19-2853; Rev 3; 11/09
10-Bit 300ksps ADCs with FIFO,
Temp Sensor, Internal Reference
628/MAX130
General Description
Features
The MAX1026/MAX1028/MAX1030 are serial 10-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™. The maximum
sampling rate is 300ksps using an external clock. The
MAX1030 has 16 input channels, the MAX1028 has 12
input channels, and the MAX1026 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™/QSPI™/MICROWIRE™-compatible serial port.
♦ Internal Temperature Sensor ( 1°C Accuracy)
♦ 16-Entry First-In/First-Out (FIFO)
♦ Analog Multiplexer with True Differential
Track/Hold
16-, 12-, 8-Channel Single Ended
8-, 6-, 4-Channel True Differential
(Unipolar or Bipolar)
♦ Accuracy: 1 LSB INL, 1 LSB DNL, No Missing
Codes Over Temperature
♦ Scan Mode, Internal Averaging, and Internal Clock
The MAX1030 is available in 28-pin 5mm x 5mm TQFN
with exposed pad and 24-pin QSOP packages. The
MAX1026/MAX1028 are only available in QSOP pack-
ages. All three devices are specified over the extended
-40°C to +85°C temperature range.
♦ Low-Power Single +5V Operation
1.9mA at 300ksps
♦ Internal 4.096V Reference or External Differential
Reference
♦ 10MHz 3-Wire SPI/QSPI/MICROWIRE-Compatible
Interface
♦ Space-Saving 28-Pin 5mm x 5mm TQFN Package
________________________Applications
System Supervision
Data-Acquisition Systems
Industrial Control Systems
Patient Monitoring
Data Logging
Ordering Information
PART
TEMP RANGE
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
16 QSOP
MAX1026BCEE-T
MAX1026BEEE-T
MAX1028BCEP-T
MAX1028BEEP-T
16 QSOP
Instrumentation
20 QSOP
20 QSOP
Ordering Information continued at end of data sheet.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Pin Configurations
TOP VIEW
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
1
2
3
4
5
6
7
8
9
20 EOC
19 DOUT
18 DIN
17 CS
AIN0
1
2
3
4
5
6
7
8
16 EOC
15 DOUT
14 DIN
13 CS
AIN1
AIN2
MAX1028
16 SCLK
AIN3
MAX1026
15
14
V
DD
AIN4
12 SCLK
GND
AIN5
11
10 GND
REF+
V
DD
13 REF+
REF-/AIN6
CNVST/AIN7
12 CNVST/AIN11
11 REF-/AIN10
9
AIN9 10
QSOP
QSOP
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
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.