NC7SB3157 datasheet(4/11 Pages) FAIRCHILD

Part #	NC7SB3157

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

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

Direct Link	http://www.fairchildsemi.com

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NC7SB3157, FSA3157 Rev. 1.0.2

4

DC Electrical Characteristics

Notes:

3. 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 Ports).

4. Parameter is characterized, but not tested in production.

5.

ΔRON = RON max – RON minimum measured at identical VCC, temperature, and voltage levels.

6. Flatness is defined as the difference between the maximum and minimum value of on resistance over the specified

range of conditions.

7. Guaranteed by design.

Symbol

Parameter

Conditions

VCC (V)

TA = +25°C

TA = –40°C to

+85°C

Units

Min.

Typ.

Max.

Min.

Max.

VIH

High Level

Input Voltage

1.65 – 1.95 0.75 VCC

0.75 VCC

V

2.3 – 5.5

0.7 VCC

VIL

Low Level

Input Voltage

1.65 – 1.95

0.25 VCC

V

2.3 – 5.5

0.3 VCC

IIN

Input Leakage

Current

0

≤ VIN ≤ 5.5V

0 – 5.5

±0.05

±0.1

±1

µA

IOFF

Off State Leakage

Current

0

≤ A, B ≤ VCC

1.65 – 5.5

±0.05

±0.1

±1

µA

RON

Switch On

Resistance(3)

VIN = 0V, IO = 30mA

4.5

3.0

7.0

Ω

VIN = 2.4V, IO = –30mA

5.0

12.0

VIN = 4.5V, IO = –30mA

7.0

15.0

VIN = 0V, IO = 24mA

3.0

4.0

9.0

VIN = 3V, IO = –24mA

10.0

20.0

VIN = 0V, IO = 8mA

2.3

5.0

12.0

VIN = 2.3V, IO = –8mA

13.0

30.0

VIN = 0V, IO = 4mA

1.65

6.5

20.0

VIN = 1.65V, IO = –4mA

17.0

50.0

ICC

Quiescent Supply

Current;

All Channels On or

Off

VIN = VCC or GND IOUT = 0

5.5

1

10

µA

Analog Signal

Range

VCC

0VCC

V

RRANGE

On Resistance Over

Signal Range (3, 7)

IA = –30mA, 0 ≤ VBn ≤ VCC

4.5

25.0

Ω

IA = –24mA, 0 ≤ VBn ≤ VCC

3.0

50.0

IA = –8mA, 0 ≤ VBn ≤ VCC

2.3

100

IA = –4mA, 0 ≤ VBn ≤ VCC

1.65

300

ΔRON

On Resistance

Match Between-

Channels(3, 4, 5)

IA = –30mA, VBn = 3.15

4.5

0.15

Ω

IA = –24mA, VBn 2.1

3.0

0.2

IA = –8mA, VBn = 1.6

2.3

0.5

IA = –4mA, VBn = 1.15

1.65

0.50

Rflat

On Resistance

Flatness(3, 4, 6)

IA = –30mA, 0 ≤ VBn ≤ VCC

5.0

6.0

Ω

IA = –24mA, 0 ≤ VBn ≤ VCC

3.3

12.0

IA = –8mA, 0 ≤ VBn ≤ VCC

2.5

28.0

IA = –4mA, 0 ≤ VBn ≤ VCC

1.8

125

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