MAX4511CSE データシートの表示（PDF） - Maxim Integrated

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MAX4511CSE

Quad, Rail-to-Rail, Fault-Protected, SPST Analog Switches

Maxim Integrated 

Quad, Rail-to-Rail, Fault-Protected,

SPST Analog Switches

Bipolar Supplies

The MAX4511/MAX4512/MAX4513 operate with bipolar

supplies between ±4.5V and ±18V. The V+ and V- sup-

plies need not be symmetrical, but their difference can

not exceed the absolute maximum rating of 44V.

Single Supply

The MAX4511/MAX4512/MAX4513 operate from a sin-

gle supply between +9V and +36V when V- is connect-

ed to GND.

High-Frequency Performance

In 50Ω systems, signal response is reasonably flat up to

50MHz (see Typical Operating Characteristics). Above

20MHz, the on-response has several minor peaks that

are highly layout dependent. The problem with high-fre-

quency operation is not turning the switch on, but turn-

ing it off. The off-state switch acts like a capacitor and

passes higher frequencies with less attenuation. At

10MHz, off isolation is about -42dB in 50Ω systems,

becoming worse (approximately 20dB per decade) as

frequency increases. Higher circuit impedances also

make off isolation worse. Adjacent channel attenuation

is about 3dB above that of a bare IC socket and is due

entirely to capacitive coupling.

Test Circuits/Timing Diagrams

V+

V+

NO_ OR NC_

+10V

MAX4511

MAX4512

VIN_

IN_ MAX4513 COM_

50Ω

GND V-

2k

VOUT

10pF

V-

V+

VIN_

50%

0V

+10V

VOUT

90%

0V

tOFF

90%

tON

V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.

Figure 2. Switch Turn-On/Turn-Off Times

V+

VIN_

IN_

IN_

50Ω

V+

NO_

NC_

MAX4513

COM_

COM_

GND V-

V-

+10V

VOUT

2k

10pF

V- IS CONNECTED TO GND (0V) FOR SINGLE-SUPPLY OPERATION.

V+

VIN_

0V

VNO_, VNC_

VOUT

0V

tR < 5ns

tF < 5ns

50%

80%

tOPEN

Figure 3. MAX4513 Break-Before-Make Interval

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