MAX4624 查看數據表（PDF） - Maxim Integrated

零件编号

产品描述 (功能)

比赛名单

MAX4624

1Ω, Low-Voltage, Single-Supply SPDT Analog Switches

Maxim Integrated 

1Ω, Low-Voltage, Single-Supply

SPDT Analog Switches

a small-signal diode (D1) as shown in Figure 1. If the

analog signal can dip below GND, add D2. Adding

protection diodes reduces the analog range to a diode

drop (about 0.7V) below V+ (for D1), and a diode drop

above ground (for D2). On-resistance increases slightly

at low supply voltages. Maximum supply voltage (V+)

must not exceed +6V.

Adding protection diode D2 causes the logic threshold

to be shifted relative to GND. TTL compatibility is not

guaranteed when D2 is added.

Protection diodes D1 and D2 also protect against some

overvoltage situations. With Figure 1’s circuit, if the sup-

ply voltage is below the absolute maximum rating, and

if a fault voltage up to the absolute maximum rating is

applied to an analog signal pin, no damage will result.

MAX4624

MAX4625

VIN_

NO

OR NC

LOGIC

INPUT

IN

GND

V+

V+

COM

VOUT

RL

CL

50Ω

35pF

CL INCLUDES FIXTURE AND STRAY CAPACITANCE.

( ) VOUT = VN_

RL

RL + RON

Figure 2. Switching Time

Test Circuits/Timing Diagrams

LOGIC VINH

INPUT VINL

50%

tr < 5ns

tf < 5ns

SWITCH 0V

OUTPUT

tOFF

VOUT 0.9 · V0UT

0.9 · VOUT

tON

LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES

THAT HAVE THE OPPOSITE LOGIC SENSE.

MAX4624

VN_

LOGIC

INPUT

V+

V+

NC

COM

NO

IN

GND

VOUT

RL

50Ω

CL

35pF

CL INCLUDES FIXTURE AND STRAY CAPACITANCE.

LOGIC VINH

INPUT

50%

VINL

VOUT

0.9 · VOUT

tD

Figure 3a. Break-Before-Make Interval (MAX4624 only)

_______________________________________________________________________________________ 7

Share Link: