Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - analogue switches uMAX 8

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_______________General Description

The MAX323/MAX324/MAX325 are precision, dual,

SPST analog switches. They are single-supply devices

designed to operate from +2.7V to +16V. The MAX323

has two normally open (NO) switches, and the MAX324

has two normally closed (NC) switches. The MAX325

has one NO and one NC switch. Low power consump-

tion (5µW) makes these parts ideal for battery-powered

equipment. These switches offer low leakage currents

(100pA max) and fast switching speeds (t

= 150ns

max, t

OFF

= 100ns max).

When powered from a 5V supply, the MAX323 series

offers 2Ω max matching between channels, 60Ω max

on-resistance, and 6Ω max R

flatness.

These switches also offer 5pC max charge injection,

and a minimum of 2000V ESD per Method 3015.7.

For equivalent devices specified for dual-supply opera-

tion, see the MAX320/MAX321/MAX322 data sheet. For

quad versions of the MAX320 series, see MAX391/

MAX392/MAX393 data sheet.

________________________Applications

Battery-Operated Systems Sample-and-Hold Circuits

Heads-Up Displays Guidance and Control Systems

Audio and Video Switching Military Radios

Test Equipment Communications Systems

+3V, +5V DACs and ADCs PBX, PABX

____________________________Features

♦ Low On-Resistance (R

), 60Ω max (33Ω typ)

♦ R

Matching Between Channels <2Ω

♦ R

Flatness <6Ω Max

♦ Guaranteed Charge Injection <5pC

♦ Single-Supply Operation (+2.7V to +16V)

♦ Low Power Consumption, <5µW

♦ Low Leakage Current Over Temperature,

<2.5nA at +85°C

♦ Fast Switching: t

<150ns, t

OFF

<100ns

♦ Guaranteed Break-Before-Make (MAX325 only)

♦ TTL/CMOS Logic Compatible

______________Ordering Information

MAX323/MAX324/MAX325

Precision, Single-Supply,

SPST Analog Switches

________________________________________________________________

Maxim Integrated Products

DIP/SO/µMAX

V+

IN1

COM2

NC2

V-

IN2

COM1

NC1

MAX324

DIP/SO/µMAX

V+

IN1

COM2

NC2

V-

IN2

COM1

NO1

MAX325

SWITCHES SHOWN FOR LOGIC "0" INPUT

MAX324

LOGIC SWITCH

OFF

TOP VIEW

DIP/SO/µMAX

MAX323

LOGIC SWITCH

OFF

MAX325

LOGIC SWITCH 1

OFF

SWITCH 2

OFF

V+

IN1

COM2

NO2

V-

IN2

COM1

NO1

MAX323

_____________________Pin Configurations/Functional Diagrams/Truth Tables

19-0347; Rev 1; 10/97

Ordering Information continued at end of data sheet.

* Contact factory for dice specifications.

** Contact factory for availability.

8 CERDIP**-55°C to +125°CMAX323MJA

8 CERDIP**-40°C to +85°CMAX323EJA

8 SO-40°C to +85°CMAX323ESA

8 Plastic DIP-40°C to +85°CMAX323EPA

Dice*0°C to +70°CMAX323C/D

8 µMAX0°C to +70°CMAX323CUA

8 Plastic DIP0°C to +70°C

MAX323CPA

PIN-PACKAGETEMP. RANGEPART

8 SO0°C to +70°CMAX323CSA

Summary of content (12 pages)

PAGE 1
9-0347; Rev 1; 10/97 Precision, Single-Supply, SPST Analog Switches ____________________________Features ♦ Low On-Resistance (RON), 60Ω max (33Ω typ) ♦ RON Matching Between Channels <2Ω ♦ RON Flatness <6Ω Max ♦ Guaranteed Charge Injection <5pC ♦ Single-Supply Operation (+2.
PAGE 2
MAX323/MAX324/MAX325 Precision, Single-Supply, SPST Analog Switches ABSOLUTE MAXIMUM RATINGS Voltage Referenced to GND V+ .........................................................................-0.3V to +17V IN_, COM_, NC_, NO_ (Note 1)..................-0.3V to (V+ + 0.3V) Continuous Current (any terminal) ......................................30mA Peak Current, COM_, NO_, NC_ (pulsed at 1ms, 10% duty cycle max) ............................100mA ESD per Method 3015.7 .....................................
PAGE 3
Precision, Single-Supply, SPST Analog Switches MAX323/MAX324/MAX325 ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued) (V+ = 5V ±10%, GND = 0V, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.
PAGE 4
MAX323/MAX324/MAX325 Precision, Single-Supply, SPST Analog Switches ELECTRICAL CHARACTERISTICS—Single +3.3V Supply (V+ = 3.0V to 3.6V, GND = 0V, VINH = 2.4V, VINL = 0.6V, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MIN TYP (Note 2) MAX UNITS ANALOG SWITCH Analog Signal Range VCOM, VNO, VNC (Note 3) RON V+ = 3V, ICOM = 1.0mA, VNO or VNC = 1.5V Turn-On Time (Note 3) tON VNO or VNC = 1.5V Turn-Off Time (Note 3) tOFF VNO or VNC = 1.
PAGE 5
Precision, Single-Supply, SPST Analog Switches V+ = 5V 50 D 40 RON (Ω) 50 40 B 30 C ∆RON (Ω) A 30 B TA = -55°C TA = +25°C TA = +85°C TA = +125°C 0.6 D 0.4 20 A: B: C: D: A 10 C 10 0 0 2 4 8 6 10 12 0 1 2 VCOM (V) 4 0 5 OFF LEAKAGE CURRENT vs. TEMPERATURE MAX323-04 1 0.1 0.01 0.001 0.0001 V+ = 5.5V VCOM = 1V VNC OR VNO = 1V 45 65 4 5 V+ = 5V 1 0.1 0 0.01 -1 0.001 -2 -3 -55 -35 -15 TEMPERATURE (°C) 3 CHARGE INJECTION vs. VCOM 1 85 105 125 2 2 0.
PAGE 6
MAX323/MAX324/MAX325 Precision, Single-Supply, SPST Analog Switches _____________________Pin Description PIN NAME FUNCTION NO1 Normally Open Analog Switch Terminal (MAX323/MAX325) NC1 Normally Closed Analog Switch Terminal (MAX324 only) POSITIVE SUPPLY D1 V+ 1 2, 6 COM1, COM2 Analog Switch Common Terminal 3, 7 IN2, IN1 Logic Inputs 4 GND Ground NO2 Normally Open Analog Switch Terminal (MAX323 only) NC2 Normally Closed Analog Switch Terminal (MAX324/MAX325) NO COM Vg GND D2 5 8 V
PAGE 7
Precision, Single-Supply, SPST Analog Switches MAX323 MAX324 MAX325 SWITCH INPUT +5V V+ NO or NC COM V COM LOGIC INPUT SWITCH OUTPUT t r < 20ns t f < 20ns +3V 50% 0V VOUT RL 1kΩ CL 35pF t OFF IN VOUT GND LOGIC INPUT SWITCH OUTPUT 0V 0.9 x VOUT t ON 0V CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL VOUT = VCOM RL + RON ( 0.9 x V0UT LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. ) Figure 2.
PAGE 8
MAX323/MAX324/MAX325 Precision, Single-Supply, SPST Analog Switches _________________________________Test Circuits/Timing Diagrams (continued) SIGNAL GENERATOR 0dBm MAX323 MAX324 MAX325 +5V 10nF COM SIGNAL GENERATOR 0dBm V+ 0V or 2.4V IN ANALYZER GND IN2 N02 COM2 0V or 2.4V NC Figure 6. Crosstalk +5V 10nF MAX323 MAX324 MAX325 V+ 10nF GND Figure 7. Channel-Off Capacitance MAX323 MAX324 MAX325 COM IN NC or NO +5V V+ COM 8 IN1 50Ω RL Figure 5.
PAGE 9
Precision, Single-Supply, SPST Analog Switches PART MAX324CPA MAX324CUA MAX324CSA MAX324C/D MAX324EPA MAX324ESA MAX324EJA MAX324MJA MAX325CPA MAX325CUA MAX325CSA MAX325C/D MAX325EPA MAX325ESA MAX325EJA MAX325MJA TEMP. RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -55°C to +125°C * Contact factory for dice specifications.
PAGE 10
MAX323/MAX324/MAX325 Precision, Single-Supply, SPST Analog Switches ________________________________________________________Package Information DIM C α A 0.101mm 0.004 in e B A1 L E A A1 B C D E e H L α INCHES MAX MIN 0.044 0.036 0.008 0.004 0.014 0.010 0.007 0.005 0.120 0.116 0.120 0.116 0.0256 0.198 0.188 0.026 0.016 6° 0° MILLIMETERS MIN MAX 0.91 1.11 0.10 0.20 0.25 0.36 0.13 0.18 2.95 3.05 2.95 3.05 0.65 4.78 5.03 0.41 0.66 0° 6° INCHES MAX MIN 0.200 – – 0.015 0.175 0.125 0.080 0.055 0.022 0.
PAGE 11
Precision, Single-Supply, SPST Analog Switches DIM D 0°-8° A 0.101mm 0.004in. e B A1 E C H L SO SMALL OUTLINE PACKAGE (0.150 in.) A A1 B C E e H L INCHES MAX MIN 0.069 0.053 0.010 0.004 0.019 0.014 0.010 0.007 0.157 0.150 0.050 0.244 0.228 0.050 0.016 DIM PINS D D D 8 14 16 MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 3.80 4.00 1.27 5.80 6.20 0.40 1.27 INCHES MILLIMETERS MIN MAX MIN MAX 0.189 0.197 4.80 5.00 0.337 0.344 8.55 8.75 0.386 0.394 9.80 10.
PAGE 12
MAX323/MAX324/MAX325 Precision, Single-Supply, SPST Analog Switches ___________________________________________Package Information (continued) DIM D E A Q B2 e 0°-15° L C eA A B B2 C E eA e L Q S1 INCHES MAX MIN 0.225 – 0.023 0.014 0.065 0.038 0.015 0.008 0.310 0.220 0.320 0.290 0.100 0.200 0.125 0.070 0.015 – 0.005 MILLIMETERS MIN MAX – 5.72 0.36 0.58 0.97 1.65 0.20 0.38 5.59 7.87 7.37 8.13 2.54 3.18 5.08 0.38 1.78 0.13 – B S1 Ceramic SB CERAMIC SIDEBRAZE PACKAGE (0.300 in.