MAX5893EGK+D【PDF 20/32 页】IC DAC 12BIT DUAL 500MSPS 68-QFN

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amplitudes. It is recommended to connect the trans-

former center tap to ground.

If a transformer is not used, the outputs must have a

resistive termination to ground. Figure 17 shows the

MAX5893 output configured for differential DC-coupled

mode. The DC-coupled configuration can be used to

eliminate waveform distortion due to highpass filter

effects. Applications include communication systems

employing analog quadrature upconverters and requir-

ing a high-speed DAC for baseband I/Q synthesis.

If a single-ended DC-coupled unipolar output is desir-

able, OUTIP (OUTQP) should be selected as the out-

put, and connect OUTIN (OUTQN) to ground. Using the

MAX5893 output single-ended is not recommended

because it introduces additional noise and distortion.

The distortion performance of the DAC also depends

on the load impedance. The MAX5893 is optimized for

a 50

double termination. It can be used with a trans-

former output as shown in Figure 16 or just one 25

resistor from each output to ground and one 50

resis-

tor between the outputs (Figure 17). Higher output ter-

mination resistors may be used, as long as each output

voltage does not exceed +1V with respect to GND, but

at the cost of degraded distortion performance and

increased output noise voltage.

Reference Input/Output

The MAX5893 supports operation with the on-chip 1.2V

bandgap reference or an external reference voltage

source. REFIO serves as the input for an external, low-

impedance reference source, and as the output if the

DAC is operating with the internal reference.

MAX5893

12-Bit, 500Msps Interpolating and Modulating

Dual DAC with CMOS Inputs

______________________________________________________________________________________

Figure 17. The DC-Coupled Differential Output Configuration

MAX5893

OUTQP

OUTQN

QDAC

OUTIP

OUTIN

IDAC

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MAX5893EGK+TD 功能描述:数模转换器- DAC 12-Bit 2Ch 500Msps DAC RoHS:否制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube

MAX5893EGK-D 功能描述:数模转换器- DAC RoHS:否制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube

MAX5893EGK-TD 功能描述:数模转换器- DAC RoHS:否制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube

MAX5893EVCMOD2 功能描述:数模转换器- DAC Evaluation Kit for the MAX5893/MAX5894/MAX5895 RoHS:否制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube

MAX5893EVKIT 功能描述:数模转换器- DAC Evaluation Kit for the MAX5893/MAX5894/MAX5895 RoHS:否制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube

MAX5894EGK+D 功能描述:数模转换器- DAC 14-Bit 2Ch 500Msps DAC RoHS:否制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube

MAX5894EGK+TD 功能描述:数模转换器- DAC 14-Bit 2Ch 500Msps DAC RoHS:否制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube

MAX5894EGK-D 功能描述:数模转换器- DAC RoHS:否制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube

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