NC7SBU3157_08 datasheet(5/10 Pages) FAIRCHILD

Part #	NC7SBU3157

Description	Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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NC7SBU3157, FSAU3157 Rev. 1.0.4

5

AC Electrical Characteristics

Notes:

8. This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than

the RC delay of the on resistance of the switch and the 50pF load capacitance, when driven by an ideal voltage

source (zero output impedance).

9. Guaranteed by design.

10. Off Isolation = 20 log10 [VA / VBn].

Capacitance

TA = +25°C, f = 1MHz. Capacitance is characterized, but not tested in production.

Symbol

Parameter

Conditions

VCC

(V)

TA = +25°C

TA = –40°C to

+85°C

Units Figure

Min. Typ. Max. Min.

Max.

tPHL,

tPLH

Propagation Delay

Bus-to-Bus(8)

VI = OPEN

1.65 to 1.95

ns

Figure 7

Figure 8

2.3 to 2.7

1.2

3.0 to 3.6

0.8

4.5 to 5.5

0.3

tPZL,

tPZH

Output Enable Time

Turn-On Time

(A to Bn)

VI = 2 x VCC for tPZL

VI = 0V for tPZH

1.65 to 1.95 7.0

23.0

7.0

24.0

ns

Figure 7

Figure 8

2.3 to 2.7

3.5

13.0

3.5

14.0

3.0 to 3.6

2.5

6.9

2.5

7.6

4.5 to 5.5

1.7

5.2

1.7

5.7

tPLZ,

tPHZ

Output Disable Time

Turn-Off Time

(A Port to B Port)

VI = 2 x VCC for tPLZ

VI = 0V for tPHZ

1.65 to 1.95 3.0

12.5

3.0

13.0

ns

Figure 7

Figure 8

2.3 to 2.7

2.0

7.0

2.0

7.5

3.0 to 3.6

1.5

5.0

1.5

5.3

4.5 to 5.5

0.8

3.5

0.8

3.8

tBBM

Break-Before-Make

Time(9)

1.65 to 1.95 0.5

0.5

ns

Figure 9

2.3 to 2.7

0.5

3.0 to 3.6

0.5

4.5 to 5.5

0.5

Q

Charge Injection(9)

CL = 0.1nF, VGEN = 0V,

5.0

7.0

pC

Figure 10

RGEN = 0Ω

3.3

3.0

OIRR

Off Isolation(10)

RL = 50Ω, f = 10MHz

1.65 to 5.5

–57.0

dB

Figure 11

Xtalk

Crosstalk

RL = 50Ω, f = 10MHz

1.65 to 5.5

–54.0

dB

Figure 12

BW

–3dB Bandwidth

RL = 50Ω

1.65 to 5.5

250

MHz Figure 15

THD

Total Harmonic

Distortion(9)

RL = 600Ω, 0.5VPP,

f = 20Hz to 20KHz

5.0

.011

%

Symbol

Parameter

Conditions

Typ.

Max.

Units

Figure

CIN

Control Pin Input Capacitance

VCC = 0V

2.3

pF

CIO-B

B Port Off Capacitance

VCC = 5.0V

6.5

pF

Figure 13

CIOA-ON A Port Capacitance When Switch Is Enabled

VCC = 5.0V

18.5

pF

Figure 14

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