19-4727; Rev 2; 6/99
Improved, Dual, High-Speed Analog Switches
______________________New Features
Maxim's redesigned DG401/DG403/DG405 analog
switches now feature guaranteed low on-resistance
matching between switches (2Ω max) and guaranteed
on-resistance flatness over the signal range (3Ω max).
These low on-resistance switches (20Ω typ) conduct
equally well in either direction and are guaranteed to
have low charge injection (15pC max). The new design
offers lower off leakage current over temperature (less
than 5nA at +85°C).
The DG401/DG403/DG405 are dual, high-speed
switches. The single-pole/single-throw DG401 and
double-pole/single-throw DG405 are normally open
dual switches. The dual, single-pole/double-throw
DG403 has two normally open and two normally closed
switches. Switching times are 150ns max for tON and
100ns max for tOFF, with a maximum power consumption of 35µW. These devices operate from a single
+10V to +30V supply, or bipolar supplies of ±4.5V to
±20V. Maxim's improved DG401/DG403/DG405 are
fabricated with a 44V silicon-gate process.
♦ Plug-In Upgrade for Industry-Standard
DG401/DG403/DG405
♦ Improved rDS(ON) Match Between Channels (2Ω max)
♦ Guaranteed rFLAT(ON) Over Signal Range (3Ω max)
♦ Improved Charge Injection (15pC max)
♦ Improved Off Leakage Current Over Temperature
(<5nA at +85°C)
__________________Existing Features
♦ Low rDS(ON) (30Ω max)
♦ Single-Supply Operation +10V to +30V
Bipolar-Supply Operation ±4.5V to ±20V
♦ Low Power Consumption (35µW max)
♦ Rail-to-Rail Signal Handling Capability
♦ TTL/CMOS-Logic Compatible
______________Ordering Information
________________________Applications
PART
TEMP. RANGE
PIN PACKAGE
Sample-and-Hold Circuits
Test Equipment
DG401CJ
0°C to +70°C
16 Plastic DIP
Guidance and Control Systems
Heads-Up Displays
DG401CY
0°C to +70°C
16 Narrow SO
Communications Systems
PBX, PABX
DG401C/D
0°C to +70°C
Dice*
Battery-Operated Systems
Audio Signal Routing
Military Radios
Ordering Information continued on last page.
*Contact factory for dice specifications.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
D1 1
16 S1
D1 1
N.C. 2
15 IN1
N.C. 3
14 V-
D3 3
N.C. 4
N.C. 5
DG401
N.C. 6
15 IN1
14 V-
13 GND
S3 4
13 GND
S3 4
13 GND
12 V L
S4 5
12 V L
S4 5
9
S2
DG403
D4 6
11 V+
N.C. 7
10 IN2
D2 8
9
S2
DG405
D4 6
DG401
LOGIC
SWITCH
LOGIC
0
1
OFF
ON
0
1
10 IN2
D2 8
9
S2
DIP/SO
DG403
SWITCHES 1, 2 SWITCHES 3, 4
OFF
ON
12 V L
11 V+
N.C. 7
DIP/SO
DIP/SO
LCC packages on last page.
16 S1
D3 3
10 IN2
D2 8
15 IN1
D1 1
N.C. 2
14 V-
11 V+
N.C. 7
16 S1
N.C. 2
ON
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
DG405
LOGIC
SWITCH
0
1
OFF
ON
N.C. = NOT INTERNALLY CONNECTED
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
DG401/DG403/DG405
_______________General Description
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to VV+.......................................................................................44V
GND ...................................................................................25V
VL .................................................(GND - 0.3V) to (V+ + 0.3V)
Digital Inputs, VS, VD (Note 1) .......(V- - 2V) to (V+ + 2V) or 20mA
(whichever occurs first)
Continuous Current (any terminal) ......................................30mA
Continuous Current, S or D .................................................20mA
Peak Current, S or D
(pulsed at 1ms, 10% duty cycle max) ..........................100mA
Continuous Power Dissipation (TA = +70°C)
16-Pin Plastic DIP(derate 10.53mW/°C above +70°C)...842mW
16-Pin Narrow SO (derate 8.70mW/°C above +70°C) ...696mW
16-Pin CERDIP (derate 10.00mW/°C above 70°C) .......800mW
20-Pin LCC (derate 9.09mW/°C above +70°C) ............727mW
Operating Temperature Ranges
DG40_C_ .............................................................0°C to +70°C
DG40_D_ ..........................................................-40°C to +85°C
DG40_A_ ........................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1: Signals on S, D or IN exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum
current rating.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V+ = 15V, V- = -15V, VL = +5V, GND = 0V, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SWITCH
Analog Signal Range
Drain-Source
On-Resistance
SYMBOL
VANALOG (Note 3)
V+ = 13.5V, V- = -13.5V,
IS = -10mA,
rDS(ON) VD = ±10V,
VINH = 2.4V,
VINL = 0.8V
Drain-Source
On-Resistance Match
∆rDS(ON)
Between Channels (Note 4)
On-Resistance Flatness
(Note 4)
CONDITIONS
TA = +25°C
TA = TMIN to TMAX
V+ = 15V, V- = -15V,
IS = -10mA,
VD = ±10V
TA = +25°C
TYP
MAX
UNITS
(Note 2)
V+ = 15V, V- = -15V,
rFLAT(ON) IS = -10mA,
VD = ±5V, 0V
TA = +25°C
C,D
20
A
20
C,D
+15
45
V
30
Ω
55
A
45
0.5
TA = TMIN to TMAX
2
3
TA = TMIN to TMAX
Drain-Off
Leakage Current
(Note 7)
ID(OFF)
V+ = 16.5V, V- = -16.5V, TA = +25°C
VD = ±15.5V,
VS = 15.5V
TA = TMIN to TMAX
Drain-On
Leakage Current
(Note 7)
ID(ON)
or
IS(ON)
V+ = 16.5V, V- = -16.5V, TA = +25°C
VD = ±15.5V,
VS = ±15.5V
TA = TMIN to TMAX
Ω
3
C, D, A
IS(OFF)
±
2
MIN
C, D, A
V+ = 16.5V, V- = -16.5V, TA = +25°C
VD = 15.5V,
VS = ±15.5V,
TA = TMIN to TMAX
Source-Off
Leakage Current
(Note 7)
TEMP.
RANGE
-15
±
DG401/DG403/DG405
Improved, Dual, High-Speed Analog Switches
Ω
6
C, D
A
C, D
A
C, D
A
C, D
A
C, D
A
C, D
A
-0.50
-0.25
-5
-10
-0.50
-0.25
-5
-10
-1.0
-0.4
-10
-20
-0.01
-0.01
-0.01
-0.01
-0.04
-0.04
_______________________________________________________________________________________
0.50
0.25
5
10
0.50
0.25
5
10
1.0
0.4
10
20
nA
nA
nA
Improved, Dual, High-Speed Analog Switches
(V+ = 15V, V- = -15V, VL = +5V, GND = 0V, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.)
CONDITIONS
MIN
TYP MAX
UNITS
(Note 2)
PARAMETER
SYMBOL
Input Current with Input Voltage High
IINH
VIN = 2.4V, all others = 0.8V
-1.0
0.005
1.0
µA
Input Current with Input Voltage Low
IINL
VIN = 0.8V, all others = 2.4V
-1.0
0.005
1.0
µA
±20
V
INPUT
SUPPLY
Power-Supply Range
Positive Supply Current
Negative Supply Current
Logic Supply Current
Ground Current
±4.5
I+
I-
IL
IGND
All channels on or off,
TA = +25°C
V+ = 16.5V, V- = -16.5V,
TA = TMIN to TMAX
VIN = 0V or 5V
-1.0
All channels on or off,
TA = +25°C
V+ = 16.5V, V- = -16.5V,
TA = TMIN to TMAX
VIN = 0V or 5V
-1.0
All channels on or off,
TA = +25°C
V+ = 16.5V, V- = -16.5V,
TA = TMIN to TMAX
VIN = 0V or 5V
-1.0
All channels on or off,
TA = +25°C
V+ = 16.5V, V- = -16.5V,
TA = TMIN to TMAX
VIN = 0V or 5V
-1.0
0.01
1.0
µA
-5.0
5.0
0.01
1.0
µA
-5.0
5.0
0.01
1.0
µA
-5.0
5.0
0.01
1.0
µA
-5.0
5.0
DYNAMIC
Turn-On Time
tON
Figure 2
TA = +25°C
100
150
ns
Turn-Off Time
tOFF
Figure 2
TA = +25°C
60
100
ns
TA = +25°C
Break-Before-Make Delay (Note 3)
tD
DG403 only,
Figure 3
Charge Injection (Note 3)
Q
CL = 1.0nF, VGEN = 0V,
TA = +25°C
RGEN = 0Ω, Figure 4
10
RL = 100Ω, CL = 5pF,
f = 1MHz, Figure 5
72
dB
90
dB
Off Isolation (Note 5)
OIRR
Crosstalk (Note 6)
TA = +25°C
RL = 50Ω, CL = 5pF,
f = 1MHz, Figure 6
TA = +25°C
10
20
ns
15
pC
Source-Off Capacitance
CS(OFF)
f = 1MHz, Figure 7
TA = +25°C
12
pF
Drain-Off Capacitance
CD(OFF)
f = 1MHz, Figure 7
TA = +25°C
12
pF
CD(ON)
f = 1MHz, Figure 8
or CS(ON)
TA = +25°C
39
pF
Channel-On Capacitance
Note 2: This data sheet uses the algebraic convention, where the most negative value is a minimum and the most positive value is a
maximum.
Note 3: Guaranteed by design.
Note 4: ∆rON = ∆rON(max) - ∆rON(min). On-resistance match between channels and flatness are guaranteed only with specified
voltages. Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured at the
extremes of the specified analog signal range.
Note 5: Off isolation = 20log (VS/VD), VD = output, VS = input to off switch.
Note 6: Between any two switches.
Note 7: Leakage parameters IS(OFF), ID(OFF), and ID(ON) are 100% tested at the maximum rated hot temperature and guaranteed by
correlation at +25°C.
_______________________________________________________________________________________
3
DG401/DG403/DG405
ELECTRICAL CHARACTERISTICS (continued)
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
ON-RESISTANCE vs. VD AND
TEMPERATURE (DUAL SUPPLIES)
35
30
A
30
B
25
C
20
100
rDS (ON) (Ω)
35
V- = 0V
120
TA = +125°C
TA = +85°C
TA = +25°C
25
rDS (ON) (Ω)
20
15
V+ = 5V
80
60
TA = -55°C
D
15
V+ = 10V
40
10
V+ = 15V
V+ = 15V, V- = -15V
10
5
-10
0
10
-20
20
-10
10
0
0
20
5
10
15
VD (V)
VD (V)
VD (V)
ON-RESISTANCE vs. VD AND
TEMPERATURE (SINGLE SUPPLY)
OFF LEAKAGE CURRENTS vs.
TEMPERATURE
ON LEAKAGE CURRENTS vs.
TEMPERATURE
100
MAX401-4
70
60
V+ = 16.5V
V- = -16.5V
VD = ±15V
VS = ±15V
10
OFF LEAKAGE (nA)
TA = +125°C
50
TA = +85°C
40
TA = +25°C
30
20
100
MAX401-5
-20
V+ = 20V
20
5
V+ = 16.5V
V- = -16.5V
VD = ±15V
VS = ±15V
10
ON LEAKAGE (nA)
rDS (ON) (Ω)
40
140
1
0.1
0.01
0.001
20
MAX401-6
45
V+ = 5V, V- = -5V
V+ = 10V, V- = -10V
V+ = 15V, V- = -15V
V+ = 20V, V- = -20V
MAX401-2
A:
B:
C:
D:
50
MAX401-1
55
ON-RESISTANCE vs. VD
(SINGLE SUPPLY)
MAX401-3
ON-RESISTANCE vs. VD
(DUAL SUPPLIES)
rDS (ON) (Ω)
1
0.1
0.01
0.001
V+ = 12V, V- = 0V
10
0.0001
0
5
10
15
0.0001
-55
20
125
25
VD (V)
-55
TEMPERATURE (°C)
CHARGE INJECTION vs.
ANALOG VOLTAGE
25
TEMPERATURE (°C)
SUPPLY CURRENT vs.
TEMPERATURE
10
20
1
I+, I-, IL (µA)
40
0
-20
-40
MAX401-8
100
MAX401-7
60
Q (pC)
DG401/DG403/DG405
Improved, Dual, High-Speed Analog Switches
I+ at V+ = 16.5V
0.1
I- at V- = -16.5V
0.01
IL at VL = 5V
0.001
V+ = 15V, V- = -15V
-60
0.0001
-20
-10
0
VD (V)
4
10
20
-55
25
125
TEMPERATURE (°C)
_______________________________________________________________________________________
125
Improved, Dual, High-Speed Analog Switches
DG401
DIP/SO
LCC
NAME
2, 10
D1, D2
2-7
1, 3-9,
11, 16
N.C.
Not internally connected
9, 16
12, 20
S2, S1
Source (Analog Signal)
10, 15
13, 19
11
14
15
VL
13
17
GND
14
18
V-
DG403
Drain (Analog Signal)
IN2, IN1 Digital Logic Inputs
12
Positive Supply-Voltage
Input—connected to
substrate
Logic Supply-Voltage Input
Ground
Negative Supply-Voltage
Input
NAME
LCC
1, 8, 3, 6
2, 10, 4, 8
D1-D4
2, 7
1, 3, 6, 9,
11, 16
N.C.
Not internally connected
16, 9, 4, 5
20, 12,
5, 7,
S1-S4
Source (Analog Signal)
10, 15
13, 19
11
14
V+
Positive Supply-Voltage
Input—connected to
substrate
12
15
VL
Logic Supply-Voltage Input
13
17
GND
14
18
V-
Drain (Analog Signal)
IN2, IN1 Digital Logic Inputs
Ground
Negative Supply-Voltage
Input
NAME
LCC
1, 8, 3, 6
2, 10, 4, 8
D1-D4
2, 7
1, 3, 6, 9,
11, 16
N.C.
Not internally connected
16, 9, 4, 5
20, 12,
5, 7,
S1-S4
Source (Analog Signal)
10, 15
13, 19
IN2, IN1 Digital Logic Inputs
V+
15
VL
Logic Supply-Voltage Input
17
GND
18
V-
12
13
14
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute
maximum ratings because stresses beyond the listed
ratings may cause permanent damage to the devices.
Always sequence V+ on first, followed by VL, V-, and
logic inputs. If power-supply sequencing 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 below V-, without affecting low switch resistance and low leakage
characteristics. Device operation is unchanged, and
the difference between V+ and V- should not exceed
+44V.
V+
Drain (Analog Signal)
Positive Supply-Voltage
Input—connected to
substrate
14
Logic Inputs
These devices operate with a single positive supply or
with bipolar supplies. They maintain TTL compatibility
with supplies anywhere in the ±4.5V to ±20V range as
long as VL = +5V. If VL is connected to V+ or another
supply at voltages other than +5V, the devices will
operate at CMOS-logic-level inputs.
FUNCTION
DIP/SO
11
The DG401/DG403/DG405 switches operate with
±4.5V to ±20V bipolar supplies or with a +10V to +30V
single supply. In either case, analog signals ranging
from V+ to V- can be switched. The Typical Operating
Characteristics graphs illustrate typical analog-signal
and supply-voltage on-resistance variations. The usual
on-resistance temperature coefficient is 0.5%/°C (typ).
FUNCTION
DIP/SO
DG405
Operation with Supply Voltages
Other than ±15V
FUNCTION
1, 8
V+
__________Applications Information
S
D
Vg
V-
Ground
Negative Supply Voltage
Figure 1. Overvoltage Protection Using External Blocking Diodes
_______________________________________________________________________________________
5
DG401/DG403/DG405
_____________________Pin Description
DG401/DG403/DG405
Improved, Dual, High-Speed Analog Switches
______________________________________________Timing Diagrams/Test Circuits
+5V
+3V
LOGIC
INPUT
50%
0V
VL
VD = +10V (for tON)
tOFF
DG401
DG403
DG405
RL = 1000Ω
CL = 35pF
V+
VOUT
S
D
VD = -10V (for tOFF)
VOUT
IN
0.9 x VOUT
SWITCH
OUTPUT
+15V
tr < 20ns
tf < 20ns
LOGIC
INPUT
0V
tON
GND
V-
0V
-15V
0.9 x VOUT
VOUT
REPEAT TEST FOR IN2 AND S2
LOGIC INPUT WAVEFORM IS INVERTED FOR
SWITCHES THAT HAVE THE OPPOSITE LOGIC
SENSE CONTROL.
VOUT = VD
RL
+
L rDS(ON)
(R
FOR LOAD CONDITIONS, SEE Electrical Characteristics.
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
)
Figure 2. Switching Time
LOGIC
INPUT
SWITCH
OUTPUT 2
+15V
VL
V+
DG401
DG403
DG405
+3V
50%
+10V
0V
SWITCH
OUTPUT 1
+5V
VOUT1
+10V
0.9 x VOUT
D
S
D
S
IN
VOUT2
0V
0.9 x VOUT
tD
VOUT2
RL1
CL1
RL2
0V
LOGIC
INPUT
VOUT1
GND
V-
0V
-15V
CL2
RL = 1000Ω
CL = 35pF
tD
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 3. Break-Before-Make Interval
+5V
∆VOUT
VL
RGEN
+15V
V+
S
VOUT
IN
ON
OFF
ON
VGEN
DG401
DG403
DG405
D
GND
V-
0V
-15V
Q = (∆VOUT) (CL)
Figure 4. Charge Injection
6
_______________________________________________________________________________________
VOUT
CL
10nF
Improved, Dual, High-Speed Analog Switches
SIGNAL
GENERATOR
C
DG401
DG403
DG405
D
+15V
+5V
V+
VL
C
SIGNAL
GENERATOR
ANALYZER
1MHz
AUTOMATIC
SYNTHESIZER
TRACKING
SPECTRUM
ANALYZER
0V or 2.4V
IN
ANALYZER
CH A
CH B
FREQUENCY
TESTED
S
C
V-
GND
RL
OFF ISOLATION = 20log
-15V
VS
VD
C = 5pF
100Ω
Figure 5. Off Isolation
SIGNAL
GENERATOR
C
DG401
DG403
DG405
+15V
+5V
V+
VL
D
C
IN1
0V or 2.4V
ANALYZER
CH A
CH B
50Ω
S
IN2
S
0V or 2.4V
D
GND
FREQUENCY
TESTED
SIGNAL
GENERATOR
ANALYZER
1MHz
AUTOMATIC
SYNTHESIZER
TRACKING
SPECTRUM
ANALYZER
C
V-
RL
-15V
100Ω
C = 5pF
Figure 6. Crosstalk
DG401
DG403
DG405
+15V
C
D
V+
+5V
C
VL
C
DG401
DG403
DG405
D
+15V
+5V
V+
VL
C
CAPACITANCE
METER
IN
0V or 2.4V
CAPACITANCE
METER
IN
0V or 2.4V
S
S
GND
V-
C
GND
C
-15V
-15V
Figure 7. Channel-Off Capacitance
V-
Figure 8. Channel-On Capacitance
_______________________________________________________________________________________
7
DG401/DG403/DG405
_________________________________Timing Diagrams/Test Circuits (continued)
-55°C to +125°C
20 LCC**
N.C. 4
DG403CJ
DG403CY
DG403C/D
DG403DJ
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
16 Plastic DIP
16 Narrow SO
Dice*
16 Plastic DIP
N.C. 5
DG403DY
-40°C to +85°C
16 Narrow SO
DG403DK
DG403AK
DG403AZ
DG405CJ
DG405CY
-40°C to +85°C
-55°C to +125°C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
16 CERDIP
16 CERDIP**
20 LCC**
16 Plastic DIP
16 Narrow SO
DG405C/D
DG405DJ
DG405DY
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
Dice*
16 Plastic DIP
16 Narrow SO
DG405DK
-40°C to +85°C
16 CERDIP
DG405AK
-55°C to +125°C
16 CERDIP**
D2 10
S2 12
IN2 13
20 S1
19 IN1
18 V-
S3 5
17 GND
N.C. 6
16 N.C.
DG403
D3
(DG403/DG405)
IN2 13
9
N.C.
IN1
19 IN1
14 V+
S2 12
15 VL
20 S1
S4 7
D4 8
3 N.C.
S1
N.C. 11
D3 4
___________________Chip Topography
D1
1 N.C.
14 V+
2 D1
N.C. 8
N.C. 9
15 VL
D2 10
* Contact factory for dice specifications.
* *Contact factory for availability and processing to MIL-STD-883B.
16 N.C.
N.C. 7
N.C. 11
20 LCC**
17 GND
DG401
N.C. 6
1 N.C.
-55°C to +125°C
18 V-
2 D1
DG405AZ
19 IN1
DG401AZ
TOP VIEW
20 S1
PIN PACKAGE
16 Plastic DIP
16 Narrow SO
16 CERDIP
16 CERDIP**
1 N.C.
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
2 D1
PART
DG401DJ
DG401DY
DG401DK
DG401AK
3 N.C.
____Pin Configurations (continued)
3 N.C.
_Ordering Information (continued)
V-
S3
(DG403/DG405)
GND
S4
(DG403/DG405)
VL
0.102”
(2.59mm)
V+
D4
(DG403/DG405)
D3 4
18 V-
S3 5
17 GND
N.C. 6
16 N.C.
DG405
S4 7
15 VL
D4 8
14 V+
TRANSISTOR COUNT: 66
SUBSTRATE CONNECTED TO V+
LCC
IN2 13
S2 12
S2
D2 10
0.070”
(1.78mm)
N.C. 11
D2
9
IN2
N.C.
DG401/DG403/DG405
Improved, Dual, High-Speed Analog Switches
N.C. = NOT INTERNALLY
CONNECTED
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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