NC7WB66K8X - FAIRCHILD SEMICONDUCTOR

May 2000

Revised December 2005

FSA266 • NC7WB66 Low Voltage Dual SPST Normally Open Analog Switch or 2-Bi t Bus Switch

FSA266 • NC7WB66

Low Voltage Dual SPST

Normally Open Analog Switch or 2-Bit Bus Switch

General Description

The FSA266 or NC7WB66 is an ultra high-speed (UHS) dual

single-pole/single-throw (SPST) analog switch or 2-bit bus

switch. The device is fabricated with advanced sub-micron

CMOS technology to achieve high speed enable and disable

times and low On Resistance over a broad VCC range. The

device is specified to operate over the 1.65 to 5.5V VCC operat-

ing range. The device is organized as a dual switch with inde-

pendent CMOS compatible switch enable (OE) controls. When

OE is HIGH, the switch is ON and Port A is connected to Port B.

When OE is LOW, the switch is OPEN and a high-impedance

state exists between the two ports. The enable inputs tolerate

voltages up to 5.5V independent of the VCC operating range.

Features

Useful in both analog and digital applications

Space saving US8 surface mount package

MicroPak

Pb-Free leadless package

Typical 7

On Resistance @ 5V VCC

Broad VCC operating range: 1.65V to 5.5V

Rail-to-Rail signal handling

Power down high impedance control inputs

Control inputs are overvoltage tolerant

Control inputs are CMOS compatible

300 MHz



3dB bandwidth

Ordering Code:

Pb-Free package per JEDEC J-STD-020B.

MicroPak

is a trademark of Fairchild Semiconductor Corporation.

Product Package Description Supplied AsOrder Package Code

Number Number Top Mark

FSA266K8X MAB08A WB66 8-Lead US8, JEDEC MO-187, Variat ion CA 3.1mm Wide 3K Units on Tape and Reel

FSA266L8X MAC08A P4 Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5K Units on Tape and Reel

NC7WB66K8X MAB08A WB66 8-Lead US8, JEDEC MO-187, Variat ion CA 3.1mm Wide 3K Units on Tape and Reel

NC7WB66L8X MAC08A P4 Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5K Units on Tape and Reel

www.fairchildsemi.com 2

FSA266 • NC7WB66

Logic Symbol

Analog Symbol

Pin Descriptions

Function Table

HIGH Logic Level

LOW Logic Level

Connection Diagrams

Pin Assignments for US8

(Top View)

Pad Assignment s for MicroPak

(Top Th r ough View )

Pin Names Description

A Switch Port A

B Switch Port B

OE Control Input

Switch Enable Input

(OE) Function

L Disconnect

H B Connected to A

3www.fairchildsemi.com

FSA266 • NC7WB66

Absolute Maximum Ratings(Note 1) Recommended Operating

Conditions (Note 3)

Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety

of the device cannot be guaranteed. The device should not be operated at these lim-

its. The parametric values defined in the Electrical Characteristics tables are not

guaranteed at the absolute maximum ratings. The “Recommended Operating Condi-

tions” table will define the conditions for actual device operation.

Note 2: The input and output negative voltage ratings may be exceeded if the input

and output diode current ratings are observed.

Note 3: Unused inputs must be held HIGH or LOW. They may not float.

DC Electrical Characteristics

Note 4: Measured by the voltage drop between A and B pins at the indicated current through the switch. On Resistance is determined by the lower of the

voltages on the two (A or B) pins.

Note 5: Guaranteed by design.

Note 6: Flatness is defined as the difference between the minimum and maximum value of ON Resistance over the specified range of conditions.

Supply Voltage (VCC)



0.5V to



7.0V

DC Switch Vo ltage (VS)



0.5V to VCC



0.5V

DC Input Voltage (VIN) (Note 2)



0.5V to



7.0V

DC Input Diode Current

@ (IIK) VIN





50 mA

DC Switch Output Current (IOUT)

128 mA

DC VCC or Ground Current (ICC/IGND)

100 mA

S torage Temperature Range (TSTG)



C to



150

Junction Lead Temperature

under Bias (TJ)



150

Junction Lead Temperature (TL)

(Soldering, 10 Seconds)



260

Power Dissipation (PD) @



SC70-6 250 mW

Supply Voltage (VCC) 1.65V to 5.5V

Control Input V olt age (VIN) 0V to 5.5V

Switch Input Voltage (VIN) 0V to V CC

Switch Output Voltage (VOUT) 0V to V CC

Operating Temperature (TA)



C to



Input Rise and Fall Time (tr, tf)

Control Input VCC

1.65V



2.7V 0 ns/V to 20 ns/V

Control Input VCC

3.0V



3.6V 0 ns/V to 10 ns/V

Control Input VCC

4.5V



5.5V 0 ns/V to 5 ns/V

Thermal Resistance (

JA) 250

C/W

Symbol Parameter VCC TA





C to



CUnits Conditions

(V) Min Typ Max Min Max

VIH HIGH Level Input Voltage 1.65 to 1.95 0.75 VCC 0.75 VCC V

2.3 to 5.5 0.7 VCC 0.7 VCC

VIL LOW Level Input Voltage 1.65 to 1.95 0.25 VCC 0.25VCC V

2.3 to 5.5 0.3 VCC 0.3 VCC

IIN Input Leakage Current 0 to 5.5

0.1

1.0

VIN

5.5V

IOFF Switch OFF Leakage Current 1.65 to 5.5

0.1

1.0

A, B

VCC

RON Switch On Resistance 4.5 6.0 10.0 10.0

0V, IO

30 m A

(Note 4) 7.0 13.5 13.5 VI

2.4V, IO



30 mA

6.0 10.0 10.0 VI

4.5V, IO



30 mA

3.0 7.5 15.0 15.0

0V, IO

24 m A

8.5 15.0 15.0 VI

3V, IO



24 mA

2.3 9.0 20.0 20.0

0V, IO

8 mA

10.5 20.0 20.0 VI

2.3V, IO



8 mA

1.65 12.5 30.0 30.0

0V, IO

4 mA

17.0 30.0 30.0 VI

1.65V, IO



4 mA

ICC Quiescent Supply Current 5.5 1.0 10.0

AVIN

VCC or GND

All Channels ON or OFF IOUT

Analog Signal Range VCC 0V

CC 0V

CC V

RRange On Resistance Over 4.5 8.0 15.0 15.0



30 mA, 0

VCC

Signal Range 3.0 15.0 30.0 30.0 IO



24 mA, 0

VCC

(Note 4)(Note 5) 2.3 45.0 75.0 75.0 IO



8 mA, 0

VCC

1.65 150 275 275 IO



4 mA, 0

VCC

RON On Resistance Match 4 .5 0.2



30 mA, VI

3.15

Between Channels 3.0 0.2 IO



24 mA, VI

2.1

(Note 4)(Note 7) 2.3 0.5 IO



8 mA, VI

1.6

1.65 0.6 IO



4 mA, VI

1.15

Rflat On Resistance Flatness 4.5 2.5 6.0 6.0 IO



30 mA, 0

VCC

(Note 4)(Note 5)(Note 6) 3.0 8.0 17.5 17.5 IO



24 mA, 0

VCC

2.3 33.0 60.0 60.0 IO



8 mA, 0

VCC

1.65 135 250 250 IO



4 mA, 0

VCC

www.fairchildsemi.com 4

FSA266 • NC7WB66

DC Electrical Characteristics (Continued)

Note 7:

RON

RON max



RON min measured at identical VCC, temperature and voltage levels.

AC Electrical Characteristics

Note 8: This parameter is guaranteed by design. The switch contributes no propagation delay other than the RC delay of the On Resistance of the switch and the 50 pF l oad

capacitance.

Note 9: Guaranteed by design.

Note 10: Off Isolation

20 log10 [VA/VBn]

Capacitance

Symbol Parameter VCC TA



C to



CUnits Conditions Figure

(V) Min Typ Max Number

tPHL, tPLH Propagation Delay Bus-to-Bus 4.5 to 5.5 0.35 1.0

(Note 8) 3.0 to 3.6 0.7 1.5 VI

OPEN Figures

1, 2

2.3 to 2.7 1.1 2.5 CL

50 pF, RU

500

1.65 to 1.95 2.0 4.0

tPZL, tPZH Output Enable Time 4.5 to 5.5 0.8 2.0 3.2

Turn on Time 3.0 to 3.6 1.2 2.5 3.9 VI

0V for tPZH Figures

1, 2

2.3 to 2.7 1.5 3.2 5.6 VI

2 x VCC for tPZL

1.65 to 1.95 2.5 5.7 10.0 CL

50 pF, RU

500

tPLZ, tPHZ Output Disable Time 4.5 to 5.5 0.8 2.6 4.1

Turn Off Time 3.0 to 3.6 1.5 3.4 5.0 VI

0V for tPHZ Figures

1, 2

2.3 to 2.7 2.0 4.2 6.9 VI

2 x VCC for tPLZ

1.65 to 1.95 3.0 6.2 10.5 CL

50 pF, RU

500

Q Charge Injection (Note 9) 1.65 to 5.5 pC CL

0.1 nF, VGEN

0V, Figure 3

RGEN

, f

1 MHz

OIRR Off Isolation (Note 10) 1.65 to 5.5 -55.0 dB RL

, CL

5 pF, Figure 4

10 M Hz

Xtalk Crosstalk 1.65 to 5.5



70.0 dB RL

, CL

5 pF, Figure 5

10 M Hz



3dB Bandwidth 1.65 to 5.5

300 MHz RL

Figure 8

THD Total Harmonic Distortion 5 .016 % RL

600

(Note 9) 0.5 VP-P

600 Hz to 20 KHz

Symbol Parameter Typ Max Units Conditions Figures

CIN Control Pin Input Capacitance 2.5 pF VCC

CI/O ( OFF) Switch Port Off Capacitance 5.0 pF VCC

5.0V Figure 6

CI/O (ON) Switch Port Capacitance when Switch is Enabled 10.0 pF VCC

5.0V Figure 7

5www.fairchildsemi.com

FSA266 • NC7WB66

AC Loading and Waveforms

Input driven by 50

source terminated in 50

CL includes load and stray capacitance.

Input PRR

1.0 MHz; tw

500 ns

FIGURE 1. AC Test Circuit

FIGURE 2. AC W aveforms

FIGURE 3. Charge Injection Test

www.fairchildsemi.com 6

FSA266 • NC7WB66

AC Loading and Waveforms (Continued)

FIGURE 4. Off Isolation FIGURE 5. Crosstalk

FIGURE 6. Channel Of f Capacita nce FIGURE 7. Channel On Capacitance

FIGURE 8. Bandwidth

7www.fairchildsemi.com

FSA266 • NC7WB66

Tape and Reel Specification

TAPE FORMAT for US8

TAPE DIMENSIONS inches (millimeters)

TAPE FORMAT for MicroPak

TAPE DIMENSIONS inches (millimeters)

Package Tape Number Cavity Cover Tape

Designator Section Cavities Status Status

Leader (S tart End) 125 (typ) Empty Sealed

K8X Carrier 250 Filled Sealed

Trailer (Hub End) 75 (typ) Empty Sealed

Package Tape Number Cavity Cover Tape

Designator Section Cavities Status Status

Leader (S tart End) 125 (typ) Empty Sealed

L8X Carrier 250 Filled Sealed

Trailer (Hub End) 75 (typ) Empty Sealed

www.fairchildsemi.com 8

FSA266 • NC7WB66

REEL DIMENSIONS inches (millimeters)

Tape SizeABCDN W1 W2 W3

8 mm 7.0 0.059 0.512 0. 795 2.165 0.331



0.059/



0.000 0.567 W1



0.078/



0.039

(177.8) (1.50) (13.00) (20. 20) (55.00) (8.40



1.50/



0.00) (14.40) (W1



2.00/



1.00)

9www.fairchildsemi.com

FSA266 • NC7WB66

Physical Dimensions inches (millimeters) unless otherwise noted

8-Lead US8, JEDEC MO-187 , Variati on CA 3.1mm Wide

Package Number MAB08A

www.fairchildsemi.com 10

FSA266 • NC7WB66

Physical Dimensions inches (millimeters) unless otherwise noted (Continued)

Pb-Free 8-Lead MicroPak, 1.6 mm Wide

Package Number MAC08A

11 www.fairchildsemi.com

FSA266 • NC7WB66 Low Voltage Dual SPST Normally Open Analog Switch or 2-Bi t Bus Switch

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY

PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY

ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT

CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES

OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPR OVAL OF FAIRCHILD SEMICONDUCTOR CORPORA TION

As used herein:

1. Life support devices or systems are devices or syste ms

which, (a) are intended for surgical implant into the body, or

(b) support or sustain life, or (c) whose failure to perform

when properly used in accordance with instructions for use

provided in the labeling, can be reasonably expected to

result in significant injury to the user.

2. A critical component is any component of a life support

device or sys tem whose failure to perform can be reason-

ably expected to cause the failure of the life support device

or system, or to affect its safety or effectiveness.

PRODUCT STATUS DEFINITIONS

Definition of terms

Datasheet Identification Product Status Definition

Advance Information Formative or In Design This datasheet contains the design specifications for product develop-

ment. Specif ications may change in any manner without notice.

Preliminary First Production This datasheet contains preliminary data, and supplementary data will

be published at a later date. Fairchild Semiconductor reserves the right

to make changes at any time without notice in order to improve design.

No Identification Needed Full Production This datasheet contains fi nal specifications. Fairchild Semiconduct or

reserves the right to make changes at any time without notice in or der

to improve design.

Obsolete Not In Production This datasheet contains specifications on a p roduct that has been dis-

continued by Fairchild Semiconductor . The datasheet is printed for ref-

erence information only.