Product Details
The 4-wire serial interface connects directly to SPI™/QSPI™/MICROWIRE™ devices without external logic. A serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX1280/MAX1281 use an external serial-interface clock to perform successive-approximation analog-to-digital conversions. Both parts feature an internal +2.5V reference and a reference-buffer amplifier with a ±1.5% voltage-adjustment range. An external reference with a 1V to VDD1 range may also be used.
The MAX1280/MAX1281 provide a hard-wired active-low SHDN pin and four software-selectable power modes (normal operation, reduced power, fast power-down, and full power-down). These devices can be programmed to automatically shut down at the end of a conversion or to operate with reduced power. When using the power-down modes, accessing the serial interface automatically powers up the devices, and the quick turn-on time allows them to be powered down between all conversions. This technique can cut supply current to under 100µA at reduced sampling rates.
The MAX1280/MAX1281 are available in 20-pin TSSOP packages. These devices are higher-speed versions of the MAX146/MAX147 (for more information, see the respective data sheet).
Key Features
- 8-Channel Single-Ended or 4-Channel Pseudo-Differential Inputs
- Internal Multiplexer and Track/Hold
- Single-Supply Operation
- +4.5V to +5.5V (MAX1280)
- +2.7V to +3.6V (MAX1281)
- Internal +2.5V Reference
- 400ksps Sampling Rate (MAX1280)
- Low Power 2.5mA (400ksps)
- 1.3mA (Reduced-Power Mode)
- 0.9mA (Fast Power-Down Mode)
- 2µA (Full Power-Down)
- SPI/QSPI/MICROWIRE/TMS320-Compatible
- 4-Wire Serial Interface
- Software-Configurable Unipolar or Bipolar Inputs
- 20-Pin TSSOP Package
Applications/Uses
- Battery-Powered Applications
- Data Acquisition
- Medical Instruments
- Pen Digitizers
- Portable Data Logging
- Process Control
Resolution (bits) (ADC) | 12 |
# Input Channels | 8 |
Conv. Rate (ksps) (max) | 300 |
Data Bus | SPI |
ADC Architecture | SAR |
Diff/S.E. Input | Both |
Internal VREF (V) (nominal) | 2.5 |
External VREF (V) (min) | 1 |
External VREF (V) (max) | 3.6 |
Unipolar VIN (V) (max) | 2.5 |
Bipolar VIN (±V) (max) | 1.25 |
INL (±LSB) | 1 |
Package/Pins | TSSOP/20 |
Budgetary Price (See Notes) | $9.20 @1k |
Technical Docs
Data Sheet | 400ksps/300ksps, Single-Supply, Low-Power, 8-Channel, Serial 12-Bit ADCs with Internal Reference | Nov 30, 2010 |
Click any title below to view the detail page where available.
Description
The MAX1280 evaluation system (EV system) is a complete, 8-channel data-acquisition system consisting of a MAX1280 evaluation kit (EV kit), Maxim 68HC16MODULE-DIP microcontroller (µC) module, and USBTO232. The MAX1280 is a high-speed, multi-channel, 12-bit data-acquisition system. Windows® 98/2000/XP-compatible software provides a handy user interface to exercise the MAX1280's features.
Order the complete EV system (MAX1280EVC16) for a comprehensive evaluation of the MAX1280 using a PC. Order the EV kit (MAX1280EVKIT) if the 68HC16MODULE-DIP module has already been purchased with a previous Maxim EV system, or for custom use in other µC-based systems.
Features
- Proven PCB Layout
- Convenient On-Board Test Points
- Data-Logging Software
- Fully Assembled and Tested
- EV Kit Software Supports Windows 98/2000/XP with RS-232/COM Port
- EV Kit Software Supports Windows 2000/XP with USB Port
Description
The MAX1280 evaluation system (EV system) is a complete, 8-channel data-acquisition system consisting of a MAX1280 evaluation kit (EV kit), Maxim 68HC16MODULE-DIP microcontroller (µC) module, and USBTO232. The MAX1280 is a high-speed, multi-channel, 12-bit data-acquisition system. Windows® 98/2000/XP-compatible software provides a handy user interface to exercise the MAX1280's features.
Order the complete EV system (MAX1280EVC16) for a comprehensive evaluation of the MAX1280 using a PC. Order the EV kit (MAX1280EVKIT) if the 68HC16MODULE-DIP module has already been purchased with a previous Maxim EV system, or for custom use in other µC-based systems.
Features
- Proven PCB Layout
- Convenient On-Board Test Points
- Data-Logging Software
- Fully Assembled and Tested
- EV Kit Software Supports Windows 98/2000/XP with RS-232/COM Port
- EV Kit Software Supports Windows 2000/XP with USB Port
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
Parameters
Resolution (bits) (ADC) | 12 |
# Input Channels | 8 |
Conv. Rate (ksps) (max) | 300 |
Data Bus | SPI |
ADC Architecture | SAR |
Diff/S.E. Input | Both |
Internal VREF (V) (nominal) | 2.5 |
External VREF (V) (min) | 1 |
External VREF (V) (max) | 3.6 |
Unipolar VIN (V) (max) | 2.5 |
Bipolar VIN (±V) (max) | 1.25 |
INL (±LSB) | 1 |
Package/Pins | TSSOP/20 |
Budgetary Price (See Notes) | $9.20 @1k |
Key Features
- 8-Channel Single-Ended or 4-Channel Pseudo-Differential Inputs
- Internal Multiplexer and Track/Hold
- Single-Supply Operation
- +4.5V to +5.5V (MAX1280)
- +2.7V to +3.6V (MAX1281)
- Internal +2.5V Reference
- 400ksps Sampling Rate (MAX1280)
- Low Power 2.5mA (400ksps)
- 1.3mA (Reduced-Power Mode)
- 0.9mA (Fast Power-Down Mode)
- 2µA (Full Power-Down)
- SPI/QSPI/MICROWIRE/TMS320-Compatible
- 4-Wire Serial Interface
- Software-Configurable Unipolar or Bipolar Inputs
- 20-Pin TSSOP Package
Applications/Uses
- Battery-Powered Applications
- Data Acquisition
- Medical Instruments
- Pen Digitizers
- Portable Data Logging
- Process Control
Description
The 4-wire serial interface connects directly to SPI™/QSPI™/MICROWIRE™ devices without external logic. A serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX1280/MAX1281 use an external serial-interface clock to perform successive-approximation analog-to-digital conversions. Both parts feature an internal +2.5V reference and a reference-buffer amplifier with a ±1.5% voltage-adjustment range. An external reference with a 1V to VDD1 range may also be used.
The MAX1280/MAX1281 provide a hard-wired active-low SHDN pin and four software-selectable power modes (normal operation, reduced power, fast power-down, and full power-down). These devices can be programmed to automatically shut down at the end of a conversion or to operate with reduced power. When using the power-down modes, accessing the serial interface automatically powers up the devices, and the quick turn-on time allows them to be powered down between all conversions. This technique can cut supply current to under 100µA at reduced sampling rates.
The MAX1280/MAX1281 are available in 20-pin TSSOP packages. These devices are higher-speed versions of the MAX146/MAX147 (for more information, see the respective data sheet).
Technical Docs
Data Sheet | 400ksps/300ksps, Single-Supply, Low-Power, 8-Channel, Serial 12-Bit ADCs with Internal Reference | Nov 30, 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