MAX1028 Maxim Integrated Products, MAX1028 Datasheet - Page 9

• Manufacturer Part Number: MAX1028
• Description: (MAX1030 / MAX1028 / MAX1026) 10-Bit 300ksps ADCs with FIFO / Temp Sensor / Internal Reference
• Manufacturer: Maxim Integrated Products

The MAX1026/MAX1028/MAX1030 are low-power, seri-
al-output, multichannel ADCs with temperature-sensing
capability for temperature-control, process-control, and
monitoring applications. These 10-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
Figure 2. Functional Diagram
Figure 1. Detailed Serial-Interface Timing Diagram
DOUT
SCLK
DIN
CS
t
t
CSS
_______________________________________________________________________________________
DS
Detailed Description
t
DOE
t
DH
CNVST
AIN15
SCLK
REF+
AIN1
AIN2
REF-
DIN
CS
Temp Sensor, Internal Reference
OSCILLATOR
t
10-Bit 300ksps ADCs with FIFO,
CH
MAX1026
MAX1028
MAX1030
SENSE
TEMP
T/H
CONTROL
t
DOT
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
MAX1026/MAX1028/MAX1030 internal architecture. The
MAX1026 has eight single-ended analog input chan-
nels or four differential channels. The MAX1028 has 12
single-ended analog input channels or six differential
channels. The MAX1030 has 16 single-ended analog
input channels or eight differential channels.
12-BIT
ADC
SAR
t
CP
INTERFACE
SERIAL
REFERENCE
INTERNAL
ACCUMULATOR
FIFO AND
EOC
DOUT
t
CSH
t
t
t
CSH
CSS
DOD
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