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DG445CJ

P1-P3P4-P6P7-P9P10-P10
DG444/DG445
Improved, Quad, SPST Analog Switches
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = 12V, V- = 0, V
L
= 5V, GND = 0, V
INH
= 2.4V, V
INL
= 0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
Note 2: Typical values are for design aid only, are not guaranteed, and are not subject to production testing. The algebraic convention,
where the most negative value is a minimum and the most positive value a maximum, is used in this data sheet.
Note 3: Guaranteed by design.
Note 4: On-resistance match between channels and flatness are guaranteed only with bipolar-supply operation. Flatness is defined
as the difference between the maximum and the minimum value of on-resistance as measured at the extremes of the speci-
fied analog signal range.
Note 5: Leakage parameters I
S(OFF)
, I
D(OFF)
, I
D(ON)
, and IS
(ON)
are 100% tested at the maximum rated hot temperature and guaranteed at +25°C.
Note 6: Off-Isolation Rejection Ratio = 20log (V
D
/V
S
), V
D
= output, V
S
= input to off switch.
Note 7: Between any two switches.
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
ON-LEAKAGE CURRENTS
ON-LEAKAGE
(nA)
-2
-1
0
1
2
-15 0 15
V
S
, V
D
(V)
T
A
= +125°C
T
A
= +85°C
V+ = 15V
V- = -15V
DG444/5-1
-10
-5
510
OFF-LEAKAGE CURRENTS
OFF-LEAKAGE (nA)
-1
0
-0.5
0.5
1
V
S
, V
D
(V)
DG444/5-2
-15 0 15
-10
-5
510
T
A
= +125°C
V+ = 15V
V- = -15V
T
A
= +85°C
SWITCHING THRESHOLD vs.
BIPOLAR SUPPLY VOLTAGE
V
IN
(V)
0
0.5
1.5
2.0
2.5
3.0
3.5
±5 ±10 ±15 ±20
BIPOLAR SUPPLY VOLTAGE (V)
DG444/5-3
IN HI MIN
IN LOW MAX
C
L
= 1nF, V
GEN
= 0,
R
GEN
= 0Ω, Figure 3
Charge Injection (Note 3) Q pC510T
A
= +25°C
Turn-Off Time t
OFF
nsV
S
= 8V, Figure 2 60 200T
A
= +25°C
Turn-On Time t
ON
nsV
S
= 8V, Figure 2 300 400T
A
= +25°C
V+ = 10.8V; V
L
= 5.25V;
V
D
= 3V, 8V; I
S
= -10mA
Drain-Source
On-Resistance
100 160
Ω
V
ANALOG
All channels on or off,
V
IN
= 0V or 5V
µA
-5 +5
I
L
Logic Supply Current
-1 +0.001 +1
T
A
= T
MIN
to T
MAX
T
A
= +25°C
All channels on or off,
V
IN
= 0V or 5V
µA
-5 +5
I
GND
Ground Current
-1 -0.0001 +1
T
A
= T
MIN
to T
MAX
T
A
= +25°C
All channels on or off,
V
IN
= 0V or 5V
µA
-5 +5
I-Negative Supply Current
-1 -0.0001 +1
T
A
= T
MIN
to T
MAX
T
A
= +25°C
(Note 3)
All channels on or off,
V
IN
= 0V or 5V
CONDITIONS
V012Analog Signal Range
µA
-5 +5
I+Power-Supply Current
-1 +0.001 +1
T
A
= T
MIN
to T
MAX
T
A
= +25°C
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
T
A
= +25°C
Power-Supply Range V+, V- 10.8 24.0 V
R
DS(ON)
T
A
= T
MIN
to T
MAX
200
DYNAMIC
SWITCH
SUPPLY
DG444/DG445
Improved, Quad, SPST Analog Switches
_______________________________________________________________________________________ 5
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
D
AND UNIPOLAR-SUPPLY VOLTAGE
0
25
50
75
100
125
051015 20
V
D
(V)
r
DS(ON)
(Ω)
DG444/5-4
V+ = 10V
V+ = 15V
V+ = 20V
150
V+ = 5V
ON-RESISTANCE vs. V
D
, UNIPOLAR-
SUPPLY VOLTAGE AND TEMPERATURE
0
25
50
75
100
125
150
r
DS(ON)
(Ω)
04 812
V
D
(V)
DG444/5-7
T
A
= +125°C
T
A
= +25°C
T
A
= -40°C
V+ = 12V
V- = 0V
ON-RESISTANCE vs. V
D
AND
BIPOLAR-SUPPLY VOLTAGE
r
DS(ON)
(Ω)
30
60
90
120
-20 -10 0 10 20
V
D
(V)
0
DG444/5-5
±5V
±10V
±15V
±20V
ON-RESISTANCE vs. V
D
, BIPOLAR-
SUPPLY VOLTAGE AND TEMPERATURE
r
DS(ON)
(Ω)
0
20
40
60
80
100
V
D
(V)
DG444/5-6
T
A
= +125°C
T
A
= -55°C
T
A
= +25°C
V+ = 15V, V- = -15V
-15 0 15
-10
-5
510
SWITCHING TIME vs.
BIPOLAR-SUPPLY VOLTAGE
TIME (ns)
0
40
80
120
160
±5 ±10 ±15 ±20
BIPOLAR-SUPPLY VOLTAGE (V)
DG444/5-8
t
ON
t
OFF
SWITCHING TIME vs.
UNIPOLAR-SUPPLY VOLTAGE
TIME (ns)
0
50
100
150
200
10 15 20 25
UNIPOLAR-SUPPLY VOLTAGE (V)
V- = 0V
DG444/5-9
t
ON
t
OFF
CHARGE INJECTION vs.
V
D
VOLTAGE
Q (pC)
-20
0
20
-15 -10 0 10 15
V
D
(V)
DG444/5-10
V+ = 15V
V- = -15V
C
L
= 1nF
CHARGE INJECTION vs.
V
D
VOLTAGE
Q (pC)
-10
0
051015
V
D
(V)
DG444/5-11
V+ = 12V
V- = 0V
C
L
= 1nF
10
DG444/DG445
Improved, Quad, SPST Analog Switches
6 _______________________________________________________________________________________
t
OFF
0.8 x V
OUT
V
OUT
0.8 x V
OUT
t
f
< 20ns
t
r
< 20ns
50%
0V
0V
+3V
SWITCH
OUTPUT
LOGIC INPUT WAVEFORM IS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
t
ON
SWITCH
INPUT
LOGIC
INPUT
+3V
IN
+5V
V-
-15V
( )
R
L
C
L
V
OUT
S
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
GND
REPEAT TEST FOR CHANNELS 2, 3, AND 4.
V
OUT
= V
D
R
L
R
L
+ r
DS(ON)
LOGIC
INPUT
V
L
+15V
V+
D
DG444
DG445
Figure 2. Switching Time
Applications Information
General Operation
• Switches are open when power is off.
• IN, D, and S should not exceed V+ or V-, even with
the power off.
• Switch leakage is from each analog switch terminal
to V+ or V-, not to other switch terminals.
Operation with Supply Voltages
Other than ±15V
Using supply voltages other than ±15V will reduce the
analog signal range. The DG444/DG445 switches oper-
ate with ±4.5V to ±20V bipolar supplies or with a +10V
to +30V single supply; connect V- to 0V when operating
with a single supply. Also, all device types can operate
with unbalanced supplies such as +24V and -5V. V
L
must be connected to +5V to be TTL compatible, or to
V+ for CMOS-logic level inputs. The Typical Operating
Characteristics graphs show typical on-resistance with
±20V, ±15V, ±10V, and ±5V supplies. (Switching times
increase by a factor of two or more for operation at ±5V.)
Overvoltage Protection
Proper power-supply sequencing is recommended
for all CMOS devices. Do not exceed the absolute
maximum ratings because stresses beyond the list-
ed ratings may cause permanent damage to the
devices. Always sequence V+ on first, followed by
V
L
, V-, and logic inputs. If power-supply sequenc-
ing is not possible, add two small, external signal
diodes in series with supply pins for overvoltage
protection (Figure 1). Adding diodes reduces the
analog signal range to 1V below V+ and 1V above
V-, but low switch resistance and low leakage char-
acteristics are unaffected. Device operation is
unchanged, and the difference between V+ and V-
should not exceed +44V.
V+
D
V-
S
V
g
Figure 1. Overvoltage Protection Using External Blocking Diodes
_____________________Pin Description
PIN
DIP/SO
THIN QFN
NAME
FUNCTION
1, 16, 9, 8 15, 14, 7, 6 IN1–IN4
Logic Control
Inputs
2, 15, 10, 7 16, 13, 8, 5 D1–D4
Drain Outputs
3, 14, 11, 6 1, 12, 9 4 S1–S4
Source Outputs
42V-
Negative-Supply
Voltage Input
53GND Ground
12 10 VL
Logic-Supply
Voltage Input
13 11 V+
Positive-Supply-
Voltage
Input—Connected
to Substrate
—EPPAD
Exposed Pad
Connect Pad to V+
P1-P3P4-P6P7-P9P10-P10

DG445CJ

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IC SWITCH QUAD SPST 16DIP
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