DAC7565
- Relative Accuracy: 0.5LSB
- Glitch Energy: 0.15nV-s
- Internal Reference:
- 2.5V Reference Voltage (enabled by default)
- 0.004% Initial Accuracy (typ)
- 2ppm/°C Temperature Drift (typ)
- 5ppm/°C Temperature Drift (max)
- 20mA Sink/Source Capability
- Power-On Reset to Zero-Scale or Mid-Scale
- Asynchronous Clear to Zero-Scale or Mid-Scale
- Ultra-Low Power Operation: 1mA at 5V
- Wide Power-Supply Range: +2.7V to +5.5V
- 12-Bit Monotonic Over Temperature Range
- Settling Time: 10µs to ±0.024% Full-Scale Range (FSR)
- Low-Power Serial Interface with Schmitt-Triggered Inputs: Up to 50MHz
- On-Chip Output Buffer Amplifier with Rail-to-Rail Operation
- 1.8V to 5.5V Logic Compatibility
- Temperature Range: –40°C to +105°C
- Portable Instrumentation
- Closed-Loop Servo-Control
- Process Control, PLCs
- Data Acquisition Systems
- Programmable Attenuation
- PC Peripherals
SPI, QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor.
All other trademarks are the property of their respective owners.
The DAC7565 is a low-power, voltage-output, four-channel, 12-bit digital-to-analog converter (DAC). The device includes a 2.5V, 2ppm/°C internal reference (enabled by default), giving a full-scale output voltage range of 2.5V. The internal reference has an initial accuracy of 0.02% and can source up to 20mA at the VREFH/VREFOUT pin. The device is monotonic, provides very good linearity, and minimizes undesired code-to-code transient voltages (glitch). The DAC7565 uses a versatile 3-wire serial interface that operates at clock rates up to 50MHz. The interface is compatible with standard SPI™, QSPI™, Microwire™, and digital signal processor (DSP) interfaces.
The DAC7565 incorporates a power-on-reset circuit that ensures the DAC output powers up at either zero-scale or mid-scale until a valid code is written to the device. The device contains a power-down feature, accessed over the serial interface, that reduces the current consumption of the device to 1.3µA at 5V. Power consumption is 2.9mW at 3V, reducing to 1.5µW in power-down mode. The low power consumption, internal reference, and small footprint make this device ideal for portable, battery-operated equipment.
The DAC7565 is drop-in and functionally compatible with the DAC8165 and DAC8565, and functionally compatible with the DAC7564, DAC8164 and DAC8564. All these devices are available in a TSSOP-16 package.
技术文档
| 类型 | 标题 | 下载最新的英语版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 数据表 | 12-Bit, Quad, Ultra-Low Glitch, Voltage Output DAC w/ 2.5V, 2ppm/°C Int Ref 数据表 (Rev. B) | 2011年 3月 8日 | |||
| 应用手册 | 所选封装材料的热学和电学性质 | 2008年 10月 16日 | ||||
| 应用手册 | 高速数据转换 | 英语版 | 2008年 10月 16日 |
设计和开发
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DAC8564EVM — DAC8564 评估模块
该 EVM 具有 DAC8564 数模转化器 (DAC)。DAC8564/65EVM 是为快速简便地评估 16 位高分辨率、四通道串行输入 DAC（具有在默认情况下启用的内置 2.5V 内部参考）而设计的简单评估模块。该 EVM 具有可与任何主机微处理器或基于 TI DSP 的系统进行通信的串行接口。
DAC8565EVM — DAC8565 评估模块
该 EVM 具有 DAC8565 数模转化器 (DAC)。DAC8564/65EVM 是为快速简便地评估 16 位高分辨率、四通道串行输入 DAC（具有在默认情况下启用的内置 2.5V 内部参考）而设计的简单评估模块。该 EVM 具有可与任何主机微处理器或基于 TI DSP 的系统进行通信的串行接口。
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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TSSOP (PW) | 16 | Ultra Librarian |
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