MAX1254AEUE+ Maxim Integrated, MAX1254AEUE+ Datasheet - Page 15

• Manufacturer Part Number: MAX1254AEUE+
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1254AEUE+

• Number Of Channels: 10
• Architecture: SAR
• Conversion Rate: 94 KSPs
• Resolution: 12 bit
• Input Type: Single-Ended/Differential
• Interface Type: Serial
• Operating Supply Voltage: 4.5 V to 5.5 V
• Number Of Converters: 1
• Voltage Reference: Internal 4.096 V or External

Table 2. Command Description
Table 3. Channel Address
with Internal Temperature Sensor and V
#### = Channel address code, see Table 3.
xxxx = These bits are ignored for this command.
ADDRESS IN COMMAND
COMMAND
Stand-Alone, 10-Channel, 12-Bit System Monitors
0000####
0010####
0011####
0100####
1000####
1010####
1100####
0001xxxx
0101xxxx
0110xxxx
0111xxxx
1001xxxx
1011xxxx
1101xxxx
1110xxxx
1111xxxx
WORD
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
______________________________________________________________________________________
BYTES TO
DATA BYTES AFTER
COMMAND WORD
DIN
N/A
N/A
N/A
20
0
0
0
0
0
0
0
0
0
2
5
5
FROM DOUT
Internal temperature
BYTES
N/A
N/A
N/A
20
0
3
2
5
5
0
0
0
0
0
0
0
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
INPUT
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
VDD
Manually Trigged Conversion
Read Alarm Register
Read Current Data Register for Selected Channel
Read Current Data Register for All Channels
Read Configuration Register for Selected Channel
Read Global Configuration Registers
Reserved
Reset
Clear Alarm/Fault for Selected Channels
Clear Alarm/Fault for All Channels
Write Current Data Register for Selected Channel
Write Current Data Registers for All Channels
Write Configuration Registers for Selected Channel
Write Global Configuration Registers
Reserved
Reserved
Before beginning a manual conversion, ensure the
scan mode bit in the setup register is zero, because a
logic 1 disables manual conversions. The address bits
in a Manually Triggered Conversion command select
the input channel for conversion (see Table 3). When
performing a differential conversion, use the even chan-
nel address (AIN0, AIN2, AIN4, AIN6); the command is
ignored if odd channel addresses (AIN1, AIN3, AIN5,
AIN7) are used for a differential conversion.
After issuing a Manually Triggered Conversion com-
mand, bring CS high to begin the conversion. To obtain
a correct conversion result, CS must remain high for a
period longer than the reference power-up time (if in
power-down mode) plus the conversion time for the
selected channel configured conversion type (voltage
or temperature). The conversion’s result can then be
read at DOUT by issuing a Read Current Data Register
for Selected Channel command, addressing the con-
verted channel. See Table 3 for channel addresses.
COMMAND DESCRIPTION
Manually Triggered Conversion
(Command Code = 0000)
DD
Monitor
15