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DAC8234的基本参数
  • 制造厂商:TI
  • 产品类别:数据转换器
  • 技术类目:数模转换器 (DAC) - 精密数模转换器 (<=10MSPS)
  • 功能描述:四路 14 位高精度 +/-16.5V 输出串行输入数模转换器
  • 点击这里打开及下载DAC8234的技术文档资料
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DAC8234的产品详情:

The DAC8234 is a high-accuracy, quad-channel, 14-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 DAC8234 can be configured to output ±10V, ±5V, 0V to 20V, or 0V to 10V. The DAC8234 provides 14-bit monotonicity, excellent integral nonlinearity (INL) error of ±0.5 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 DAC8234 implements a user-programmable system-level calibration function to achieve ±0.031 LSB zero error and ±0.25 LSB gain error.

The DAC8234 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 DAC8234 is pin-compatible with the DAC8734 (16-bit) and the DAC7716 (12-bit).

DAC8234的优势和特性:
  • Bipolar Output: Up to ±16V
  • Unipolar Output: 0V to +20V
  • 14-Bit Monotonic
  • Relative Accuracy: 0.5 LSB Max
  • Low Zero and Gain Errors
    • Before User Calibration: 1 LSB
    • After User Calibration: 0.031 LSB Zero Error, 0.25 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

All trademarks are the property of their respective owners.

DAC8234的参数(英文):
  • Resolution (Bits)
  • 14
  • Number of DAC channels (#)
  • 4
  • Interface type
  • SPI
  • Output type
  • Buffered Voltage
  • Settling time (μs)
  • 6
  • Features
  • On-chip Offset and Gain Calibration, SDO
  • Reference type
  • Ext
  • Architecture
  • R-2R
  • Rating
  • Catalog
  • Output range (Max) (mA/V)
  • 16.5
  • Output range (Min) (mA/V)
  • -16.5
  • Operating temperature range (C)
  • -40 to 105
DAC8234具体的完整产品型号参数及价格(美元):

DAC8234的完整型号有:DAC8234SPFB、DAC8234SPFBR、DAC8234SRHAR、DAC8234SRHAT,以下是这些产品的关键参数及官网采购报价:

DAC8234SPFB,工作温度:-40 to 105,封装:TQFP (PFB)-48,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网DAC8234SPFB的批量USD价格:16.472(1000+)

DAC8234SPFBR,工作温度:-40 to 105,封装:TQFP (PFB)-48,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网DAC8234SPFBR的批量USD价格:14.472(1000+)

DAC8234SRHAR,工作温度:-40 to 105,封装:VQFN (RHA)-40,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网DAC8234SRHAR的批量USD价格:14.472(1000+)

DAC8234SRHAT,工作温度:-40 to 105,封装:VQFN (RHA)-40,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网DAC8234SRHAT的批量USD价格:16.472(1000+)

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