MAX1081B
300ksps/400ksps, Single-Supply, Low-Power, 8-Channel, Serial 10-Bit ADCs with Internal Reference
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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
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The MAX1080/MAX1081 10-bit analog-to-digital converters (ADCs) combine an 8-channel analog-input multiplexer, high-bandwidth track/hold (T/H), and serial interface with high conversion speed and low power consumption. The MAX1080 operates from a single +4.5V to +5.5V supply; the MAX1081 operates from a single +2.7V to +3.6V supply. Both devices' analog inputs are software configurable for unipolar/bipolar and single-ended/pseudo-differential operation.
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.
Applications
- Battery-Powered Applications
- Data Acquisition
- Medical Instruments
- Pen Digitizers
- Portable Data Logging
- Process Control
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MAX1081B
Documentation
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Data Sheet
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MAX1080-MAX1081B: 300ksps/400ksps, Single-Supply, Low-Power, 8-Channel, Serial 10-Bit ADCs with Internal Reference Data Sheet (Rev.0)
Documentation
Software & Part Ecosystem
| Parts | Product Life Cycle | Description | ||
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Multiplexed A/D Converters7 |
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PRODUCTION |
300ksps/400ksps, Single-Supply, Low-Power, 8-Channel, Serial 10-Bit ADCs with Internal Reference |
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PRODUCTION |
400ksps/300ksps, Single-Supply, Low-Power, 8-Channel, Serial 12-Bit ADCs with Internal Reference |
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PRODUCTION |
400ksps/300ksps, Single-Supply, Low-Power, 8-Channel, Serial 12-Bit ADCs with Internal Reference |
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PRODUCTION |
300ksps/400ksps, Single-Supply, 4-Channel, Serial 12-Bit ADCs with Internal Reference |
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PRODUCTION |
300ksps/400ksps, Single-Supply, 4-Channel, Serial 12-Bit ADCs with Internal Reference |
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PRODUCTION |
+2.7V to +5.25V Low-Power 8-Channel Serial 10-Bit ADCs |
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PRODUCTION |
10-Bit, 300ksps ADCs with FIFO and Internal Reference |
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Product3 |
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300ksps/400ksps, Single-Supply, Low-Power, 8-Channel, Serial 10-Bit ADCs with Internal Reference |
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10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports |
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10-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports |
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Single Channel A/D Converters4 |
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Obsolete |
400ksps/300ksps, Single-Supply, Low-Power, Serial 10-Bit ADCs with Internal Reference |
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PRODUCTION |
400ksps/300ksps, Single-Supply, Low-Power, Serial 10-Bit ADCs with Internal Reference |
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|
PRODUCTION |
400ksps/300ksps, Single-Supply, Low-Power, Serial 12-Bit ADCs with Internal Reference |
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PRODUCTION |
400ksps/300ksps, Single-Supply, Low-Power, Serial 12-Bit ADCs with Internal Reference |
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