The DAC7678 is a low-power, voltage-output, eight-channel, 12-bit digital-to-analog converter (DAC). The DAC7678 includes a 2.5V internal reference (disabled by default), giving a full-scale output voltage range of 5V. The internal reference initial accuracy is ±1mV and can source up to 20mA at the VREFIN/VREFOUT pin. The device is monotonic, provides very good linearity, and minimizes undesired code-to-code transient voltages (glitch).
The DAC7678 uses a versatile, two-wire serial interface that is I2C-compatible and operates at clock rates of up to 3.4MHz. Multiple devices can share the same bus.
The DAC7678 incorporates a power-on-reset circuit that ensures the DAC output powers on at either zero-scale or midscale until a valid code is written to the device.
DAC5578 | DAC6578 | DAC7578 | DAC7678 | |
Resolution(Bits) | 8 | 10 | 12 | 12 |
DAC: Channels | 8 | 8 | 8 | 8 |
Settling Time(µs) | 6 | 6 | 6 | 6 |
Interface | I2C | I2C | I2C | I2C |
Output Type | Voltage | Voltage | Voltage | Voltage |
Output Range Min.(V or mA) | 0 | 0V | 0V | 0V |
Output Range Max.(V or mA) | 5.5V | 5.5V | 5.5V | 5.5V |
Single/Dual Analog Supply | Single Supply | Single Supply | Single Supply | Single Supply |
DNL(Max)(+/-LSB) | 0.1 | 0.2 | 0.25 | 0.25 |
INL(Max)(+/-LSB) | 0.25 | 0.5 | 1 | 1 |
INL (+/-)(Max)(%) | 0.098 | 0.0489 | 0.0244 | 0.0244 |
Monotonicity | 8 | 10 | 12 | 12 |
Power Consumption(Typ)(mW) | 3.4 | 3.4 | 3.4 | 3.4 |
Architecture | String | String | String | String |
Reference: Type | Ext | Ext | Ext | Int/Ext |
Analog Voltage AV/DD(Min)(V) | 2.7 | 2.7 | 2.7 | 2.7 |
Analog Voltage AV/DD(Max)(V) | 5.5 | 5.5 | 5.5 | 5.5 |
No. of Supplies (Unipolar) | 1 | 1 | 1 | 1 |
Rating | Catalog | Catalog | Catalog | Catalog |
Pin/Package | 16TSSOP, 24VQFN | 16TSSOP, 24VQFN | 16TSSOP, 24VQFN | 16TSSOP, 24VQFN |
Operating Temperature Range(°C) | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 |
器件 | 状态 | 温度 (oC) | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
DAC7678SPW | PREVIEW | -40 to 125 | TSSOP (PW) | 16 | 90 | DAC7678 |
DAC7678SPWR | PREVIEW | -40 to 125 | TSSOP (PW) | 16 | 2000 | DAC7678 |
DAC7678SRGER | PREVIEW | -40 to 125 | TSSOP (PW) | 16 | 3000 | DAC7678 |
DAC7678SRGET | PREVIEW | -40 to 125 | TSSOP (PW) | 16 | 250 | DAC7678 |
名称 | 型号 | 公司 | 工具/软件类型 |
DAC7678 评估模块 | DAC7678EVM | Texas Instruments | 开发电路板/EVM |
针对 Code Composer Studio 的 DCPFREETOOL 软件插件 | DCPFREETOOL | Texas Instruments | 实用程序/插件 |
MDACBufferPro Design Utility for Multiplying Digital to Analog Converter Design | MDACBUFFERPRO | Texas Instruments | 应用软件 |