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General Description
The MAX1036–MAX1039 low-power, 8-bit, multichannel,
analog-to-digital converters (ADCs) feature internal
track/hold (T/H), voltage reference, clock, and an
I2C-compatible 2-wire serial interface. These devices
operate from a single supply and require only 350A at
the maximum sampling rate of 188ksps. Auto-
Shutdown powers down the devices between conver-
sions reducing supply current to less than 1A at low
throughput rates. The MAX1036/MAX1037 have four ana-
log input channels each, while the MAX1038/MAX1039
have twelve analog input channels. The analog inputs are
software configurable for unipolar or bipolar and single-
ended or pseudo-differential operation.
The full-scale analog input range is determined by the
internal reference or by an externally applied reference
voltage ranging from 1V to VDD. The MAX1037/
MAX1039 feature a 2.048V internal reference and the
MAX1036/MAX1038 feature a 4.096V internal reference.
The MAX1036/MAX1037 are available in 8-pin SOT23
packages. The MAX1038/MAX1039 are available in 16-
pin QSOP packages. The MAX1036–MAX1039 are guar-
anteed over the extended industrial temperature range
(-40°C to +85°C). Refer to MAX1136–MAX1139 for 10-bit
devices and to the MAX1236–MAX1239 for 12-bit
devices.
Applications
Handheld Portable Applications
Medical Instruments
Battery-Powered Test Equipment
Solar-Powered Remote Systems
Received-Signal-Strength Indicators
System Supervision
Features
o High-Speed I2C-Compatible Serial Interface
400kHz Fast Mode
1.7MHz High-Speed Mode
o Single Supply
2.7V to 3.6V (MAX1037/MAX1039)
4.5V to 5.5V (MAX1036/MAX1038)
o Internal Reference
2.048V (MAX1037/MAX1039)
4.096V (MAX1036/MAX1038)
o External Reference: 1V to VDD
o Internal Clock
o 4-Channel Single-Ended or 2-Channel Pseudo-
Differential (MAX1036/MAX1037)
o 12-Channel Single-Ended or 6-Channel Pseudo-
Differential (MAX1038/MAX1039)
o Internal FIFO with Channel-Scan Mode
o Low Power
350A at 188ksps
110A at 75ksps
8A at 10ksps
1A in Power-Down Mode
o Software Configurable Unipolar/Bipolar
o Small Packages
8-Pin SOT23 (MAX1036/MAX1037)
16-Pin QSOP (MAX1038/MAX1039)
MAX1036–MAX1039
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel 2-Wire Serial 8-Bit ADCs
________________________________________________________________
Maxim Integrated Products
1
Ordering Information/Selector Guide
19-2442; Rev 4; 5/09
PART
PIN-PACKAGE
TUE
(LSB)
INPUT
CHANNELS
I2C
SLAVE ADDRESS
INTERNAL
REFERENCE (V)
TOP MARK
MAX1036EKA+T
8 SOT23
±2
4
1100100
4.096
AAJE
MAX1037EKA+T
8 SOT23
±2
4
1100100
2.048
AAJG
MAX1038AEEE+
16 QSOP
±1
12
1100101
4.096
—
MAX1039AEEE+
16 QSOP
±1
12
1100101
2.048
—
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
Pin Configurations and Typical Operating Circuit appear
at end of data sheet.
EVALUATION
KIT
AVAILABLE
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.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.