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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) | 12 |
| # Input Channels | 1 |
| Conv. Rate (ksps) (max) | 100 |
| Data Bus | µP/8 SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | Diff. Only |
| Internal VREF (V) (nominal) | 4.096 |
| External VREF (V) (min) | 2.5 |
| External VREF (V) (max) | 5 |
| Unipolar VIN (V) (max) | 4.096 |
| INL (±LSB) | 1 |
| Package/Pins | PDIP/24 SOIC (W)/24 |
| Budgetary Price (See Notes) | 13.95 |
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简化框图
Technical Docs
| 数据资料 | 低功耗、12位采样ADC，内置电压基准及关断模式 | Feb 01, 1997 |
参量
Parametric specs for Precision ADCs (<u><</u> 5Msps)
| Resolution (bits) (ADC) | 12 |
| # Input Channels | 1 |
| Conv. Rate (ksps) (max) | 100 |
| Data Bus | µP/8 SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | Diff. Only |
| Internal VREF (V) (nominal) | 4.096 |
| External VREF (V) (min) | 2.5 |
| External VREF (V) (max) | 5 |
| Unipolar VIN (V) (max) | 4.096 |
| INL (±LSB) | 1 |
| Package/Pins | PDIP/24 SOIC (W)/24 |
| Budgetary Price (See Notes) | 13.95 |
主要特征
- 12-Bit Resolution, 1/2 LSB Linearity
- +5V or ±5V Operation
- Built-In Track/Hold
- Internal Reference with Adjustment Capability
- Low Power:
- 3mA Operating Mode
- 20µA Power-Down Mode
- 100ksps Tested Sampling Rate
- Serial and 8-Bit Parallel µP Interface
- 24-Pin Narrow DIP and Wide SO Packages
应用/用途
- 自动测试设备(ATE)
- 电池供电数据记录
- 数据采集
- 数字信号处理(DSP)
- 机电系统
- 高精度过程控制
- PC笔输入量化器
- 电信
描述
The MAX191 is a monolithic, CMOS, 12-bit analog-to-digital converter (ADC) featuring differential inputs, track/hold (T/H), internal voltage reference, internal or external clock, and parallel or serial µP interface. The MAX191 has a 7.5µs conversion time, a 2µs acquisition time, and a guaranteed 100ksps sample rate.
The MAX191 operates from a single +5V supply or from dual ±5V supplies, allowing ground-referenced bipolar input signals. The device features a logic power-down input, which reduces the 3mA VDD supply current to 50µA max, including the internal-reference current.
Decoupling capacitors are the only external components needed for the power supply and reference. This ADC operates with either an external reference, or an internal reference that features an adjustment input for trimming system gain errors.
The MAX191 provides three interface modes: two 8-bit parallel modes, and a serial interface mode that is compatible with SPI™, QSPI™, and MICROWIRE™ serial-interface standards.
The MAX191 operates from a single +5V supply or from dual ±5V supplies, allowing ground-referenced bipolar input signals. The device features a logic power-down input, which reduces the 3mA VDD supply current to 50µA max, including the internal-reference current.
Decoupling capacitors are the only external components needed for the power supply and reference. This ADC operates with either an external reference, or an internal reference that features an adjustment input for trimming system gain errors.
The MAX191 provides three interface modes: two 8-bit parallel modes, and a serial interface mode that is compatible with SPI™, QSPI™, and MICROWIRE™ serial-interface standards.
Technical Docs
| 数据资料 | 低功耗、12位采样ADC，内置电压基准及关断模式 | Feb 01, 1997 |
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