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Data Converters 
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Analog-to-Digital Converters
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MAX1031
10-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference
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Key Features
Applications/Uses
Parametric specs for Precision ADCs (< 5Msps)
| Resolution (bits) (ADC) | 10 |
| # Input Channels | 16 |
| 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) | 0.5 |
| External VREF (V) (max) | 3.65 |
| Unipolar VIN (V) (max) | 2.5 |
| Bipolar VIN (±V) (max) | 1.25 |
| INL (±LSB) | 0.1 |
| Package/Pins | QSOP/24 TQFN/28 |
| Budgetary Price (See Notes) | 4.93 |
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Parameters
Parametric specs for Precision ADCs (<u><</u> 5Msps)
| Resolution (bits) (ADC) | 10 |
| # Input Channels | 16 |
| 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) | 0.5 |
| External VREF (V) (max) | 3.65 |
| Unipolar VIN (V) (max) | 2.5 |
| Bipolar VIN (±V) (max) | 1.25 |
| INL (±LSB) | 0.1 |
| Package/Pins | QSOP/24 TQFN/28 |
| Budgetary Price (See Notes) | 4.93 |
Key Features
- Internal Temperature Sensor (±0.7°C Accuracy)
- 16-Entry First-In/First-Out (FIFO)
- Analog Multiplexer with True Differential Track/Hold
- 16-, 12-, 8-Channel Single Ended
- 8-, 6-, 4-Channel True Differential (Unipolar or Bipolar)
- Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing Codes Over Temperature
- Scan Mode, Internal Averaging, and Internal Clock
- Low-Power Single +3V Operation
- 1mA at 300ksps
- Internal 2.5V Reference or External Differential Reference
- 10MHz 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
- Space-Saving 28-Pin 5mm x 5mm TQFN Package
Applications/Uses
- Data Acquisition Systems
- Data Logging
- Industrial Control Systems
- Instrumentation
- Patient Monitoring
- System Supervision
Description
The MAX1027/MAX1029/MAX1031 are serial 10-bit analog-to-digital converters (ADCs) with an internal reference and an internal temperature sensor. These devices feature on-chip FIFO, scan mode, internal clock mode, internal averaging, and AutoShutdown™. The maximum sampling rate is 300ksps using an external clock. The MAX1031 has 16 input channels, the MAX1029 has 12 input channels, and the MAX1027 has 8 input channels. All input channels are configurable for single-ended or differential inputs in unipolar or bipolar mode. All three devices operate from a +3V supply and contain a 10MHz SPI™/QSPI™/MICROWIRE™-compatible serial port.
The MAX1031 is available in 28-pin, 5mm x 5mm, TQFN with exposed pad and 24-pin QSOP packages. The MAX1027/MAX1029 are only available in QSOP packages. All three devices are specified over the extended -40°C to +85°C temperature range.
The MAX1031 is available in 28-pin, 5mm x 5mm, TQFN with exposed pad and 24-pin QSOP packages. The MAX1027/MAX1029 are only available in QSOP packages. All three devices are specified over the extended -40°C to +85°C temperature range.
Technical Docs
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 .
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