MAX1154BEUE-T Maxim Integrated, MAX1154BEUE-T Datasheet - Page 18

• Manufacturer Part Number: MAX1154BEUE-T
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX1154BEUE-T

• Number Of Channels: 10
• Architecture: SAR
• Conversion Rate: 94 KSPs
• Resolution: 10 bit
• Input Type: Single-Ended/Differential
• Snr: Yes
• Interface Type: Serial
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-16
• Maximum Power Dissipation: 696 mW
• Minimum Operating Temperature: - 40 C
• Number Of Converters: 1
• Voltage Reference: Internal 4.096 V or External

Stand-Alone, 10-Channel, 10-Bit System Monitors
with Internal Temperature Sensor and V
Table 4. Channel-Enable Register Format
Table 5. Input Configuration Register Format
Table 6. Channel Configuration Coding (3 Bits/Channel Pair)
The Write-Selected Channel Configuration Register com-
mand, 1100, writes to the three channel configuration
registers for the addressed channel (see Table 3). The
first register to be written is the upper threshold (2 bytes),
followed by the lower threshold (2 bytes), ending with the
channel configuration register (1 byte), all MSB first.
Writing to the configuration registers resets the alarm reg-
ister bits and the fault counters for the addressed chan-
nel. See the Channel Registers section for more details.
The Write Global Configuration Registers command,
1101, writes to three registers: the channel-enable reg-
ister (2 bytes), the input configuration register (2 bytes),
and the setup register (1 byte). The command address
bits are ignored. See the Global Configuration
Registers section for more details.
The global configuration registers consist of the chan-
nel-enable register, the input configuration register, and
the setup register. These registers hold configuration
data common to all channels.
18
(MSB)
(MSB)
TEMP
AIN0 and AIN1 configuration
CODE
B11
B11
000
001
010
011
100
101
110
111
______________________________________________________________________________________
Global Configuration Registers
Write-Selected Channel Configuration
Write Global Configuration Registers
Single-ended input (power-up state)
Single-ended input
Single-ended, external temperature sensor input
Single-ended, external temperature sensor input
Differential unipolar encoded, positive input
Differential bipolar encoded, positive input
Differential external temperature sensor, positive input
Reserved
B10
V
B10
Registers (Command Code 1100)
DD
AIN0, AIN2, AIN4, AIN6 CONFIGURATION
AIN0
B9
B9
(Command Code 1101)
AIN2 and AIN3 configuration
AIN1
B8
B8
AIN2
B7
B7
AIN3
B6
B6
AIN4 and AIN5 configuration
The channel-enable register (Table 4) controls which
channels are converted while in automatic scan mode.
The register contents are ignored for manual conver-
sion commands. Each input channel has a correspond-
ing bit in the channel-enable register. A logic high
enables the corresponding analog input channel for
conversion, while a logic low disables it. In differential
configuration, the bits for odd channels are ignored. At
power-up and after a RESET command, the register
contents default to 111111111111b (all channels
enabled).
The input configuration register (Table 5) stores the
configuration code for each channel as a 3-bit per
channel-pair code (see Table 6), selecting from five
input signal configurations: single-ended unipolar volt-
age, single-ended temperature, differential unipolar
voltage, differential bipolar voltage, and differential
temperature. Table 5 shows the input configuration reg-
ister format, and Table 6 shows the 3-bit encoding for
channel configuration. At power-up and after a RESET
command, the register contents defaults to
000000000000b (all inputs single ended).
AIN4
Single-ended input (power-up state)
Single-ended, external temperature sensor input
Single-ended input
Single-ended, external temperature sensor input
Differential unipolar encoded, negative input
Differential bipolar encoded, negative input
Differential external temperature sensor, negative input
Reserved
B5
B5
AIN1, AIN3, AIN5, AIN7 CONFIGURATION
AIN5
B4
B4
Input Configuration Register
AIN6
B3
B3
Channel-Enable Register
AIN6 and AIN7 configuration
AIN7
DD
B2
B2
Monitor
Res
B1
B1
(LSB)
(LSB)
Res
B0
B0