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19-4727; Rev 2; 6/99
Improved, Dual, High-Speed Analog Switches
_______________General Description
Maxim's redesigned DG401/DG403/DG405 analog switches now feature guaranteed low on-resistance matching between switches (2 max) and guaranteed on-resistance flatness over the signal range (3 max). These low on-resistance switches (20 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 +85C). 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 35W. 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.
______________________New Features
o Plug-In Upgrade for Industry-Standard DG401/DG403/DG405 o Improved rDS(ON) Match Between Channels (2 max) o Guaranteed rFLAT(ON) Over Signal Range (3 max) o Improved Charge Injection (15pC max) o Improved Off Leakage Current Over Temperature (<5nA at +85C)
DG401/DG403/DG405
__________________Existing Features
o Low rDS(ON) (30 max) o Single-Supply Operation +10V to +30V Bipolar-Supply Operation 4.5V to 20V o Low Power Consumption (35W max) o Rail-to-Rail Signal Handling Capability o TTL/CMOS-Logic Compatible
______________Ordering Information
PART DG401CJ DG401CY DG401C/D TEMP. RANGE 0C to +70C 0C to +70C 0C to +70C PIN PACKAGE 16 Plastic DIP 16 Narrow SO Dice*
________________________Applications
Sample-and-Hold Circuits Guidance and Control Systems Communications Systems Battery-Operated Systems Military Radios Test Equipment Heads-Up Displays PBX, PABX Audio Signal Routing
Ordering Information continued on last page. *Contact factory for dice specifications.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
D1 1 N.C. 2 N.C. 3 N.C. 4 N.C. 5 N.C. 6 N.C. 7 D2 8 16 S1 15 IN1 14 V13 GND D1 1 N.C. 2 D3 3 S3 4 S4 5 D4 6 N.C. 7 D2 8 16 S1 15 IN1 14 V13 GND D1 1 N.C. 2 D3 3 S3 4 S4 5 D4 6 N.C. 7 D2 8 16 S1 15 IN1 14 V13 GND
DG401
12 V L 11 V+ 10 IN2 9 S2
DG403
12 V L 11 V+ 10 IN2 9 S2
DG405
12 V L 11 V+ 10 IN2 9 S2
DIP/SO
DG401 LOGIC 0 1 SWITCH OFF ON LOGIC 0 1
DIP/SO
DG403 SWITCHES 1, 2 SWITCHES 3, 4 OFF ON ON OFF
DIP/SO
DG405 LOGIC 0 1 SWITCH OFF ON
LCC packages on last page.
SWITCHES SHOWN FOR LOGIC "0" INPUT
N.C. = NOT INTERNALLY CONNECTED 1
________________________________________________________________ Maxim Integrated Products
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.
Improved, Dual, High-Speed Analog Switches DG401/DG403/DG405
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 = +70C) 16-Pin Plastic DIP(derate 10.53mW/C above +70C)...842mW 16-Pin Narrow SO (derate 8.70mW/C above +70C) ...696mW 16-Pin CERDIP (derate 10.00mW/C above 70C) .......800mW 20-Pin LCC (derate 9.09mW/C above +70C) ............727mW Operating Temperature Ranges DG40_C_ .............................................................0C to +70C DG40_D_ ..........................................................-40C to +85C DG40_A_ ........................................................-55C to +125C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10sec) .............................+300C
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 CONDITIONS TEMP. RANGE MIN TYP MAX UNITS (Note 2) +15 45 30 55 45 0.5 C, D, A TA = TMIN to TMAX TA = +25C C, D, A TA = TMIN to TMAX 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 6 0.50 0.25 5 10 0.50 0.25 5 10 1.0 0.4 10 20 3 3 2 V
VANALOG (Note 3) V+ = 13.5V, V- = -13.5V, IS = -10mA, rDS(ON) VD = 10V, VINH = 2.4V, VINL = 0.8V V+ = 15V, V- = -15V, IS = -10mA, VD = 10V
-15 TA = +25C TA = TMIN to TMAX TA = +25C C,D A C,D A 20 20
Drain-Source On-Resistance Match rDS(ON) Between Channels (Note 4) On-Resistance Flatness (Note 4) Source-Off Leakage Current (Note 7) Drain-Off Leakage Current (Note 7) Drain-On Leakage Current (Note 7)
V+ = 15V, V- = -15V, rFLAT(ON) IS = -10mA, VD = 5V, 0V
IS(OFF)
V+ = 16.5V, V- = -16.5V, TA = +25C VD = 15.5V, VS = 15.5V, TA = TMIN to TMAX V+ = 16.5V, V- = -16.5V, TA = +25C VD = 15.5V, VS = 15.5V TA = TMIN to TMAX V+ = 16.5V, V- = -16.5V, TA = +25C VD = 15.5V, VS = 15.5V TA = TMIN to TMAX
nA
ID(OFF)
-0.01 -0.01
nA
ID(ON) or IS(ON)
-0.04 -0.04
nA
2
_______________________________________________________________________________________
Improved, Dual, High-Speed Analog Switches
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, V- = -15V, VL = +5V, GND = 0V, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER INPUT Input Current with Input Voltage High Input Current with Input Voltage Low SUPPLY Power-Supply Range Positive Supply Current I+ All channels on or off, TA = +25C V+ = 16.5V, V- = -16.5V, TA = TMIN to TMAX VIN = 0V or 5V All channels on or off, TA = +25C V+ = 16.5V, V- = -16.5V, TA = TMIN to TMAX VIN = 0V or 5V All channels on or off, TA = +25C V+ = 16.5V, V- = -16.5V, TA = TMIN to TMAX VIN = 0V or 5V All channels on or off, TA = +25C V+ = 16.5V, V- = -16.5V, TA = TMIN to TMAX VIN = 0V or 5V Figure 2 Figure 2 DG403 only, Figure 3 TA = +25C TA = +25C TA = +25C 10 4.5 -1.0 -5.0 -1.0 -5.0 -1.0 -5.0 -1.0 -5.0 0.01 0.01 0.01 0.01 20 1.0 A 5.0 1.0 A 5.0 1.0 A 5.0 1.0 A 5.0 V IINH IINL VIN = 2.4V, all others = 0.8V VIN = 0.8V, all others = 2.4V -1.0 -1.0 0.005 0.005 1.0 1.0 A A SYMBOL CONDITIONS MIN TYP MAX UNITS (Note 2)
DG401/DG403/DG405
Negative Supply Current
I-
Logic Supply Current
IL
Ground Current DYNAMIC Turn-On Time Turn-Off Time Break-Before-Make Delay (Note 3) Charge Injection (Note 3) Off Isolation (Note 5) Crosstalk (Note 6) Source-Off Capacitance Drain-Off Capacitance Channel-On Capacitance
IGND
tON tOFF tD Q OIRR
100 60 20 10 72 90 12 12 39
150 100
ns ns ns
CL = 1.0nF, VGEN = 0V, TA = +25C RGEN = 0, Figure 4 RL = 100, CL = 5pF, f = 1MHz, Figure 5 RL = 50, CL = 5pF, f = 1MHz, Figure 6 TA = +25C TA = +25C TA = +25C TA = +25C TA = +25C
15
pC dB dB pF pF pF
CS(OFF) CD(OFF)
f = 1MHz, Figure 7 f = 1MHz, Figure 7
CD(ON) f = 1MHz, Figure 8 or CS(ON)
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 +25C. _______________________________________________________________________________________ 3
Improved, Dual, High-Speed Analog Switches DG401/DG403/DG405
__________________________________________Typical Operating Characteristics
(TA = +25C, unless otherwise noted.)
ON-RESISTANCE vs. VD (DUAL SUPPLIES)
50 45 40 rDS (ON) () 35 30 25 20 15 10 5 -20 -10 0 VD (V) 10 20 5 -20 -10 0 VD (V) 10 20 C D 10 V+ = 15V, V- = -15V 20 0 5 10 VD (V) 15 20 40 B rDS (ON) () A: B: C: D: V+ = 5V, V- = -5V V+ = 10V, V- = -10V V+ = 15V, V- = -15V V+ = 20V, V- = -20V
MAX401-1
ON-RESISTANCE vs. VD AND TEMPERATURE (DUAL SUPPLIES)
MAX401-2
ON-RESISTANCE vs. VD (SINGLE SUPPLY)
V- = 0V 120 100 rDS (ON) () 80 60 V+ = 10V V+ = 15V V+ = 20V
MAX401-3
55
35 30 25 20 15 TA = -55C TA = +125C TA = +85C TA = +25C
140
A
V+ = 5V
ON-RESISTANCE vs. VD AND TEMPERATURE (SINGLE SUPPLY)
MAX401-4
OFF LEAKAGE CURRENTS vs. TEMPERATURE
MAX401-5
ON LEAKAGE CURRENTS vs. TEMPERATURE
V+ = 16.5V V- = -16.5V VD = 15V VS = 15V
MAX401-6
70 60 TA = +125C
100 10 OFF LEAKAGE (nA) 1 0.1 0.01 V+ = 16.5V V- = -16.5V VD = 15V VS = 15V
100 10 ON LEAKAGE (nA) 1 0.1 0.01
50 rDS (ON) () 40 30 20 V+ = 12V, V- = 0V 10 0 5 10 VD (V)
TA = +85C TA = +25C
0.001 0.0001 15 20 -55 25 TEMPERATURE (C) 125
0.001 0.0001 -55 25 TEMPERATURE (C) 125
CHARGE INJECTION vs. ANALOG VOLTAGE
MAX401-7
SUPPLY CURRENT vs. TEMPERATURE
MAX401-8
60 40 20 Q (pC) 0 -20 -40 V+ = 15V, V- = -15V -60 -20 -10 0 VD (V) 10
100 10 1 0.1 0.01 0.001 0.0001
I+, I-, IL (A)
I+ at V+ = 16.5V I- at V- = -16.5V IL at VL = 5V
20
-55
25 TEMPERATURE (C)
125
4
_______________________________________________________________________________________
Improved, Dual, High-Speed Analog Switches
_____________________Pin Description
DG401 DIP/SO LCC 1, 8 2-7 9, 16 10, 15 11 12 13 14 DG403 DIP/SO 1, 8, 3, 6 2, 7 16, 9, 4, 5 10, 15 11 12 13 14 DG405 DIP/SO 1, 8, 3, 6 2, 7 16, 9, 4, 5 10, 15 11 12 13 14 LCC 2, 10, 4, 8 1, 3, 6, 9, 11, 16 20, 12, 5, 7, 13, 19 14 15 17 18 LCC 2, 10, 4, 8 1, 3, 6, 9, 11, 16 20, 12, 5, 7, 13, 19 14 15 17 18 2, 10 1, 3-9, 11, 16 12, 20 13, 19 14 15 17 18 NAME D1, D2 N.C. S2, S1 FUNCTION Drain (Analog Signal) Not internally connected Source (Analog Signal) Positive Supply-Voltage Input--connected to substrate Logic Supply-Voltage Input Ground Negative Supply-Voltage Input FUNCTION Drain (Analog Signal) Not internally connected Source (Analog Signal)
__________Applications Information
Operation with Supply Voltages Other than 15V
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).
DG401/DG403/DG405
IN2, IN1 Digital Logic Inputs V+ VL GND VNAME D1-D4 N.C. S1-S4
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.
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+
IN2, IN1 Digital Logic Inputs V+ VL GND VNAME D1-D4 N.C. S1-S4 Positive Supply-Voltage Input--connected to substrate Logic Supply-Voltage Input Ground Negative Supply-Voltage Input FUNCTION Drain (Analog Signal) Not internally connected Source (Analog Signal)
S
D
IN2, IN1 Digital Logic Inputs V+ VL GND VPositive Supply-Voltage Input--connected to substrate Logic Supply-Voltage Input Ground Negative Supply Voltage
Vg
V-
Figure 1. Overvoltage Protection Using External Blocking Diodes
_______________________________________________________________________________________
5
Improved, Dual, High-Speed Analog Switches DG401/DG403/DG405
______________________________________________Timing Diagrams/Test Circuits
LOGIC INPUT +3V 50% 0V tOFF VOUT 0.9 x VOUT SWITCH OUTPUT 0V tON VOUT 0.9 x VOUT LOGIC INPUT +5V tr < 20ns tf < 20ns VD = +10V (for tON) VD = -10V (for tOFF) IN GND VVL D V+ S +15V RL = 1000 CL = 35pF VOUT
DG401 DG403 DG405
0V
-15V VOUT = VD
REPEAT TEST FOR IN2 AND S2 LOGIC INPUT WAVEFORM IS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE CONTROL.
(R
FOR LOAD CONDITIONS, SEE Electrical Characteristics. CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
RL + rDS(ON) L
)
Figure 2. Switching Time
+5V LOGIC INPUT +3V 50% 0V SWITCH OUTPUT 1 VOUT1 0V VOUT2 0V tD tD 0.9 x VOUT LOGIC INPUT GND 0.9 x VOUT +10V +10V VL D D IN
+15V
V+ S S RL2 VCL2 VOUT2 RL1
DG401 DG403 DG405
VOUT1
CL1
SWITCH OUTPUT 2
0V
-15V
RL = 1000 CL = 35pF
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
Figure 3. Break-Before-Make Interval
+5V VOUT VOUT IN ON OFF ON VGEN +15V
RGEN S
VL
V+ D
DG401 DG403 DG405
VOUT CL 10nF
GND
V-
0V Q = (VOUT) (CL)
-15V
Figure 4. Charge Injection 6 _______________________________________________________________________________________
Improved, Dual, High-Speed Analog Switches
_________________________________Timing Diagrams/Test Circuits (continued)
DG401 DG403 DG405
C +15V +5V C
DG401/DG403/DG405
SIGNAL GENERATOR
D
V+
VL FREQUENCY TESTED IN 0V or 2.4V 1MHz SIGNAL GENERATOR AUTOMATIC SYNTHESIZER ANALYZER TRACKING SPECTRUM ANALYZER
ANALYZER CH A CH B
S GND RL -15V 100 C = 5pF VC OFF ISOLATION = 20log VS VD
Figure 5. Off Isolation
SIGNAL GENERATOR
DG401 DG403 DG405
C
+15V
+5V
C
D
V+
VL
S
50
0V or 2.4V ANALYZER CH A CH B RL
IN1
IN2 D GND VC
0V or 2.4V
FREQUENCY TESTED 1MHz
SIGNAL GENERATOR AUTOMATIC SYNTHESIZER
ANALYZER TRACKING SPECTRUM ANALYZER
S
-15V 100 C = 5pF
Figure 6. Crosstalk
DG401 DG403 DG405
CAPACITANCE METER
C
+15V
+5V
C
C
+15V
+5V
C
D
V+
VL
DG401 DG403 DG405
D
V+
VL
IN S GND V-
0V or 2.4V
CAPACITANCE METER S
IN
0V or 2.4V
C
GND
V-
C
-15V
-15V
Figure 7. Channel-Off Capacitance
Figure 8. Channel-On Capacitance 7
_______________________________________________________________________________________
Improved, Dual, High-Speed Analog Switches DG401/DG403/DG405
_Ordering Information (continued)
PART DG401DJ DG401DY DG401DK DG401AK DG401AZ DG403CJ DG403CY DG403C/D DG403DJ DG403DY DG403DK DG403AK DG403AZ DG405CJ DG405CY DG405C/D DG405DJ DG405DY DG405DK DG405AK DG405AZ TEMP. RANGE -40C to +85C -40C to +85C -40C to +85C -55C to +125C -55C to +125C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C -55C to +125C 0C to +70C 0C to +70C 0C to +70C -40C to +85C -40C to +85C -40C to +85C -55C to +125C -55C to +125C PIN PACKAGE 16 Plastic DIP 16 Narrow SO 16 CERDIP 16 CERDIP** 20 LCC** 16 Plastic DIP 16 Narrow SO Dice* 16 Plastic DIP 16 Narrow SO 16 CERDIP 16 CERDIP** 20 LCC** 16 Plastic DIP 16 Narrow SO Dice* 16 Plastic DIP 16 Narrow SO 16 CERDIP 16 CERDIP** 20 LCC**
D2 10 N.C. 11 S2 12 N.C. 9 IN2 13
____Pin Configurations (continued)
1 N.C. 3 N.C.
TOP VIEW
N.C. 4 N.C. 5 N.C. 6 N.C. 7 N.C. 8
19 IN1
2 D1
20 S1
18 V17 GND
DG401
16 N.C. 15 VL 14 V+
1 N.C.
3 N.C.
D3 4 S3 5 N.C. 6 S4 7
19 IN1
2 D1
20 S1
18 V17 GND
DG403
16 N.C. 15 VL 14 V+
* Contact factory for dice specifications. * *Contact factory for availability and processing to MIL-STD-883B.
D4 8
D2 10
N.C. 11
S2 12
D1
S1
IN1
N.C.
1 N.C.
3 N.C.
D3 (DG403/DG405) S3 (DG403/DG405) S4 (DG403/DG405) D4 (DG403/DG405) VGND VL V+ 0.102" (2.59mm)
D3 4 S3 5 N.C. 6 S4 7 D4 8
19 IN1
2 D1
20 S1
IN2 13
___________________Chip Topography
9
18 V17 GND
DG405
16 N.C. 15 VL 14 V+
IN2
D2 10 N.C. 11 S2 12
D2
0.070" (1.78mm)
S2
N.C.
IN2 13
9
TRANSISTOR COUNT: 66 SUBSTRATE CONNECTED TO V+
LCC
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.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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