Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - analogue switches PDIP 8

_______________General Description

The MAX317/MAX318/MAX319 are precision, CMOS,

monolithic analog switches. The single-pole single-

throw (SPST) MAX317 is normally closed (NC), the

SPST MAX318 is normally open (NO), and the single-

pole double-throw (SPDT) MAX319 has one normally

open and one normally closed switch. All three parts

offer low on resistance (less than 35Ω), guaranteed to

match within 2Ω between channels and to remain flat

over the analog signal range (∆3Ω max). They also

offer low leakage (less than 250pA at +25°C and less

than 6nA at +85°C) and fast switching (turn-on time

less than 175ns and turn-off time less than 145ns).

The MAX317/MAX318/MAX319 are fabricated with

Maxim’s new improved silicon-gate process. Design

improvements guarantee extremely low charge injec-

tion (10pC), low power consumption (35µW), and elec-

trostatic discharge (ESD) greater than ±2000V. The

44V maximum breakdown voltage allows rail-to-rail ana-

log signal handling capability.

________________________Applications

Sample-and-Hold Circuits

Guidance and Control Systems

Heads-Up Displays

Test Equipment

Military Radios

Communications Systems

Battery-Powered Systems

PBX, PABX

____________________________Features

♦ Low On Resistance <20Ω Typical (35Ω Max)

♦ Guaranteed Matched On Resistance Between

Channels <2Ω

♦ Guaranteed Flat On Resistance over Analog

Signal Range ∆3Ω Max

♦ Guaranteed Charge Injection <10pC

♦ Guaranteed Off-Channel Leakage <6nA at +85°C

♦ ESD Guaranteed > 2000V per Method 3015.7

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

Bipolar-Supply Operation (±4.5V to ±20V)

♦ TTL-/CMOS-Logic Compatible

♦ Rail-to-Rail Analog Signal Handling Capability

______________Ordering Information

MAX317/MAX318/MAX319

Precision, CMOS Analog Switches

_______________________________________________________________________

Maxim Integrated Products

Call toll free 1-800-998-8800 for free samples or literature.

19-0185; Rev 1; 11/94

Ordering Information continued on last page.

* Contact factory for dice specifications.

_____________________Pin Configurations/Functional Diagrams/Truth Tables

TOP VIEW

V-

V+

GND

N.C.

COM

MAX318

DIP/SO

V-

V+

GND

N.C.

COM

MAX317

DIP/SO

V-

V+

GND

COM

MAX319

DIP/SO

LOGIC SWITCH

OFF

SWITCHES SHOWN FOR LOGIC "0" INPUT

LOGIC SWITCH

OFF

LOGIC NC

OFF

MAX317 MAX318 MAX319

N.C. = No Connect

NC = Normally Closed

PART TEMP. RANGE PIN-PACKAGE

MAX317CPA

0°C to +70°C 8 Plastic DIP

MAX317CSA 0°C to +70°C 8 SO

MAX317CJA 0°C to +70°C 8 CERDIP

MAX317C/D 0°C to +70°C Dice*

MAX317EPA -40°C to +85°C 8 Plastic DIP

MAX317ESA -40°C to +85°C 8 SO

MAX317EJA -40°C to +85°C 8 CERDIP

MAX317MJA -55°C to +125°C 8 CERDIP

Summary of content (12 pages)

PAGE 1
9-0185; Rev 1; 11/94 Precision, CMOS Analog Switches ________________________Applications Sample-and-Hold Circuits Guidance and Control Systems Heads-Up Displays Test Equipment Military Radios Communications Systems Battery-Powered Systems PBX, PABX ____________________________Features ♦ Low On Resistance <20Ω Typical (35Ω Max) ♦ Guaranteed Matched On Resistance Between Channels <2Ω ♦ Guaranteed Flat On Resistance over Analog Signal Range ∆3Ω Max ♦ Guaranteed Charge Injection <10pC ♦ Guaranteed Off-Chan
PAGE 2
MAX317/MAX318/MAX319 Precision, CMOS Analog Switches ABSOLUTE MAXIMUM RATINGS Voltage Referenced to VV+....................................................................................+44V GND ................................................................................+25V VL .................................................(GND - 0.3V) to (V+ + 0.3V) IN, COM, NC, NO....................(V- - 2V) to (V+ + 2V) or 30mA, whichever occurs first Continuous Current (any terminal) ..........................
PAGE 3
Precision, CMOS Analog Switches (V+ = 15V, V- = -15V, VL = 5V, GND = 0V, VINL = 0.8V, VINH = 2.4V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS TEMP. MIN TYP MAX (Note 2) UNITS LOGIC INPUT Logic Input Current (Input Voltage High) IIH VIN = 2.4V -0.5 0.005 0.5 µA Logic Input Current (Input Voltage Low) IIL VIN = 0.8V -0.5 0.005 0.
PAGE 4
MAX317/MAX318/MAX319 Precision, CMOS 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 MIN TYP MAX (Note 2) UNITS SWITCH Analog-Signal Range VCOM, (Note 3) 0 12 V 100 Ω VNO, VNC Drain-Source On Resistance R(ON) I(NC or NO) = -10mA, VCOM = 3.8V, V+ = 10.
PAGE 5
Precision, CMOS Analog Switches RON (Ω) 30 25 V+ = 15V V- = -15V 30 100 TA = +85°C 20 C 15 V+ = 5V 80 60 TA = -55°C D 15 V- = 0V 120 TA = +125°C 25 B 140 MAX317-02 MAX317-01 35 A 20 ON RESISTANCE vs. VCOM AND TEMPERATURE RON (Ω) 40 35 A: V+ = 5V, V- = -5V B: V+ = 10V, V- = -10V C: V+ = 15V, V- = -15V D: V+ = 20V, V- = -20V RON (Ω) 50 45 ON RESISTANCE vs. VCOM AND TEMPERATURE MAX317-03 ON RESISTANCE vs.
PAGE 6
MAX317/MAX318/MAX319 Precision, CMOS Analog Switches _______________________________________________________________________Pin Description PIN NAME FUNCTION MAX317 MAX318 MAX319 1 1 1 COM Analog-switch common terminal 2 2 — N.C.
PAGE 7
Precision, CMOS Analog Switches LOGIC INPUT 50% SWITCH INPUT 0V VL COM NC OR NO 0.9V0 0.9V0 0V t ON LOGIC INPUT VO RL 300Ω IN VO SWITCH OUTPUT V+ t OFF SWITCH V COM INPUT SWITCH OUTPUT MAX317 MAX318 +15V +5V t R < 20ns t F < 20ns +3V GND CL 35pF V- -15V CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VO = VCOM RL + RON LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. ( ) Figure 2.
PAGE 8
MAX317/MAX318/MAX319 Precision, CMOS Analog Switches ______________________________________Test Circuits/Timing Diagrams (continued) +3V LOGIC INPUT 50% 0V VCOM SWITCH OUTPUT 1 VL V+ MAX319 VO NO RL 300Ω IN1, IN2 VO2 V0 +15V COM 0.9VO 0V VCOM SWITCH OUTPUT 2 NC +10V VO1 +5V 0.9V0 tD LOGIC INPUT GND tD V-15V CL INCLUDES FIXTURE AND STRAY CAPACITANCE. Figure 4.
PAGE 9
Precision, CMOS Analog Switches +15V C MAX317 MAX318 MAX319 +5V SIGNAL GENERATOR 0dBm VL COM SIGNAL GENERATOR 0dBm 0V, 2.4V IN ANALYZER C 0V, 2.4V GND MAX319 VL 50Ω NC COM IN GND V- V- C RL C RL +5V NO ANALYZER NC OR NO +15V -15V -15V Figure 6. Off-Isolation Test Circuit C Figure 7. MAX319 Crosstalk Test Circuit +15V +5V V+ VL COM MAX317 MAX318 MAX319 C +15V +5V V+ VL COM MAX317 MAX318 MAX319 CAPACITANCE METER IN 0V f = 1MHz NC OR NO f = 1MHz IN 2.
PAGE 10
MAX317/MAX318/MAX319 Precision, CMOS Analog Switches __Ordering Information (continued) PART MAX318CPA TEMP.
PAGE 11
Precision, CMOS Analog Switches D E DIM E1 A A1 A2 A3 B B1 C D1 E E1 e eA eB L A3 A A2 L A1 0° - 15° C e B1 eA B eB D1 Plastic DIP PLASTIC DUAL-IN-LINE PACKAGE (0.300 in.) INCHES MAX MIN 0.200 – – 0.015 0.175 0.125 0.080 0.055 0.022 0.016 0.065 0.045 0.012 0.008 0.080 0.005 0.325 0.300 0.310 0.240 – 0.100 – 0.300 0.400 – 0.150 0.115 PKG. DIM PINS P P P P P N D D D D D D 8 14 16 18 20 24 INCHES MIN MAX 0.348 0.390 0.735 0.765 0.745 0.765 0.885 0.915 1.015 1.045 1.14 1.
PAGE 12
MAX317/MAX318/MAX319 Precision, CMOS Analog Switches ________________________________________________________Package Information DIM E1 E D A 0°-15° Q L L1 e C B1 B S1 S CERDIP CERAMIC DUAL-IN-LINE PACKAGE (0.300 in.) A B B1 C E E1 e L L1 Q S S1 INCHES MIN MAX – 0.200 0.014 0.023 0.038 0.065 0.008 0.015 0.220 0.310 0.290 0.320 0.100 0.125 0.200 0.150 – 0.015 0.070 – 0.098 0.005 – DIM PINS D D D D D D 8 14 16 18 20 24 MILLIMETERS MIN MAX – 5.08 0.36 0.58 0.97 1.65 0.20 0.38 5.59 7.87 7.37 8.