Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - analogue switches SOT 23 6

General Description

The MAX4624/MAX4625 are low-on-resistance, low-

voltage single-pole/double-throw (SPDT) analog switch-

es that operate from a single +1.8V to +5.5V supply.

The MAX4624 has break-before-make switching; the

MAX4625 has make-before-break switching. These

devices also have fast switching speeds (t

= 50ns

max, t

OFF

= 50ns max).

When powered from a +5V supply, the MAX4624/

MAX4625 offer 1Ω max on-resistance (R

), with 0.12Ω

max R

matching and flatness. The digital logic

inputs are TTL compatible when using a single +5V

supply. These switches also feature overcurrent protec-

tion to prevent damage from short circuits and exces-

sive loads.

The MAX4624/MAX4625 are pin compatible with the

MAX4544 and are available in space-saving standard

6-pin SOT23 packages, as well as the 1.0mm high Thin

SOT package.

Applications

Power Routing

Battery-Operated Equipment

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Communications Circuits

PCMCIA Cards

Cellular Phones

Modems

Hard Drives

Features

♦ Low R

1Ω max (+5V Supply)

2Ω max (+3V Supply)

♦ 0.12Ω max R

Flatness (+5V Supply)

♦ Overcurrent Protection

♦ +1.8V to +5.5V Single-Supply Operation

♦ Available in SOT23 Packages

♦ Fast Switching: t

= 50ns max, t

OFF

= 50ns max

♦ TTL-Logic Compatible (+5V Supply)

♦ Pin Compatible with MAX4544

♦ Guaranteed Break-Before-Make (MAX4624)

♦ Guaranteed Make-Before-Break (MAX4625)

MAX4624/MAX4625

1Ω, Low-Voltage, Single-Supply

SPDT Analog Switches

________________________________________________________________ Maxim Integrated Products 1

TOP VIEW

COM

GND

V+

MAX4624/MAX4625

SOT23-6

LOGIC NC

OFF

SWITCHES SHOWN

FOR LOGIC “0” INPUT

19-1592; Rev 2; 5/01

PART

MAX4624EUT-T

MAX4624EZT-T -40°C to +85°C

-40°C to +85°C

TEMP. RANGE

PIN-

PACKAGE

6 SOT23-6

6 SOT23-6*

Pin Configuration/

Functional Diagram/Truth Table

Ordering Information

TOP

MARK

AADL

AAAE

MAX4625EUT-T

-40°C to +85°C 6 SOT23-6 AADM

MAX4625EZT-T -40°C to +85°C 6 SOT23-6* AAAF

*Thin SOT (1.0mm height) package. Recommended for new

designs.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Summary of content (11 pages)

PAGE 1
9-1592; Rev 2; 5/01 1Ω, Low-Voltage, Single-Supply SPDT Analog Switches The MAX4624/MAX4625 are pin compatible with the MAX4544 and are available in space-saving standard 6-pin SOT23 packages, as well as the 1.0mm high Thin SOT package. Features ♦ Low RON 1Ω max (+5V Supply) 2Ω max (+3V Supply) ♦ 0.12Ω max RON Flatness (+5V Supply) ♦ Overcurrent Protection ♦ +1.8V to +5.
PAGE 2
MAX4624/MAX4625 1Ω, Low-Voltage, Single-Supply SPDT Analog Switches ABSOLUTE MAXIMUM RATINGS Voltages Referenced to GND V+, IN ....................................................................-0.3V to +6V COM, NC, NO (Note 1)..............................-0.3V to (V+ + 0.3V) Continuous Current NO, NC to COM..............................±200mA Peak Current NO, NC to COM (pulsed at 1ms, 10% duty cycle max) ........................ ±400mA Continuous Power Dissipation 6-Pin SOT23 (derate 7.
PAGE 3
1Ω, Low-Voltage, Single-Supply SPDT Analog Switches (V+ = +5V ±10%, GND = 0, VINH = 2.4V, VINL = 0.8V, TA = TMIN to TMAX, unless otherwise noted.
PAGE 4
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued) (V+ = +2.7V to +3.6V, GND = 0, VINH = 2.0V, VINL = 0.6V, TA = TMIN to TMAX, unless otherwise noted.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 0.6 V 1 µA 10 µA LOGIC INPUT Input Voltage Low VINL Input Voltage High VINH 2.0 Logic Input Current IIN -1 V SUPPLY Positive Supply Current I+ V+ = 3.
PAGE 5
1Ω, Low-Voltage, Single-Supply SPDT Analog Switches ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE tON 20 50 MAX4625 1 0 Q (pC) ON/OFF-LEAKAGE (nA) 30 0.1 MAX4624 -50 -100 0.01 10 -150 tOFF 0.001 0 0 20 40 60 -200 -40 80 -20 0 20 40 60 80 100 0 10 2.5 -30 -20 -40 -30 OFF-ISOLATION -50 -40 -60 -50 -70 -60 V+ = 5V 50Ω = IN/OUT -90 1M 10M PHASE (degrees) -10 LOGIC THRESHOLD VOLTAGE (V) -0 ON-PHASE -80 2.0 5 VIN RISING 1.5 VIN FALLING 1.0 0.
PAGE 6
MAX4624/MAX4625 1Ω, Low-Voltage, Single-Supply SPDT Analog Switches Pin Description PIN NAME FUNCTION 1 IN Digital Control Input 2 V+ Positive Supply Voltage Input 3 GND 4 NC 5 COM 6 NO Ground Analog Switch—Normally Closed Analog Switch—Common Analog Switch—Normally Open Detailed Description The MAX4624/MAX4625 are low-on-resistance (RON), low-voltage, single-pole/double-throw (SPDT) analog switches that operate from a +1.8V to +5.5V supply.
PAGE 7
1Ω, Low-Voltage, Single-Supply SPDT Analog Switches Protection diodes D1 and D2 also protect against some overvoltage situations. With Figure 1’s circuit, if the supply voltage is below the absolute maximum rating, and if a fault voltage up to the absolute maximum rating is applied to an analog signal pin, no damage will result. Test Circuits/Timing Diagrams MAX4624 MAX4625 V+ V+ COM NO OR NC VIN_ LOGIC INPUT 50% VINL VOUT RL 50Ω CL 35pF t OFF IN VOUT GND LOGIC INPUT SWITCH OUTPUT 0.
PAGE 8
1Ω, Low-Voltage, Single-Supply SPDT Analog Switches MAX4624/MAX4625 Test Circuits/Timing Diagrams (continued) V+ MAX4625 V+ NC VCOM VINL VNC NO VNC 0.8 • VOUT VNO RL 50Ω LOGIC INPUT VINH LOGIC INPUT CL 35pF RL 50Ω CL 35pF 0.8 • VOUT GND VNQ tMBB CL INCLUDES FIXTURE AND STRAY CAPACITANCE. Figure 3b.
PAGE 9
1Ω, Low-Voltage, Single-Supply SPDT Analog Switches TRANSISTOR COUNT: 186 V+ 10nF V+ COM MAX4624 MAX4625 IN CAPACITANCE METER f = 1MHz NC or NO VINL OR VINH GND Figure 6.
PAGE 10
1Ω, Low-Voltage, Single-Supply SPDT Analog Switches 6LSOT.
PAGE 11
1Ω, Low-Voltage, Single-Supply 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.