MAX1229：12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference
The MAX1227/MAX1229/MAX1231 are serial 12-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 MAX1231 has 16 input channels, the MAX1229 has 12 input channels, and the MAX1227 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 MAX1231 is available in 28-pin 5mm x 5mm TQFN with exposed pad and 24-pin QSOP packages. The MAX1227/MAX1229 are only available in QSOP packages. All three devices are specified over the extended -40°C to +85°C temperature range.
Key Features
| MAX1227, MAX1229, MAX1231: Functional Diagram Applications/Uses
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DataSheet
| title | Download file |
|---|---|
| MAX1227-MAX1231 Data Sheet | MAX1227-MAX1231.pdf |
Parametrics
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADC | max | nominal | min | max | max | max | See Notes | |||||||||
| MAX1227 | 12 | 8 | 300 | SAR | SPI | Both | 2.5 | 1 | 3.6 | 2.5 | 1.25 | 70 | -82 | 1 | QSOP/16 | $8.02 @1k |
| MAX1229 | 12 | QSOP/20 | $7.62 @1k | |||||||||||||
| MAX1231 | 16 | QSOP/24 TQFN/28 | $5.50 @1k | |||||||||||||
Design kits & evaluation modules
Related Products
- MAX11637：12-Bit, 300ksps ADCs with Differential Track/Hold, and Internal Reference
- MAX11629：12-Bit, 300ksps ADCs with FIFO and Internal Reference
- MAX1257：12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports
- MAX1230：12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference
- MAX1231：12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference
- MAX146：+2.7V, Low-Power, 8-Channel, Serial 12-Bit ADCs
Ordering Information
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| MAX1229ACEP | No Longer Available | MAX1229BCEP+ | QSOP,;20 pin;54.2 mm² | 0°C to +70°C | No |
| MAX1229ACEP+ | No Longer Available | MAX1229BCEP+ | QSOP,;20 pin;54.2 mm² | 0°C to +70°C | Lead Free |
| MAX1229ACEP+T | No Longer Available | MAX1229BCEP+ | QSOP;20 pin | 0°C to +70°C | See data sheet |
| MAX1229ACEP-T | No Longer Available | MAX1229BCEP+ | QSOP;20 pin | 0°C to +70°C | See data sheet |
| MAX1229AEEP | No Longer Available | MAX1229BEEP+ | QSOP,;20 pin;54.2 mm² | -40°C to +85°C | No |
| MAX1229AEEP+ | No Longer Available | MAX1229BEEP+ | QSOP,;20 pin;54.2 mm² | -40°C to +85°C | Lead Free |
| MAX1229AEEP+T | No Longer Available | MAX1229BEEP+ | QSOP;20 pin | -40°C to +85°C | See data sheet |
| MAX1229AEEP-T | No Longer Available | MAX1229BEEP+ | QSOP;20 pin | -40°C to +85°C | See data sheet |
| MAX1229BCEP | No Longer Available | MAX1229BCEP+ | QSOP;20 pin | 0°C to +70°C | See data sheet |
| MAX1229BCEP+ | Active | QSOP,;20 pin;54.2 mm² | 0°C to +70°C | Lead Free | |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX1229BCEP+T | Active | QSOP,;20 pin;54.2 mm² | 0°C to +70°C | Lead Free | |
| MAX1229BCEP-T | No Longer Available | MAX1229BCEP+T | QSOP;20 pin | 0°C to +70°C | See data sheet |
| MAX1229BEEP | No Longer Available | MAX1229BEEP+ | QSOP;20 pin | -40°C to +85°C | See data sheet |
| MAX1229BEEP+ | Active | QSOP,;20 pin;54.2 mm² | -40°C to +85°C | Lead Free | |
| MAX1229BEEP+T | Active | QSOP,;20 pin;54.2 mm² | -40°C to +85°C | Lead Free | |
| MAX1229BEEP-T | No Longer Available | MAX1229BEEP+T | QSOP;20 pin | -40°C to +85°C | See data sheet |
- MAX1227-MAX1231.pdf MAX1231
