DAC8802 - 14 位双通道串行接口乘法数模转换器

DAC8802是TI德州仪器公司的一款精密DAC(=<10MSPS)产品，DAC8802是14 位双通道串行接口乘法数模转换器，本站介绍了DAC8802的封装应用图解、特点和优点、功能等，并给出了与DAC8802相关的TI元器件型号供参考。

DAC8802 - 14 位双通道串行接口乘法数模转换器 - 精密DAC(=<10MSPS) - 数模转换器 - 德州仪器

产品描述

The DAC8802 is a dual, 14-bit, current-output digital-to-analogconverter (DAC) designed to operate from a single 2.7 V to 5.5 V supply.

The applied external reference input voltage VREF determines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external I-to-V precision amplifier.

A doubled-buffered, serial data interface offers high-speed, 3-wire, SPI and microcontroller compatible inputs using serial data in (SDI), clock (CLK), and a chip-select (CS). A common level-sensitive load DAC strobe (LDAC) input allows simultaneous update of all DAC outputs from previously loaded input registers. Additionally, an internal power-on reset forces the output voltage to zero at system turn-on. An MSB pin allows system reset assertion (RS) to force all registers to zero code when MSB = 0, or to half-scale code when MSB = 1.

The DAC8802 is available in an TSSOP-16 package.

产品特性

Relative Accuracy: 1 LSB Max
Differential Nonlinearity: 1 LSB Max
2-mA Full-Scale Current ±20%, with VREF = ±10 V
0.5 µs Settling Time
Midscale or Zero-Scale Reset
Separate 4Q MultiplyingReference Inputs
Reference Bandwidth: 10 MHz
Reference Dynamics: -105 dB THD
SPI™-Compatible 3-Wire Interface: 50 MHz
Double Buffered Registers to Enable Simultaneous Multichannel Update
Internal Power-On Reset
Industry-Standard Pin Configuration
APPLICATIONS
- Automatic Test Equipment
- Instrumentation
- Digitally Controlled Calibration

SPI is a trademark of Motorola, Inc. All other trademarks are the property of their respective owners.

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