Product Details
Key Features
Applications/Uses
Resolution (bits) (ADC) | 12 |
# Input Channels | 8 |
Conv. Rate (ksps) (max) | 110 |
Data Bus | SPI |
ADC Architecture | SAR |
Diff/S.E. Input | S.E. Only |
Internal VREF (V) (nominal) | 4.096 |
External VREF (V) (min) | 2.4 |
External VREF (V) (max) | 4.18 |
Unipolar VIN (V) (max) | 4.096 |
Bipolar VIN (±V) (max) | 2.048 |
INL (±LSB) | 1 |
Package/Pins | PDIP/24 SSOP/28 |
Budgetary Price (See Notes) | 12.88 |
Simplified Block Diagram
Technical Docs
Data Sheet | Multirange, +5V, 8-Channel, Serial 12-Bit ADCs | Mar 02, 2005 |
Support & Training
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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 | 8 |
Conv. Rate (ksps) (max) | 110 |
Data Bus | SPI |
ADC Architecture | SAR |
Diff/S.E. Input | S.E. Only |
Internal VREF (V) (nominal) | 4.096 |
External VREF (V) (min) | 2.4 |
External VREF (V) (max) | 4.18 |
Unipolar VIN (V) (max) | 4.096 |
Bipolar VIN (±V) (max) | 2.048 |
INL (±LSB) | 1 |
Package/Pins | PDIP/24 SSOP/28 |
Budgetary Price (See Notes) | 12.88 |
Key Features
- 12-Bit Resolution, 1/2LSB Linearity
- +5V Single-Supply Operation
- SPI/QSPI and MICROWIRE-Compatible 3-Wire Interface
- Four Software-Selectable Input Ranges
- MAX1270: 0 to +10V, 0 to +5V, ±10V, ±5V
- MAX1271: 0 to VREF, 0 to VREF/2, ±VREF, ±VREF/2
- Eight Analog Input Channels
- 110ksps Sampling Rate
- ±16.5V Overvoltage-Tolerant Input Multiplexer
- Internal 4.096V or External Reference
- Two Power-Down Modes
- Internal or External Clock
- 24-Pin Narrow DIP or 28-Pin SSOP Packages
Applications/Uses
- Automatic Testing
- Battery-Powered Instruments
- Data Acquisition Systems
- Industrial Control Systems
- Medical Instruments
- Robotics
Description
The MAX1270/MAX1271 serial interface directly connects to SPI/QSPI and MICROWIRE devices without external logic.
A hardware shutdown input (SHDN-bar) and two software-programmable power-down modes, standby (STBYPD) or full power-down (FULLPD), are provided for low-current shutdown between conversions. In standby mode, the reference buffer remains active, eliminating start-up delays.
The MAX1270/MAX1271 are available in 24-pin narrow DIP or space-saving 28-pin SSOP packages.
Simplified Block Diagram
MAX1270, MAX1270A, MAX1270B, MAX1271, MAX1271A, MAX1271B: Typical Operating Circuit
Technical Docs
Data Sheet | Multirange, +5V, 8-Channel, Serial 12-Bit ADCs | Mar 02, 2005 |
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.