参数资料
型号: LTC1659IMS8#TRPBF
厂商: Linear Technology
文件页数: 11/12页
文件大小: 0K
描述: IC DAC 12BIT R-R 8-MSOP
标准包装: 2,500
设置时间: 14µs
位数: 12
数据接口: 串行
转换器数目: 1
电压电源: 单电源
功率耗散(最大): 720µW
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-MSOP
包装: 带卷 (TR)
输出数目和类型: 1 电压,单极
采样率(每秒): *
LTC1659
8
1659fa
OPERATION
Serial Interface
The data on the DIN input is loaded into the shift register
on the rising edge of the clock. The MSB is loaded rst.
The DAC register loads the data from the shift register
when
CS/LD is pulled high. The CLK is disabled internally
when
CS/LD is high. Note: CLK must be low before CS/LD
is pulled low to avoid an extra internal clock pulse.
The buffered output of the 12-bit shift register is available
on the DOUT pin which swings from GND to VCC. Multiple
LTC1659s may be daisy-chained together by connecting
the DOUT pin to the DIN pin of the next chip, while the CLK
and
CS/LD signals remain common to all chips in the
daisy chain. The serial data is clocked to all of the chips,
then the
CS/LD signal is pulled high to update all of them
simultaneously.
Voltage Output
The LTC1659’s rail-to-rail buffered output can source or
sink 5mA over the entire operating temperature range
while pulling to within 300mV of the positive supply
voltage or ground. The output swings to within a few
millivolts of either supply rail when unloaded and has an
equivalent output resistance of 40
Ω when driving a load
to the rails. The output can drive 1000pF without going
into oscillation.
The output swings from 0V to the voltage at the REF pin,
i.e., there is a gain of 1 from the REF to VOUT. Please
note if REF is tied to VCC the output can only swing to
(VCC – VOS). See Applications Information.
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