Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - analogue switches uMAX 8

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DG417L/DG418L/DG419L

35Ω, SPST/SPDT, +3V

Logic-Compatible Analog Switches

________________________________________________________________ Maxim Integrated Products 1

19-2170; Rev 0; 10/01

General Description

The DG417L/DG418L/DG419L precision, CMOS ana-

log switches feature low on-resistance (R

= 35Ω),

guaranteed R

matching between switches (3Ω

max), and guaranteed R

flatness over the signal

range (4Ω max). These switches are +3V logic-com-

patible when powered from ±15V or ±12V supplies.

The switches conduct equally well in either direction,

and feature low charge injection and low power con-

sumption. The DG417L/DG418L/DG419L also offer low

off-leakage current over temperature (less than 5nA at

+85°C).

The DG417L/DG418L are single-pole/single-throw

(SPST) switches. The DG417L is normally closed, and

the DG418L is normally open. The DG419L is single-

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

switch and one normally open switch. Switching times

are less than 175ns for t

and less than 185ns for

OFF

. These devices operate with a single +9V to +36V

or bipolar ±4.5V to ±20V supplies.

The digital input has a +0.8V logic-low threshold and a

+2.0V logic-high threshold, ensuring +3V TTL and

CMOS-logic compatibility. The DG417L/DG418L/

DG419L are available in a tiny 8-pin µMAX, 8-pin SO,

or convenient 8-pin plastic DIP. All products are rated

at the extended temperature range of -40°C to +85°C.

________________________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

____________________________Features

♦ +3V Logic-Compatible Digital Inputs

= 2.0V

= 0.8V

♦ Plug-In Upgrades for Industry-Standard

DG417/DG418/DG419 and

MAX317/MAX318/MAX319

♦ Power-Supply Sequencing-Free Operation

♦ Low On-Resistance (35Ω max)

♦ Guaranteed Matched On-Resistance Between

Channels (3Ω max)

♦ Guaranteed On-Resistance Flatness (4Ω max)

♦ Single-Supply Operation +9V to +36V

Dual-Supply Operation ±4.5V to ±20V

♦ Guaranteed Off-Leakage Current Over

Temperature (<5nA at +85°C)

♦ Rail-to-Rail Analog Signal Handling Capability

♦ Tiny 8-Pin µMAX Package

TOP VIEW

V-

N.C.

V+

GND

N.C.

COM

DIP/SO/µMAX

V-

N.C.

V+

GND

N.C.

COM

DIP/SO/µMAX

V-

N.C.

V+

GND

COM

DIP/SO/µMAX

LOGIC SWITCH

OFF

SWITCHES SHOWN FOR LOGIC "0" INPUT

LOGIC SWITCH

OFF

LOGIC NC

OFF

DG417L DG418L

DG419L

N.C. = NO CONNECT

NC = NORMALLY CLOSED

DG417L

DG419L

DG418L

Pin Configurations/Functional Diagrams/Truth Tables

PART

DG417LEUA

-40°C to +85°C

TEMP. RANGE PIN-PACKAGE

8 µMAX

Ordering Information

Ordering Information continued at end of data sheet.

Rail-to-Rail is a registered trademark of Nippon Motorola, Inc.

DG417LDY -40°C to +85°C 8 SO

DG417LDJ -40°C to +85°C 8 Plastic DIP

Summary of content (13 pages)

PAGE 1
9-2170; Rev 0; 10/01 35Ω, SPST/SPDT, +3V Logic-Compatible Analog Switches ____________________________Features ♦ +3V Logic-Compatible Digital Inputs VIH = 2.0V VIL = 0.8V ♦ Plug-In Upgrades for Industry-Standard DG417/DG418/DG419 and MAX317/MAX318/MAX319 ♦ Power-Supply Sequencing-Free Operation ♦ Low On-Resistance (35Ω max) ♦ Guaranteed Matched On-Resistance Between Channels (3Ω max) ♦ Guaranteed On-Resistance Flatness (4Ω max) ♦ Single-Supply Operation +9V to +36V Dual-Supply Operation ±4.
PAGE 2
DG417L/DG418L/DG419L 35Ω, SPST/SPDT, +3V Logic-Compatible Analog Switches ABSOLUTE MAXIMUM RATINGS Voltage referenced to VV+ ..........................................................................................44V GND.......................................................................................25V IN ...........................................................................-0.3V to +44V COM, NC, NO (Note 1) ........................(V- - 0.3V) to (V+ + 0.
PAGE 3
5Ω, SPST/SPDT, +3V Logic-Compatible Analog Switches (V+ = +15V, V- = -15V, VIH = 2.0V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 4
DG417L/DG418L/DG419L 35Ω, SPST/SPDT, +3V Logic-Compatible Analog Switches ELECTRICAL CHARACTERISTICS—Dual ±15V Supplies (continued) (V+ = +15V, V- = -15V, VIH = 2.0V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX UNITS 0.8 V DIGITAL I/O Input Logic High Voltage VIH Input Logic Low Voltage VIL 2.0 V Logic Input Current (Input Voltage Low) IINL VIN = 0.8V 0.
PAGE 5
35Ω, SPST/SPDT, +3V Logic-Compatible Analog Switches (V+ = +12V, V- = 0, VIH = 2.0V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 6
__________________________________________Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) ON-RESISTANCE ON-RESISTANCE ON-RESISTANCE VS. VCOM (DUAL SUPPLIES) VS. VCOM (SINGLE SUPPLY) VS.
PAGE 7
35Ω, SPST/SPDT, +3V Logic-Compatible Analog Switches A 0.01 A: DUAL SUPPLIES B: SINGLE SUPPLY 1.9 B 1.8 8 DG417/18/19L toc11 2.0 V+ = 15V V- = -15V VIN = 0, V+ 7 6 I+ 1.7 I+, I- (nA) 0.1 B DG417/18/19L toc10 A: V+ = 16.5V V- = -16.5V VCOM = ±15V B: V+ = +36V V- = 0 VCOM = +35V LOGIC THRESHOLD (V) OFF-LEAKAGE (nA) 1 SUPPLY CURRENT vs. TEMPERATURE LOGIC THRESHOLD vs. SUPPLY VOLTAGE DG417/18/19L toc12 OFF-LEAKAGE CURRENTS vs. TEMPERATURE 1.6 A 1.5 1.4 5 I- 4 3 1.3 2 1.2 1 1.1 0.
PAGE 8
DG417L/DG418L/DG419L 35Ω, SPST/SPDT, +3V Logic-Compatible Analog Switches ______________________________________________________________Pin Description PIN NAME FUNCTION DG417L DG418L DG419L 1 1 1 COM Analog Switch Common Terminal 2, 5 2, 5 5 N.C. No Connection. Not internally connected.
PAGE 9
35Ω, SPST/SPDT, +3V Logic-Compatible Analog Switches Power-Supply Sequencing-Free Operation Most CMOS switches require specific power-supply sequencing in order to prevent device latchup. The older DG417/DG418/DG419 devices require a proper power-supply sequence of V+, VL, then V-. Otherwise, it is necessary to add signal diodes to the circuit in order to prevent potential latchups. The new DG417L/DG418L/DG419L devices eliminate the need for a VL input and allow any power-up sequence.
PAGE 10
DG417L/DG418L/DG419L 35Ω, SPST/SPDT, +3V Logic-Compatible Analog Switches Test Circuits/Timing Diagrams (continued) SIGNAL GENERATOR 0dBm DG417L DG418L DG419L V+ 10nF COM V+ N.C. CL SIGNAL GENERATOR 0dBm 0 or 2.4V IN NC OR NO NETWORK ANALYZER 10nF 0 or 2.4V NETWORK ANALYZER V- GND RL COM V+ DG419L N.C. 50Ω NC IN COM NO GND RL 10nF V+ V- 10nF VV- Figure 5. Off-Isolation Figure 6. DG419L Crosstalk V+ 10nF V+ DG417L DG418L DG419L N.C. V+ COM f = 1MHz 0 or 2.
PAGE 11
35Ω, SPST/SPDT, +3V Logic-Compatible Analog Switches 8LUMAXD.
PAGE 12
___________________________________________Package Information (continued) SOICN.
PAGE 13
35Ω, SPST/SPDT, +3V Logic Compatible Analog Switches PDIPN.EPS 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.