MAX4996 Maxim, MAX4996 Datasheet - Page 10

• Manufacturer Part Number: MAX4996
• Description: The MAX4996/MAX4996L triple DPDT analog switches operate from a single +2
• Manufacturer: Maxim

Triple DPDT, Low-Capacitance Data Switches
The MAX4996/MAX4996L triple DPDT analog switches
operate from a single +2.5V to +5.5V supply and feature
2.0Ω (typ) on-resistance, low 6pF (typ) on-capacitance,
and low power-supply current consumption. The combi-
nation of low resistance and low capacitance make this
switch ideal for high-frequency applications.
The MAX4996 has an active-high enable input (EN) to
disable the switches, while the MAX4996L has an
active-low enable input (EN) to disable the switches.
The enable input decreases the supply current and also
places the COM_ outputs in a high-impedance state.
Each pair of switches feature a digital-control logic
input: CB_. CB_ controls the position of the switches as
shown in the Pin Configuration/Truth Tables . The
MAX4996/MAX4996L also feature an enable input to
turn all switches on or off. Drive EN low on the
MAX4996, or EN high on the MAX4996L, to disable the
switches. While disabled, the switches are high-imped-
ance and the supply current drops to 0.1µA (typ). To
enable all switches, drive EN high on the MAX4996 or
EN low on the MAX4996L.
Driving all digital inputs (CB_, EN, EN) rail-to-rail mini-
mizes supply current.
The on-resistance of the MAX4996/MAX4996L are very
low and stable as the analog input signals are swept
from ground to V
Characteristics ). These switches are bidirectional,
allowing NO_, NC_, and COM_ to be configured as
either inputs or outputs.
Power-supply bypassing improves noise margin and
prevents switching noise from propagating from the
V
capacitor connected from V
most applications.
Always apply V
10
CC
______________________________________________________________________________________
supply to other components. A 0.1µF ceramic
CC
Applications Information
before the analog signals.
CC
Power-Supply Sequencing
Detailed Description
Power-Supply Bypassing
(see the Typical Operating
Digital Control Inputs
CC
Analog Signal Levels
to GND is adequate for
PROCESS: BiCMOS
EN (EN)
CB12
CB34
CB56
NO1
NC1
NO2
NC2
NO3
NC3
NO4
NC4
NO5
NC5
NO6
NC6
MAX4996/MAX4996L
Functional Diagram
GND
V
CC
Chip Information
COM1
COM2
COM3
COM4
COM5
COM6