AD7243: CMOS, 12-Bit Serial DACPORT
The AD7243 is a complete 12-bit, voltage ouptut, digital-to-analog converter with output amplifier and Zener voltage reference on a monolithic CMOS chip. No external trims are required to achieve full specified performance.
The output amplifier is capable of developing +10V across a 2k(Ohm) load. The output voltage ranges with single supply operation are 0 to +5 V or 0 to +10V, while an additional bipolar ±5 V ouput range is available with dual supplies. The ranges are selected using the internal gain resistor.
The data format is natural binary in both unipolar ranges, while either offset binary or 2s complement format may be selected in the bipolar range. A CLR funtion is provided which set the output to 0 V in both unipolar ranges and in the 2s complement bipolar range, while with offset binary data format, the output is set -REFIN. This function is useful as a power-on reset as it allows the ouput to be set to a known voltage level.
The AD7243 features a fast versatile serial interface which allows easy connection to both microcomputers and 16-bit digital signal processors with serial ports. The serial data may be applied at rates up to 5 MHz allowing a DAC update rate of 300 kHz. A serial data output capability is also provided which allows daisy chaining in multi-DAC systems. This feature allows any number of DACs to be used in a system with a simple 4-wire interface. All DACs may be updated simultaneously using LDAC.
The AD7243 is fabricated on Linear Compatible CMOS (LC2MOS), an advanced, mixed technology process. It is packaged in 16-pin DIP and 16-pin SOIC packages.
AD7243 特点
- 12-Bit CMOS DAC with
On-Chip Voltage Reference
Output Amplifier - Three Selectable Output Ranges
-5 V to + 5 V, 0 V to +5 V, 0 V to +10 V - Serial Interface
- 300 kHz DAC Update Rate
- Small Size: 16-Lead DIP or SOIC
- Nonlinearity: ±1/2 LSB Tmin to Tmax
- Low Power Dissipation: 100 mW Typical
AD7243 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| 5962-9320401MEA | 量产 | 16 ld CerDIP | 16 | 商业 |
| AD7243AN | 量产 | 16 ld PDIP | 16 | 工业 |
| AD7243ANZ | 量产 | 16 ld PDIP | 16 | 工业 |
| AD7243AR | 量产 | 16 ld SOIC - Wide | 16 | 商业 |
| AD7243AR-REEL | 量产 | 16 ld SOIC - Wide | 16 | 商业 |
| AD7243ARZ | 量产 | 16 ld SOIC - Wide | 16 | 商业 |
| AD7243ARZ-REEL | 量产 | 16 ld SOIC - Wide | 16 | 商业 |
| AD7243BN | 量产 | 16 ld PDIP | 16 | 工业 |
| AD7243BNZ | 量产 | 16 ld PDIP | 16 | 工业 |
| AD7243BQ | 量产 | 16 ld CerDIP | 16 | 工业 |
| AD7243BR | 量产 | 16 ld SOIC - Wide | 16 | 商业 |
| AD7243BR-REEL | 量产 | 16 ld SOIC - Wide | 16 | 商业 |
| AD7243BRZ | 量产 | 16 ld SOIC - Wide | 16 | 商业 |
| AD7243BRZ-REEL | 量产 | 16 ld SOIC - Wide | 16 | 商业 |