DAC7716
- Bipolar Output: Up to ±16V
- Unipolar Output: 0V to +20V
- 12-Bit Monotonic
- Relative Accuracy: 1 LSB Max
- Low Zero and Gain Errors
- Before User Calibration: 0.5 LSB
- After User Calibration:
0.0078 LSB Zero Error, 0.0625 LSB Gain Error
- Low Noise: 60nV/
Hz - Settling Time: 6µs
- Configurable Gain: x2/x4
- Analog Output Monitor
- Power-Down Mode
- SPI: Up to 50MHz, 1.8V/3V/5V Logic
- Daisy-Chain Mode
- Operating Temperature: -40°C to +105°C
- Packages: QFN-40 (6x6mm), TQFP-48 (7x7mm)
- APPLICATIONS
- Automatic Test Equipment
- Instrumentation
- Industrial Process Control
- Communications
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The DAC7716 is a high-accuracy, quad-channel, 12-bit digital-to-analog converter (DAC) that operates from supply voltages of ±5V to ±18V in bipolar output mode, and from ±5V to +24V/-12V in unipolar mode. With a 5V reference, the DAC7716 can be configured to output ±10V, ±5V, 0V to 20V, or 0V to 10V. The DAC7716 provides 12-bit monotonicity, excellent integral nonlinearity (INL) error of ±1 LSB, low glitch, and low noise over the operating temperature range of -40°C to +105°C. This device is trimmed in production for very low zero and gain errors. In addition, the DAC7716 implements a user-programmable system-level calibration function to achieve ±0.0078 LSB zero error and ±0.0625 LSB gain error.
The DAC7716 has integrated reference buffers and output buffers. It features a standard high-speed 1.8V, 3V, or 5V serial peripheral interface (SPI) that operates at clock rates of up to 50MHz to communicate with a DSP or microprocessor. The four DAC channels and the auxiliary registers are addressed with four address bits. The device features double-buffered interface logic for simultaneous updates of all DACs. An asynchronous load input (LDAC) transfers data from the input data register to the DAC latch, and the contents of the DAC latch set the output voltage. The asynchronous RST input sets the output of all four DACs to 0V. The VMON pin is an analog monitor output that multiplexes the individual DAC outputs or the AIN pin.
The DAC7716 is pin-compatible with the DAC8734 (16-bit) and the DAC8234 (14-bit).
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | Quad, 12-Bit, High-Accuracy, ±16V Output, Serial Input D/A Converter 数据表 (Rev. A) | 2009-9-1 | |||
| 电路设计 | 从 +5V 电源生成 ±15V 的适用于高压数据转换器的精密电源电 路 | PDF | HTML | 英语版 | PDF | HTML | 2025-12-12 | |
| 电路设计 | 带外部反馈引脚的电压 DAC 输出过压保护电路 | PDF | HTML | 英语版 | PDF | HTML | 2025-10-10 |
设计与开发
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DAC7716EVM — DAC7716 评估模块
DAC7716EVM 包含 DAC7716 数模转换器。EVM 模块提供简单快捷的方法来评估这款高分辨率串行输入模数转换器 (DAC) 的功能和性能。默认情况下,DAC7716EVM 被设计为在双极输出范围内工作,但是也可以通过简单的切换更改将它配置为在单极输出范围内工作。EVM 提供串行接口头以轻松连接所有主机微处理器或 TI DSP 基本系统。已安装的精密电压基准 +5VDC 和 +2.5VDC 可通过板载开关 S2 和 S3 进行选择。REF5050(+5.0 VDC 电源)和 REF5025 (+2.5VDC) 与具有各种参考值的 REF50xx 系列引脚兼容。
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| TQFP (PFB) | 48 | Ultra Librarian |
| VQFN (RHA) | 40 | Ultra Librarian |
订购和质量
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