Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - analogue switches SOT 23 6

General Description

The MAX4647/MAX4648 are dual-supply single-pole/sin-

gle-throw (SPST) switches. On-resistance is 25Ω max and

flat (2Ω max) over the specified signal range. Each switch

can handle rail-to-rail analog signals. Off-leakage current

is only 1nA max at +25°C. They conduct analog or digital

signals equally well in either direction. The primary appli-

cation areas are in the switching and routing of signals in

telecommunications and test equipment.

The MAX4647/MAX4648 are single SPST analog switches.

The MAX4647 has one normally closed (NC) switch, and

the MAX4648 has one normally open (NO) switch. These

devices operate from a single +9V to +36V supply or from

dual ±4.5V to ±20V supplies. The MAX4647/MAX4648 are

available in tiny 6-pin SOT23 packages.

________________________Applications

PBX, PABX Systems

Communication Systems

DSL

Test Equipment

Avionics

Audio Systems

Redundant Systems

Relay Replacement

PC Multimedia Boards

____________________________Features

♦ Low On-Resistance 25Ω max (±15V Supplies)

♦ Guaranteed R

Flatness Over Specified Signal

Range (2Ω max)

♦ V

Logic Supply Not Required

♦ Rail-to-Rail Signal Handling

♦ ±15V and Single 12V Supply Operation

♦ Low Leakage (1nA max)

♦ Fast Switching Speeds

= 100ns

OFF

= 100ns

MAX4647/MAX4648

25Ω SPST Analog Switches in SOT23-6

________________________________________________________________ Maxim Integrated Products 1

V-

GNDIN

16COM

5 V+

MAX4647

SOT23-6

TOP VIEW

LOGIC

SWITCH

OFF

LOGIC

SWITCH

OFF

V-

GNDIN

16COM

5 V+

MAX4648

SOT23-6

Pin Configurations/Functional Diagrams/Truth Tables

19-1880; Rev 1; 1/07

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,

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

PART

TEMP

RANGE

PIN-

PACKAGE

TOP

MARK

PKG

CODE

MAX4647EUT-T+

-40°C to +85°C 6 SOT23 AARV

U 6S N - 1

MAX4648EUT-T+

-40°C to +85°C 6 SOT23 AARW

U 6S N - 1

Ordering Information

+Denotes a lead-free package.

Summary of content (9 pages)

PAGE 1
9-1880; Rev 1; 1/07 25Ω SPST Analog Switches in SOT23-6 The MAX4647/MAX4648 are dual-supply single-pole/single-throw (SPST) switches. On-resistance is 25Ω max and flat (2Ω max) over the specified signal range. Each switch can handle rail-to-rail analog signals. Off-leakage current is only 1nA max at +25°C. They conduct analog or digital signals equally well in either direction. The primary application areas are in the switching and routing of signals in telecommunications and test equipment.
PAGE 2
MAX4647/MAX4648 25Ω SPST Analog Switches in SOT23-6 ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND) V+ ...........................................................................-0.3V, +44.0V V- ............................................................................-44.0V, +0.3V V+ to V-................................................................-0.3V to +44.0V All Other Pins (Note 1)...............................V- - 0.3V to V+ + 0.3V Continuous Current into Any Terminal...................
PAGE 3
25Ω SPST Analog Switches in SOT23-6 (V+ = +15V, V- = -15V, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at T A = +25°C. (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TYP MAX UNITS Off-Isolation VISO CL = 5pF; RL = 50Ω; f = 1MHz; VCOM = 1VRMS; Figure 4 +25°C -92 dB Total Harmonic Distortion THD RL = 600Ω, 5Vp-p, f = 20Hz to 20kHz +25°C 0.
PAGE 4
ELECTRICAL CHARACTERISTICS—Single +12V Supply (continued) (V+ = +12V, V- = 0, VIH = 2.4V, VIL = 0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS Power Supply Range MIN TMIN to TMAX +9 TYP +25°C VIN = 5V Positive Supply Current TA 20 +36 V 75 +25°C VIN = 0 or V+ UNITS 50 TMIN to TMAX I+ MAX 0.
PAGE 5
25Ω SPST Analog Switches in SOT23-6 TOTAL HARMONIC DISTORTION vs.FREQUENCY -20 LOSS (dB) -40 1 DISTORTION (%) -30 OFF-ISOLATION -50 -60 0.1 SIGNAL DISTORTION 0.01 -70 -80 V+ = +15V V- = -15V 5VRMS SIGNAL 600Ω SOURCE AND LOAD 10 MEASUREMENT LIMITS 0.001 V+ = +15V V- = -15V IN = 5V 10 I+, I-, IGND (µA) ON-RESPONSE SUPPLY CURRENT vs. TEMPERATURE 100 MAX4647/48 toc08 -10 100 MAX4647/48 toc07 0 I+, IGND MAX4647/48 toc09 FREQUENCY RESPONSE 1 0.1 I- 0.01 -90 -100 0.
PAGE 6
MAX4647/MAX4648 25Ω SPST Analog Switches in SOT23-6 Applications Information Overvoltage Protection Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the devices. Always sequence V+ on first, then V-, followed by the logic inputs, NO, NC, or COM. If power-supply sequencing is not possible, add two small signal diodes (D1, D2) in series with supply pins (Figure 1).
PAGE 7
25Ω SPST Analog Switches in SOT23-6 V+ MAX4647/MAX4648 MAX4647 MAX4648 ∆VO V+ RGEN VO COM NC OR NO VO VIN CL V GEN GND IN OFF V- VIN VIN = +3V OFF ON V- ON OFF OFF Q = (∆V O )(C L ) VIN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. Figure 3. Charge Injection Test Circuit MAX4647 MAX4648 V+ C SIGNAL GENERATOR MAX4647 MAX4648 V+ C V+ V+ COM COM IN ANALYZER 0 OR 3V NC OR NO GND 0 OR 3V NC OR NO V- RL V- Figure 4.
PAGE 8
25Ω SPST Analog Switches in SOT23-6 MAX4647/MAX4648 Chip Information TRANSISTOR COUNT: 24 PROCESS TECHNOLOGY: CMOS C MAX4647 MAX4648 +15V V+ COM CAPACITANCE METER IN 0 OR 3V f = 1MHz NC OR NO GND V- C -15V Figure 6.
PAGE 9
25Ω SPST Analog Switches in SOT23-6 6LSOT.EPS Revision History Pages changed at Rev 1: 1, 9 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.