Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - analogue switches uMAX 10

General Description

The MAX4635/MAX4636 are fast, dual 4Ω single-

pole/double-throw (SPDT) analog switches that operate

with supply voltages from +1.8V to +5.5V. High switch-

ing speeds, 1Ω on-resistance flatness, and low power

consumption make these devices ideal for audio/video,

communications, and battery-operated devices.

Containing two independently controllable SPDT

switches in 10-pin µMAX and 10-pin 3mm x 3mm thin

QFN packages, the MAX4635/MAX4636 use little board

space, and have low power consumption ensuring min-

imal impact on your power budget. The analog signal

range extends to the supply rails. The MAX4635 has

inverted logic compared to the MAX4636.

________________________Applications

Battery-Powered Equipment

Relay Replacement

Audio and Video Signal Routing

Low-Voltage Data-Acquisition Systems

Sample-and-Hold Circuits

Communications Circuits

Features

♦ Guaranteed On-Resistance

4Ω (max) +5V Supply

5.5Ω (max) +3V Supply

♦ Guaranteed Match Between Channels

0.2Ω (max)

♦ Guaranteed Flatness Over Signal Range

1Ω (max) with +5V Supply

♦ Fast Switching Speeds

14ns (max) Turn-On Time

6ns (max) Turn-Off Time

♦ 1.8V Operation

100Ω (typ) On-Resistance Over Temperature

56ns (typ) Turn-On Time

17ns (typ) Turn-Off Time

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

♦ Rail-to-Rail

Signal Handling

♦ Low Crosstalk: -67dB at 1MHz

♦ High Off-Isolation: -65dB at 1MHz

♦ THD: 0.1%

MAX4635/MAX4636

Fast, Low-Voltage, Dual 4Ω SPDT

CMOS Analog Switches

________________________________________________________________ Maxim Integrated Products 1

COM1

NO1

V+

NO2NC2

GND

NC1

IN1

MAX4636

µMAX

TOP VIEW

COM2IN2

COM1

NC1

V+

NC2NO2

GND

NO1

IN1

MAX4635

µMAX

COM2IN2

COM1

NO1

V+

NO2NC2

GND

NC1

IN1

MAX4636

3 x 3 THIN QFN

COM2IN2

COM1

NC1

V+

NC2NO2

GND

NO1

IN1

MAX4635

3 x 3 THIN QFN

COM2IN2

SWITCHES SHOWN FOR "0" INPUT

OFF

IN_

NO_ TO COM_ NC_ TO COM_

Pin Configuration/Functional Diagram/Truth Table

19-1709; Rev 2; 5/03

Ordering Information

PART TEMP RANGE

PIN-

PACKAGE

TOP

MARK

MAX4635EUB -40°C to +85°C 10 µMAX —

MAX4635ETB -40°C to +85°C 10 Thin

QFN (3

✕ 3)

AAT

MAX4636EUB -40°C to +85°C 10 µMAX —

MAX4636ETB -40°C to +85°C 10 Thin

QFN (3

✕ 3)

AAO

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

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
9-1709; Rev 2; 5/03 Fast, Low-Voltage, Dual 4Ω SPDT CMOS Analog Switches ________________________Applications Battery-Powered Equipment Relay Replacement Audio and Video Signal Routing Low-Voltage Data-Acquisition Systems Sample-and-Hold Circuits Features ♦ Guaranteed On-Resistance 4Ω (max) +5V Supply 5.5Ω (max) +3V Supply ♦ Guaranteed Match Between Channels 0.
PAGE 2
MAX4635/MAX4636 Fast, Low-Voltage, Dual 4Ω SPDT CMOS 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 into Any Terminal .............................±30mA Peak Current into COM_, NC_, NO_ (pulsed at 1ms, 10% duty cycle).................................
PAGE 3
Fast, Low-Voltage, Dual 4Ω SPDT CMOS Analog Switches (V+ = +4.5V to +5.5V, VIH = +2.4V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 4
MAX4635/MAX4636 Fast, Low-Voltage, Dual 4Ω SPDT CMOS Analog Switches ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued) (V+ = +2.7V to +3.6V, VIH = +2.0V, VIL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 9) PARAMETER COM_ On-Leakage Current (Note 6) SYMBOL ICOM_(ON) CONDITIONS V+ = 3.3V; VCOM_ =1V, 3V; VNO_ or VNC_ = 1V, 3V, or floating MIN TYP MAX TA = +25°C -0.1 ±0.01 0.1 TA = TMIN to TMAX -0.3 UNITS nA 0.
PAGE 5
Fast, Low-Voltage, Dual 4Ω SPDT CMOS Analog Switches TA = +85°C V+ = 1.8V TA = +85°C 3.5 10 RON (Ω) 6 V+ = 3.0V RON (Ω) 2.5 V+ = 2.5V 8 3.0 2.0 V+ = 4.5V 4 2.5 TA = -40°C TA = +25°C 2 TA = -40°C TA = +25°C V+ = 5.0V 1.5 2.0 0 1 2 3 4 0 5 0.5 1.0 1.5 2.0 2.5 3.0 0 1 2 4 3 VCOM (V) VCOM (V) ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE (V+ = +5V) CHARGE INJECTION vs. VCOM TURN-ON/OFF TIME vs. SUPPLY VOLTAGE 25 MAX4636-04 0.10 20 0.05 ICOM(ON) 0 40 15 Q (pC) -0.
PAGE 6
Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) TOTAL HARMONIC DISTORTION vs. FREQUENCY FREQUENCY RESPONSE 0 MAX4636-11 0.12 MAX4636-10 10 0.10 -10 BANDWIDTH -20 0.08 THD (%) LOSS (dB) MAX4635/MAX4636 Fast, Low-Voltage, Dual 4Ω SPDT CMOS Analog Switches -30 OFF-ISOLATION -40 -50 0.06 0.04 -60 0.02 CROSSTALK -70 600Ω IN AND OUT V+ = 5V 0 -80 0.01 0.
PAGE 7
Fast, Low-Voltage, Dual 4Ω SPDT CMOS Analog Switches V+ LOGIC INPUT NC_ or NO_ VIN t r < 5ns t f < 5ns VIH + 0.5V V+ 50% 0 VOUT COM_ t OFF NO_ or NC_ LOGIC INPUT CL RL IN_ MAX4635/MAX4636 MAX4635/MAX4636 VOUT SWITCH OUTPUT GND 0.9 ✕ V0UT 0.9 ✕ VOUT 0 t ON LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. CL INCLUDES FIXTURE AND STRAY CAPACITANCE. Figure 1a. Switching Time MAX4635/MAX4636 t r < 5ns t f < 5ns V+ VIH + 0.
PAGE 8
MAX4635/MAX4636 Fast, Low-Voltage, Dual 4Ω SPDT CMOS Analog Switches Logic Inputs Detailed Description The MAX4635/MAX4636 logic inputs (IN1, IN2) can be driven up to +5.5V, regardless of the voltage on V+. This allows interfacing to 5V logic signals while operating with a +3.3V supply voltage without external level translation. The MAX4635/MAX4636 are low-on-resistance (RON), low-voltage, dual SPDT analog switches that operate from a +1.8V to +5.5V supply.
PAGE 9
Fast, Low-Voltage, Dual 4Ω SPDT CMOS Analog Switches TRANSISTOR COUNT: 239 PROCESS: CMOS D1 V+ MAX4635 MAX4636 NO_ COM_ Vg GND D2 Figure 5. Overvoltage Protection Using Two External Blocking Diodes On-resistance increases slightly at low supply voltages. Maximum supply voltage (V+) must not exceed +6V. Adding protection diode D2 causes the logic threshold to be shifted relative to GND. Protection diodes D1 and D2 also protect against some overvoltage situations.
PAGE 10
Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) e 10LUMAX.EPS MAX4635/MAX4636 Fast, Low-Voltage, Dual 4Ω SPDT CMOS Analog Switches 4X S 10 10 INCHES H ÿ 0.50±0.1 0.6±0.1 1 1 0.6±0.1 BOTTOM VIEW TOP VIEW D2 MILLIMETERS MAX DIM MIN 0.043 A 0.006 A1 0.002 A2 0.030 0.037 D1 0.116 0.120 0.114 0.118 D2 0.116 E1 0.120 E2 0.114 0.118 H 0.187 0.199 L 0.0157 0.
PAGE 11
Fast, Low-Voltage, Dual 4Ω SPDT CMOS Analog Switches 6, 8, &10L, QFN THIN.EPS L A D D2 A2 PIN 1 ID 1 N 1 C0.35 b E PIN 1 INDEX AREA [(N/2)-1] x e REF. E2 DETAIL A e k A1 CL CL L L e e A DALLAS SEMICONDUCTOR PROPRIETARY INFORMATION TITLE: PACKAGE OUTLINE, 6, 8 & 10L, TDFN, EXPOSED PAD, 3x3x0.80 mm NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY APPROVAL DOCUMENT CONTROL NO. 21-0137 REV. 1 D 2 COMMON DIMENSIONS SYMBOL A MIN. 0.70 0.80 D 2.90 MAX. 3.10 E 2.90 3.10 A1 0.