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MAX1227 Datasheet

  • MAX1227

  • " 12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Refer...

  • 508.38KB

  • Maxim   Maxim

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19-2852; Rev 1; 7/03
KIT
ATION
EVALU
BLE
AVAILA
12-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
General Description
Features
o
Internal Temperature Sensor (鹵1擄C Accuracy)
o
16-Entry First-In/First-Out (FIFO)
o
Analog Multiplexer with True Differential
Track/Hold
16-, 12-, 8-Channel Single Ended
8-, 6-, 4-Channel True Differential
(Unipolar or Bipolar)
o
Accuracy: 鹵1 LSB INL, 鹵1 LSB DNL, No Missing
Codes Over Temperature
o
Scan Mode, Internal Averaging, and Internal Clock
o
Low-Power Single +5V Operation
1.9mA at 300ksps
o
Internal 4.096V Reference or External Differential
Reference
o
10MHz 3-Wire SPI/QSPI/MICROWIRE-Compatible
Interface
o
Space-Saving 28-Pin 5mm x 5mm QFN Package
MAX1226/MAX1228/MAX1230
The MAX1226/MAX1228/MAX1230 are serial 12-bit ana-
log-to-digital converters (ADCs) with an internal reference
and an internal temperature sensor. These devices fea-
ture on-chip FIFO, scan mode, internal clock mode, inter-
nal averaging, and AutoShutdown鈩? The maximum
sampling rate is 300ksps using an external clock. The
MAX1230 has 16 input channels, the MAX1228 has 12
input channels, and the MAX1226 has 8 input channels.
All input channels are configurable for single-ended or
differential inputs in unipolar or bipolar mode. All three
devices operate from a +5V supply and contain a 10MHz
SPI鈩?QSPI鈩?MICROWIRE鈩?compatible serial port.
The MAX1230 is available in 28-pin 5mm x 5mm QFN
with exposed pad and 24-pin QSOP packages. The
MAX1226/MAX1228 are only available in QSOP pack-
ages. All three devices are specified over the extended
-40擄C to +85擄C temperature range.
________________________Applications
System Supervision
Data-Acquisition Systems
Industrial Control Systems
Patient Monitoring
Data Logging
Instrumentation
Ordering Information
PART
MAX1226ACEE-T*
MAX1226AEEE-T*
TEMP RANGE
0擄C to +70擄C
-40擄C to +85擄C
PIN-PACKAGE
16 QSOP
16 QSOP
*Future
product鈥攃ontact factory for availability.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Ordering Information continued at end of data sheet.
Pin Configurations
TOP VIEW
AIN0 1
AIN0 1
AIN1 2
AIN2 3
AIN3 4
AIN4 5
AIN5 6
REF-/AIN6 7
CNVST/AIN7 8
16 EOC
15 DOUT
14 DIN
AIN1 2
AIN2 3
AIN3 4
AIN4 5
AIN5 6
AIN6 7
AIN7 8
AIN8 9
AIN9 10
20 EOC
19 DOUT
18 DIN
17 CS
MAX1226
13 CS
12 SCLK
11 V
DD
10 GND
9
REF+
MAX1228
16 SCLK
15 V
DD
14 GND
13 REF+
12 CNVST/AIN11
11 REF-/AIN10
QSOP
Pin Configurations continued at end of data sheet.
QSOP
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.

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