FSAU3157 datasheet(3/11 Pages) FAIRCHILD

Part #	FSAU3157

Description	Low Voltage SPDT Analog Switch with 2V Undershoot Protection

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

Direct Link	http://www.fairchildsemi.com

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Absolute Maximum Ratings(Note 1)

Recommended Operating

Conditions (Note 3)

Note 1: Absolute maximum ratings are DC values beyond which the device may be

damaged or have its useful life impaired. The datasheet specifications should be met,

without exception, to ensure that the system design is reliable over its power supply,

temperature, and output/input loading variables. Fairchild does not recommend oper-

ation outside datasheet specifications.

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

and output diode current ratings are observed.

Note 3: Control input must be held HIGH or LOW, it must 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 Ports).

Note 5: Parameter is characterized but not tested in production.

Note 6:

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

Supply Voltage (VCC)

0.5V to 7.0V

DC Switch Voltage (VS) (Note 2)

0.5V to VCC 0.5V

DC Input Voltage (VIN) (Note 2)

0.5V to 7.0V

DC Input Diode Current (IIK)

@ (IIK) VIN 0V

50 mA

DC Output Current (IOUT)

128 mA

DC VCC or Ground Current (ICC/IGND)

r100 mA

Storage Temperature Range (TSTG)

65qC to 150qC

Junction Temperature under Bias (TJ)

150

qC

Junction Lead Temperature (TL)

(Soldering, 10 seconds)

260

qC

Power Dissipation (PD) @ 85qC

180 mW

Supply Voltage Operating (VCC)

1.65V to 5.5V

Control Input Voltage (VIN)0V to VCC

Switch Input Voltage (VIN)0V to VCC

Output Voltage (VOUT)0V to VCC

Operating Temperature (TA)

40qC to 85qC

Input Rise and Fall Time (tr, tf)

Control Input VCC 2.3V - 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 (

TJA)

350

qC/W

Symbol

Parameter

VCC

TA 25qCTA 40qC to 85qC

Units

Conditions

(V)

Min

Typ

Max

Min

Max

VIH

HIGH Level

1.65

1.95

0.75 VCC

V

Input Voltage

2.3

5.5

0.7 VCC

VIL

LOW Level

1.65

1.95

0.25 VCC

V

Input Voltage

2.3

5.5

0.3 VCC

IIN

Input Leakage Current

0

5.5

r0.05

r0.1

r1

PA0 d VIN d 5.5V

IOZ

OFF State Leakage Current

1.65

5.5

r0.05

r0.1

r1

PA0 d A, B d VCC

RON

Switch On Resistance

4.5

3.0

15.0

:

VIN 0V, IO 30 mA

(Note 4)

5.0

15.0

:

VIN 2.4V, IO 30 mA

7.0

15.0

:

VIN 4.5V, IO 30 mA

3.0

4.0

20.0

:

VIN 0V, IO 24 mA

10.0

20.0

:

VIN 3V, IO 24 mA

2.3

5.0

30.0

:

VIN 0V, IO 8 mA

13.0

30.0

:

VIN 2.3V, IO 8 mA

1.65

6.5

50.0

:

VIN 0V, IO 4 mA

17.0

50.0

:

VIN 1.65V, IO 4 mA

ICC

Quiescent Supply Current

5.5

1.0

10.0

PA

VIN VCC or GND

All Channels ON or OFF

IOUT 0

Analog Signal Range

VCC

0VCC

V

RRANGE

On Resistance

4.5

25.0

:

IA 30 mA, 0 d VBn d VCC

Over Signal Range

3.0

50.0

IA 24 mA, 0 d VBn d VCC

(Note 4)(Note 8)

2.3

100

IA 8 mA, 0 d VBn d VCC

1.65

300

IA 4 mA, 0 d VBn d VCC

'RON

On Resistance Match

4.5

0.15

:

IA 30 mA, VBn 3.15

Between Channels

3.0

0.2

IA 24 mA, VBn 2.1

(Note 4)(Note 5)(Note 6)

2.3

0.5

IA 8 mA, VBn 1.6

1.65

0.5

IA 4 mA, VBn 1.15

VIKU

Voltage Undershoot

5.5

2.0

V

0.0 mA

t IIN t 50 mA, OE 5.5V

Rflat

On Resistance Flatness

5.0

6.0

:

IA 30 mA, 0 d VBn d VCC

(Note 4)(Note 5)(Note 7)

3.3

12.0

IA 24 mA, 0 d VBn d VCC

2.5

28.0

IA 8 mA, 0 d VBn d VCC

1.8

125

IA 4 mA, 0 d VBn d VCC

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