MAX4754ETE+ Maxim Integrated Products, MAX4754ETE+ Datasheet - Page 9

• Manufacturer Part Number: MAX4754ETE+
• Description: IC SWITCH QUAD SPDT 16TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX4754ETE+

• Function: Switch
• Circuit: 4 x SPDT
• On-state Resistance: 850 mOhm
• Voltage Supply Source: Single Supply
• Voltage - Supply, Single/dual (±): 1.8 V ~ 5.5 V
• Current - Supply: 0.2µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A
low on-resistance analog switches operate from a single
+1.8V to +5.5V supply. The devices are fully specified
for nominal 3V applications.
The MAX4754/MAX4754A DPDT switch have two logic
control inputs with each input controlling two SPDT
switches. Each switch has a 0.5Ω on-resistance in the
NO and NC terminals making it ideal for switching
audio signals.
The MAX4755 DPDT switch also has four 0.5Ω SPDT
switches with the switch pairs 1 and 2 adding an 11.5Ω
series resistor to the NC terminal. This feature allows
the user to drive an 8Ω speaker as a 32Ω load, allowing
it to be used as an ear speaker. Two logic control
inputs are used to control the four switches.
The MAX4756/MAX4756A has four 0.5Ω SPDT switches
controlled by one logic control input (INA) and EN input
to disable the switches.
The MAX4754/MAX4754A/MAX4755/MAX4756/MAX4756A
logic inputs accept up to +5.5V regardless of the sup-
ply voltage. For example, with a +3.3V supply IN_ can
be driven low to GND and high to +5.5V, which allows
mixed logic levels in a system. Driving the control logic
NO1
NC1
NO2
NC2
NO3
NC3
NO4
NC4
INA
INB
MAX4754A
MAX4754/
Applications Information
_______________________________________________________________________________________
0.5 Ω , Quad SPDT Switches in UCSP/QFN
Detailed Description
INTERNAL
SPEAKER (8Ω)
HEADPHONE
(32Ω)
COM1
COM2
COM3
COM4
Digital Control Inputs
NO1
NC1
NO2
NC2
NO3
NC3
NO4
NC4
INA
INB
11Ω
11Ω
MAX4755
inputs rail-to-rail also minimizes power consumption.
For a +3V supply voltage, the logic thresholds are 0.5V
(low) and 1.4V (high).
For the MAX4756/MAX4756A, drive EN low to enable the
COM_. When EN is high, COM _ is high impedance.
Analog signal inputs over the full voltage range (0V to
V+) are passed through the switch with minimal change
in on-resistance (see the Typical Operating Charac-
teristics). The switches are bidirectional so NO_, NC_,
and COM_ can be either inputs or outputs.
Power-supply bypassing improves noise margin and pre-
vents switching noise from propagating from the V+ sup-
ply to other components. A 0.1µF capacitor connected
from V+ to GND is adequate for most applications.
For the latest application details on UCSP construction,
dimensions, tape carrier information, printed circuit
board techniques, bump-pad layout, and recommend-
ed reflow temperature profile, as well as the latest infor-
mation on reliability testing results, go to the Maxim
website at www.maxim-ic.com/ucsp for the Application
Note: UCSP—A Wafer-Level Chip-Scale Package.
EAR SPEAKER (32Ω)
LOUD SPEAKER (8Ω)
CAR-KIT SPEAKER (8Ω)
COM1
COM2
COM3
COM4
UCSP Applications Information
Typical Operating Circuit
NO1
NC1
NO2
NC2
NO3
NC3
NO4
NC4
INA
EN
Power-Supply Bypassing
MAX4756A
MAX4756/
Analog Signal Levels
HEADPHONE
(32Ω)
INTERNAL
SPEAKER (8Ω)
COM1
COM2
COM3
COM4
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