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General Description
The MAX11626–MAX11629/MAX11632/MAX11633 are
serial 12-bit analog-to-digital converters (ADCs) with an
internal reference. These devices feature on-chip FIFO,
scan mode, internal clock mode, internal averaging,
and AutoShutdown™. The maximum sampling rate is
300ksps using an external clock. The MAX11632/
MAX11633 have 16 input channels; the MAX11628/
MAX11629 have 8 input channels; and the MAX11626/
MAX11627 have 4 input channels. These six devices
operate from either a +3V supply or a +5V supply, and
contain a 10MHz SPI-/QSPI™-/MICROWIRE
®
-compati-
ble serial port.
The MAX11626–MAX11629 are available in 16-pin
QSOP packages. The MAX11632/MAX11633 are avail-
able in 24-pin QSOP packages. All six devices are
specified over the extended -40°C to +85°C tempera-
ture range.
________________________Applications
System Supervision
Data-Acquisition Systems
Industrial Control Systems
Patient Monitoring
Data Logging
Instrumentation
Features
o Analog Multiplexer with Track/Hold
16 Channels (MAX11632/MAX11633)
8 Channels (MAX11628/MAX11629)
4 Channels (MAX11626/MAX11627)
o Single Supply
2.7V to 3.6V (MAX11627/MAX11629/MAX11633)
4.75V to 5.25V
(MAX11626/MAX11628/MAX11632)
o Internal Reference
2.5V (MAX11627/MAX11629/MAX11633)
4.096V (MAX11626/MAX11628/MAX11632)
o External Reference: 1V to V
DD
o 16-Entry First-In/First-Out (FIFO)
o Scan Mode, Internal Averaging, and Internal Clock
o Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing
Codes Over Temperature
o 10MHz 3-Wire SPI-/QSPI-/MICROWIRE-Compatible
Interface
o Small Packages
16-Pin QSOP (MAX11626–MAX11629)
24-Pin QSOP (MAX11632/MAX11633)
MAX11626–MAX11629/MAX11632/MAX11633
12-Bit, 300ksps ADCs
with FIFO and Internal Reference
________________________________________________________________
Maxim Integrated Products
1
16
15
14
13
12
11
10
9
2
1
3
4
5
6
7
8
AIN0
TOP VIEW
EOC
DOUT
DIN
CS
SCLK
V
DD
GND
REF
MAX11626–
MAX11629
QSOP
AIN1
AIN2
AIN5 (N.C.)
AIN3
AIN4 (N.C.)
AIN6 (N.C.)
AIN7/(CNVST)
() MAX11626/MAX11627 ONLY
+
Pin Configurations
19-5323; Rev 4; 10/11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
EVALUATION KIT
AVAILABLE
Ordering Information
+
Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
PART
NUMBER
OF
INPUTS
SUPPLY
VOLTAGE
RANGE (V)
PIN
PACKAGE
MAX11626EEE+ 4 4.75 to 5.25 16 QSOP
MAX11627EEE+ 4 2.7 to 3.6 16 QSOP
MAX11628EEE+ 8 4.75 to 5.25 16 QSOP
MAX11628EEE/V+ 8 4.75 to 5.25 16 QSOP
MAX11629EEE+ 8 2.7 to 3.6 16 QSOP
MAX11632EEG+ 16 4.75 to 5.25 24 QSOP
MAX11633EEG+ 16 2.7 to 3.6 24 QSOP
Pin Configurations continued at end of data sheet.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a registered trademark of National Semiconductor Corp.
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
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