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参数资料
| 型号： | AD5305BRMZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/24页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT 2WIRE I2C 10-MSOP |
| 产品培训模块： | Data Converter Fundamentals DAC Architectures |
| 标准包装： | 1,000 |
| 设置时间： | 6µs |
| 位数： | 8 |
| 数据接口： | I²C，串行 |
| 转换器数目： | 4 |
| 电压电源： | 单电源 |
| 功率耗散（最大）： | 5mW |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 4 电压，单极；4 电压，双极 |
| 采样率（每秒）： | 167k |
AD5305/AD5315/AD5325
Rev. G | Page 19 of 24
When both bits are set to 0, the DAC works normally with its
normal power consumption of 600 μA at 5 V. However, for the
three power-down modes, the supply current falls to 200 nA at
5 V (80 nA at 3 V). Not only does the supply current drop, but
the output stage is also internally switched from the output of
the amplifier to a resistor network of known values. This has an
advantageous because the output impedance of the part is known
while the part is in power-down mode and provides a defined
input condition for whatever is connected to the output of the
DAC amplifier. There are three different options. The output is
connected internally to GND through a 1 kΩ resistor, a 100 kΩ
resistor, or it is left open-circuited (three-state). Resistor
tolerance = ±20%. The output stage is illustrated in Figure 35.
AMPLIFIER
RESISTOR
STRING DAC
POWER-DOWN
CIRCUITRY
VOUT
RESISTOR
NETWORK
0
93
0-
0
35
Figure 35. Output Stage During Power-Down
The bias generator, the output amplifiers, the resistor string, and
all other associated linear circuitry are shut down when the
power-down mode is activated. However, the contents of the
DAC registers are unchanged when in power-down. The time to
exit power-down is typically 2.5 μs for VDD = 5 V and 5 μs when
VDD = 3 V. This is the time from the rising edge of the eighth
SCL pulse to when the output voltage deviates from its power-
down voltage. See Figure 21 for a plot.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD5305BRMZ-REEL71 | 制造商:AD 制造商全称:Analog Devices 功能描述:2.5 V to 5.5 V, 500 ??A, 2-Wire Interface Interface |
| AD5306 | 制造商:AD 制造商全称:Analog Devices 功能描述:2.5 V to 5.5 V, 500 uA, Parallel Interface Quad Voltage-Output 8-/10-/12-Bit DACs |
| AD53062 | 制造商:Analog Devices 功能描述: |
| AD53063-02 | 制造商:Analog Devices 功能描述: |
| AD53063-03 | 制造商:Analog Devices 功能描述: |
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