to +13.2V
(V- -0.3)V to (V+ +0.3)V
600 mW
-40°C to +85°C
-55°C to +125°C
-65°C to +150°C
+260°C
10mA
POWER SUPPLY RANGE
4211/4212/4213 (PC,SC)
Parameter
Supply
Voltage
Symbol
V
SUPPLY
Min
±1.5
3.0
Typ
Max
±6.0
12.0
4211/4212/4213 (DC)
Min
±1.5
3.0
Typ
Max
±6.0
12.0
Unit
V
V
Dual Supply
Single Supply
DC ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C V
+
= +5.0V, V- = -5.0V GND = 0.0V unless otherwise specified
4211/4212/4213 (PC,SC)
Parameter
Analog Signal Range
On - Resistance
Symbol
V
A
R
ON
Min
-5.0
90
120
Typ
Max
5.0
135
190
4211/4212/4213 (DC)
Min
-5.0
90
140
Change of On-Resistance
from -V
S
to +V
S
Change of On-Resistance
with Temperature
Typ
Max
5.0
135
210
Unit
V
Ω
Test Conditions
V
A
= 0V
I
A
= 1mA
-40°C to +85°C
-55°C to +125°C
∆R
ON
∆R
ON
/∆T
16
16
%
0.43
0.43
%/°C
R
ON
Match between
Switches
Off Com Leakage
Current
I
COML
2
2
%
50
100
500
50
100
4000
pA
pA
pA
pA
pA
pA
pA
pA
pA
V
COM
=
±4.0V,V
OUT
= -/+4.0V
-40°C to +85°C
-55°C to +125°C
V
OUT
=
±4.0V,
V
COM
= -/+4.0V
Off Out Leakage
Current
I
OUTL
50
100
500
50
100
4000
-40°C to +85°C
-55°C to +125°C
On Channel
Leakage Current
I
D(ON)
50
100
500
50
100
4000
-40°C to +85°C
-55°C to +125°C
Logic "1"
Input High Voltage
Input Low Voltage
Input High or
Input Low Current
Supply Current
V
IH
V
IL
I
H
I
IL
I
SUPPLY
4.0
0.8
4.0
0.8
V
Logic "0"
10
0.01
1
0.01
10
1
nA
µA
ALD4211/ALD4212
ALD4213
Advanced Linear Devices
2
AC ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C V
+
= +5.0V, V
-
= -5.0V, GND = 0.0V unless otherwise specified
4211/4212/4213(PC)
4211/4212/4213(DC) 4211/4212/4213(SC)
Parameter
Turn On
Delay time
Turn Off
Delay time
Charge Injection
Off Isolation
Crosstalk
Total Harmonic
Distortion
Com/Out
Off Capacitance
Channel On
Capacitance
Pin to Pin
Capacitance
T
HD
Symbol
t
ON
t
OFF
Q
INJ
Min
Typ
60
Max
130
Min
Typ
60
Max
130
Min
Typ
60
Max
130
Unit
ns
Test Conditions
(Note 2)
60
0.2
75
90
0.05
0.01
130
1.0
60
0.2
75
90
0.05
0.01
130
1.0
60
0.2
75
90
0.05
0.01
130
1.0
ns
pC
dB
dB
%
(Note 2)
(Note 3) (Note 4)
At f = 100KHz, (Note 5)
At f = 100KHz, (Note 6)
R
L
= 10K
R
L
= 100K
COM(OFF)
OUT (OFF)
3.0
3.0
3.0
pF
C
DS (ON)
C
PP
5.7
5.7
5.7
pF
0.5
0.6
0.25
pF
DC ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C V
+
= +5.0V, V- = GND = 0.0V unless otherwise specified
Parameter
Analog Signal Range
On - Resistance
Symbol
V
A
R
ON
4211/4212/4213 (PC,SC)
Min
Typ
Max
0.0
195
250
+5.0
280
365
4211/4212/4213 (DC)
Min
Typ
Max
0.0
195
270
Change of On-Resistance
from -V
S
to +V
S
Change of On-Resistance
with Temperature
Unit
V
Ω
Test Conditions
+5.0
280
390
V
A
= 0V
I
A
= 1mA
-40°C to +85°C
-55°C to +125°C
∆R
ON
∆R
ON
/∆T
20
20
%
0.43
0.43
%/°C
R
ON
Match
Between Switches
Off Com Leakage
Current
I
COML
2
2
%
50
100
500
50
100
4000
pA
pA
pA
pA
pA
pA
pA
pA
pA
VCOM = 1 to 4V,VOUT = 4 to 1V
-40°C to +85°C
-55°C to +125°C
VOUT = 1 to 4V,VCOM = 4 to 1V
Off Out Leakage
Current
I
OUTL
50
100
500
50
100
4000
-40°C to +85°C
-55°C to +125°C
On Channel
Leakage Current
I
D(ON)
50
100
500
50
100
4000
-40°C to +85°C
-55°C to +125°C
Logic "1"
Input High Voltage
Input Low Voltage
Input High or
Input Low Current
Supply Current
V
IH
V
IL
I
IH
I
IL
I
SUPPLY
4.0
0.8
4.0
0.8
V
Logic "0"
10
0.01
1
0.01
10
1
nA
µA
Notes:
1.
Voltage on any terminal must be less than (V+) + 0.3V and greater than (V-) - 0.3V, at all times including before power is applied and V+ =V- = 0.0V. Vsupply
power supply needs to be sequenced on first on power turn-on and sequenced off last during power turn-off.
2.
See Switching Time Test Circuit. Break-before-make time is
not guaranteed. Turn on and turn off time may overlap.
3.
Guaranteed by design.
4.
See Charge Injection Test Circuit
5.
See Off Isolation Test Circuit
6.
See Crosstalk
Test Circuit.
7.
See switching time test circuit.
ALD4211/ALD4212
ALD4213
Advanced Linear Devices
3
AC ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C V
+
= +5.0V, V
- =
GND = 0.0V unless otherwise specified
4211/4212/4213 (PC)
4211/4212/4213 (DC)
4211/4212/4213 (SC)
Parameter
Turn On
Delay time
Turn Off
Delay time
Break-Before-Make
Symbol
t
ON
Min
Typ
85
Max
170
Min
Typ
85
Max
170
Min
Typ
85
Max
170
Unit
ns
Test Conditions
(Note 7)
t
OFF
t
BD
Q
INJ
15
46
90
46
90
46
90
ns
(Note 7)
Delay Time
Charge Injection
Off Isolation
Crosstalk
Total Harmonic
Distortion
Com/Out
Off Capacitance
Channel On
Capacitance
Pin to Pin
Capacitance
40
0.2
75
90
1.0
15
40
0.2
75
90
0.05
0.01
1.0
15
40
0.2
75
90
0.05
0.01
1.0
ns
pC
dB
dB
%
(Note 3) (Note 4)
At f = 100KHz, (Note 5)
At f = 100KHz, (Note 6)
R
L
= 10K
R
L
= 100K
T
HD
0.05
0.01
COM(OFF)
OUT (OFF)
3.0
5.7
3.0
5.7
3.0
5.7
pF
pF
C
DS (ON)
C
PP
0.5
0.6
0.25
pF
The ALD4211/ALD4212/ALD4213
precision due to these factors:
feature very high
1. The analog switch has ultra low capacitive charge coupling
so that the charge stored on a 200pF sampling capacitor
is minimally affected.
2. With special charge balancing and charge cancellation
circuitry designed on chip, the ALD4211/ALD4212/
ALD4213 achieves ultra low charge injection of typically
only 0.2pC resulting in extremely low signal distortion to
the external circuit.
3. The analog switch switching transistors have pA leakage
currents minimizing the droop rate of the sampling circuit.
4. The internal switch timing allows for the analog switch to
turn off internally without producing any residual transistor
channel charge injection, which may affect external
circuits. With a low loss polystyrene or polypropylene
sampling capacitor, long data retention times are possible
without significant signal loss.
The ALD4211/ALD4212/ALD4213 CMOS analog switches,
when used with industry standard pinout connection, have
the input and output pins reversed with the signal source
input connected to OUT pins and COM pins used as output
pins. In this connection and when used with 1,000pF or
greater value capacitors, or when connected to a DC current
or resistive load, the switch would not be operating in an ultra
low charge injection mode. Typical charge injection, in this
case, would be 5pC as the pin to pin capacitive coupling
effect would dominate. In this connection, all the other
characteristics of the ALD4211/ALD4212/ALD4213 CMOS
analog switches remain the same.
ALD4211/ALD4212
ALD4213
Advanced Linear Devices
4
DC ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C V
+
= +3.0V, V- = GND = 0.0V unless otherwise specified
4211/4212/4213 (PC,SC)
Parameter
Analog Signal Range
On - Resistance
Symbol
V
A
R
ON
Min
0.0
500
620
Typ
Max
3.0
700
880
4211/4212/4213 (DC)
Min
0.0
500
680
Change of On-Resistance
from -VS to +VS
Change of On-Resistance
with Temperature
Typ
Max
3.0
700
1000
Unit
V
Ω
Test Conditions
V
A
= 0V
I
A
= 1mA
-40°C to +85°C
-55°C to +125°C
∆R
ON
∆R
ON
/∆T
43
43
%
0.27
0.27
%/°C
R
ON
Match
Between Switches
Off Com
Leakage Current
I
COML
2
2
%
50
100
500
50
100
4000
pA
pA
pA
pA
pA
pA
pA
pA
pA
VCOM = 1 to 2V,VOUT = 2 to 1V
-40°C to +85°C
-55°C to +125°C
VOUT = 1 to 2V,VCOM = 2 to 1V
Off Out
Leakage Current
I
OUTL
50
100
500
50
100
4000
-40°C to +85°C
-55°C to +125°C
Channel On
Leakage Current
I
D(ON)
50
100
500
50
100
4000
-40°C to +85°C
-55°C to +125°C
Logic "1"
Input High Voltage
Input Low Voltage
Input High or
Input Low Current
Supply Current
V
IH
V
IL
I
IH
I
IL
I
SUPPLY
2.4
0.8
2.4
0.8
V
Logic "0"
10
0.01
1
0.01
10
1
nA
µA
AC ELECTRICAL CHARACTERISTICS
T
A
= 25
°
C V
+
= +3.0V, V
- =
GND = 0.0V unless otherwise specified
4211/4212/4213 (PC) 4211/4212/4213 (DC) 4211/4212/4213 (SC)
Parameter
Turn On Delay time
Symbol
t
ON
t
OFF
t
BD
Q
INJ
Min
Typ
160
Max
300
Min
Typ
160
Max
300
Min
Typ
160
Max
300
Unit
ns
Test Conditions
(Note 7)
Turn Off Delay time
Break-Before-Make
Delay Time
Charge Injection
Off Isolation
Crosstalk
Total Harmonic
Distortion
Com/Out
Off Capacitance
Channel On
Capacitance
Pin to Pin
Capacitance
78
20
82
1500
20
78
82
150
20
78
82
150
ns
ns
(Note 7)
0.2
75
90
0.5
0.2
75
90
0.05
0.01
0.5
0.2
75
90
0.05
0.01
0.5
pC
(Note 3) (Note 4)
dB
dB
At f = 100KHz, (Note 5)
At f = 100KHz, (Note 6)
T
HD
0.05
0.01
%
R
L
= 10K
R
L
= 100K
COM(OFF)
OUT (OFF)
3.0
5.7
3.0
5.7
3.0
5.7
pF
pF
C
DS (ON)
C
PP
0.5
0.6
0.25
pF
ALD4211/ALD4212
ALD4213
Advanced Linear Devices
5
京公网安备 11010802033920号
EEWORLD
