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General Description

Maxim’s MAX4655–MAX4658 are medium-voltage

CMOS analog switches with low on-resistance of 10Ω

max, specifically designed to handle large switch cur-

rents. With a switch capability of up to 400mA peak cur-

rent and 300mA continuous current (MAX4655/

MAX4656), and up to 300mA peak current and 150mA

continuous current (MAX4657/MAX4658), these parts

can switch loads as low as 25Ω. They can replace reed

relays with a million times the speed and virtually unlim-

ited number of lifetime cycles. Normal power consump-

tion is only 3mW, whether the switch is on or off. These

parts are TTL/CMOS compatible and will switch any

voltage within its power-supply range.

These are SPST (single-pole/single-throw) switches.

The MAX4655/MAX4657 are normally closed (NC),

while the MAX4656/MAX4658 are normally open (NO).

The difference between the MAX4655/MAX4656 and

the MAX4657/MAX4658 is in the power dissipation of

their packages. Refer to the Absolute Maximum Ratings

and the Electrical Characteristics.

The MAX4655–MAX4658 power-supply range is from

±4.5V to ±20V for dual-supply operation and +9V to

+40V for single-supply operation. These switches can

operate from any combination of supplies, within a 40V

V+ to V- range. They conduct equally well in either direc-

tion and can handle rail-to-rail analog signals. The off-

leakage current is only 1nA max at T

= +25°C. They are

available in 8-pin µMAX

, TDFN, and SO packages, with

exposed paddle options for high-power applications.

Applications

Relay Replacement

Test Equipment

Communication Systems

xDSL Modems

PBX, PABX Systems

Audio Signal Routing

Audio Systems

PC Multimedia Boards

Redundant/Backup Systems

Features

♦ High Continuous Current Handling

300mA (MAX4655/MAX4656)

150mA (MAX4657/MAX4658)

♦ High Peak Current Handling

400mA (MAX4655/MAX4656)

300mA (MAX4657/MAX4658)

♦ 10Ω (max) On-Resistance (±15V supplies)

♦ V

Not Required

♦ 1Ω (max) R

Flatness over Specified Signal

Range

♦ Rail-to-Rail Signal Handling

♦ +12V Single Supply or ±15V Dual Supply

Operation

♦ Pin Compatible with DG417, DG418

MAX4655–MAX4658

High-Current, 10

, SPST, CMOS

Analog Switches

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

TOP VIEW

V-

N.C.

V+

GND

N.C.

COM

μMAX/SO/TDFN

SWITCHES SHOWN FOR LOGIC "0" INPUT

LOGIC SWITCH

OFF

MAX4655/MAX4657

V-

N.C.

V+

GND

N.C.

COM

LOGIC SWITCH

OFF

MAX4656/MAX4658

N.C. = NO CONNECT

NC = NORMALLY CLOSED

MAX4655/MAX4657

MAX4656/MAX4658

μMAX/SO/TDFN

19-1984; Rev 4; 6/07

PART

TEMP RANGE PIN-PACKAGE

TOP

MARK

MAX4655ETA

-40°C to +85°C

8 TDFN-EP*

AKT

MAX4655EUA

-40°C to +85°C

8 µMAX

AAAL

MAX4655ESA

-40°C to +85°C

8 SO —

MAX4656ETA

-40°C to +85°C

8 TDFN-EP*

AKU

MAX4656EUA

-40°C to +85°C

8 µMAX

AAAM

MAX4656ESA

-40°C to +85°C

8 SO —

MAX4657EUA

-40°C to +85°C

8 µMAX —

MAX4657ESA

-40°C to +85°C

8 SO —

MAX4658EUA

-40°C to +85°C

8 µMAX —

MAX4658ESA

-40°C to +85°C

8 SO —

µMAX is a registered trademark of Maxim Integrated Products, Inc.

*EP = Exposed paddle.

Pin Configurations/

Functional Diagrams/Truth Tables

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Summary of content (12 pages)

PAGE 1
9-1984; Rev 4; 6/07 High-Current, 10Ω, SPST, CMOS Analog Switches Maxim’s MAX4655–MAX4658 are medium-voltage CMOS analog switches with low on-resistance of 10Ω max, specifically designed to handle large switch currents. With a switch capability of up to 400mA peak current and 300mA continuous current (MAX4655/ MAX4656), and up to 300mA peak current and 150mA continuous current (MAX4657/MAX4658), these parts can switch loads as low as 25Ω.
PAGE 2
MAX4655–MAX4658 High-Current, 10Ω, SPST, CMOS Analog Switches ABSOLUTE MAXIMUM RATINGS V+ to GND ..............................................................-0.3V to +44V V- to GND ...............................................................-44V to +0.3V V+ to V-...................................................................-0.3V to +44V All Other Pins to GND (Note 1)..................V- - 0.3V to V+ + 0.3V Continuous Current, COM, NO, NC (MAX4655/MAX4656) .........................................
PAGE 3
High-Current, 10Ω, SPST, CMOS Analog Switches (V+ = +15V, V- = -15V, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 7, 8) PARAMETER SYMBOL Charge Injection Q -3dB Bandwidth BW CONDITIONS VGEN = 0; RGEN = 0; CL = 1nF; Figure 4 TA MIN TYP MAX UNITS +25°C 23 pC +25°C 210 MHz Off-Isolation (Note 5) VISO f = 1MHz; RL = 50Ω; Figure 5 +25°C -77 Total Harmonic Distortion THD f = 20Hz to 20kHz, VN_ = 5Vp-p; RL = 600Ω +25°C 0.
PAGE 4
MAX4655–MAX4658 High-Current, 10Ω, SPST, CMOS Analog Switches ELECTRICAL CHARACTERISTICS—Single Supply (V+ = +12V, V- = 0, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 5
High-Current, 10Ω, SPST, CMOS Analog Switches 20 B D 10 D -10 0 E 10 20 TA = -40°C 0 VCOM (V) VCOM (V) 0 VCOM (V) ON-RESISTANCE vs. VCOM AND TEMPERATURE (SINGLE SUPPLY) LEAKAGE CURRENT vs. TEMPERATURE CHARGE INJECTION vs.
PAGE 6
Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) LOGIC-LEVEL THRESHOLD VOLTAGE vs. SUPPLY VOLTAGE ON-RESPONSE 300 MAX4655/58 toc11 2.6 RL = 300Ω CL = 35pF 250 BW = 210MHz -20 200 2.2 VTH (V) -40 OFF-ISOLATION -60 tON/tOFF (ns) 0 3.0 MAX4655/58 toc10 20 TURN-ON/TURN-OFF TIME vs. SUPPLY VOLTAGE (DUAL SUPPLIES) MAX4655/58 toc12 ON-RESPONSE, OFF-ISOLATION vs. FREQUENCY LOSS (dB) 1.8 150 tON 100 -80 tOFF 1.4 V+ = +15V, V- = -15V -120 0.01 0.
PAGE 7
High-Current, 10Ω, SPST, CMOS Analog Switches The MAX4655–MAX4658 are single SPST CMOS analog switches. The CMOS switch construction provides rail-to-rail signal handling while consuming very little power. The switch is controlled by a TTL/CMOS level compatible digital input. The MAX4655/MAX4657 are normally closed switches, and the MAX4656/MAX4658 are normally open switches. These devices can be operated with either single power supplies or dual power supplies.
PAGE 8
MAX4655–MAX4658 High-Current, 10Ω, SPST, CMOS Analog Switches Test Circuits/Timing Diagrams NC OR NO COM V+ TTL/CMOS LEVEL SHIFTER IN NO OR NC GND SENSOR COM V- Figure 2. Block Diagram MAX4655– MAX4658 +15V LOGIC INPUT t R < 20ns t F < 20ns +3V 50% NC OR NO VO CL 35pF RL IN VO SWITCH OUTPUT COM t OFF SWITCH V COM INPUT SWITCH OUTPUT V+ SWITCH INPUT 0 0.9V0 0.9V0 0 t ON LOGIC INPUT GND V- -15V CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
PAGE 9
High-Current, 10Ω, SPST, CMOS Analog Switches MAX4655– MAX4658 +15V C SIGNAL GENERATOR 0dBm C +15V MAX4655– MAX4658 V+ V+ COM COM RL 0V, 2.4V IN CAPACITANCE METER IN 0V f = 1MHz ANALYZER NC OR NO NC OR NO GND V- GND C V- C -15V -15V Figure 7. Channel On-Capacitance Figure 5. Off-Isolation Chip Information C +15V MAX4655– MAX4658 TRANSISTOR COUNT: 45 PROCESS: CMOS V+ COM IN 2.4V CAPACITANCE METER NC OR NO f = 1MHz GND V- C -15V Figure 6.
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.) 6, 8, &10L, DFN THIN.EPS MAX4655–MAX4658 High Current, 10Ω, SPST, CMOS Analog Switches 10 COMMON DIMENSIONS PACKAGE VARIATIONS SYMBOL MIN. MAX. PKG. CODE N D2 E2 e JEDEC SPEC b [(N/2)-1] x e A 0.70 0.80 T633-2 6 1.50±0.10 2.30±0.10 0.95 BSC MO229 / WEEA 0.40±0.05 1.90 REF D 2.90 3.
PAGE 11
High Current, 10Ω, SPST, CMOS Analog Switches E Ø0.50±0.1 8 INCHES DIM A A1 A2 b H c D e E H 0.6±0.1 1 L 1 α 0.6±0.1 S BOTTOM VIEW D MIN 0.002 0.030 MAX 0.043 0.006 0.037 0.014 0.010 0.007 0.005 0.120 0.116 0.0256 BSC 0.120 0.116 0.198 0.188 0.026 0.016 6° 0° 0.0207 BSC 8LUMAXD.EPS 4X S 8 MILLIMETERS MAX MIN 0.05 0.75 1.10 0.15 0.95 0.25 0.36 0.13 0.18 2.95 3.05 0.65 BSC 2.95 3.05 4.78 5.03 0.41 0.66 0° 6° 0.
PAGE 12
Package Information (continued) (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.) DIM A A1 B C e E H L N E H INCHES MILLIMETERS MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050 MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 SOICN .