MAX1137M
2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial 10-Bit ADCs
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Features
- High-Speed I²C-Compatible Serial Interface
- 400kHz Fast Mode
- 1.7MHz High-Speed Mode
- Single-Supply
- 2.7V to 3.6V (MAX1137/MAX1139)
- 4.5V to 5.5V (MAX1136/MAX1138)
- Internal Reference
- 2.048V (MAX1137/MAX1139)
- 4.096V (MAX1136/MAX1138)
- External Reference: 1V to VDD
- Internal Clock
- 4-Channel Single-Ended or 2-Channel Fully Differential (MAX1136/MAX1137)
- 12-Channel Single-Ended or 6-Channel Fully Differential (MAX1138/MAX1139)
- Internal FIFO with Channel-Scan Mode
- Low Power
- 670µA at 94.4ksps
- 230µA at 40ksps
- 60µA at 10ksps
- 6µA at 1ksps
- 0.5µA in Power-Down Mode
- Software-Configurable Unipolar/Bipolar
- Small Packages
- 8-Pin µMAX (MAX1136/MAX1137)
- 16-Pin QSOP (MAX1138/MAX1139)
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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 VDD. 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
- Battery-Powered Test Equipment
- Handheld Portable Applications
- Medical Instruments
- Receive Signal Strength Indicators
- Solar-Powered Remote Systems
- System Supervision
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
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Visit the ADI Support Page
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MAX1137M
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Software & Part Ecosystem
| Parts | Product Life Cycle | Description | ||
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Multirange, +5V, 12-Bit DAS with 2-Wire Serial Interface |
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