Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - analogue switches SOIC 16 W

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General Description

The MAX4680/MAX4690/MAX4700 dual analog switches

feature low on-resistance of 1.25Ω max. On-resistance is

matched between switches to 0.3Ω max and is flat (0.3Ω

max) over the specified signal range. Each switch can

handle Rail-to-Rail

analog signals. Off-leakage current is

only 5nA max at +85°C. These analog switches are ideal

in low-distortion applications and are the preferred solu-

tion over mechanical relays in automatic test equipment

or applications where current switching is required. They

have low power requirements, require less board space,

and are more reliable than mechanical relays.

The MAX4680 has two NC (normally closed) switches,

and the MAX4690 has two NO (normally open) switch-

es. The MAX4700 has one NC and one NO switch and

features guaranteed break-before-make switching.

These devices operate from a +4.5V to +36V single

supply or from ±4.5V to ±20V dual supplies. A separate

logic supply pin guarantees TTL/CMOS-logic compati-

bility while operating across the entire supply voltage

range.

Applications

Reed Relay Replacement Data Acquisition Systems

Test Equipment Sample-and-Hold Circuits

Communication Systems

PBX, PABX Systems

Features

♦ Low On-Resistance (1.25Ω max)

♦ Guaranteed R

Match Between Channels

(0.3Ω max)

♦ Guaranteed R

Flatness Over Specified

Signal Range (0.3Ω max)

♦ Rail-to-Rail Signal Handling

♦ Guaranteed Break-Before-Make (MAX4700)

♦ +4.5V to +36V Single-Supply Operation

±4.5V to ±20V Dual-Supply Operation

♦ TTL/CMOS-Compatible Control Inputs

♦ >2kV ESD Protection per Method 3015.7

MAX4680/MAX4690/MAX4700

1.25

Ω

, Dual SPST,

CMOS Analog Switches

________________________________________________________________

Maxim Integrated Products

LOGIC

TOP VIEW

N.C. = NOT INTERNALLY CONNECTED

SWITCHES SHOWN FOR LOGIC “0” INPUT

NC1

N.C.

COM1

V+

V-

N.C.

IN1

N.C.

COM2

N.C.

NC2

N.C.

IN2

N.C.

GND

SSOP/SO/DIP

MAX4680

LOGIC SWITCH

OFF

N01

N.C.

COM1

V+

V-

N.C.

IN1

N.C.

COM2

N.C.

NO2

N.C.

IN2

N.C.

GND

SSOP/SO/DIP

MAX4690

SWITCH

OFF

N01

N.C.

COM1

V+

V-

N.C.

IN1

N.C.

COM2

N.C.

NC1

N.C.

IN2

N.C.

GND

SSOP/SO/DIP

MAX4700

LOGIC SWITCH 1

OFF

SWITCH 2

OFF

MAX4680

MAX4690

MAX4700

19-1513; Rev 0; 7/99

PART

MAX4680CAE

MAX4680CWE

MAX4680CPE 0°C to +70°C

0°C to +70°C

TEMP. RANGE PIN-PACKAGE

16 SSOP

16 Wide SO

16 Plastic DIP

Ordering Information continued at end of data sheet.

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

Pin Configurations/Functional Diagrams/Truth Tables

Ordering Information

MAX4680EAE -40°C to +85°C 16 SSOP

MAX4680EWE -40°C to +85°C 16 Wide SO

MAX4680EPE -40°C to +85°C 16 Plastic DIP

Summary of content (12 pages)

PAGE 1
9-1513; Rev 0; 7/99 1.25Ω, Dual SPST, CMOS Analog Switches Applications Reed Relay Replacement Data Acquisition Systems Test Equipment Sample-and-Hold Circuits Communication Systems PBX, PABX Systems Features ♦ Low On-Resistance (1.25Ω max) ♦ Guaranteed RON Match Between Channels (0.3Ω max) ♦ Guaranteed RON Flatness Over Specified Signal Range (0.3Ω max) ♦ Rail-to-Rail Signal Handling ♦ Guaranteed Break-Before-Make (MAX4700) ♦ +4.5V to +36V Single-Supply Operation ±4.
PAGE 2
MAX4680/MAX4690/MAX4700 1.25Ω, Dual SPST, CMOS Analog Switches ABSOLUTE MAXIMUM RATINGS V+ to GND ..............................................................-0.3V to +44V V- to GND ...............................................................+0.3V to -44V V+ to V-...................................................................-0.3V to +44V VL to GND.................................................... -0.3V to (V+ + 0.3V) All Other Pins to GND (Note 1) ........... (V- - 0.3V) to (V+ + 0.
PAGE 3
1.25Ω, Dual SPST, CMOS Analog Switches (V+ = +15V, V- = -15V, VL = +5V, VIN_H = +2.4V, VIN_L = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL Logic Input Voltage High VIN_H Logic Input Voltage Low VIN_L CONDITIONS MIN TYP MAX 2.4 UNITS V 0.8 V ±20.0 V POWER SUPPLY Power-Supply Range ±4.
PAGE 4
MAX4680/MAX4690/MAX4700 1.25Ω, Dual SPST, CMOS Analog Switches ELECTRICAL CHARACTERISTICS–Single Supply (V+ = +12V, V- = 0, VL = +5V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 5
1.25Ω, Dual SPST, CMOS Analog Switches (V+ = +12V, V- = 0, VL = +5V, VIN_H = 2.4V, VIN_L = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 6
Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) ON-RESISTANCE vs. VCOM AND TEMPERATURE (SINGLE SUPPLY) V+ = +15V V- = -15V 600 1 TA = +25°C 1.00 TA = -40°C 400 ON-LEAKAGE 0.1 0 -200 0.01 0.50 V+ = +12V V- = GND 0.25 -400 0 1 2 3 4 V+ = +12V V- = GND OFF-LEAKAGE 0.75 0 V+ = +15V V- = -15V 200 Q (pC) 1.25 LEAKAGE (nA) 1.50 5 6 7 8 0.
PAGE 7
1.25Ω, Dual SPST, CMOS Analog Switches PIN NAME FUNCTION MAX4680 MAX4690 MAX4700 1, 3, 6, 8, 10, 15 1, 3, 6, 8, 10, 15 1, 3, 6, 8, 10, 15 N.C.
PAGE 8
MAX4680/MAX4690/MAX4700 1.25Ω, Dual SPST, CMOS Analog Switches ___________Applications Information +15V Overvoltage Protection D1 Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the devices. Always sequence V+ on first, then V-, followed by the logic inputs, NO, or COM.
PAGE 9
1.25Ω, Dual SPST, CMOS Analog Switches VCOM1 VCOM2 V+ COM1 LOGIC INPUT VOUT2 RL2 IN_ RL1 0V CL1 SWITCH OUTPUT 1 (VOUT1) CL2 0.9 · V0UT1 0V SWITCH OUTPUT 2 (VOUT2) V- GND 50% VOUT1 NC COM2 +3V LOGIC INPUT NO -15V CL INCLUDES FIXTURE AND STRAY CAPACITANCE. MAX4680/MAX4690/MAX4700 +15V MAX4700 0.9 · VOUT2 0V RL = 100Ω CL = 35pF tD tD Figure 3.
PAGE 10
MAX4680/MAX4690/MAX4700 1.25Ω, Dual SPST, CMOS Analog Switches +15V SIGNAL GENERATOR 0dBm MAX4680 MAX4690 MAX4700 +5V V+ SIGNAL GENERATOR 0dBm VL COM_ IN_ ANALYZER 0 OR +3.0V GND +5V V+ VL COM1 MAX4680 MAX4690 MAX4700 N_1 0 OR +3.0V COM2 N_2 GND V- 50Ω IN2 IN1 0 OR +3.0V ANALYZER NC_ OR NO_ +15V NC V- RL RL -15V -15V Figure 5. Off-Isolation Test Circuit +15V V+ COM_ Figure 6.
PAGE 11
1.25Ω, Dual SPST, CMOS Analog Switches PART TEMP.
PAGE 12
1.25Ω, Dual SPST, CMOS Analog Switches SOICW.EPS MAX4680/MAX4690/MAX4700 Package Information (continued) 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.