Product Details
Key Features
Applications/Uses
Resolution (bits) (ADC) | 10 |
# 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) | 6.82 |
Simplified Block Diagram
Technical Docs
Data Sheet | 300ksps/400ksps, Single-Supply, Low-Power, 8-Channel, Serial 10-Bit ADCs with Internal Reference | Jul 31, 2000 |
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) | 10 |
# 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) | 6.82 |
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 (MAX1080)
- +2.7V to +3.6V (MAX1081)
- Internal +2.5V Reference
- 400ksps Sampling Rate (MAX1080)
- Low Power: 2.5mA (400ksps)
- 1.3mA (REDP)
- 0.9mA (FASTPD)
- 2µA (FULLPD)
- 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™ and MICROWIRE™ devices without external logic. A serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX1080/MAX1081 use an external serial-interface clock to perform successive-approximation analog-to-digital conversions. The devices 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 MAX1080/MAX1081 provide a hard-wired activel-low SHDN pin and four software-selectable power modes (normal operation, reduced power (REDP), fast power-down (FASTPD), and full power-down (FULLPD)). 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 shut down between all conversions. This technique can cut supply current below 100mA at lower sampling rates.
The MAX1080/MAX1081 are available in a 20-pin TSSOP package. These devices are higher-speed versions of the MAX148/MAX149. For more information, refer to the respective data sheet.
Simplified Block Diagram
MAX1080, MAX1080A, MAX1080B, MAX1081, MAX1081A, MAX1081B: Typical Operating Circuit
Technical Docs
Data Sheet | 300ksps/400ksps, Single-Supply, Low-Power, 8-Channel, Serial 10-Bit ADCs with Internal Reference | Jul 31, 2000 |
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.