MAX1136_09 Datasheet, PDF (1/22 Pages) Maxim Integrated Products – 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial 10-Bit ADCs

19-2334; Rev 5; 5/09
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial 10-Bit ADCs
General Description
The MAX1136–MAX1139 low-power, 10-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 of 2.7V to 3.6V (MAX1137/
MAX1139) or 4.5V to 5.5V (MAX1136/MAX1138) and
require only 670µA at the maximum sampling rate of
94.4ksps. Supply current falls below 230µA for sampling
rates under 46ksps. AutoShutdown™ powers down the
devices between conversions, reducing supply current to
less than 1µA at low throughput rates. The
MAX1136/MAX1137 have four analog input channels
each, while the MAX1138/MAX1139 have 12 analog input
channels each. The fully differential analog inputs are
software configurable for unipolar or bipolar, and single
ended or 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 V_DD. The MAX1137/
MAX1139 feature a 2.048V internal reference and the
MAX1136/MAX1138 feature a 4.096V internal reference.
The MAX1136/MAX1137 are available in an 8-pin µMAX^®
package. The MAX1138/MAX1139 are available in a
16-pin QSOP package. The MAX1136–MAX1139 are
guaranteed over the extended temperature range
(-40°C to +85°C). For pin-compatible 12-bit parts, refer to
the MAX1236–MAX1239 data sheet. For pin-compatible
8-bit parts, refer to the MAX1036–MAX1039 data sheet.
Applications
Hand-Held Portable
Applications
Medical Instruments
Battery-Powered Test
Equipment
Solar-Powered Remote
Systems
Received-Signal-Strength
Indicators
System Supervision
Selector Guide
PART
INTERNAL SUPPLY
INPUT
CHANNELS
REFERENCE
(V)
VOLTAGE
(V)
INL
(LSB)
MAX1136
4
MAX1137
4
MAX1138
12
MAX1139
12
4.096
2.048
4.096
2.048
4.5 to 5.5 ±1
2.7 to 3.6 ±1
4.5 to 5.5 ±1
2.7 to 3.6 ±1
Features
o High-Speed I²C-Compatible Serial Interface
400kHz Fast Mode
1.7MHz High-Speed Mode
o Single-Supply
2.7V to 3.6V (MAX1137/MAX1139)
4.5V to 5.5V (MAX1136/MAX1138)
o Internal Reference
2.048V (MAX1137/MAX1139)
4.096V (MAX1136/MAX1138)
o External Reference: 1V to V_DD
o Internal Clock
o 4-Channel Single-Ended or 2-Channel Fully
Differential (MAX1136/MAX1137)
o 12-Channel Single-Ended or 6-Channel Fully
Differential (MAX1138/MAX1139)
o Internal FIFO with Channel-Scan Mode
o Low Power
670µA at 94.4ksps
230µA at 40ksps
60µA at 10ksps
6µA at 1ksps
0.5µA in Power-Down Mode
o Software-Configurable Unipolar/Bipolar
o Small Packages
8-Pin µMAX (MAX1136/MAX1137)
16-Pin QSOP (MAX1138/MAX1139)
Ordering Information
PART
MAX1136EUA+
MAX1137EUA+
MAX1138EEE+
MAX1139EEE+
TEMP RANGE ^PIN-
I²C SLAVE
PACKAGE ADDRESS
-40°C to +85°C 8 µMAX
0110100
-40°C to +85°C 8 µMAX
0110100
-40°C to +85°C 16 QSOP 0110101
-40°C to +85°C 16 QSOP 0110101
+Denotes a lead(Pb)-free/RoHS-compliant package.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Pin Configurations and Typical Operating Circuit appear 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.