MAX1231BEEG+ Maxim Integrated Products, MAX1231BEEG+ Datasheet - Page 9

• Manufacturer Part Number: MAX1231BEEG+
• Description: IC ADC 12BIT 300KSPS 24-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1231BEEG+

• Number Of Bits: 12
• Sampling Rate (per Second): 300k
• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 762mW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-QSOP
• Number Of Adc Inputs: 16
• Architecture: SAR
• Conversion Rate: 300 KSPs
• Resolution: 12 bit
• Input Type: Differential
• Interface Type: 3-Wire (SPI, QSPI, MICROWIRE)
• Voltage Reference: Internal 2.5 V or External
• Supply Voltage (max): 3.3 V
• Maximum Power Dissipation: 762 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 2. Functional Diagram
Figure 1. Detailed Serial-Interface Timing Diagram
The MAX1227/MAX1229/MAX1231 are low-power, seri-
al-output, multichannel ADCs with temperature-sensing
capability for temperature-control, process-control, and
monitoring applications. These 12-bit ADCs have inter-
nal track and hold (T/H) circuitry that supports single-
ended and fully differential inputs. Data is converted
from an internal temperature sensor or analog voltage
sources in a variety of channel and data-acquisition
DOUT
SCLK
DIN
CS
t
CSS0
t
DS
_______________________________________________________________________________________
Detailed Description
t
DOE
CNVST
AIN15
t
SCLK
DH
REF+
AIN1
AIN2
REF-
DIN
CS
OSCILLATOR
Temp Sensor, Internal Reference
MAX1227
MAX1229
MAX1231
t
12-Bit 300ksps ADCs with FIFO,
CH
SENSE
TEMP
T/H
CONTROL
t
DOT
12-BIT
ADC
SAR
configurations. Microprocessor (µP) control is made
easy through a 3-wire SPI-/QSPI/ MICROWIRE-compati-
ble serial interface.
Figure 2 shows a simplified functional diagram of the
MAX1227/MAX1229/MAX1231 internal architecture.
The MAX1227 has eight single-ended analog input
channels or four differential channels. The MAX1229
has 12 single-ended analog input channels or six differ-
ential channels. The MAX1231 has 16 single-ended
analog input channels or eight differential channels.
INTERFACE
t
CP
SERIAL
REFERENCE
INTERNAL
ACCUMULATOR
FIFO AND
EOC
DOUT
t
CSH1
t
CSH0
t
t
CSS1
DOD
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