- 制造厂商:TI
- 产品类别:数据转换器
- 技术类目:数模转换器 (DAC) - 精密数模转换器 (<=10MSPS)
- 功能描述:八路、低功耗、12 位、+/-16.5V 输出并行输入数模转换器
- 点击这里打开及下载DAC7728的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
The DAC7728 is a low-power, octal, 12-bit digital-to-analog converter (DAC). With a 5V reference, the output can either be a bipolar ±15V voltage when operating from a dual ±15.5V (or higher) power supply, or a unipolar 0V to +30V voltage when operating from a +30.5V power supply. With a 5.5V reference, the output can either be ±16.5V for a dual ±17V (or higher) power supply, or a unipolar 0V to +33V voltage when operating from a +33.5V (or higher) power supply. This DAC provides low-power operation, good linearity, and low glitch over the specified temperature range of –40°C to +105°C. This device is trimmed in manufacturing and has very low zero and full-scale error. In addition, user calibration can be performed over the entire signal chain. The output range can be offset by using the DAC Offset Register.
The DAC7728 features a standard, high-speed, 12-bit parallel interface that operates at up to 50MHz and is 1.8V, 3V, and 5V logic compatible, to communicate with a DSP or microprocessor. The eight DACs and the auxiliary registers are addressed with five address lines. The device features double-buffered interface logic. An asynchronous load input (LDAC) transfers data from the DAC data register to the DAC latch. The asynchronous CLR input sets the output of all eight DACs to AGND. The VMON pin is a monitor output that connects to the individual analog outputs, the offset DAC, and the reference buffer outputs through a multiplexer (mux).
The DAC7728 is pin-to-pin compatible with the DAC8728 (16-bit) and the DAC8228 (14-bit).
- Bipolar Output: ±3V, up to ±16.5V
- Unipolar Output: 0V to +33V
- 12-Bit Resolution
- Low Power: 13.5mW/Ch
- Relative Accuracy: 1LSB Max
- Flexible User Calibration
- Low Zero/Gain Error: ±1 LSB Max
- Low Glitch: 4nV-s
- Settling Time: 15μs
- Channel Monitor Output
- Programmable Gain: x4, x6
- Programmable Offset
- 12-Bit Parallel Interface: 50MHz (Write Operation)
- Packages: QFN-56 (8mm x 8mm), TQFP-64 (10mm x 10mm)
- APPLICATIONS
- Automatic Test Equipment
- PLC and Industrial Process Control
- Communications
- Resolution (Bits)
- 12
- Number of DAC channels (#)
- 8
- Interface type
- Parallel
- Output type
- Buffered Voltage
- Settling time (μs)
- 15
- Features
- On-chip Offset and Gain Calibration, Reset to Mid-Scale
- Reference type
- Ext
- Architecture
- String
- Rating
- Catalog
- Output range (Max) (mA/V)
- 33
- Output range (Min) (mA/V)
- -16.5
- Operating temperature range (C)
- -40 to 105
DAC7728的完整型号有:DAC7728SPAG、DAC7728SPAGR、DAC7728SRTQR、DAC7728SRTQT,以下是这些产品的关键参数及官网采购报价:
DAC7728SPAG,工作温度:-40 to 105,封装:TQFP (PAG)-64,包装数量MPQ:160个,MSL 等级/回流焊峰值温度:Level-4-260C-72 HR,引脚镀层/焊球材料:NIPDAU,TI官网DAC7728SPAG的批量USD价格:10.397(1000+)
DAC7728SPAGR,工作温度:-40 to 105,封装:TQFP (PAG)-64,包装数量MPQ:1500个,MSL 等级/回流焊峰值温度:Level-4-260C-72 HR,引脚镀层/焊球材料:NIPDAU,TI官网DAC7728SPAGR的批量USD价格:8.664(1000+)
DAC7728SRTQR,工作温度:-40 to 105,封装:QFN (RTQ)-56,包装数量MPQ:2000个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:NIPDAU,TI官网DAC7728SRTQR的批量USD价格:8.664(1000+)
DAC7728SRTQT,工作温度:-40 to 105,封装:QFN (RTQ)-56,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-3-260C-168 HR,引脚镀层/焊球材料:NIPDAU,TI官网DAC7728SRTQT的批量USD价格:10.397(1000+)
DAC7728 IBIS Model
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