Product Details
Key Features
Applications/Uses
Resolution (bits) (ADC) | 12 |
# Input Channels | 4 |
Conv. Rate (ksps) (max) | 94.4 |
Data Bus | I2C |
ADC Architecture | SAR |
Diff/S.E. Input | Both |
Internal VREF (V) (nominal) | 4.096 |
External VREF (V) (min) | 1 |
External VREF (V) (max) | 5.5 |
Unipolar VIN (V) (max) | 4.096 |
Bipolar VIN (±V) (max) | 2.048 |
INL (±LSB) | 1 |
Package/Pins | UMAX/8 |
Budgetary Price (See Notes) | 5.36 |
Simplified Block Diagram
Technical Docs
Data Sheet | 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs | Aug 19, 2010 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Parameters
Resolution (bits) (ADC) | 12 |
# Input Channels | 4 |
Conv. Rate (ksps) (max) | 94.4 |
Data Bus | I2C |
ADC Architecture | SAR |
Diff/S.E. Input | Both |
Internal VREF (V) (nominal) | 4.096 |
External VREF (V) (min) | 1 |
External VREF (V) (max) | 5.5 |
Unipolar VIN (V) (max) | 4.096 |
Bipolar VIN (±V) (max) | 2.048 |
INL (±LSB) | 1 |
Package/Pins | UMAX/8 |
Budgetary Price (See Notes) | 5.36 |
Key Features
- High-Speed I²C-Compatible Serial Interface
- 400kHz Fast Mode
- 1.7MHz High-Speed Mode
- Single-Supply
- 2.7V to 3.6V (MAX1237/MAX1239)
- 4.5V to 5.5V (MAX1236/MAX1238)
- Internal Reference
- 2.048V (MAX1237/MAX1239)
- 4.096V (MAX1236/MAX1238)
- External Reference: 1V to VDD
- Internal Clock
- 4-Channel Single-Ended or 2-Channel Fully Differential (MAX1236/MAX1237)
- 12-Channel Single-Ended or 6-Channel Fully Differential (MAX1238/MAX1239)
- 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 (MAX1236/MAX1237)
- 16-Pin QSOP (MAX1238/MAX1239)
Applications/Uses
- Battery-Powered Test Equipment
- Handheld Portable Applications
- Medical Instruments
- Received-Signal-Strength Indicators
- Solar-Powered Remote Systems
- System Supervision
Description
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 MAX1237/MAX1239 feature a 2.048V internal reference and the MAX1236/MAX1238 feature a 4.096V internal reference. The MAX1236/MAX1237 are available in an 8-pin µMAX® package. The MAX1238/MAX1239 are available in a 16-pin QSOP package. The MAX1236–MAX1239 are guaranteed over the extended temperature range (-40°C to +85°C). For pin-compatible 10-bit parts, refer to the MAX1136–MAX1139 data sheet. For pin-compatible 8-bit parts, refer to the MAX1036–MAX1039 data sheet.
Technical Docs
Data Sheet | 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs | Aug 19, 2010 |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.