MAX4800ACCM(2011) 데이터 시트보기 (PDF) - Maxim Integrated
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MAX4800ACCM
(Rev.:2011)
(Rev.:2011)
Maxim Integrated
MAX4800ACCM Datasheet PDF : 15 Pages
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Low-Charge-Injection, 8-Channel, High-Voltage
Analog Switches with 20MHz Serial Interface
Table 1. Serial Interface Programming
D0
(LSB)
D1
D2
L
H
L
H
L
H
X
XX
X
XX
X = Don’t care.
DATA BITS
D3 D4 D5
L
H
L
H
L
H
X
X
X
X
X
X
D6
D7
(MSB)
L
H
L
H
X
X
X
X
CONTROL BITS
LE
CLR
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
L
X
H
SW0
Off
On
Off
SW1
Off
On
Off
SW2
FUNCTION
SW3 SW4
SW5
Off
On
Off
On
Off
On
Off
On
Hold Previous State
Off
Off
Off
Off
SW6
Off
On
Off
SW7
Off
On
Off
Applications Information
Logic Levels
The devices’ digital interface inputs CLK, DIN, LE, and
CLR are tolerant of up to +6V, independent of the VDD
supply voltage, allowing compatibility with higher volt-
age controllers.
Daisy Chaining Multiple Devices
Digital output DOUT is provided to allow the connection
of multiple devices by daisy-chaining (Figure 3).
Connect each DOUT to the DIN of the subsequent
device in the chain. Connect CLK, LE, and CLR inputs
of all devices, and drive LE logic-low to update all
devices simultaneously. Drive CLR high to open all the
switches simultaneously. Additional shift registers may
be included anywhere in series with the MAX4800A/
MAX4802A data chain.
Supply Sequencing and Bypassing
The devices do not require special sequencing of the
VDD, VPP, and VNN supply voltages; however, analog
switch inputs must be unconnected, or satisfy VNN ≤
(VCOM_, VNO_) ≤ VPP during power-up and power-
down. Bypass VDD, VNN, and VPP to GND with a 0.1µF
ceramic capacitor as close to the device as possible.
PROCESS: BCDMOS
Chip Information
______________________________________________________________________________________ 11
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