Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - analogue switches SOIC 8 N

_______________General Description

Maxim’s redesigned DG417/DG418/DG419 precision,

CMOS, monolithic analog switches now feature guar-

anteed on-resistance matching (3Ω max) between

switches and guaranteed on-resistance flatness over

the signal range (4Ω max). These switches conduct

equally well in either direction and guarantee low

charge injection, low power consumption, and an ESD

tolerance of 2000V minimum per Method 3015.7. The

new design offers low off-leakage current over temper-

ature (less than 5nA at +85°C).

The DG417/DG418 are single-pole/single-throw (SPST)

switches. The DG417 is normally closed, and the

DG418 is normally open. The DG419 is single-

pole/double-throw (SPDT) with one normally closed

switch and one normally open switch. Switching times

are less than 175ns max for t

and less than 145ns

max for t

OFF

. Operation is from a single +10V to +30V

supply, or bipolar ±4.5V to ±20V supplies. The

improved DG417/DG418/DG419 are fabricated with a

44V silicon-gate process.

________________________Applications

Sample-and-Hold Circuits Communications Systems

Test Equipment Battery-Operated Systems

Modems Fax Machines

Guidance and Control Systems PBX, PABX

Audio Signal Routing Military Radios

______________________New Features

♦ Plug-In Upgrades for Industry-Standard

DG417/DG418/DG419

♦ Improved R

DS(ON)

Match Between Channels

(3Ω max, DG419 only)

♦ Guaranteed R

FLAT(ON)

Over Signal Range (4Ω max)

♦ Improved Charge Injection (10pC max)

♦ Improved Off-Leakage Current Over Temperature

(<5nA at +85°C)

♦ Withstand Electrostatic Discharge (2000V min)

per Method 3015.7

__________________Existing Features

♦ Low R

DS(ON)

(35Ω max)

♦ Single-Supply Operation +10V to +30V

Bipolar-Supply Operation ±4.5V to ±20V

♦ Low Power Consumption (35µW max)

♦ Rail-to-Rail Signal Handling

♦ TTL/CMOS-Logic Compatible

DG417/DG418/DG419

Improved, SPST/SPDT Analog Switches

________________________________________________________________

Maxim Integrated Products

TOP VIEW

DG418

DIP/SO

V-

V+

GND

N.C.

V+

GND

N.C.

DG417

DIP/SO

V-

VLV+

GND

DG419

DIP/SO

LOGIC SWITCH

OFF

SWITCHES SHOWN FOR LOGIC "0" INPUT

LOGIC SWITCH

OFF

LOGIC SWITCH 1

OFF

SWITCH 2

OFF

DG417 DG418 DG419

N.C. = NO INTERNAL CONNECTION

_____________________Pin Configurations/Functional Diagrams/Truth Tables

19-0114; Rev 2; 12/96

PART

DG417CJ

DG417CY

DG417C/D 0°C to +70°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

8 Plastic DIP

8 SO

Dice*

______________Ordering Information

Ordering Information continued at end of data sheet.

* Contact factory for dice specifications.

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

DG417DJ

DG417DY -40°C to +85°C

-40°C to +85°C 8 Plastic DIP

8 SO

Summary of content (12 pages)

PAGE 1
9-0114; Rev 2; 12/96 Improved, SPST/SPDT Analog Switches ______________________New Features ♦ Plug-In Upgrades for Industry-Standard DG417/DG418/DG419 ♦ Improved RDS(ON) Match Between Channels (3Ω max, DG419 only) ♦ Guaranteed RFLAT(ON) Over Signal Range (4Ω max) ♦ Improved Charge Injection (10pC max) ♦ Improved Off-Leakage Current Over Temperature (<5nA at +85°C) ♦ Withstand Electrostatic Discharge (2000V min) per Method 3015.
PAGE 2
DG417/DG418/DG419 Improved, SPST/SPDT Analog Switches 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 30mA (whichever occurs first) Continuous Current (any terminal) (Note 1) ....
PAGE 3
Improved, SPST/SPDT Analog Switches DG417/DG418/DG419 ELECTRICAL CHARACTERISTICS—Dual Supplies (continued) (V+ = +15V, V- = -15V, VL = 5V, GND = 0V, VINL = 0.8V, VINH = 2.4V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP (Note 2) MAX UNITS LOGIC INPUT Logic Input Current with Input Voltage High IINH VIN = 2.4V -0.5 0.005 0.5 µA Logic Input Current with Input Voltage Low IINL VIN = 0.8V -0.5 0.005 0.
PAGE 4
DG417/DG418/DG419 Improved, SPST/SPDT Analog Switches ELECTRICAL CHARACTERISTICS—Single Supply (V+ = +12V, V- = 0V, VL = 5V, GND = 0V, VINH = 2.4V, VINL = 0.8V, TA = +25°C, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS SWITCH Analog Signal Range VANALOG (Note 3) Drain-Source On-Resistance MIN TYP (Note 2) 0 MAX UNITS 12 V 100 Ω RDS(ON) IS = -10mA, VD = 3.8V, V+ = 10.
PAGE 5
Improved, SPST/SPDT Analog Switches ON-RESISTANCE vs. VD AND TEMPERATURE 25 B C 20 25 TA = +85°C 20 15 V+ = 5V 80 60 10 V+ = 10V 40 TA = +25°C 10 V+ = 15V V+ = 20V 5 5 0 -10 -10 10 0 0 20 10 15 VD (V) VD (V) ON-RESISTANCE vs. VD AND TEMPERATURE OFF-LEAKAGE CURRENT vs. TEMPERATURE ON-LEAKAGE CURRENT vs. TEMPERATURE TA = +85°C 40 TA = +25°C 30 ON-LEAKAGE (nA) OFF-LEAKAGE (nA) TA = +125°C 50 1 0.1 0.01 0.
PAGE 6
DG417/DG418/DG419 Improved, SPST/SPDT Analog Switches ______________________________________________________________Pin Description PIN DG417 DG418 DG419 1 — — — 1 — — 2 NAME FUNCTION S Analog-Switch Source Terminal (normally closed) — S Analog-Switch Source Terminal (normally open) 2 S1 Analog-Switch Source Terminal 1 (normally closed) 2 — N.C.
PAGE 7
Improved, SPST/SPDT Analog Switches LOGIC INPUT t R < 20ns t F < 20ns +3V 50% SWITCH INPUT 0V +5V +15V VL V+ D DG417 DG418 IN SWITCH OUTPUT 0V 0.9 x VOUT 0.9 x VOUT t ON GND LOGIC INPUT VOUT RL 300Ω t OFF VOUT SWITCH OUTPUT S CL 35pF V- -15V CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VOUT = VD RL + RDS(ON) LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. ( ) Figure 2.
PAGE 8
DG417/DG418/DG419 Improved, SPST/SPDT Analog Switches ______________________________________Test Circuits/Timing Diagrams (continued) LOGIC INPUT +3V 50% 0V +10V VOUT1 SWITCH OUTPUT 1 0.9 x VOUT +15V VL V+ DG419 RL 300Ω 0V IN1, IN2 VOUT 0.9 x VOUT tD VOUT D S2 VOUT2 SWITCH OUTPUT 2 S1 +5V LOGIC INPUT GND tD CL 35pF V-15V CL INCLUDES FIXTURE AND STRAY CAPACITANCE. Figure 4.
PAGE 9
Improved, SPST/SPDT Analog Switches 10nF SIGNAL GENERATOR 0dBm +15V +5V V+ VL D DG417 DG418 DG419 10nF +15V SIGNAL GENERATOR 0dBm 0V or 2.4V IN NETWORK ANALYZER S1 or S2 NETWORK ANALYZER GND 0V or 2.4V V- 10nF RL D 50Ω S1 IN D S2 GND RL V- 10nF -15V Figure 6. Off-Isolation Rejection Ratio Figure 7. DG419 Crosstalk +15V +5V V+ VL DG417 DG418 DG419 10nF +15V +5V V+ VL DG417 DG418 DG419 D D 0V or 2.4V IN CAPACITANCE METER IN 0V or 2.
PAGE 10
DG417/DG418/DG419 Improved, SPST/SPDT Analog Switches __Ordering Information (continued) PART ______________________Chip Topography TEMP.
PAGE 11
Improved, SPST/SPDT Analog Switches PDIPN.EPS SOICN.
PAGE 12
___________________________________________Package Information (continued) CDIPS.EPS DG417/DG418/DG419 Improved, SPST/SPDT Analog Switches 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.