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The MAX1298/MAX1299 implement local and remote temperature sensing with 12-bit resolution, using +5V and +3V supply voltages, respectively. Accuracy is ±1°C from 0 to +70°C, with no calibration needed. The devices feature an algorithmic switched-capacitor analog-to-digital converter (ADC), an on-chip clock, and a 3-wire serial interface compatible with SPI, QSPI™, and MICROWIRE®.
The MAX1298/MAX1299 also perform fully differential voltage measurements with 12-bit resolution and separate track-and-hold (T/H) for positive and negative inputs. Both devices accept versatile input modes consisting of two 3-channel signal pairs, five 1-channel signals relative to an AIN5, or VDD/4 relative to ground. An external reference may be used for more accurate voltage measurements.
Typical power consumption is only 1.3mW (MAX1299). A shutdown mode and two standby modes provide multiple strategies for prolonging battery life in portable applications that require limited sampling throughput.
The MAX1298/MAX1299 are available in 16-pin SSOP packages.
主要特征
- Local and Remote Temperature Sensing
- 12-Bit Resolution for Temperature and Voltage Inputs
- ±1°C Accuracy from -40°C to +85°C
- Fully Differential Inputs
- Single-Supply Operation
- +4.75V to +5.25V (MAX1298)
- +2.7V to +3.6V (MAX1299)
- 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
- Internal Precision Voltage Reference
- 2.50V (MAX1298)
- 1.20V (MAX1299)
- Space-Saving 16-Pin SSOP Package
应用/用途
- 手持式仪表(PDA、掌上电脑)
- 工业过程控制
- 医疗装置
| Sensor Type | Local |
| # Channels | One |
| Interface | 3-Wire/SPI |
| Accuracy (±°C) | 1 |
| Parasite Pwr. | No |
| Temp. Resolution (bits) | 12 |
| Package/Pins | SSOP/16 |
| Resolution (bits) (ADC) | 12 |
| # Input Channels | 5 |
| Data Bus | SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | Diff. Only |
| Internal VREF (V) (nominal) | 2.5 |
| External VREF (V) (min) | 0.8 |
| External VREF (V) (max) | 2.5 |
| Unipolar VIN (V) (max) | 5 |
| Bipolar VIN (±V) (max) | 5 |
| INL (±LSB) | 1 |
| Package/Pins | SSOP/16 |
| Budgetary Price (See Notes) | $4.72 @1k |
技术文档
| 数据资料 | 12位串行输出温度传感器，带有5通道ADC | Apr 30, 2012 |
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参量
| Sensor Type | Local |
| # Channels | One |
| Interface | 3-Wire/SPI |
| Accuracy (±°C) | 1 |
| Parasite Pwr. | No |
| Temp. Resolution (bits) | 12 |
| Package/Pins | SSOP/16 |
| Resolution (bits) (ADC) | 12 |
| # Input Channels | 5 |
| Data Bus | SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | Diff. Only |
| Internal VREF (V) (nominal) | 2.5 |
| External VREF (V) (min) | 0.8 |
| External VREF (V) (max) | 2.5 |
| Unipolar VIN (V) (max) | 5 |
| Bipolar VIN (±V) (max) | 5 |
| INL (±LSB) | 1 |
| Package/Pins | SSOP/16 |
| Budgetary Price (See Notes) | $4.72 @1k |
主要特征
- Local and Remote Temperature Sensing
- 12-Bit Resolution for Temperature and Voltage Inputs
- ±1°C Accuracy from -40°C to +85°C
- Fully Differential Inputs
- Single-Supply Operation
- +4.75V to +5.25V (MAX1298)
- +2.7V to +3.6V (MAX1299)
- 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
- Internal Precision Voltage Reference
- 2.50V (MAX1298)
- 1.20V (MAX1299)
- Space-Saving 16-Pin SSOP Package
应用/用途
- 手持式仪表(PDA、掌上电脑)
- 工业过程控制
- 医疗装置
描述
The MAX1298/MAX1299 implement local and remote temperature sensing with 12-bit resolution, using +5V and +3V supply voltages, respectively. Accuracy is ±1°C from 0 to +70°C, with no calibration needed. The devices feature an algorithmic switched-capacitor analog-to-digital converter (ADC), an on-chip clock, and a 3-wire serial interface compatible with SPI, QSPI™, and MICROWIRE®.
The MAX1298/MAX1299 also perform fully differential voltage measurements with 12-bit resolution and separate track-and-hold (T/H) for positive and negative inputs. Both devices accept versatile input modes consisting of two 3-channel signal pairs, five 1-channel signals relative to an AIN5, or VDD/4 relative to ground. An external reference may be used for more accurate voltage measurements.
Typical power consumption is only 1.3mW (MAX1299). A shutdown mode and two standby modes provide multiple strategies for prolonging battery life in portable applications that require limited sampling throughput.
The MAX1298/MAX1299 are available in 16-pin SSOP packages.
技术文档
| 数据资料 | 12位串行输出温度传感器，带有5通道ADC | Apr 30, 2012 |
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