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.
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MAX1027-MAX1031 Data Sheet | MAX1027-MAX1031.pdf |
Part Number | Resolution (bits) | Input Chan. | Conv. Rate (ksps) | ADC Architecture | Data Bus | Diff/S.E. Input | Internal VREF (V) | External VREF (V) | External VREF (V) | Unipolar VIN (V) | Bipolar VIN (±V) | SNR (dB) | THD (dB) | INL (±LSB) | Package/Pins | Budgetary Price |
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ADC | max | nominal | min | max | max | max | See Notes | |||||||||
MAX1027 | 10 | 8 | 300 | SAR | SPI | Both | 2.5 | 0.5 | 3.65 | 2.5 | 1.25 | 70 | -82 | 0.1 | QSOP/16 | $4.95 @1k |
MAX1029 | 12 | QSOP/20 | $5.50 @1k | |||||||||||||
MAX1031 | 16 | QSOP/24 TQFN/28 | $4.43 @1k | |||||||||||||
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
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MAX1031BCEG | No Longer Available | MAX1031BCEG+ | QSOP;24 pin | 0°C to +70°C | See data sheet |
MAX1031BCEG+ | Active | QSOP,;24 pin;54.2 mm² | 0°C to +70°C | Lead Free | |
MAX1031BCEG+T | Active | QSOP;24 pin | 0°C to +70°C | See data sheet | |
MAX1031BCEG-T | No Longer Available | QSOP;24 pin | 0°C to +70°C | See data sheet | |
MAX1031BCTI | No Longer Available | MAX1031BCTI+ | TQFN,;28 pin;26 mm² | 0°C to +70°C | No |
MAX1031BCTI+ | Active | TQFN,;28 pin;26 mm² | 0°C to +70°C | Lead Free | |
MAX1031BCTI+T | Active | TQFN,;28 pin;26 mm² | 0°C to +70°C | Lead Free | |
MAX1031BCTI-T | No Longer Available | MAX1031BCTI+T | QFN;28 pin | 0°C to +70°C | See data sheet |
MAX1031BEEG | No Longer Available | MAX1031BEEG+ | QSOP;24 pin | -40°C to +85°C | See data sheet |
MAX1031BEEG+ | Active | QSOP,;24 pin;54.2 mm² | -40°C to +85°C | Lead Free | |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
MAX1031BEEG+T | Active | QSOP,;24 pin;54.2 mm² | -40°C to +85°C | Lead Free | |
MAX1031BEEG-T | No Longer Available | MAX1031BEEG+T | QSOP;24 pin | -40°C to +85°C | See data sheet |
MAX1031BETI | No Longer Available | MAX1031BETI+ | TQFN,;28 pin;26 mm² | -40°C to +85°C | No |
MAX1031BETI+ | Active | TQFN,;28 pin;26 mm² | -40°C to +85°C | Lead Free | |
MAX1031BETI+T | Active | TQFN,;28 pin;26 mm² | -40°C to +85°C | Lead Free | |
MAX1031BETI-T | No Longer Available | MAX1031BETI+T | QFN;28 pin | -40°C to +85°C | See data sheet |