MAX1228BCEP+ Maxim Integrated Products, MAX1228BCEP+ Datasheet - Page 9

• Manufacturer Part Number: MAX1228BCEP+
• Description: IC ADC 12-BIT 300KSPS 20-QSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1228BCEP+

• Number Of Bits: 12
• Sampling Rate (per Second): 300k
• Data Interface: MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 727mW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 1. Detailed Serial-Interface Timing Diagram
Figure 2. Functional Diagram
The MAX1226/MAX1228/MAX1230 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
_______________________________________________________________________________________
Detailed Description
t
CSS0
t
DS
t
DOE
CNVST
AIN15
SCLK
t
REF+
AIN1
AIN2
REF-
DH
DIN
CS
Temp Sensor, Internal Reference
12-Bit 300ksps ADCs with FIFO,
OSCILLATOR
t
MAX1226
MAX1228
MAX1230
CH
SENSE
TEMP
MUX
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
MAX1226/MAX1228/MAX1230 internal architecture.
The MAX1226 has eight single-ended analog input
channels or four differential channels. The MAX1228
has 12 single-ended analog input channels or six differ-
ential channels. The MAX1230 has 16 single-ended
analog input channels or eight differential channels.
SERIAL INTERFACE
t
CP
REFERENCE
INTERNAL
ACCUMULATOR
FIFO AND
EOC
DOUT
t
CSH1
t
CSH0
t
t
CSS1
DOD
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