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MyMaxim 订阅产品详情
主要特征
应用/用途
Parametric specs for Precision ADCs (< 5Msps)
| Resolution (bits) (ADC) | 8 |
| # Input Channels | 2 |
| Conv. Rate (ksps) (max) | 50 |
| Data Bus | SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | Both |
| Internal VREF (V) (nominal) | 4.096 |
| External VREF (V) (min) | 1 |
| External VREF (V) (max) | 5.5 |
| Unipolar VIN (V) (max) | 4.096 |
| Bipolar VIN (±V) (max) | 2.048 |
| INL (±LSB) | 0.15 |
| Package/Pins | UMAX/10 |
| Budgetary Price (See Notes) | 2.63 |
缩小
简化框图
Technical Docs
| 数据资料 | 单电源、低功耗、2通道、串行8位ADC | Jun 12, 2003 | |
| 应用笔记 | 节能：一叶知秋 |
参量
Parametric specs for Precision ADCs (<u><</u> 5Msps)
| Resolution (bits) (ADC) | 8 |
| # Input Channels | 2 |
| Conv. Rate (ksps) (max) | 50 |
| Data Bus | SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | Both |
| Internal VREF (V) (nominal) | 4.096 |
| External VREF (V) (min) | 1 |
| External VREF (V) (max) | 5.5 |
| Unipolar VIN (V) (max) | 4.096 |
| Bipolar VIN (±V) (max) | 2.048 |
| INL (±LSB) | 0.15 |
| Package/Pins | UMAX/10 |
| Budgetary Price (See Notes) | 2.63 |
主要特征
- Single Supply:
- +2.7V to +3.6V (MAX1108)
- +4.5V to +5.5V (MAX1109)
- Low Power:
- 105µA at +3V and 50ksps
- 0.5µA in Power-Down Mode
- Software-Configurable Unipolar or Bipolar Inputs
- Input Voltage Range: 0 to VDD
- Internal Track/Hold
- Internal Reference:
- +2.048V (MAX1108)
- +4.096V (MAX1109)
- Reference Input Range: 1V to VDD
- SPI/QSPI/MICROWIRE-Compatible Serial Interface
- VDD Monitoring Mode
- Small 10-Pin µMAX Package
应用/用途
- 4mA至20mA供电远端系统
- 手持式测量设备
- 医疗仪器
- 便携式数据记录
- 接收信号强度指示
- 太阳能供电远端系统
- 系统诊断
描述
The MAX1108/MAX1109 low-power, 8-bit, dual-channel, analog-to-digital converters (ADCs) feature an internal track/hold (T/H) voltage reference, clock, and serial interface. The MAX1108 is specified from +2.7V to +3.6V and consumes only 105µA. The MAX1109 is specified from +4.5V to +5.5V and consumes only 130µA. The analog inputs are software configurable, allowing unipolar/bipolar and single-ended/differential operation; battery monitoring capability is also included.
The full-scale analog input range is determined by the internal reference of +2.048V (MAX1108) or +4.096V (MAX1109), or by an externally applied reference ranging from 1V to VDD. The MAX1108/MAX1109 also feature a software power-down mode that reduces power consumption to 0.5µA when the device is not in use. The 4-wire serial interface directly connects to SPI, QSPI, and MICROWIRE devices without external logic. Conversions up to 50ksps are performed using either the internal clock or an external serial-interface clock.
The MAX1108 and MAX1109 are available in a 10-pin µMAX package with a footprint that is just 20% of an 8-pin plastic DIP.
The full-scale analog input range is determined by the internal reference of +2.048V (MAX1108) or +4.096V (MAX1109), or by an externally applied reference ranging from 1V to VDD. The MAX1108/MAX1109 also feature a software power-down mode that reduces power consumption to 0.5µA when the device is not in use. The 4-wire serial interface directly connects to SPI, QSPI, and MICROWIRE devices without external logic. Conversions up to 50ksps are performed using either the internal clock or an external serial-interface clock.
The MAX1108 and MAX1109 are available in a 10-pin µMAX package with a footprint that is just 20% of an 8-pin plastic DIP.
Technical Docs
| 数据资料 | 单电源、低功耗、2通道、串行8位ADC | Jun 12, 2003 | |
| 应用笔记 | 节能：一叶知秋 |
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