MCP3901A0-E/SS Microchip Technology, MCP3901A0-E/SS Datasheet - Page 42

• Manufacturer Part Number: MCP3901A0-E/SS
• Description: IC ENERGY METER AFE 2CH 20-SSOP
• Manufacturer: Microchip Technology

Specifications of MCP3901A0-E/SS

• Number Of Bits: 24
• Number Of Channels: 2
• Power (watts): 10mW
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.7 V ~ 5.5 V
• Package / Case: 20-SSOP (0.200", 5.30mm Width)
• Ic Function: Analog Front End Device IC
• Supply Voltage Range: 4.5V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: SSOP
• No. Of Pins: 20
• No. Of Channels: 2
• Input Voltage: 2.2 V to 2.6 V
• Mounting Style: SMD/SMT
• Supply Voltage Max: 5.5V
• Rohs Compliant: Yes
• Interface Type: SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP3901
7.1
The ADC Channel Data Output registers always con-
tain the most recent A/D conversion data for each
channel. These registers are read-only. They can be
accessed independently or linked together (with
READ<1:0> bits). These registers are latched when an
REGISTER 7-1:
DS22192C-page 42
bit 23
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 23-0
DATA_CHn
DATA_CHn
DATA_CHn
<23>
<15>
R-0
R-0
R-0
<7>
ADC Channel Data Output
Registers
DATA_CHn<23:0>
DATA_CHn
DATA_CHn
DATA_CHn
<22>
<14>
R-0
R-0
R-0
<6>
CHANNEL OUTPUT REGISTERS: ADDRESS 0x00-0x02: CH0; 0x03-0x05; CH1
W = Writable bit
‘1’ = Bit is set
DATA_CHn
DATA_CHn
DATA_CHn
<21>
<13>
<5>
R-0
R-0
R-0
DATA_CHn
DATA_CHn
DATA_CHn
<20>
<12>
<4>
R-0
R-0
R-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
DATA_CHn
DATA_CHn
DATA_CHn
ADC read communication occurs. When a data ready
event occurs during a read communication, the most
current ADC data is also latched to avoid data corrup-
tion issues. The three bytes of each channel are
updated synchronously at a DRCLK rate. The three
bytes can be accessed separately, if needed, but are
refreshed synchronously.
<19>
<11>
<3>
R-0
R-0
R-0
DATA_CHn
DATA_CHn
DATA_CHn
<18>
<10>
<2>
R-0
R-0
R-0
© 2010 Microchip Technology Inc.
x = Bit is unknown
DATA_CHn
DATA_CHn
DATA_CHn
<17>
<9>
<1>
R-0
R-0
R-0
DATA_CHn
DATA_CHn
DATA_CHn
<16>
R-0
R-0
<8>
R-0
<0>
bit 16
bit 8
bit 0