DG300-303

Metal Can

IN2

Top View

S₂

V–

D₂ D₁

V+ (Substrate and Case)

S1

IN₁

NC

GND 1 2 3

4 5 6

7 8 9 10

NC V+

D₁ D₂

NC NC

S₁ S₂

NC

IN₂ IN1

NC

GND V–

Dual-In-Line 1

2 3 4 5 6 7

14 13 12 11 10 9 8 Top View

DG300A DG300A

DG300A/301A/302A/303A

CMOS Analog Switches

Features Benefits Applications

Analog Signal Range:
15 V

Fast Switching—t

Low On-Resistance—r

Single Supply Operation

Latch-up Proof

CMOS Compatible

Full Rail-to-Rail Analog Signal

Low Signal Error

Low Power Dissipation

Low Level Switching Circuits

Programmable Gain Amplifiers

Portable and Battery Powered

Description

The DG300A-DG303A family of monolithic CMOS switches feature three switch configuration options (SPST, SPDT, and DPST) for precision applications in communications, instrumentation and process control, where low leakage switching combined with low power consumption are required.

Designed on the Siliconix PLUS-40 CMOS process, these switches are latch-up proof, and are designed to block up to 30 V peak-to-peak when off. An epitaxial layer prevents latchup.

In the on condition the switches conduct equally well in both directions (with no offset voltage) and minimize error conditions with their low on-resistance.

Featuring low power consumption (3.5 mW typ) these switches are ideal for battery powered applications, without sacrificing switching speed. Designed for break-before-make switching action, these devices are CMOS and quasi TTL compatible. Single supply operation is allowed by connecting the V– rail to 0 V.

Functional Block Diagram and Pin Configuration

Truth Table

Logic Switch

0 OFF

1 ON

Logic “0” 0 8 V Logic “0”  0.8 V Logic 0  0.8 V Logic “1” 4 V Logic “1”  4 V Logic 1  4 V

Updates to this data sheet may be obtained via facsimile by calling Siliconix FaxBack, 1-408-970-5600. Please request FaxBack document #70044.

DG301A

GND V–

Dual-In-Line

NC V+

D₁ D₂

NC NC

S₁ S₂

NC IN NC

NC 1

2 3 4 5 6 7

14 13 12 11 10 9 8 Top View

Metal Can

NC

Top View

S₂

V–

D₂ D₁

V+ (Substrate and Case)

S₁

IN

NC

GND 1 2

3 4

5 6

7 8 9 10

DG302A

NC V+

S3 S4

D₃ D₄

D₁ D₂

S1 S2

IN₁ IN₂

GND V–

Dual-In-Line

1 2 3 4 5 6 7

14 13 12 11 10 9 8 Top View

DG301A

DG303A

S₄

D2

NC

Dual-In-Line

S₃

D₄ D1

S₁

V+

D₃

S₂ 1

2 3 4 5

14 13 12 11 10

DG300A/301A/302A/303A

Functional Block Diagram and Pin Configuration (Cont’d)

Truth Table

Logic SW₁ SW₂

0 OFF ON

1 ON OFF

Logic “0”
0.8 V Logic “1”  4 V Logic 1  4 V

 

  

0 OFF

1 ON

Logic “0”
0.8 V Logic “1”  4 V

Truth Table

Logic SW₁, SW₂ SW₃, SW₄

0 OFF ON

1 ON OFF

Logic “0”
0.8 V Logic “1”  4 V

DG300A/301A/302A/303A

Ordering Information

Temp Range Package Part Number

DG300A

0 to 70_C 14-Pin Plastic DIP DG300ACJ

–25 to 85_C 14-Pin CerDIP DG300ABK

–25 to 85_C

10-Pin Metal Can DG300ABA DG300AAK 14-Pin CerDIP DG300AAK/883

–55 to 125_C JM38510/11601BCA

–55 to 125_C

14-Pin Sidebraze JM38510/11601BCC 10-Pin Metal Can DG300AAA/883 10-Pin Metal Can

JM38510/11601BIA DG301A

0 to 70_C 14-Pin Plastic DIP DG301ACJ

–25 to 85_C 14-Pin CerDIP DG301ABK

–25 to 85_C

10-Pin Metal Can DG301ABA 14-Pin CerDIP DG301AAK/883 14-Pin CerDIP

JM38510/11602BCA –55 to 125_C 14-Pin Sidebraze JM38510/11602BCC –55 to 125_C

DG301AAA 10-Pin Metal Can DG301AAA/883

JM38510/11602BIA DG302A

0 to 70_C 14-Pin Plastic DIP DG302ACJ DG302AAK –55 to 125_C 14-Pin CerDIP DG302AAK/883 –55 to 125_C

JM38510/11603BCA 14-Pin Sidebraze JM38510/11603BCC DG303A

0 to 70_C 14-Pin Plastic DIP DG303ACJ

–25 to 85_C 14-Pin CerDIP DG303ABK

–45 to 85_C 14-SOIC DG303ADY

DG303AAK

–55 to 125_C 14-Pin CerDIP DG303AAK/883

–55 to 125_C

JM38510/11604BCA 14-Pin Sidebraze JM38510/11604BCC

DG300A/301A/302A/303A

Absolute Maximum Ratings

Voltages Referenced to V–

V+ . . . 44 V GND. . . 25 V Digital Inputs^a, V_S, V_D . . . (V–) –2 V to (V+) +2V or 30 mA, whichever occurs first Current, Any Terminal. . . 30 mA Continuous Current, S or D

(Pulsed at 1 ms, 10% duty cycle max). . . 100 mA Storage Temperature (A & B Suffix). . . –65 to 150_C (C Suffix). . . –65 to 125_C

Power Dissipationb

14-Pin Plastic DIP^c . . . 470 mW 14-Pin CerDIP^d . . . 825 mW 10-Pin Metal Can^e . . . 450 mW Notes:

a. Signals on S_X, D_X, or IN_X exceeding V+ or V– will be clamped by internal diodes. Limit forward diode current to maximum current ratings.

b. All leads welded or soldered to PC Board.

c. Derate 6.5 mW/_C above 25_C d. Derate 11 mW/_C above 75_C e. Derate 6 mW/_C above 75_C

Schematic Diagram (Typical Channel)

Figure 1.

Level Shift/

Drive VIN

S V+

GND

V–

D V–

V+

DG300A/301A/302A/303A

Specifications ^a

Conditions Unless Other- wise Specified

V 15 V V 15 V

A Suffix –55 to 125_C

B/C Suffix

Parameter Symbol

V+ = 15 V, V– = –15 V

VIN = 0.8 V or VIN = 4 V^f Temp^b Typ^c Min^d Max^d Min^d Max^d Unit Analog Switch

Analog Signal Range^e V_ANALOG Full –15 15 –15 15 V

Drain-Source On-Resistance r_DS(on) V_D =
10 V, IS = –10 mA Room Full

30 50

75

50

75 W

Source Off Leakage Current I_S(off)

V_S=
14 V VD=14 V

Room

Hot
0.1 –1

–100 1 100

–5 –100

5 100 Drain Off Leakage Current I_D(off)

V_S =
14 V, VD = 14 V

Room Hot

0.1 –1 –100

1 100

–5 –100

5

100 nA

Drain On Leakage Current ID(on) VD = VS =
14 V Room Hot

0.1 –1 –100

1 100

–5 –100

5 100 Digital Control

Input Current with

I V l Hi h I_INH

VIN = 5 V Room

Full

–0.001 –1 –1

–1 p

Input Voltage High I_INH

V_IN = 15 V Room

Full

0.001 1

1

1 mA

Input Current with

Input Voltage Low IINL VIN = 0 V Room

Full

–0.001 –1 –1

–1

Dynamic Characteristics

Turn-On Time t_ON

See Figure 2 Room 150 300

Turn-Off Time t_OFF See Figure 2

Room 130 250

ns Break-Before-Make Time tOPEN DG301A/303A Only

Figure 3 Room 50

ns

Charge Injection Q CL = 1 nF, Rgen = 0 W

V_gen = 0 V, Figure 4 Room 8 pC

Source-Off Capacitance C_S(off) Room 14

Drain-Off Capacitance CD(off) V_S, V_D = 0 V, f = 1 MHz Room 14

Channel-On Capacitance C_D(on) Room 40 pF

Input Capacitance C_in f = 1 MHz V_IN = 0 V Room 6

Input Capacitance C_in f = 1 MHz

V_IN = 15 V Room 7

Off-Isolation OIRR V_IN = 0 V, R_L = 1 kW

V 1 V f 500 kH

Room 62

Crosstalk (Channel-to-Channel) X_TALK dB

IN , _L

V_S = 1 V_rms, f = 500 kHz Room 74 dB

Power Supplies

Positive Supply Current I+

VIN = 4 V (One Input) All O h 0 V

Room Full

0.23 0.5

1

1 mA

Negative Supply Current I–

IN ( p )

All Others = 0 V Room Full

–0.001 –10 –100

–100

Positive Supply Current I+

V_IN= 0 8 V (All Inputs)

Room Full

0.001 10

100

100 mA

Negative Supply Current I–

V_IN = 0.8 V (All Inputs)

Room Full

–0.001 –10 –100

–100

Notes:

a. Refer to PROCESS OPTION FLOWCHART.

b. Room = 25_C, Full = as determined by the operating temperature suffix.

c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.

d. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.

e. Guaranteed by design, not subject to production test.

f. VIN = input voltage to perform proper function.

DG300A/301A/302A/303A

Typical Characteristics

r_DS(on) vs. V_D and Power Supply

Charge Injection vs. Analog Voltage

Switching Time and Break-Before-Make Time vs. Positive Supply Voltage

r_DS(on) vs. V_D and Temperature

r_DS(on) vs. V_D and Power Supply Voltage

rDS(on)– Drain-Source On-Resistance ()

DS(on)– Drain-Source On-Resistance ()

rDS(on)– Drain-Source On-Resistance ()
Q (pC) (ns)tON,tOFF

V_D – Drain Voltage (V) V_D – Drain Voltage (V)

VD – Drain Voltage (V) V+ – Positive Supply (V)

90

–25 –15 –5 5 15 25

70

50

30

10

5 V TA = 25C

60

–15 –10 –5 0 5 10 15

50

40

30

20

10

V+ = 15 V V– = –15 V

0 5 10 15 20

20

V– = 0 V TA = 25C

50

40

30

20

10

V+ = 15 V V– = –15 V C_L = 1 nF

500

0 5 10 15

400

300

200

100

0

DG301/303 Only t_OPEN t_OFF

t_ON

V– = –15 V TA = 25_C V_INH = 4 V V_INL = 0 V T_A = 125_C

T_A = 25_C

T_A = –55_C

8 V

10 V

12 V

15 V

20 V

40 60 80 100

7.5 V

10 V

15 V

20 V

Input Switching Threshold vs. Positive Supply Voltage

(V)TV 5

4

3

2

1

V– = –15 V T_A = 25_C

DG300A/301A/302A/303A

Typical Characteristics (Cont’d)

10

Supply Current vs. Temperature

Leakage vs. Temperature

Switching Time vs. Power Supply Voltage

Off Isolation and Crosstalk vs. Frequency

Supply Curents vs. Switching Frequency

Temperature (_C) f – Frequency (Hz)

f – Frequency (Hz) Temperature (_C)

Supply Voltage (V)

I+, I– (mA) (dB)

I+, I– (mA) IS

Time (ns)

–55 –35 –15 5 25 45 65 85 105 125

500

400

300

200

100

0

–100

I+

I–

–55 –35 –15 5 25 45 65 85 105 125

V+ = 15 V V– = –15 V V_S, V_D =
14 V

10 pA

ID(on)

I_D(off) or I_S(off) 100 pA

1 nA 10 nA 100 nA –120

–20

10 k 100 k 1 M 10 M

V+ = +15 V V– = –15 V RL= 50 W

Crosstalk

Off Isolation –100

–80

–60

–40

15

0

+I –I V+ = 15 V

V– = –15 V

5 10

1 k 10 k 100 k 1 M

400 350 300 250 200 150 100 50 0

V+ = 15 V V– = –15 V

tOFF

t_ON

, ID

12
14
16
18
20
22

Switching Time vs. Temperature

Temperature (_C) –55

400 350 300 250 200 150 100 50

–35 –15 5 25 45 65 85 105 125

0

t_OFF t_ON V+ = 15 V

V– = –15 V VS = 3 V

Time (ns)

V+ = 15 V V– = –15 V

VIN = 4 V (One Input) (All Other = 0 V)

DG300A/301A/302A/303A

Test Circuits

Figure 2. Switching Time V_S = 3 V

RL

R_L + r_DS(on) VO = VS

C_L (includes fixture and stray capacitance) V–

V+

IN S

CL

33 pF D

5 V

RL

300 W

VO

–15 V GND

+15 V

50%

90%

0 V 0 V

10%

Logic Input

Switch Output

V_S

tON tOFF

Logic “1” = Switch On

Figure 3. Break-Before-Make SPDT (DG301A, DG303A) 0 V

50%

50%

50%

0 V 0 V Logic

Input

Switch Output Switch Output

Logic “1” = Switch On V_INH

V_S1

V_S2 VO1

V_O2

t_BBM V_O1

S₂ S₁

D₂

R_L2 300 W C_L2

33 pF V+

VO2

V_S2 = 3 V

IN V_S1 = 3 V

R_L1 300 W C_L1

33 pF

CL (includes fixture and stray capacitance) V–

D₁

–15 V GND

+15 V

ON OFF ON

IN_X V_O

DVO

C_L 3 V 1 nF

V–

VO

GND R_g V+

S

Vg

D IN

+15 V

DG300A/301A/302A/303A

Application Hints ^a

V+

Positive Supply Voltage

(V)

V–

Negative Supply Voltage

(V)

GND Voltage

(V)

V_IN Logic Input

Voltage V_INH(min)/V_INL(max)

(V)

V_S or V_D Analog Voltage

Range (V) 15

20 15

–15 –20 0

0 0 0

4/0.8 4/0.8 4/0.8

–15 to 15 –20 to 20 0 to 15 Note:

a. Application Hints are for DESIGN AID ONLY, not guaranteed and not subject to production testing.

Applications

The DG300A series of analog switches will switch positive analog signals while using a single positive supply. This facilitates their use in applications where only one supply is available. The trade-offs of using single supplies are:

1) Increased r

; 2) slower switching speed. The analog voltage should not go above or below the supply voltages which in single operation are V+ and 0 V. (See Input Switching Threshold vs. Positive Supply Voltage Curve.)

+15 V

+15 V

+15 V

DG301A

TTL Input +5 V

10 kW 10 kW 5 kW

5 kW

100 kW 10 mF

50 kW

VOUT

Figure 5. Single Supply Op Amp Switching

DG300A/301A/302A/303A

Applications (Cont’d)

Diff. IN B

+15 V +15 V

Diff. IN A

DG301A DG302A

GND +15 V –15 V –15 V

+15 V

–15 V CMOS Logic

Input Select High = Diff. IN B

CMOS Logic Gain Select High = AV = 101

R₁

16 k
Ri1

1.5 k

R₂ 75 k
75 k

R₂

75 k
R₄

R₆ 75 k

V_OUT

75 k
R5

67 k
R7

50 k
V_OSNULL

Voltage gain of the instrumentation amplifier is:

AV= 1 + 2R2 (In the circuit shown, AV1= 10.4, AV2= 101) R1

Figure 6. Low Power Instrumentation Amplifier with Digitally Selectable Inputs and Gain +

–