Over recommended operating supply and temperature ranges unless otherwise specified C1 = C2 = C3 = C4 = Cbp = 0.1µF

Symbol

Parameter

Conditions

Min

(Note 5)

Typ

Max

(Note 5)

Units

V

SLEW

Transition Region Slew Rate T

C

Ω to 7kΩ

Measured from +3V to −3V or vice versa

3

6

30

V/µs

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.

Note 2: Human Body Model, 1.5k

Ω in series with 100pF

Note 4: Typical Values represent the most likely parametric norm.

Note 5: All limits are guaranteed by testing or statistical analysis

Note 6: Machine model, 0

Ω in series with 200pF

Typical Characteristics

Transmitter Output High Voltage vs. Load Capacitance

Transmitter Slew Rate vs. Load Capacitance

20062902

20062903

Application Information

CAPACITOR SELECTION

The recommended capacitors are 0.1µF. However, larger

capacitors for the charge pump may be used to minimized

ripples on V+ and V− pins.

POWER SUPPLY DECOUPLING

In some applications that are sensitive to power supply noise

from the charge pump, place a decoupling capacitor, Cbp,

from V

size as the charge pump capacitors (C1 − C4).

CHARGED PUMP

transmitters. Using capacitor C1, the charge pump converts

+5V to +10V then stores the +10V in capacitor C3. The

charge pump uses capacitor C2 to invert the +10V to −10V.

The −10V is then stored in capacitor C4.

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