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MyMaxim 订阅产品详情
主要特征
应用/用途
Parametric specs for Precision DACs (< 1MHz)
| Resolution (bits) | 14 |
| # Channels | 1 |
| Interface | Serial - SPI |
| Output Type | Voltage- Unbuffered |
| Reference | Ext. |
| INL (±LSB) (max) | 1 |
| Supply Range (V) (min) | 4.5 |
| Supply Range (V) (max) | 5.5 |
| ICC (mA) (max) | 0.2 |
| Settling Time (µs) (typ) | 1 |
| Package/Pins | UMAX/10 |
| Oper. Temp. (°C) | -40 to +85 |
| Budgetary Price (See Notes) | 6.54 |
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Technical Docs
参量
Parametric specs for Precision DACs (< 1MHz)
| Resolution (bits) | 14 |
| # Channels | 1 |
| Interface | Serial - SPI |
| Output Type | Voltage- Unbuffered |
| Reference | Ext. |
| INL (±LSB) (max) | 1 |
| Supply Range (V) (min) | 4.5 |
| Supply Range (V) (max) | 5.5 |
| ICC (mA) (max) | 0.2 |
| Settling Time (µs) (typ) | 1 |
| Package/Pins | UMAX/10 |
| Oper. Temp. (°C) | -40 to +85 |
| Budgetary Price (See Notes) | 6.54 |
主要特征
- Ultra-Small (3mm x 5mm) 8-Pin µMAX Package
- Low 120µA Supply Current
- Fast 1µs Settling Time
- 25MHz SPI/QSPI/MICROWIRE-Compatible Serial Interface
- VREF Range Extends to VDD
- +5V (MAX5141/MAX5142) or +3V (MAX5143/MAX5144) Single-Supply Operation
- Full 14-Bit Performance Without Adjustments
- Unbuffered Voltage Output Directly Drives 60kΩ Loads
- Power-On Reset Circuit Clears DAC Output to Code 0 (MAX5141/MAX5143) or Code 8192 (MAX5142/MAX5144)
- Schmitt-Trigger Inputs for Direct Optocoupler Interface
- Asynchronous Active-Low CLR
应用/用途
- 自动测试设备(ATE)
- 数据采集
- 高分辨率与增益调节
- 工业过程控制
描述
The MAX5141—MAX5144 are serial-input, voltage-output, 14-bit digital-to-analog converters (DACs) in tiny µMAX® packages, 50% smaller than comparable DACs in an 8-pin SO. They operate from low +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142) single supplies. They provide 14-bit performance (±1 LSB INL and DNL) over temperature without any adjustments. The DAC output is unbuffered, resulting in a low supply current of 120µA and a low offset error of 2 LSBs.
The DAC output range is 0V to VREF. For bipolar operation, matched scaling resistors are provided in the MAX5142/MAX5144 for use with an external precision op amp (such as the MAX400), generating a ±VREF output swing. A 16-bit serial word is used to load data into the DAC latch. The 25MHz, 3-wire serial interface is compatible with SPI™/QSPI™/MICROWIRE™, and can interface directly with optocouplers for applications requiring isolation. A power-on reset circuit clears the DAC output to code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/MAX5144) when power is initially applied. A logic low on active-low CLR asynchronously clears the DAC output to code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/MAX5144), independent of the serial interface. The MAX5141/MAX5143 are available in 8-pin µMAX packages and the MAX5142/MAX5144 are available in 10-pin µMAX packages.
The DAC output range is 0V to VREF. For bipolar operation, matched scaling resistors are provided in the MAX5142/MAX5144 for use with an external precision op amp (such as the MAX400), generating a ±VREF output swing. A 16-bit serial word is used to load data into the DAC latch. The 25MHz, 3-wire serial interface is compatible with SPI™/QSPI™/MICROWIRE™, and can interface directly with optocouplers for applications requiring isolation. A power-on reset circuit clears the DAC output to code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/MAX5144) when power is initially applied. A logic low on active-low CLR asynchronously clears the DAC output to code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/MAX5144), independent of the serial interface. The MAX5141/MAX5143 are available in 8-pin µMAX packages and the MAX5142/MAX5144 are available in 10-pin µMAX packages.
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